The 3 different blade definitions

The 3 different blade definitions Most surgical scissors are manufactured with different blade types this all depends on the particular surgical practice being done by the doctor. The 3 different blade definitions are… Stainless Blades – The most common is the surgical scissors with stainless steel blades. The entire scissor is manufactured out of the exact same metal (stainless steel) and you should notice any ring colors. Tungsten Carbide Blades – Inserted only along the cutting surfaces of the blade is the metal tungsten carbide (A.K.A TC). These metal strips are much harder than stainless steel. When sharpened, this type of surgical scissor blades stay more sharp for a longer period of time and are attached to the stainless scissor by welding or vacuum brazing. These T.C. insert strips cannot be replaced once they become sharpened down. Tungsten carbide surgical scissors have gold rings to distinguish this design. Black Handled Surgical scissors – These surgical scissors are known as micro grind or super cut surgical scissors in the industry. The sharpening practice that is used to make these medical instruments is what makes it truly unique. This scissor will “knife” through whatever you will bring to it. All other surgical scissors crush, resulting in cutting, whereas the black handled scissor slices tissue. Black handled surgical scissors require special sharpening techniques using special medical equipment and must be re-sharpened three to four times a year. The unique features of these surgical scissors are the black colored rings. Gold Handled surgical scissors have cutting blades made of tungsten carbide. Becuase its rough and more harder, TC stay sharper longer. Inspect TC blades for cracks before tray assembly. If you see a crack, then send it back right away so the manufacture can replace it with the warranty.

curved blades and straight blades.

curved blades and straight blades. Surgical scissors are excellent surgical instruments for disection and for Focus Surgical Instruments. Most people are right-handed which is why many surgical scissors are created by the manufacturing company this way. Having a thumb-ring grip gives the greatest control & movability that applies max closing, torque & shear power using your natural grip movement of your right hand. You could find many different types of surgical scissors like there shapes and sizes, each of the surgical scissors have a name of a popular surgeon, there are 2 types for this: ones with curved blades and ones with straight blades. Surgical scissors with curved blades offer directional mobility, & visibility means you can have a smooth curve simply through tissue. The basic surgical scissor has a range of 15-20 degrees. Curved surgical scissors are extremely useful deep in a wound where horizontal cutting with good visibility is best. When cutting through rough tissue, straight surgical scissors have a big advantage. In certain cases, straight surgical scissors give additional of an accurate cut as opposed to the curved ones. Curved surgical scissors have 30 to 40 degree more mobility & visibility than straight ones. A significant selection of bone cutters are necessary surgical scissors for targeted purposes. Because of the resistance that bone offers to cutting, a plamed grip with surgical instruments, sometimes with two hands, is needed instead of the finger grip used with other surgical scissors. When the bone fragments spread. The jaws of the bone cutting medical tools close and easier with more tension. The tips of the blades, therefore, should be clear of any structure you do not desire to include in the cut. i.e., while using rib cutters it is proper to point the shears perpendicular to the chest wall with open blades as opposed to aimed toward the intercostal bundle. After you embark on a bite using the bone rongeurs, kerrisons or other cutters, all of the tension at the wound is rest to ease, so that the surgical instrument will not slip deeper as the bite is complete. When the only tension on the tissue is between the jaws of the surgical instruments, security is then gained. Surgical scissors can cut flaccid tissue successfully because the tissue is stabilized between the scissor blades. Surgical scissors cutting employs closing power, shear & torque to effect an exact cut. When you push cut you give a more smooth slice along the surface. “chewing” happens when you jagged and crusehd wound stuck between the blades of surgical scissors lacking in cutting force. When your cutting sutures with your scissor tip, look for the knot between the slightly spread blades, instead than underneath the surgical scissors. Try the left hand, the patient’s body, or some other structure thats stable be sure to steady the scissors when you do a delicate cut or when held by antoher person cutting sutures. When cutting a row of sutures, place the structure in your left hand so that each one becomes taut as you cut it & they do this so that the cut sutures are held out of the way. Focus Surgical Instruments can be achieved by spreading scissor blades between tissue planes or by achieving a probe or rake by using surgical scissors. Blind dissection is occasionally useful between tissue planes away from vital structures. for better visibility and maneuverability use curved scissors, whereas straight surgical scissors provide the greatest mechanical benefit when cutting tough, thick tissue.

The Best Way of Handling Surgical Scissors

The Best Way of Handling Surgical Scissors Focus Surgical scissors isn’t just a good medical tool for sharp cutting, surgical scissors with suitable tips are ideal for blunt dissection by spreading, ranking or probing.Focus Surgical scissors have an added advantage over a clamp for blunt dissection, because alternating sharp & blunt dissection can be done without switching back and forth your medical instruments. Blunt dissection separates tissue layers themselves. If you see any cementing substance it may be scar tissue from an earlier surgery or normal areolar tissue as in between fascial layers. Be aware of hurdles when cutting through the differnet sections of scar tissue, espically where the scar tissue comes in together with one of the layers. Blunt cutting of adhesions between layers proves risky when the adhesions have more tensile strength than the bound layers. A scar may bind bowel to fascia or parietal pericardium to the heart with greater tensile strength than is present in the bowel or in the interior the myocardium. Blunt cutting in these cases may be inappropriate and can result in an unintended enterostomy or entry in the myocardium. This is why its risky for blunt cutting where you see some old scares come together with natural planes or where dense scar tissue is stronger than the structures it blinds. Normally when doctors cut using surgical scissors its in direct view. Blind scissors cutting and blunt dissection can sometimes be of enormous advantage & could be accurate and secure. Such blind dissection is done between well-established tissue planes in anatomic regions away from such critical structures as large vessels and nerves. Blind surgical scissor dissection is an excellent way for opening a tunnel just underneath the dermis to put in a heterograft when you make an arterial venous fistula. You can also put blind surgical dissection to work in your favor while doing a breast biopsy through a small circumareolar cut. Often it is difficult to see the deep side of a breast lump; but, by palpation, using the left index finger as a guide, scissors could be used to circumscrive & get rid of the lump. While exposing major blood vessels by blunt cutting with scissors, be sure to express caution when doing this, because you could tear small tributaries and braches. If you use your surgical scissors to make a spread between a major vessel, be sure to focus & not make any tearing of side branches; whereas if spreading is done perpendicular to the great vessel; focus your full attention plaques. Both methods, through having drawbacks, can be used if the inherent problems are understood.

Surgical Scissors Shopping Information

Surgical Scissors Shopping Information Focus Surgical instruments is an online comparison shopping service in Surgical Scissors Shopping Information.Focus Surgical Scissors Shopping Information helps you buy the Surgical Scissors for the lowest price by comparing the prices offered by the top rated Surgical Scissors stores online in Pakistan. Check store information and reviews before you buy Surgical Scissors. Health Aids prices. are provided by the merchants and Surgical Scissors Shopping Information assumes no responsibility for accuracy of price information. Surgical Scissors product specifications are obtained from merchants or third parties and although we make every effort to present accurate information, Focus Surgical instruments is not responsible for inaccuracies. Store ratings and product reviews are written and submitted by online shoppers. They do not reflect our opinions and we take no responsibility for the content of ratings and reviews submitted by users. The purpose of Focus Surgical instruments is to help online shoppers 1. Shop online from hundreds of online retailers that deliver Surgical Scissors in Australia. 2. Research millions of products and hundreds of online stores before making your decision. You may purchase Surgical Healthcare or find wide range of Knee Braces online. 3. Read Focus Surgical instruments reviews and discuss online shopping related topics on our forums. 4. Narrow your choice by choosing from a large range of Ankle Braces for sale at the best price, brand or features. 5. Compare the cheapest Surgical Scissors prices from hundreds of online shops. 6. Find the best sales deals on Surgical Scissors from millions of products with the best discount prices. 7. Buy online Cheap Health Aids with confidence by reading genuine online store and product reviews. 8. Get the best sale and bargain available from our online stores at your own convenience. 9. Find the perfect Christmas gifts; consider Surgical Reachers deals for your Christmas shopping online or buy Glucose Tests. Avoid the last minute rush and get your Xmas shopping done early.

Welcome to Focus Surgical instruments

Welcome to Focus Surgical instruments Focus Surgical instruments,staff all the members are a scissors lover. Therefore , we work hard to think that we want to finish the best scissors with a visitor every day. After all knowledge as the professional and experience are necessary to send the best scissors to a visitor. Everything has been performed from the material to making in Japan, it’s selected carefully by a professional eye one by one and it has been completed. e pay scrupulous attention not to mention existing user and newly in us not to disappoint business and a become visitor and produce it. Therefore, we have confidence in each. We’ll support it with full strength to receive using a scissors surely. Aim at customer satisfaction 100%

Medical Machining

Medical Machining Focus Surgical instruments has been looking into the medical machining field for some time now. CNC machining is the process used to manufacture different types of medical tools such as scissors, clamps, surgical knives, syringes, and others. Medical instruments manufacturing uses advanced machining processes that help in producing precision medical tools and equipment required in the medical industry. Medical machining involves the machining of metal parts, which are extremely intricate and are mainly made from special alloys, stainless, or titanium. Different techniques used in medical machining include 5 axis milling, 6 axis machining, wire edm, and electro etching. Chemical etching machining process is mainly used for producing typical precision medical parts. The medical industry has very strict guidelines and regulations for how clean the environment must be as well as quality documentation. Many of the medical products must first be proven out with a working prototype and then followed up with the small volume production run. This is where Focus Surgical instruments is able to excel on both sides of the spectrum. The need for medical machining ranges from contract precision manufacturing of implants and surgical instruments to cardio/neuro stimulation, orthopedic, interventional, and drug delivery. As well as Prototyping leading to volume production and cleanroom, packaging, and labeling requirements.

New blood vessel formation

New blood vessel formation Longstanding views of new blood vessel formation via angiogenesis, vasculogenesis, and arteriogenesis have been recently reviewed1. The presence of circulating endothelial progenitor cells (EPCs) were first identified in adult human peripheral blood by Asahara et al. in 1997 2 bringing an infusion of new hypotheses and strategies for vascular regeneration and repair. EPCs are rare but normal components of circulating blood that home to sites of blood vessel formation or vascular remodeling, and facilitate either postnatal vasculogenesis, angiogenesis, or arteriogenesis largely via paracrine stimulation of existing vessel wall derived cells3. No specific marker to identify an EPC has been identified, and at present the state of the field is to understand that numerous cell types including proangiogenic hematopoietic stem and progenitor cells, circulating angiogenic cells, Tie2+ monocytes, myeloid progenitor cells, tumor associated macrophages, and M2 activated macrophages participate in stimulating the angiogenic process in a variety of preclinical animal model systems and in human subjects in numerous disease states4, 5. Endothelial colony forming cells (ECFCs) are rare circulating viable endothelial cells characterized by robust clonal proliferative potential, secondary and tertiary colony forming ability upon replating, and ability to form intrinsic in vivo vessels upon transplantation into immunodeficient mice6-8. While ECFCs have been successfully isolated from the peripheral blood of healthy adult subjects, umbilical cord blood (CB) of healthy newborn infants, and vessel wall of numerous human arterial and venous vessels 6-9, CB possesses the highest frequency of ECFCs7 that display the most robust clonal proliferative potential and form durable and functional blood vessels in vivo8, 10-13. While the derivation of ECFC from adult peripheral blood has been presented14, 15, here we describe the methodologies for the derivation, cloning, expansion, and in vitro as well as in vivo characterization of ECFCs from the human umbilical CB.

What’s Gynecomastia?

What’s Gynecomastia? | Tags: breast enlargement, gynecomastia, male breast, male breast enlargement The word Gynecomastia comes from two Greek words, Gyne which means Woman and Mastos which means breast. A loose translation could be “woman like breasts”. They are also know as steroid breasts or bitch tits as some people unkindly call them. Gynecomastia really describes a condition whereby breast tissue builds up in a male’s chest creating what appear to be feminine breasts. These breasts may be fairly tender and sensitive. The situation man boobs is extremely common in adolescent boys, however, in about 90% of those cases, the condition disappears by natural means as their adolescence follows it is program. Probably the most extreme method of getting rid of gynecomastia is via beauty surgical treatment. Unfortunately it is also the first way that almost all guys think of. Plastic surgeons are able to getting rid of gynecomastia even though the success rate is not as high as some would like. Additionally, it is a costly process and can cost between $4000 and $10,000 depending on a number of factors. The degree of gynecomastia, the city you reside in and of course the physician you use will all have an effect on the price of gynecomastia surgical treatment. If you are thinking about gynecomastia surgery do not let the cost cause you to select a less expensive and less experienced physician. It is a difficult procedure and also you wish to possess the most experienced surgeon possible. Poor surgery can result in scarring, asymmetry of the chest as well as additional surgical procedures so make sure you select cautiously in the event you determine to make use of surgery to rid yourself of gynecomastia. Gynecomastia is generally attributed to both an imbalance of intercourse hormones or the sensitivity of the breast tissue to these hormones (that’s, you’ve got a regular hormone level but your breast tissue is over-sensitive to these hormones), though a particular cause is rarely determinable in every person situation. The exception to the above is if you take either the drug Digoxin or Furosemide or each, as approximately 4-10% of all gynecomastia cases are because of these drugs (the possibilities are higher if both medicines are administer simultaneously). Finally, it may be because of excess fat, aka weight problems. In this case the problem isn’t really gynecomastia, but that’s something specifically caused by extra mammary tissue, while within this situation your “man boobs” are caused by extra fat, not mammary tissue. The right way to cope with gynecomastia is to deal with the underlying trigger, that is typically a hormone imbalance, and when carried out correctly will usually lead to a significant improvement within the condition inside a fairly short time period of time. To begin with, any medicines such as the ones mentioned over that could aggravate or even trigger the patient’s gynecomastia ought to be switched for an alternate that won’t do this (e.g. risperdal may be altered out for eplerenone). Effective endocrinological (endocrinological = “dealing with hormones and the glands that generate them such because the endocrine glands”) treatment should be done inside the first 2-3 many years because after the breast tissue will have a tendency to harden at which stage surgical treatment becomes the sole option (the surgical treatment in question would possibly consist of liposuction, pores and skin sculpture, reduction mammoplasty, gland excision, or a mixture of these techniques). The kind of treatment, within these 1st 2-3 many years, that would be a choice would include medicines referred to as “selective estrogen receptor modulators”, this kind of as tamoxifen and clomiphene, or certain androgen drugs (in short, which means testosterone or perhaps a artificial version that elicits basically the same response from the physique) or aromatase inhibitors like Letrozole.

Three Simple Yet Powerful Exercises To Lose Man Boobs

Three Simple Yet Powerful Exercises To Lose Man Boobs While it is an asset for a woman, having a pair of massive boobs is embarassing for a guy. Man boobs can be either plain hormonal or medical so it is critical to understand the reason for the enlargement by going to visit the doctor rather than jumping to conclusions and solutions without a single clue. Minor cases of man boob matters are normally subject to lifestyle restructuring. Why? Because hormone imbalance is the result of unhealthy eating habits and lack of exercise, but do not worry. It is reversible. By being aware of the foodstuffs you eat and getting a regular workout, you can get rid of them naturally. Men with man boobs though are special cases that need a group of particular exercises. These exercises target your testosterone principally so you are targeting the compound muscles. No, they will not help build muscles but they’ll definitely increase your hormone levels. Essentially, we are talking about the two-minute muscle tension. Air squats – From standing position, slowly shift to a sitting position while your palms are resting in the back of your head. This is to activate the large muscle groups. Remember that you only need two minutes to try this as lengthened air squats may cause major muscle strains. Anabolic exercises – Jumping jacks, stationary seat, and push ups are major parts of these. Performing these exercises for 30 minutes a day will help in promoting testosterone production, burn up fat, and develop muscles. You can do these at home or at the gym if you need more inducement. Keeping your mind focused on these activities pretty constantly can be tricky as you need to commit 30 minutes each day but they are worthwhile. For people that haven’t any idea how a stationary seat is done, this is how it goes: Push your back against the wall and remain in sitting position for 30 seconds. This may sound straightforward but the challenge here is the required length of time you need to hold this position. What occurs in those 30 seconds will benefit your hormones so there’s no time wasted. Iron Squeeze – The purpose of this exercise is to boost blood and oxygen flow in your chest area which result in speedier muscle sculpting. This is performed by tensing and flexing the pectoral or the chest muscles and holding the flex for about a minute. Do not release just yet as you still have to massage the chest muscles while holding that flex. The delicate yet firm massage should take a moment to permit proper blood flow around your pectoral and then, relax. Grip the pectoral again and massage firmly yet gently for a minute and then release. For the last part, note this is just the 1st segment. A slightly different iron squeeze known as Variation B should be done as well during workout days. This is done by stretching your arms backwards down to your buttocks, breathing in deeply , and flexing your chest. Variation B is done three times in a row. Usually, it is not the exercise programs that are stressing but the quantity of time you have got to put in to stay alongside of the routine. It is known as commitment. Before you even begin, study the workouts thoroughly and decide whether you need to put yourself under strict schedule and activities. Once you’ve made up your mind, make sure that you stick to them so you can say bye bye to your man boobs for life. Cliff Manchester is the author and publisher of the online hit Chest Coach System, an ebook that explains the causes of man boobs and the many issues surrounding the topic. Having been a man-boob sufferer himself, Cliff shares tons of useful information and tips in his web site, which have helped countless men to develop chest well-being and recover their self-confidence.

Safety Is Of Utmost significance In plastic material Surgery

Safety Is Of Utmost significance In plastic material Surgery Surgery is undoubtedly no child stuff. All plastic material surgeons ought for getting conscious of this. But nobody is perfect, which include the just one executing the plastic material surgery. The chance of one thing going awry looms large in any plastic material surgery. getting constantly conscious from the variables are going to be the important thing activity in controlling them,Swiss Replica IWC Watches and also this job should be constantly in the forefront from the surgeon’s mind. every little thing feasible should be carried out to produce plastic material surgical treatment as risk-free as possible. The plastic material surgical treatment itself, getting genuinely skin-deep, poses no instant threat. Anesthesia, remedies as well as the physiology of plan response alter the equation. although there are lots of particular problems and annoyances attached using the different procedures, they are not existence threatening. The risk of serious sickness or decrease of existence can be an even more matter. These are, and should really be, pretty rare, but as evidenced in current newspaper headlines, it has happened. cautious scrutiny invariably indicts anesthesia, remedies administered at surgical treatment or remedies used with the affected individual before to the plastic material surgery. what ever the cause, each and every and every work should be made to keep away from this sort of horrendous events. Over the last decade, plastic material surgical treatment has moved from hospital to ambulance surgical treatment clinic. This reflects many realities. individuals are well,Replica Omega Speedmaster Watches and undergoing pretty minor procedures, and consequently do not should be hospitalized overnight. this really is cost-effective and much more pleasant using the patient. Most ambulatory surgical treatment services are governed and frequently inspected with the American Association for Accreditation of Ambulatory surgical treatment services Inc. this really can be an set that supervises the traditional of treatment for plastic material surgical treatment facilities. In purchase to cut back the occurrence of mishaps all through plastic material surgery, well-trained specialists are required, which include nurses, surgeons and anesthesiologist. In addition, the whole plastic material surgical treatment method should be approached like a existence and passing away issue. The patient’s health care conditions, if any, should be recognised and, when necessary, discussed using the patient’s physician. each and every operation ought for getting carried out using the affected individual adequately sedated. But the instant remedies are delivered, the affected individual should be completely monitored and observed until he regains consciousness. This needs time, staff members and experience. something much less will shortchanges the patient.

Titanium Micro Ophthalmic Instruments

Titanium Micro Ophthalmic Instruments Titanium Micro Ophthalmic Instruments We offer a wide range of titanium micro ophthalmic instruments like surgical choppers, surgical folders, surgical forceps, lens inserter that find application in ophthalmic surgical instruments in government hospitals, private clinics and nursing homes. Our range include: Surgical Choppers We offer a wide array of choppers that come with single as well as double ended chopping edge. Our skilled team have expertise in making phaco chop sharp edge as well as phaco chop blunt edge choppers. These find application in ophthalmic surgeries in government hospitals, private clinics and nursing homes. Features: • Our skilled technicians helps us to provide choppers in varied lengths. This include: 145 mm, 115mm and 145 mm. • It also comes with sinsky hook and ball manipulator. Surgical Folders We offer a wide array of folders that are used as ophthalmic surgical instruments in hospitals, clinics and nursing homes. Our expert team helps us to manufacture this using phaco sillicon. It comes with different variations. They are: • Phaco silicon soft lens folder • Phaco silicon soft lens inserter with lock • Phaco acrylic lens folder • Phaco acrylic soft lens folder box type These folders come in different sizes,such as : 108 mm and 116 mm. Lens Inserters We offer a wide range of inserter that find application in ophthalmic surgical instruments in hospitals and clinics. With the help of our skilled team, we offer inserters in standard finishes with length such as 108 mm and 112 mm. These come with the following variations: • Phaco acrylic lens inserter • Phaco acrylic soft lens inserter to be used with MP 36 lens folder • Inserter for folding and holding the shaft Surgical Manipulators We manufacture a wide array of manipulators that have application in ophthalmic surgical instruments. Our skilled workforce helps us to manufacture manipulator in 115 mm and 145 mm in length. Offering manipulator in different sizes, we strive to meet the requirements of our clients. Our range comes with following variations: • No hole IOL manipulators • IOL manipulator ball ended • Sinsky hook and ball manipulator with double Needle Holders We provide a wide array of needle holder that find application in ophthalmic surgery in hospitals and clinics. With the help of our skilled team, we offer needle holders in standard finishes to meet the varied requirements of our end clients. We offer needle holders in 113 mm and 120mm length and in varied types: • Needle holder barraquer straight without lock • Needle holder barraquer straight with lock • Needle holder barraquer curved without lock • Needle holder barraquer curved with lock • Needle holder barraquer long model • Needle holder castrovejieo curved delicate without lock and many more. Pre Choppers We offer a wide array of pre shopper that has application as ophthalmic surgical instruments. Our skilled team helps us to manufacture pre chopper that has optimum functionality, smooth finish and made of quality material. Surgical Repositor We provide a wide array of repositor that find application in ophthalmic surgical instruments in hospitals and clinics. With the help of our skilled team, we offer repositors in standard finishes to meet the varied requirements of our end clients. Surgical Scissors We offer a wide array of scissors that are used as important instruments in ophthalmic surgical activities. These medically effective instruments and equipment for ophthalmic surgeries are made using superior quality metals. These come in smooth finishes. We offer different types of scissors. They are: • Castroviejo corneoscieral scissors with small , medium blades 7 mm and 10 mm blades. • Castroviejo corneal scissors, micro universal curved with fine blunt tips • Castroviejo micro corneal scissors angled on flat with 11 mm blades and many more

Metzenbaum Tonsil Scissors

Metzenbaum Tonsil Scissors Posted on May 4, 2012 Metzenbaum Tonsil Scissors We are offering metzenbaum tonsil forceps in a huge gamut, which can be applied in various surgical applications in hospitals. These are available in certain patterns and different specifications as per the clients’ specific requirements. Robust designs, fine cutting edges, smooth finishing, standard designed are the key driving features of these forceps that make them praised by the clients. Available in metzendaum tonsil scissor st & cd 5″, 6″, 7″, 8″, 9″. Features: fine cutting edges smooth finishing robust designs. Blunt Tip Towel Forcep Backhaus We are one of the most prominent manufacturers, exporters and suppliers of a wide range of surgical instruments, which are manufactured by using optimum quality components and modern technologies. These instruments are specially designed for the specific action that may be required at the time of operations. Mayo Hegars Neddle Holders Straight suppliers of a wide range of surgical instruments, which are manufactured by using optimum quality components and modern technologies. These instruments are specially designed for the specific action that may be required Spencer Wells Artery Forceps Spencer wells artery forceps offered by us are made by utilizing high quality stainless steel that assures its high durability and smooth functionality. All these spencer wells artery forceps are highly demanded and appreciated by our customers due to our steadfast and timely delivery of these quality products. Equipped with pivot screw for easy adjustments, these instruments are unavailable in size of st & cd. 5″, 6″, 7″, and 8″. Features: précised designs sturdiness easy to handl Allis Tissue Forceps Allis tissue forceps offered by are high on performances and these are highly demanded by our esteemed clientele. All these products are engineered designed and corrosion resistant, which assures its high durability and provides them long service life. We are offering our customers these surgical instruments in varied range of specifications as per their specific requirements. Allies tissue forceps can be availed in size of 6″, 7″, and 8″. Features: corrosion resistant easier gripping sturdy construction Kocher”s Artery Forceps We offer Artery Forceps and clamps with cross me mbers having a pair of gripping arms that are pivotally connected to a pair of clamping arms. The clamping arms comprise a pair of end members and these are directed away from the axis of the gripping arms. The artery forceps & clamps we offer are made in accordance to medical standards and are available at cost effective prices. Spencer Wells Artery Forceps STR/CUD We are instrumental in fabricating artery forceps – mosquito type that are designed to handle, grasp or compress tissues or organs, including arteries. These forceps are applicable for can either holding the artery in place or closing off the artery, depending on the circumstances. These forceps have a locking mechanism near the finger loops and are and are sometimes referred to as clamps or kelly-type forceps. Towel Forceps Backhaus Our high quality forceps are widely used across the health care industry. These high precision forceps are manufactured with client specifications and are resistant to corrosion and rust.

Plastic surgery

Plastic surgery Posted on May 4, 2012 Plastic surgery is a type of surgery that is becoming quite common in the present days. For it to be carried out more effectively and efficiently, the right and correct surgical instruments are to be put in place for the whole process to be successful. The plastic surgery scissors together with other instruments used in this type of operation are used by the cosmetic surgeons who decide and tell the type of operations to be carried out and the types of features that the instruments must posses in order to be used in the surgical operation. In that case they consider the type of operation and command the types of surgical instruments that are fit for the operation process. Fine and high quality surgical instruments are required in any plastic surgery operation thereby demanding that the plastic surgery scissors also be the same. The right features and size are also the major factors to be considered when selecting the type of the plastic surgery scissors for a specific operation pr Focus Surgical Instruments has come in handy to help in the production of the highest quality surgical instruments whereby the plastic surgery scissors are an example. The medical and surgical instruments that are manufactured and supplied by the Focus surgical Instruments are actually constructed with the right material that is durable. The material itself is stainless steel which dos not rust thus offering a longer operation service to the medical doctors who use them. The construction also uses the best craftsmanship in the production of the instruments like the scissors that ultimately offer the best services while using them in the field. The art of constructing the various surgical instruments and the use of the right materials in their construction has actually seen the company through as the leading in the designing and constructing various surgical instruments. Focus Surgical instruments requires to be carried in a more tolerable ay so the sharpest plastic surgery scissors are required for the operation process to be considered effective. In the construction of these instruments, the engineers developed the right size of the instrument that is 4 ¾ ‘’ with other quality features like the shape which is taken to be straight. During the surgical operation the instrument will be used together with other surgical instruments such as the retractors and scalpels in order to make the whole plastic surgery operations effective. The rates for the purchase of the Focus surgical scissors are economical yet quite effective in carrying out its functioning. Save yourself the agony of ineffective surgical operations due to ineffective surgical instruments now and visit the online catalog for the blacksmith company where all the operation instruments are discussed in details without and the features of all the instruments elaborated as they help in their functioning. Shop online through the blacksmith directory and you will love the amazing results of the operations undertaken with the instruments.

Surgical Scissor Inspection Tips

Surgical Scissor Inspection Tips Posted on May 4, 2012 Surgical Scissor Inspection Tips Inspecting your surgical instruments is an important process. Every surgical instrument has unique points of inspection, like needle holders and hemostats. Proper examination of your instruments can help with surgical instrument maintenance and repairs. Below are points of inspection for surgical scissors. Blunt tips: Tips should be rounded to prevent puncturing and tearing. Inspect tips for corrosion and burrs. Sharp tips: Scissor tips are very fragile. Make sure both tips are present. Inspect for bent tips, damage and burrs. Blades: Inspect blades for chips or burrs on the cutting surface. If scissor has Tungsten Carbide blades (gold rings), inspect the blade insert for crack and the union where Tungsten Carbide meets the stainless steel for signs of pitting. Screw/hinge area: Inspect both sides for the presence of cracking and blood/bioburden trapped in the screw head. The screw/hinge area is the area of the scissor most prone to trapped blood/bioburden and staining. Rings: Inspect the rings for cracks. Scissor action: To inspect the cutting action of a scissor, simply open and close the scissor three to four times. This opening and closing action should feel smooth. The scissor action should not be loose, tight and grinding, or jump. The scissor action test is important, as the initial action of a scissor is the surgeon’s first impression

Surgical scissors – Focus Surgical instruments

Surgical scissors – Focus Surgical instruments These surgical scissors are Focus Surgical instruments and are made of brushed steel. Since a new instrument is used each time,Focus Surgical instruments always offer highest precision and functionality. The surgical scissors are, like all Focus Surgical instruments, clearly marked as such – thus, the risk of mixing single-use instruments and traditional instruments is greatly reduced. The surgical scissors are available in various shapes and lengths. Product details Surgical scissors Available in various designs Material: brushed steel Sterile shelf life: 5 years Individually sterile sealed Clearly marked as a single-use instrument Dispenser with 25 individually packed surgical scissors Fields of application Surgical scissors are a classic surgical instrument for cutting through tissue and dressing materials. They are also often used to pull threads. Surgical scissors are an important part of a surgical instrument collection and can be used in virtually all surgical procedures. About Focus Surgical instruments Focus Surgical instruments as an economical and safe alternative to reusable instruments. The single-use instruments from Focus are made from matt, brushed steel. The brushed steel is not reflective and thus provides increased safety for the user. Thanks to a procedure specially developed by Focus, the single-use instruments are cleaned prior to sterilization. Thus, the single-use instruments are reliably clean and sterile. Focus Surgical instruments not only prevent the occurrence of cross contamination, but also undoubtedly have the feel and handling properties that are the hallmarks of high-quality medical instruments. In order to prevent mixing of the Focus Surgical instruments with traditional instruments, these single-use instruments from Hartmann are clearly marked as such on both sides. Since Focus Surgical instruments do not have to be reprocessed, you effectively save time and costs – this is true not only for smaller medical practices, but also for hospitals or in the case of instruments used as a supply in doctor’s bags or doctor’s cases. Every single-use instrument is individually sterile packed and has a sterile shelf life of 5 years. Thus, your Focus Surgical instruments are always at hand and ready for use. The Focus Surgical instruments series offers a range of different types of instruments in different variations. From anatomical forceps to specialised surgical instruments, the instruments in the Focus Surgical instruments series cover all the major types of medical instruments. Focus Surgical instruments can be disposed of in non-penetrable containers via household waste. In the case of incineration, the recycled material can be used to manufacture new products.

Focus Surgical Instruments Celebrating 43 Years of Dedication to Medical Professionals

Focus Surgical Instruments Celebrating 43 Years of Dedication to Medical Professionals Posted on May 4, 2012 Focus Surgical Instruments is a leading medical instrument company. We provide equipment of the highest quality and continuously carry out research and development so that we can meet the needs of the most discriminating medical professionals in a wide range of specialty areas. With a full line of ENT instruments and office equipment and a complete range of products in the fields of ophthalmology, dentistry, telemedicine, audiology, and facial plastic surgery, JEDMED has built a reputation for providing the most reliable equipment available. We are committed to offering the medical community an ever-expanding selection of the latest equipment, as well as exceptional customer service. Producing Meticulously Crafted Medical Instruments for Over 43 Years Whether you are seeking ENT equipment, medical office equipment, or something else in our wide range of medical products, you can obtain proven and reliable medical equipment from the highly experienced professionals at Focus Surgical Instruments. Our company was founded on the principle that only the highest standards of research and development, and continuous innovation, will allow us to meet the needs of the world’s most accomplished medical professionals.is a leading medical instrument company. We provide equipment of the highest quality and continuously carry out research and development so that we can meet the needs of the most discriminating medical professionals in a wide range of specialty areas. With a full line of ENT instruments and office equipment and a complete range of products in the fields of ophthalmology, dentistry, telemedicine, audiology, and facial plastic surgery, Focus Surgical Instruments has built a reputation for providing the most reliable equipment available. We are committed to offering the medical community an ever-expanding selection of the latest equipment, as well as exceptional customer service. Producing Meticulously Crafted Medical Instruments for Over 33 Years

Manufacturing Surgical Instruments

Manufacturing Surgical Instruments Posted on May 4, 2012 Manufacturing Surgical Instruments The first stage in manufacturing is to develop the forging, or in other words create a stamp of the surgical instruments rough outline from a heated bar of stainless steel. The next step is to grind and mill the forging, which is how the excess steel is removed. For some surgical instruments like scissors and hemostats, more than twenty milling operations are performed, including the creating of male and female halves, cutting of precise serrations and matching of ratchets. Our surgical instrument makers undergo several years of apprenticeship, training under the guidance of an experienced crafts-person. Numerous quality checks and finishing applications are performed on each instrument, ensuring the quality and perfection. When assembly is complete, all surgical instruments undergo a final procedure where they are heated to approximately 1500 degrees Fahrenheit and cooled in a controlled fashion. This step provides the medical instruments with their hardness. The next stage consists of improving a surgical instruments resistance to corrosion, which is achieved through polishing and passivation. Polishing gives the medical instruments a smooth finish and lustrous final appearance. The finish can be shiny (mirror-finish) or matte/satin, which gives a gray-colored surface that doesn’t reflect light. The passivation process uses nitric acid to remove the iron content from the outside layer of the medical instrument. Removal of this iron helps build a layer of chromium oxide, which is highly resistant to corrosion and continues to build throughout the life of the medical instrument. At this point the medical instruments are ready for final inspection. Our goal and mission has been developing, sourcing, and distributing high quality Focus surgical instruments with manufacturers.

Scalpel

Scalpel Posted on May 4, 2012 Scalpel A scalpel is a Focus surgical instrument used for dental surgery to incise soft tissue. This Focus surgical instrument has three very sharp blades and two knife handle. A scalpel may be disposable or re-usable. A disposable scalpel usually has a plastic handle with an extensible blade and can only be used once. The scalpel blades are made from hardened and tempered steel and high carbon steel. The dental blades are Bard Parker nos. 10, 11, 12 and 15. Each dental blade number for this Focus surgical instrument has its own primary use. The number 11 dental blade is used primarily for incision and drainage when puncture-type incision is preferred and when blind cutting of deep tissue is necessary. The no. 2 dental blade is especially good for incision of the marginal gingivae and adapts well to following the cervical lines of the teeth. The number 15 dental blade is for general use. It is excellent for most skin and mucosal incision while the no. 10 dental blade is most often used for incising skin in extraoral procedures. Double-Curette The primary use of this Focus surgical instrument is to remove soft tissues from a bone defect or from the apex of a socket. Curettes are available in three sizes; small, medium and large. After the removal of any diseased tooth, it is good practice to check the apex of the socket with a curette. Surgical Needle Focus surgical needles are needed to safely carry out suture material thru tissue with least amount of trauma to the patient. Characteristics of high quality steel needles: 1. Is immutable enough to prevent excessive bending, yet flexible enough to prevent breaking after bending. 2. It should be sharp enough to penetrate soft tissue with minimal resistance. 3. It should be of the same diameter as the suture material it carries to minimize trauma in passage thru tissue. The shape and size should be suitable for the type, condition, and accessibility of the tissue to be sutured. 4. The surgical needle should be rust-free; to prevent infection and tissue trauma. All dental surgical needles have three basic components; the point, the body or shaft and the eye. Needle Holder The best needle holders for oral surgery procedures are 6 inch long hegar-mayo needle holder or the 5 ½ inch long Mathieu needle holder. Surgical Scissors There are a variety of dental scissors available to the surgeon. The two main types of dental scissors are referred to as the suture scissors and the tissue scissors. The curved Mayo 6-inch scissors with two sharp points works well for dissecting and trimming wound margins. To have an accurate and careful trimming it is best to immobilize the tissue by means of tissue forceps. Another common dental scissor used for oral surgery techniques is the Dean scissors. It is a long handled instrument. The cutting surface of this dental surgical instrument is at the angle from the body of the instrument that permits easy access to the tissue in the oral cavity. When undermining the tissue with the dental scissors, the incised margins are immobilized with the dental forceps and the dental scissors are inserted in the closed position and forcibly spread apart. The purpose of this Focus surgical technique is to sharply dissect the tissue with minimal hemorrhage or to avoid cutting significant anatomic structures. The exact dental suture scissor is a straight- bladed instrument with Mayo 6-inch blunt surface and one sharp point that permits the assistant to slide the blade down the suture strand until it stops on the knot, at which point the suture is cut. Suture A suture is act of sewing by bringing the tissue together and holding them until healed. Dental sutures have two classifications: the absorbable and non-absorbable sutures. Examples of absorbable dental sutures are surgical gut, plain surgical gut, chromic surgical gut, collagen sutures, and synthetic absorbable polymer. Examples of non-absorbable dental sutures are the following: surgical silk, virgin silk and dermal silk. Suturing the after the dental procedure is very important because it helps the wound heal easily and it additionally avoids the food to enter into the wounds which is a common problem among dental patients.

Uretero Renoscope

Uretero Renoscope Posted on May 4, 2012 Uretero Renoscope We have with us a highly advanced series of Uretero Renoscope that makes a delivery of quality in our products. We also make utility of various factors of quality check upon procurement. We have introduced various pricing schemes that fit the bill for many public sector health units as well. Our clients can also avail customization on our output Medical Adaptors The Medical Adaptors has to its name a way of delivering perfection of dynamics through and through. We have also been utilizing various factors of perfection when it comes to understanding the needs of the changing markets. We sell at highly reasonable prices so that we could take part in the various governments run public health care programs as well. Stone Grasping Forcep The Stone Grasping Forcep come as a product of excellent utility across various patterns and operations of the renal cavity. We have been making an excellent utility of various client feedback programs that help us understand the specific needs of the industry. Additionally, we sell at highly reasonable prices, that we achieve through a innovative application on our sales schemes. Rigid Flexible 4 Charr. H50-080-102 4 Charr. H50-080-202 5 Charr. H50-080-103 5 Charr. H50-080-204 Stone Grasping Forceps We have been selling a large collection of highly sophisticated stone grasping forceps That sells at very reasonable prices. We also have to our name many factors of perfection that go a long way towards ensuring perfection of design with many inculcated parameters of perfection in the very long run. We sell at competitive pricing schemes and keep in mind our promise of service to the public health sector. Rigid Flexible 4 Charr. H50-080-100 4 Charr. H50-080-200 5 Charr. H50-080-101 5 Charr. H50-080-201 Long Stone Grasping Forceps The Long Stone Grasping Forcipes from the house of advanced health care resources comes with the promise of accuracy and precision in its delivery. In addition, we have been making use of the best in terms of product engineering and dynamics for the long run. We also have to our name various computerized systems that come to deliver perfection in terms of accuracy in reading. Rigid Flexible 4 Charr. H50-080-104 4 Charr. H50-080-204 5 Charr. H50-080-105 5 Charr. H50-080-205 Biopsy Forceps The Biopsy forceps from the house of advanced health care resources comes with the promise of accuracy and precision in its delivery. Additionally, we have been making use of the best in terms of product engineering and dynamics for the long run. We also have to our name various computerized systems that come to deliver perfection in terms of accuracy in reading. Besides, the digital functions of our machine also add to the factor of accuracy. Rigid Flexible 4 Charr. H50-080-106 4 Charr. H50-080-206 5 Charr. H50-080-107 5 Charr. H50-080-207 Surgical Scissors The Surgical Scissors from the house of advanced health care resources comes mostly fabricated from highly sophisticated ergonomically engineered lightweight and compact design. Almost all of the important components in our product come imported with an excellent and efficient fragmentation of stones. Rigid Flexible 4 Charr. H50-080-108 4 Charr. H50-080-208 5 Charr. H50-080-109 5 Charr. H50-080-209 Our Products Pulselith Pneumatic Lithotripter Pulse Led Light Source Urology Disposable Uretero Renoscope Instrument Uretero Renoscope Medical Adaptors Stone Grasping Forcep Stone Grasping Forceps Long Stone Grasping Forceps Biopsy Forceps Surgical Scissors Cystoscope & Urethroscope Sheath Medical Telescope Resectoscope Instrument Nephroscope Instrument Continuous Flow Hysteroscope Sheath Urethral Dilator Disposables

Skill of Surgical Scissors

Skill of Surgical Scissors Posted on May 5, 2012 General surgical instruments are the basis for each surgery. Whilst skill, precision and continuity are important factors in the success of surgical operations, equally similar high standards need to be applied to the surgical instruments used. Scissors Forceps Organ and Tissue Grasping Forceps Haemostatic Forceps, Bulldog Clamps, Vessel Clips, Approximators Dissecting- and Ligature Forceps Surgical Needles, Needle Cases Needle Holder, Suture Instruments, Ligature Needles Wound Retractors Self-Retaining Retractors, Abdominal Retractors Abdominal Surgery Intestinal- and Rectal Instruments Gall Bladder-, Liver- and Spleen Instruments.

Skill of Surgical Scissors

Skill of Surgical Scissors Posted on May 5, 2012 General surgical instruments are the basis for each surgery. Whilst skill, precision and continuity are important factors in the success of surgical operations, equally similar high standards need to be applied to the surgical instruments used. Scissors Forceps Organ and Tissue Grasping Forceps Haemostatic Forceps, Bulldog Clamps, Vessel Clips, Approximators Dissecting- and Ligature Forceps Surgical Needles, Needle Cases Needle Holder, Suture Instruments, Ligature Needles Wound Retractors Self-Retaining Retractors, Abdominal Retractors Abdominal Surgery Intestinal- and Rectal Instruments Gall Bladder-, Liver- and Spleen Instruments.

Surgical scissors and method for the manufacture of surgical scissors

Surgical scissors and method for the manufacture of surgical scissors Posted on May 5, 2012 1. Surgical scissors, comprising: two scissor blades, each of which is made entirely of the same steel material, said scissor blades being mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, said scissor blades having proximally of the pivot axis one steel sliding surface area each, said steel sliding surface areas sliding along each other and said scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating, wherein: the two steel sliding surface areas have a first hard material coating-free surface comprising said steel material of said corresponding scissor blade; and the entire scissor blades are provided with the hard material coating except for the steel sliding surface areas having the hard material coating-free surface. 2. Scissors in accordance with claim 1, wherein: the two scissor blades are held together by a connecting screw having a screw head and defining the pivot axis, an area of one of the scissor blades in contact with an underside of the screw head forms a contact surface corresponding substantially to a shape and surface of the underside of the screw head, and the contact surface has a second hard material coating-free surface or a surface which has a hard material coating and is polished smooth. 3. Scissors in accordance with claim 2, wherein at least one of the first and the second hard material coating-free surface has a high surface quality. 4. Scissors in accordance with claim 2, wherein at least one of the first and the second hard material coating-free surface is produced by removing a hard material coating and high-gloss polishing the scissor blades. 5. Scissors in accordance with claim 2, wherein a shape of the second hard material coating-free surface is substantially annular. 6. Scissors in accordance with claim 1, wherein at least one of the two cutting edges is made of a hard metal. 7. Scissors in accordance with claim 1, wherein the hard material coating is titanium-nitride (TiN), titanium-carbon-nitride (TiCN), titanium-aluminium-nitride (TiAlN) or a diamond-like carbon (DLC) coating. 8. Scissors in accordance with claim 1, wherein the first hard material coating-free surface of the sliding surface areas extends fully or substantially fully over an inner side of the scissor blades, each of which includes the sliding surface area with the hard material coating-free surface and points in a direction towards the other scissor blade. 9. Scissors in accordance with claim 1, wherein a shape of the sliding surface areas with the first hard material coating-free surface is substantially rectangular. 10. Scissors in accordance with claim 1, wherein a connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. 11. Method for the manufacture of surgical scissors, comprising: mounting two scissor blades for pivotal movement relative to each other about a pivot axis, each of said scissor blades being made entirely of the same steel material, providing each scissor blade with one cutting edge each, said scissor blades having proximally of the pivot axis one steel sliding surface area each, said steel sliding surface areas sliding along each other and said scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and providing at least one of the cutting edges with a hard material coating, wherein: surfaces of the two steel sliding surface areas are manufactured so as to be hard material coating-free; and the entire scissor blades are provided with the hard material coating except for the steel sliding surface areas having a hard material coating-free surface comprising said steel material of said corresponding scissor blade. 12. Method in accordance with claim 11, wherein: the two scissor blades are held together by a connecting screw comprising a screw head and defining the pivot axis, an area of one of the scissor blades in contact with an underside of the screw head forms a contact surface corresponding substantially to a shape and surface of the underside of the screw head, and the contact surface is manufactured so as to be hard material coating-free or is provided with a hard material coating and subsequently polished smooth. 13. Method in accordance with claim 12, wherein the surface of the contact surface is covered prior to application of the hard material coating to the scissors. 14. Method in accordance with any claim 12, wherein at least one of the connecting screw and eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. BACKGROUND OF THE INVENTION The present invention relates to surgical scissors with two scissor blades mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, the scissor blades having proximally of the pivot axis one sliding surface area each, the sliding surface areas sliding along each other and the scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating. The present invention further relates to a method for the manufacture of surgical scissors with two scissor blades mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, the scissor blades having proximally of the pivot axis one sliding surface area each, the sliding surface areas sliding along each other and the scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating. A hard material coating within the meaning of this application is to be understood as a coating whose hardness is significantly increased in comparison with a base material forming the scissor blades. It is not to be understood as ceramic coating or coating applied by welding. Surgical scissors of the kind described at the outset are used in order to increase a service life of the scissors in comparison with uncoated scissors. This is achieved, in particular, by at least one of the cutting edges being provided with a single-layer or multi-layer hard material coating, applied, for example, by chemical vapor deposition (CVD). In particular, titanium-nitride can be applied in a vacuum chamber by evaporating titanium in a nitrogen plasma. Of course, both cutting edges may also be provided with a hard material coating. Furthermore, it is known that the scissor blades mounted on each other under initial tension contact each other at at least two points or areas when the scissors are opened and closed. These are, firstly, a moving point of contact of the cutting blades sliding along each other and, secondly, a point of contact or a contact surface of the sliding surface areas of the two scissor blades that slide along each other. The initial tension between the scissor blades required for the cutting can only be maintained on a long-term basis if not only wear at the cutting edges is minimized but also wear at the sliding surface areas that slide along each other. The object of the present invention is, therefore, to so improve surgical scissors of the kind described at the outset that their service life is further increased. SUMMARY OF THE INVENTION This object is accomplished with surgical scissors of the kind described at the outset, in accordance with the invention, in that at least one of the two sliding surface areas has a first hard material coating-free surface. Owing to this special type of coating, in particular, in the case of scissors provided completely with a hard material coating, the applied particles of the coating, when attacked, for example, by chemicals, are prevented from mutually acting as abrasive agents owing to their extreme inherent hardness and the sliding surface areas of both scissor blades from becoming worn down as a result. As a negative consequence of the wear the initial tension of the scissors decreases in an undesired manner in the course of time. The wear in the area of the cutting edges is indeed reduced, in particular, by applying a hard material coating to both cutting edges and both sliding surface areas, but it is increased at the sliding surface areas. The present invention remedies this by the two sliding surface areas that slide along each other having different surfaces. Owing to the one sliding surface area having a surface provided with a hard material coating, and the other sliding surface area having a first hard material coating-free surface, the two sliding surface areas can no longer affect each other mutually, whereby wear of the sliding surface areas is minimized. As a positive consequence of this, the initial tension of the scissors is maintained for a longer time than with known scissors, so that all in all the service life of the scissors is increased. The service life of the scissors may be further increased by both sliding surface areas having a hard material coating-free surface. It can thus be avoided that in the most unfavorable case a surface with a hard material coating and a surface without a hard material coating, which do not have good sliding properties, will encounter each other. Furthermore, in the case of scissors of the kind described at the outset, it may be advantageous for at least one of the two sliding surface areas to have a surface provided with a hard material coating, which is polished smooth. Such a design makes it possible for the entire scissors, i. e., all its surfaces, to be provided with a hard material coating. An increased service life is achieved in that owing to the smooth polishing of the hard material coating a decrease in friction is achieved in at least one of the two sliding surface areas and wear is thereby reduced when using the scissors. It would also be conceivable to provide the other sliding surface area with a hard material coating-free surface. It is expedient for both sliding surface areas to have a surface provided with a hard material coating, which is polished smooth. If, for example, the entire scissors are provided with a hard material coating, wear can then be further minimized when both sliding surface areas have a surface of particularly high quality owing to the smooth polishing of the hard material coating. Both friction and wear are thereby avoided and the service life of the scissors increased. In accordance with a further preferred embodiment of the invention, it can be provided that the two scissor blades are held together by a connecting screw having a screw head and defining the pivot axis, that the scissor blade contacting an underside of the screw head forms a contact surface corresponding substantially to the shape and surface of the underside, and that the contact surface has a second hard material coating-free surface or a surface which has a hard material coating and is polished smooth. This design has the advantage that wear of the scissor blade sliding along the underside of the screw head is additionally reduced, with the positive consequence that the initial tension of the scissors is maintained for a longer time. This, in turn, results in prolongation of the service life, so that cost-intensive servicing and regrinding phases are considerably prolonged. It is expedient for at least one of the two cutting edges to be made of a hard metal. Preferably, both cutting edges are made of a hard metal. It is particularly easy for scissor blades with such cutting edges to be provided with a hard material coating by chemical vapor deposition. In addition, they insure a basic hardness of the cutting edges and hence a minimum stability of the scissors. It is advantageous for the hard material coating to be titanium-nitride (TiN), titanium-carbon-nitride (TiCN), titanium-aluminium-nitride (TiAIN) or a diamond-like carbon (DLC) coating. In particular, one sliding surface area and one or even both of the cutting edges can be provided with the hard material coating. It would also be possible to provide both scissor portions completely with a hard material coating, and the same or also a different hard material coating would be conceivable for both scissor portions. The aforementioned examples for hard material coatings do not constitute an exclusive list. In principle, other kinds of hard material coatings are also possible. The aforementioned single or multiple coatings increase the service life many times over in comparison with uncoated scissors and thus increase the thermal and also the chemical stability with hardnesses which clearly exceed those of hardened steel. The friction and hence the wear of parts of the scissors sliding along one another is further reduced when the one first and/or the one second hard material coating-free surface has a high surface quality. In particular, when the aforementioned surfaces are particularly smooth, friction is minimized, irrespective of how the further surface sliding along the hard material coating-free surface is coated. It is advantageous for the one first and/or the one second hard material coating-free surface to be produced by removing a hard material coating and high-gloss polishing the one scissor blade. In particular, in the case of scissor blades completely provided with a hard material coating, a wear-reducing sliding surface area can thus be produced in a simple way. The scissor blade can be completely provided with the hard material coating in a first operation and then worked on at the sliding surface area in a second operation by the hard material coating being removed at this point and the scissor blade being high-gloss polished. It is also conceivable to reduce the friction by the one first and/or the one second hard material coating-free surface being formed by a slide layer applied to the one scissor blade. This has the advantage that a hard material coating need not necessarily be removed, but the slide layer can be applied directly. The slide layer expediently comprises a ceramic material. A ceramic material is particularly wear-resistant and can be applied, for example, in the form of a lamina, in particular, by adhesive bonding to the scissor blade. Insertion of the ceramic material with positive locking in a corresponding recess of the scissor blade would also be conceivable. The slide layer is preferably applied to the scissor blade in the form of a lamina forming the one sliding surface area. This makes it possible to produce the scissor blades in a simple way, and to select the sliding surface area or its surface individually in dependence upon the chosen hard material coating and to apply it to the one scissor blade. In accordance with a preferred embodiment of the invention it can be provided that the slide layer is formed by a slide layer material which is adapted to be welded on and polished after the welding-on and which is polished after the slide layer material has been applied. This has the advantage that the slide layer is joinable even optimally to the scissor blade. In any case, it is made significantly more difficult for the slide layer or its surface to become detached from the scissor blade. In addition, after application of the slide layer, it can, if required, be worked on and given a desired shape. Manufacture of the scissors is further simplified when the slide layer material is steel. Steel can be welded on particularly well. It is advantageous for the first hard material coating-free surface of the one sliding surface area to extend fully or substantially fully over an inner side of the one scissor blade, which includes the sliding surface area with the hard material coating-free surface and points in the direction towards the other scissor blade. This simplifies manufacture of the scissors. For example, the entire inner surface can be covered prior to coating the scissor blade. It would also be conceivable to cover only the sliding surface area prior to application of the hard material coating. Furthermore, this also has the advantage that the cutting edges can in a simple way have different surfaces. In particular, when using the scissors as electrosurgical instrument, a current can then be conducted via one scissor blade, for example, and the two cutting edges can be electrically insulated from each other. The design of the scissors is further simplified when the shape of the sliding surface area with the first hard material coating-free surface is substantially rectangular. In addition, in the case of scissors otherwise completely provided with a hard material coating, the hard material coating-free surface can in this way be minimized, so that the scissor blades are protected particularly well, for example, against aggressive chemicals. It is expedient for the shape of the second hard material coating-free surface to be substantially annular. In this way, only a minimal surface has to be made hard material coating-free. Since, in particular, the part of the screw head lying against the scissor blade is annular, an annular hard material coating-free surface is, therefore, adequate to minimize the wear between the connecting screw and the scissor blade lying against it. The scissors as a whole are optimally protected against outer influences, in particular, against aggressive chemicals, when the entire scissors are provided with the hard material coating except for the sliding surface area having a hard material coating-free surface. In addition, this makes it possible to dye scissor blades made of hard metal in a desired manner. For example, a titanium-nitride coating forms a gold-colored surface, a titanium-carbon-nitride coating a violet/gray surface, a titanium-aluminium-nitride coating a blue/gray surface and a diamond-like carbon coating (DLC) a dark gray surface. Thus, the scissors may, for example, be dyed in accordance with the purpose for which they are to be used, without having to forgo the advantages of a hard material coating. In accordance with a further preferred embodiment of the invention, it can be provided that the one scissor blade is completely or substantially completely provided with the hard material coating, and that the other scissor blade is completely made of a material having a hard material coating-free surface. This design makes it possible to select an optimum material combination for both scissor blades in accordance with the purpose for which the scissors are to be used. Furthermore, only one of the two scissor blades need be coated, which helps to reduce both the manufacturing expenditure and the manufacturing costs. It is expedient for the material from which the other scissor blade is made to be a ceramic material or a high-gloss polished metal with a hard metal insert. In particular, in order to identify the type of scissors and to reduce wear thereof by an operator, it may be advantageous for the connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades to be gold-plated or provided with a titanium-nitride (TiN) coating. The object stated at the outset is accomplished with a method of the kind described at the outset for the manufacture of surgical scissors, in accordance with the invention, by a surface of at least one sliding surface area being manufactured so as to be hard material coating-free. As described above, in this way wear of the sliding surface areas sliding along each other is minimized, whereby the initial tension of the scissor blades movably mounted on each other can be maintained for a particularly long time. Wear can be further minimized by both sliding surface areas being manufactured so as to be hard material coating-free. Thus, two hard material coating-free sliding surface areas can slide along each other when the scissors are opened and closed, which minimizes both friction and wear. Furthermore, it is advantageous when in a method of the kind described at the outset a surface of at least one sliding surface area is provided with a hard material coating, and when this surface is polished smooth after application of the hard material coating. Smooth polishing of the hard material coating results in a high-quality surface, which has a wear- and friction-reducing effect when the sliding surface areas slide along each other. This can also increase the service life of the scissors. It would be conceivable to make the other sliding surface area hard material coating-free. It is also advantageous for surfaces of both sliding surface areas to be provided with a hard material coating and for the surfaces to be polished smooth after application of the hard material coating. In this way, wear of the sliding surface areas is further minimized and, therefore, the service life of the scissors further increased. The method can be further improved in a simple way when the entire scissors or substantially the entire scissors are provided with a hard material coating, and when the hard material coating of the surface of the other sliding surface area is removed by polishing. It is advantageous for the surface of the other sliding surface area to be covered prior to application of the hard material coating to the scissors. In particular, in the case of a hard material coating which is very hard, the removal of the hard material coating after its application by grinding or polishing can involve a great deal of expenditure. Therefore, the covering of the sliding surface area allows only those surface areas of the scissor blade or blades which are to be provided with a hard material coating, for example, by chemical vapor deposition, to be provided with such a coating. It is expedient for the two scissor blades to be held together by a connecting screw comprising a screw head and defining the pivot axis, for the scissor blade contacting an underside of the screw head to form a contact surface corresponding substantially to the shape and surface of the underside, and for the surface of the contact surface to be manufactured so as to be hard material coating-free or to be provided with a hard material coating and subsequently polished smooth. Wear in the area of the pivot axis between the connecting screw and the scissor blade contacting it is thereby minimized, so that the initial tension of the scissors is maintained longer, which results in a significantly prolonged service life of the scissors. In order to give the scissors a uniform appearance and also to protect them as a whole particularly well against outer influences, in particular, aggressive chemicals or the like, it is expedient for the entire scissors or substantially the entire scissors to be provided with a hard material coating, and for the hard material coating of the surface of the contact surface to be removed by polishing. It is particularly simple to manufacture the scissors in this way. It is advantageous for the surface of the contact surface to be covered prior to application of the hard material coating to the scissors. In this way, one method step in the manufacture of the scissors can be dispensed with, namely removal of the hard material coating of the surface of the contact surface by grinding or polishing after application of the hard material coating, for example, by chemical vapor deposition. It is particularly easy and quick for an operator to recognize the type of scissors when the connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. Furthermore, corrosion of the correspondingly coated parts of the scissors, which may occur, in particular, when cleaned or used by an operator, can be prevented. The following description of preferred embodiments of the invention serves in conjunction with the drawings to explain the invention in greater detail DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows surgical scissors generally designated by reference numeral 10 with two scissor halves, namely the upper scissor portion 14 and the lower scissor portion 16, mounted pivotably on each other by means of a connecting screw 12. Scissor blades 18 and 20 of the upper scissor portion 14 and the lower scissor portion 16, respectively, are curved in a direction pointing away from a longitudinal axis 22 of the scissors 10. At the proximal side of the connecting screw 12, which defines a pivot axis 24, elongate shafts 26 and 28 of the upper scissor portion 14 and the lower scissor portion 16, respectively, extend parallel to each other and abuttingly on each other when the scissors 10 are closed. Eye rings 30 and 32, which are gold-plated up to a boundary line 34, adjoin proximal ends of the shafts 26 and 28. The connecting screw 12 is also gold-plated. Apart from the eye rings 30 and 32 and the connecting screw 12, both upper scissor portion 14 and lower scissor portion 16 of the scissors 10 are provided with a hard material coating of titanium-aluminium-nitride. In particular, this serves to reduce wear at cutting edges 36 and 38 of the scissor blades 18 and 20. However, in order to also reduce the wear in the so-called “between” (intermediate portion) 40 of the scissors 10, there is provided at the proximal side of the pivot axis 24 on the upper scissor portion 14 and also on the lower scissor portion 16 a sliding surface area 42 of substantially rectangular shape, which is free of a coating of hard material. Upon opening and closing the scissors 10, upper scissor portion 14 and lower scissor portion 16 contact each other not only at a moving point of contact 44 of the cutting edges 36 and 38 sliding along each other, but also in the between 40, more specifically, in the hard material coating-free sliding surface area 42 of the lower scissor portion 16 and in the hard material coating-free sliding surface area 42 of the upper scissor portion 14, which is not apparent from the drawings. As a result of removing the coating of hard material in the sliding surface area 42 different surfaces slide along one another upon opening and closing the scissors 10. If both sliding surface areas 42 were provided with a hard material coating, these could then mutually act as abrasive surfaces, if affected in some form or other, and additionally cause wear in the between 40, which would cause the initial tension of the scissors 10 to be reduced. If the lower scissor portion 16 is first provided with a hard material coating, the sliding surface area 42 can then be formed by grinding and subsequent high-gloss polishing. A high-quality surface is thus obtained. Alternatively, the sliding surface area 42 can be covered before applying the hard material coating. The coating of hard material may, for example, be produced by chemical vapor-phase deposition. It would also be conceivable to not completely remove the hard material coating on one or both of the sliding surface areas 42, but to only polish smooth the rough surface of the coating. Instead of removing a previously applied hard material coating, the sliding surface area 42 can also be formed by applying a ceramic part or a material applied, for example, by welding. A further area of the scissors 10 that is susceptible to wear is shown in FIG. 3. With its threaded section 50 screwable to the lower scissor portion 16, the connecting screw 12 extends through a bore 48 tapering in a single step in the direction towards the lower scissor portion 16, so that a head 46 of the connecting screw 12 can be countersunk almost completely in the upper scissor portion 14. To minimize friction between the head 46 of the connecting screw 12 and the upper scissor portion 14 upon opening and closing the scissors, a ceramic ring 52 is inserted into the bore 48 tapering in the form of a single step, so that an underside of the head 46 is in contact with the ceramic ring 52, whereby friction is reduced when the scissor blades 18 and 20 are pivoted relative to each other. This reduces the wear and thus maintains the initial tension of the scissors 10. Instead of a ceramic ring 52, a different friction-reducing material in the form of a ring may also be inserted or applied, or a previously applied coating of hard material can be completely removed or polished smooth. A second embodiment of scissors generally designated by reference numeral 10′ is shown in FIG. 4. Parts of the scissors 10′, which are identical or similar to parts of the scissors 10, are given the same reference numerals, but with an additional prime (′). The scissors 10′ differ from the scissors 10 in that an inner side 54′ of the scissor blade 20′ of the lower scissor portion 16′ is completely free of hard material coating. This means that the sliding surface area 42′ is part of the inner side 54′. The inner side 54′ can be formed either by grinding a previously applied hard material coating and by applying a wear-reducing material, for example, in the form of a ceramic lamina, or by applying, in particular by welding, a hard steel which can be machined, in particular, by high-gloss polishing, after being applied. In connection with the description of a third embodiment, reference can again be had to FIG. 1 for an illustration. Differently from the scissors 10, upper scissor portion 14 and lower scissor portion 16 of the third embodiment are, however, made of different materials. For example, the lower scissor portion 16 can be made from a hard steel and provided in its entirety with a hard material coating, whereas the upper scissor portion 14 can be made entirely from a ceramic material or from any chosen material and can have a surface which is completely free of hard material coating. The sliding surface area 42 of the lower scissor portion 16 can be machined, for example, by removing the hard material coating or formed by polishing the coating smooth. All three embodiments of scissors according to the invention described herein have in common that both sliding surface areas 42 have a high-quality smooth surface for the reduction of friction and wear.

Surgical scissors and method for the manufacture of surgical scissors Posted on May 5, 2012 1. Surgical scissors, comprising: two scissor blades, each of which is made entirely of the same steel material, said scissor blades being mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, said scissor blades having proximally of the pivot axis one steel sliding surface area each, said steel sliding surface areas sliding along each other and said scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating, wherein: the two steel sliding surface areas have a first hard material coating-free surface comprising said steel material of said corresponding scissor blade; and the entire scissor blades are provided with the hard material coating except for the steel sliding surface areas having the hard material coating-free surface. 2. Scissors in accordance with claim 1, wherein: the two scissor blades are held together by a connecting screw having a screw head and defining the pivot axis, an area of one of the scissor blades in contact with an underside of the screw head forms a contact surface corresponding substantially to a shape and surface of the underside of the screw head, and the contact surface has a second hard material coating-free surface or a surface which has a hard material coating and is polished smooth. 3. Scissors in accordance with claim 2, wherein at least one of the first and the second hard material coating-free surface has a high surface quality. 4. Scissors in accordance with claim 2, wherein at least one of the first and the second hard material coating-free surface is produced by removing a hard material coating and high-gloss polishing the scissor blades. 5. Scissors in accordance with claim 2, wherein a shape of the second hard material coating-free surface is substantially annular. 6. Scissors in accordance with claim 1, wherein at least one of the two cutting edges is made of a hard metal. 7. Scissors in accordance with claim 1, wherein the hard material coating is titanium-nitride (TiN), titanium-carbon-nitride (TiCN), titanium-aluminium-nitride (TiAlN) or a diamond-like carbon (DLC) coating. 8. Scissors in accordance with claim 1, wherein the first hard material coating-free surface of the sliding surface areas extends fully or substantially fully over an inner side of the scissor blades, each of which includes the sliding surface area with the hard material coating-free surface and points in a direction towards the other scissor blade. 9. Scissors in accordance with claim 1, wherein a shape of the sliding surface areas with the first hard material coating-free surface is substantially rectangular. 10. Scissors in accordance with claim 1, wherein a connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. 11. Method for the manufacture of surgical scissors, comprising: mounting two scissor blades for pivotal movement relative to each other about a pivot axis, each of said scissor blades being made entirely of the same steel material, providing each scissor blade with one cutting edge each, said scissor blades having proximally of the pivot axis one steel sliding surface area each, said steel sliding surface areas sliding along each other and said scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and providing at least one of the cutting edges with a hard material coating, wherein: surfaces of the two steel sliding surface areas are manufactured so as to be hard material coating-free; and the entire scissor blades are provided with the hard material coating except for the steel sliding surface areas having a hard material coating-free surface comprising said steel material of said corresponding scissor blade. 12. Method in accordance with claim 11, wherein: the two scissor blades are held together by a connecting screw comprising a screw head and defining the pivot axis, an area of one of the scissor blades in contact with an underside of the screw head forms a contact surface corresponding substantially to a shape and surface of the underside of the screw head, and the contact surface is manufactured so as to be hard material coating-free or is provided with a hard material coating and subsequently polished smooth. 13. Method in accordance with claim 12, wherein the surface of the contact surface is covered prior to application of the hard material coating to the scissors. 14. Method in accordance with any claim 12, wherein at least one of the connecting screw and eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. BACKGROUND OF THE INVENTION The present invention relates to surgical scissors with two scissor blades mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, the scissor blades having proximally of the pivot axis one sliding surface area each, the sliding surface areas sliding along each other and the scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating. The present invention further relates to a method for the manufacture of surgical scissors with two scissor blades mounted for pivotal movement relative to each other about a pivot axis and having one cutting edge each, the scissor blades having proximally of the pivot axis one sliding surface area each, the sliding surface areas sliding along each other and the scissor blades contacting each other distally of the pivot axis at a moving point of contact of the cutting edges sliding along each other when the scissors are opened and closed, and at least one of the cutting edges being provided with a hard material coating. A hard material coating within the meaning of this application is to be understood as a coating whose hardness is significantly increased in comparison with a base material forming the scissor blades. It is not to be understood as ceramic coating or coating applied by welding. Surgical scissors of the kind described at the outset are used in order to increase a service life of the scissors in comparison with uncoated scissors. This is achieved, in particular, by at least one of the cutting edges being provided with a single-layer or multi-layer hard material coating, applied, for example, by chemical vapor deposition (CVD). In particular, titanium-nitride can be applied in a vacuum chamber by evaporating titanium in a nitrogen plasma. Of course, both cutting edges may also be provided with a hard material coating. Furthermore, it is known that the scissor blades mounted on each other under initial tension contact each other at at least two points or areas when the scissors are opened and closed. These are, firstly, a moving point of contact of the cutting blades sliding along each other and, secondly, a point of contact or a contact surface of the sliding surface areas of the two scissor blades that slide along each other. The initial tension between the scissor blades required for the cutting can only be maintained on a long-term basis if not only wear at the cutting edges is minimized but also wear at the sliding surface areas that slide along each other. The object of the present invention is, therefore, to so improve surgical scissors of the kind described at the outset that their service life is further increased. SUMMARY OF THE INVENTION This object is accomplished with surgical scissors of the kind described at the outset, in accordance with the invention, in that at least one of the two sliding surface areas has a first hard material coating-free surface. Owing to this special type of coating, in particular, in the case of scissors provided completely with a hard material coating, the applied particles of the coating, when attacked, for example, by chemicals, are prevented from mutually acting as abrasive agents owing to their extreme inherent hardness and the sliding surface areas of both scissor blades from becoming worn down as a result. As a negative consequence of the wear the initial tension of the scissors decreases in an undesired manner in the course of time. The wear in the area of the cutting edges is indeed reduced, in particular, by applying a hard material coating to both cutting edges and both sliding surface areas, but it is increased at the sliding surface areas. The present invention remedies this by the two sliding surface areas that slide along each other having different surfaces. Owing to the one sliding surface area having a surface provided with a hard material coating, and the other sliding surface area having a first hard material coating-free surface, the two sliding surface areas can no longer affect each other mutually, whereby wear of the sliding surface areas is minimized. As a positive consequence of this, the initial tension of the scissors is maintained for a longer time than with known scissors, so that all in all the service life of the scissors is increased. The service life of the scissors may be further increased by both sliding surface areas having a hard material coating-free surface. It can thus be avoided that in the most unfavorable case a surface with a hard material coating and a surface without a hard material coating, which do not have good sliding properties, will encounter each other. Furthermore, in the case of scissors of the kind described at the outset, it may be advantageous for at least one of the two sliding surface areas to have a surface provided with a hard material coating, which is polished smooth. Such a design makes it possible for the entire scissors, i. e., all its surfaces, to be provided with a hard material coating. An increased service life is achieved in that owing to the smooth polishing of the hard material coating a decrease in friction is achieved in at least one of the two sliding surface areas and wear is thereby reduced when using the scissors. It would also be conceivable to provide the other sliding surface area with a hard material coating-free surface. It is expedient for both sliding surface areas to have a surface provided with a hard material coating, which is polished smooth. If, for example, the entire scissors are provided with a hard material coating, wear can then be further minimized when both sliding surface areas have a surface of particularly high quality owing to the smooth polishing of the hard material coating. Both friction and wear are thereby avoided and the service life of the scissors increased. In accordance with a further preferred embodiment of the invention, it can be provided that the two scissor blades are held together by a connecting screw having a screw head and defining the pivot axis, that the scissor blade contacting an underside of the screw head forms a contact surface corresponding substantially to the shape and surface of the underside, and that the contact surface has a second hard material coating-free surface or a surface which has a hard material coating and is polished smooth. This design has the advantage that wear of the scissor blade sliding along the underside of the screw head is additionally reduced, with the positive consequence that the initial tension of the scissors is maintained for a longer time. This, in turn, results in prolongation of the service life, so that cost-intensive servicing and regrinding phases are considerably prolonged. It is expedient for at least one of the two cutting edges to be made of a hard metal. Preferably, both cutting edges are made of a hard metal. It is particularly easy for scissor blades with such cutting edges to be provided with a hard material coating by chemical vapor deposition. In addition, they insure a basic hardness of the cutting edges and hence a minimum stability of the scissors. It is advantageous for the hard material coating to be titanium-nitride (TiN), titanium-carbon-nitride (TiCN), titanium-aluminium-nitride (TiAIN) or a diamond-like carbon (DLC) coating. In particular, one sliding surface area and one or even both of the cutting edges can be provided with the hard material coating. It would also be possible to provide both scissor portions completely with a hard material coating, and the same or also a different hard material coating would be conceivable for both scissor portions. The aforementioned examples for hard material coatings do not constitute an exclusive list. In principle, other kinds of hard material coatings are also possible. The aforementioned single or multiple coatings increase the service life many times over in comparison with uncoated scissors and thus increase the thermal and also the chemical stability with hardnesses which clearly exceed those of hardened steel. The friction and hence the wear of parts of the scissors sliding along one another is further reduced when the one first and/or the one second hard material coating-free surface has a high surface quality. In particular, when the aforementioned surfaces are particularly smooth, friction is minimized, irrespective of how the further surface sliding along the hard material coating-free surface is coated. It is advantageous for the one first and/or the one second hard material coating-free surface to be produced by removing a hard material coating and high-gloss polishing the one scissor blade. In particular, in the case of scissor blades completely provided with a hard material coating, a wear-reducing sliding surface area can thus be produced in a simple way. The scissor blade can be completely provided with the hard material coating in a first operation and then worked on at the sliding surface area in a second operation by the hard material coating being removed at this point and the scissor blade being high-gloss polished. It is also conceivable to reduce the friction by the one first and/or the one second hard material coating-free surface being formed by a slide layer applied to the one scissor blade. This has the advantage that a hard material coating need not necessarily be removed, but the slide layer can be applied directly. The slide layer expediently comprises a ceramic material. A ceramic material is particularly wear-resistant and can be applied, for example, in the form of a lamina, in particular, by adhesive bonding to the scissor blade. Insertion of the ceramic material with positive locking in a corresponding recess of the scissor blade would also be conceivable. The slide layer is preferably applied to the scissor blade in the form of a lamina forming the one sliding surface area. This makes it possible to produce the scissor blades in a simple way, and to select the sliding surface area or its surface individually in dependence upon the chosen hard material coating and to apply it to the one scissor blade. In accordance with a preferred embodiment of the invention it can be provided that the slide layer is formed by a slide layer material which is adapted to be welded on and polished after the welding-on and which is polished after the slide layer material has been applied. This has the advantage that the slide layer is joinable even optimally to the scissor blade. In any case, it is made significantly more difficult for the slide layer or its surface to become detached from the scissor blade. In addition, after application of the slide layer, it can, if required, be worked on and given a desired shape. Manufacture of the scissors is further simplified when the slide layer material is steel. Steel can be welded on particularly well. It is advantageous for the first hard material coating-free surface of the one sliding surface area to extend fully or substantially fully over an inner side of the one scissor blade, which includes the sliding surface area with the hard material coating-free surface and points in the direction towards the other scissor blade. This simplifies manufacture of the scissors. For example, the entire inner surface can be covered prior to coating the scissor blade. It would also be conceivable to cover only the sliding surface area prior to application of the hard material coating. Furthermore, this also has the advantage that the cutting edges can in a simple way have different surfaces. In particular, when using the scissors as electrosurgical instrument, a current can then be conducted via one scissor blade, for example, and the two cutting edges can be electrically insulated from each other. The design of the scissors is further simplified when the shape of the sliding surface area with the first hard material coating-free surface is substantially rectangular. In addition, in the case of scissors otherwise completely provided with a hard material coating, the hard material coating-free surface can in this way be minimized, so that the scissor blades are protected particularly well, for example, against aggressive chemicals. It is expedient for the shape of the second hard material coating-free surface to be substantially annular. In this way, only a minimal surface has to be made hard material coating-free. Since, in particular, the part of the screw head lying against the scissor blade is annular, an annular hard material coating-free surface is, therefore, adequate to minimize the wear between the connecting screw and the scissor blade lying against it. The scissors as a whole are optimally protected against outer influences, in particular, against aggressive chemicals, when the entire scissors are provided with the hard material coating except for the sliding surface area having a hard material coating-free surface. In addition, this makes it possible to dye scissor blades made of hard metal in a desired manner. For example, a titanium-nitride coating forms a gold-colored surface, a titanium-carbon-nitride coating a violet/gray surface, a titanium-aluminium-nitride coating a blue/gray surface and a diamond-like carbon coating (DLC) a dark gray surface. Thus, the scissors may, for example, be dyed in accordance with the purpose for which they are to be used, without having to forgo the advantages of a hard material coating. In accordance with a further preferred embodiment of the invention, it can be provided that the one scissor blade is completely or substantially completely provided with the hard material coating, and that the other scissor blade is completely made of a material having a hard material coating-free surface. This design makes it possible to select an optimum material combination for both scissor blades in accordance with the purpose for which the scissors are to be used. Furthermore, only one of the two scissor blades need be coated, which helps to reduce both the manufacturing expenditure and the manufacturing costs. It is expedient for the material from which the other scissor blade is made to be a ceramic material or a high-gloss polished metal with a hard metal insert. In particular, in order to identify the type of scissors and to reduce wear thereof by an operator, it may be advantageous for the connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades to be gold-plated or provided with a titanium-nitride (TiN) coating. The object stated at the outset is accomplished with a method of the kind described at the outset for the manufacture of surgical scissors, in accordance with the invention, by a surface of at least one sliding surface area being manufactured so as to be hard material coating-free. As described above, in this way wear of the sliding surface areas sliding along each other is minimized, whereby the initial tension of the scissor blades movably mounted on each other can be maintained for a particularly long time. Wear can be further minimized by both sliding surface areas being manufactured so as to be hard material coating-free. Thus, two hard material coating-free sliding surface areas can slide along each other when the scissors are opened and closed, which minimizes both friction and wear. Furthermore, it is advantageous when in a method of the kind described at the outset a surface of at least one sliding surface area is provided with a hard material coating, and when this surface is polished smooth after application of the hard material coating. Smooth polishing of the hard material coating results in a high-quality surface, which has a wear- and friction-reducing effect when the sliding surface areas slide along each other. This can also increase the service life of the scissors. It would be conceivable to make the other sliding surface area hard material coating-free. It is also advantageous for surfaces of both sliding surface areas to be provided with a hard material coating and for the surfaces to be polished smooth after application of the hard material coating. In this way, wear of the sliding surface areas is further minimized and, therefore, the service life of the scissors further increased. The method can be further improved in a simple way when the entire scissors or substantially the entire scissors are provided with a hard material coating, and when the hard material coating of the surface of the other sliding surface area is removed by polishing. It is advantageous for the surface of the other sliding surface area to be covered prior to application of the hard material coating to the scissors. In particular, in the case of a hard material coating which is very hard, the removal of the hard material coating after its application by grinding or polishing can involve a great deal of expenditure. Therefore, the covering of the sliding surface area allows only those surface areas of the scissor blade or blades which are to be provided with a hard material coating, for example, by chemical vapor deposition, to be provided with such a coating. It is expedient for the two scissor blades to be held together by a connecting screw comprising a screw head and defining the pivot axis, for the scissor blade contacting an underside of the screw head to form a contact surface corresponding substantially to the shape and surface of the underside, and for the surface of the contact surface to be manufactured so as to be hard material coating-free or to be provided with a hard material coating and subsequently polished smooth. Wear in the area of the pivot axis between the connecting screw and the scissor blade contacting it is thereby minimized, so that the initial tension of the scissors is maintained longer, which results in a significantly prolonged service life of the scissors. In order to give the scissors a uniform appearance and also to protect them as a whole particularly well against outer influences, in particular, aggressive chemicals or the like, it is expedient for the entire scissors or substantially the entire scissors to be provided with a hard material coating, and for the hard material coating of the surface of the contact surface to be removed by polishing. It is particularly simple to manufacture the scissors in this way. It is advantageous for the surface of the contact surface to be covered prior to application of the hard material coating to the scissors. In this way, one method step in the manufacture of the scissors can be dispensed with, namely removal of the hard material coating of the surface of the contact surface by grinding or polishing after application of the hard material coating, for example, by chemical vapor deposition. It is particularly easy and quick for an operator to recognize the type of scissors when the connecting screw and/or eye rings of the scissors arranged at proximal ends of the scissor blades are gold-plated or provided with a titanium-nitride (TiN) coating. Furthermore, corrosion of the correspondingly coated parts of the scissors, which may occur, in particular, when cleaned or used by an operator, can be prevented. The following description of preferred embodiments of the invention serves in conjunction with the drawings to explain the invention in greater detail DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows surgical scissors generally designated by reference numeral 10 with two scissor halves, namely the upper scissor portion 14 and the lower scissor portion 16, mounted pivotably on each other by means of a connecting screw 12. Scissor blades 18 and 20 of the upper scissor portion 14 and the lower scissor portion 16, respectively, are curved in a direction pointing away from a longitudinal axis 22 of the scissors 10. At the proximal side of the connecting screw 12, which defines a pivot axis 24, elongate shafts 26 and 28 of the upper scissor portion 14 and the lower scissor portion 16, respectively, extend parallel to each other and abuttingly on each other when the scissors 10 are closed. Eye rings 30 and 32, which are gold-plated up to a boundary line 34, adjoin proximal ends of the shafts 26 and 28. The connecting screw 12 is also gold-plated. Apart from the eye rings 30 and 32 and the connecting screw 12, both upper scissor portion 14 and lower scissor portion 16 of the scissors 10 are provided with a hard material coating of titanium-aluminium-nitride. In particular, this serves to reduce wear at cutting edges 36 and 38 of the scissor blades 18 and 20. However, in order to also reduce the wear in the so-called “between” (intermediate portion) 40 of the scissors 10, there is provided at the proximal side of the pivot axis 24 on the upper scissor portion 14 and also on the lower scissor portion 16 a sliding surface area 42 of substantially rectangular shape, which is free of a coating of hard material. Upon opening and closing the scissors 10, upper scissor portion 14 and lower scissor portion 16 contact each other not only at a moving point of contact 44 of the cutting edges 36 and 38 sliding along each other, but also in the between 40, more specifically, in the hard material coating-free sliding surface area 42 of the lower scissor portion 16 and in the hard material coating-free sliding surface area 42 of the upper scissor portion 14, which is not apparent from the drawings. As a result of removing the coating of hard material in the sliding surface area 42 different surfaces slide along one another upon opening and closing the scissors 10. If both sliding surface areas 42 were provided with a hard material coating, these could then mutually act as abrasive surfaces, if affected in some form or other, and additionally cause wear in the between 40, which would cause the initial tension of the scissors 10 to be reduced. If the lower scissor portion 16 is first provided with a hard material coating, the sliding surface area 42 can then be formed by grinding and subsequent high-gloss polishing. A high-quality surface is thus obtained. Alternatively, the sliding surface area 42 can be covered before applying the hard material coating. The coating of hard material may, for example, be produced by chemical vapor-phase deposition. It would also be conceivable to not completely remove the hard material coating on one or both of the sliding surface areas 42, but to only polish smooth the rough surface of the coating. Instead of removing a previously applied hard material coating, the sliding surface area 42 can also be formed by applying a ceramic part or a material applied, for example, by welding. A further area of the scissors 10 that is susceptible to wear is shown in FIG. 3. With its threaded section 50 screwable to the lower scissor portion 16, the connecting screw 12 extends through a bore 48 tapering in a single step in the direction towards the lower scissor portion 16, so that a head 46 of the connecting screw 12 can be countersunk almost completely in the upper scissor portion 14. To minimize friction between the head 46 of the connecting screw 12 and the upper scissor portion 14 upon opening and closing the scissors, a ceramic ring 52 is inserted into the bore 48 tapering in the form of a single step, so that an underside of the head 46 is in contact with the ceramic ring 52, whereby friction is reduced when the scissor blades 18 and 20 are pivoted relative to each other. This reduces the wear and thus maintains the initial tension of the scissors 10. Instead of a ceramic ring 52, a different friction-reducing material in the form of a ring may also be inserted or applied, or a previously applied coating of hard material can be completely removed or polished smooth. A second embodiment of scissors generally designated by reference numeral 10′ is shown in FIG. 4. Parts of the scissors 10′, which are identical or similar to parts of the scissors 10, are given the same reference numerals, but with an additional prime (′). The scissors 10′ differ from the scissors 10 in that an inner side 54′ of the scissor blade 20′ of the lower scissor portion 16′ is completely free of hard material coating. This means that the sliding surface area 42′ is part of the inner side 54′. The inner side 54′ can be formed either by grinding a previously applied hard material coating and by applying a wear-reducing material, for example, in the form of a ceramic lamina, or by applying, in particular by welding, a hard steel which can be machined, in particular, by high-gloss polishing, after being applied. In connection with the description of a third embodiment, reference can again be had to FIG. 1 for an illustration. Differently from the scissors 10, upper scissor portion 14 and lower scissor portion 16 of the third embodiment are, however, made of different materials. For example, the lower scissor portion 16 can be made from a hard steel and provided in its entirety with a hard material coating, whereas the upper scissor portion 14 can be made entirely from a ceramic material or from any chosen material and can have a surface which is completely free of hard material coating. The sliding surface area 42 of the lower scissor portion 16 can be machined, for example, by removing the hard material coating or formed by polishing the coating smooth. All three embodiments of scissors according to the invention described herein have in common that both sliding surface areas 42 have a high-quality smooth surface for the reduction of friction and wear.