The scalpel used by surgeons in hospitals is divided into blade and handle. The blade is disposable, but the handle is not. Other instruments are not disposable, but they must be autoclaved every time they are used. The so-called sterilization means killing all microorganisms. So as long as it is strictly disinfected, you don't have to worry about this problem. The scalpel used by surgeons in hospitals is divided into blade and handle. The blade is disposable, but the handle is not. Other instruments are not disposable, but they must be autoclaved every time they are used. Learning the use of scalpel is a compulsory course for surgeons.

Matching size of surgical blade and surgical handle

1. Bow holding: the most commonly used way to hold a knife, with a wide and flexible range of motion, involving the whole upper limb, mainly in the wrist. Used for skin long incision and rectus abdominis anterior sheath incision.

2. Pen grip type: gentle force, flexible and accurate operation, easy to control the action of the knife, and its action and strength mainly lie in the fingers. Used for short incision and fine surgery, such as dissecting blood vessels and nerves, cutting peritoneum, etc.

3. Grip: Hold the handle with both hands, and squeeze the notch of the handle with thumb and forefinger. This method is relatively stable in controlling tools. The main activity point of the operation is the shoulder joint. It is used for cutting wide range, thick tissue and strong incision, such as amputation, tendon incision and long skin incision.

4. Anti-pick: It is a conversion form of holding a pen, and the blade is picked up to avoid damaging deep tissues. When operating, puncture first and move your fingers. It is used to cut abscess, blood vessel, trachea, common bile duct or ureter and other hollow organs, cut off clamped tissue or enlarge skin incision.

5. Finger pressing type: the force is heavy, the forefinger presses the front end of the handle, and the second half is hidden in the hand. This method is a bit inflexible in controlling tools. Mainly suitable for skin tissue that is difficult to cut.