Instruments and scalpels in surgery Let’s take scissors as an example. The size of scissors for ophthalmic surgery and abdominal surgery is very different, because ophthalmic surgery is relatively superficial and the running distance of the scissors is relatively short, but fine dissection of tissues requires the scissors to be very precise, so ophthalmic scissors are more delicate and compact. In abdominal surgery, because the operating distance is often very long, the handles of abdominal surgery scissors are relatively long. Open rectal cancer surgery sometimes requires longer scissors to obtain the tissue that needs to be dissected (of course, many of them are now laparoscopic or ultrasonic). , but the operating handle is also very long). Some chest scissors can even cut ribs, and this kind is longer and thicker. Vascular surgery or microsurgery has special scissors to meet the needs of fine trimming of surgical tissues such as blood vessels. Of course, such scissors are also very expensive. There are also some specialties, such as biliary tract surgery scissors, which have special or customized versions with golden handles. These scissors cost at least more than 10,000 pairs. They are all bought by professors of the specialty for their own use, and others do not. Let me use it, I want it too, but unfortunately I don’t have the money to buy it. The same goes for scalpels. Different types of blades are used for different tissues, including straight, curved, hooked, etc. ?