外科器械及使用方法大全（Surgical instruments and methods of use）.doc

外科器械及使用方法大全（Surgical instruments and methods of use） Purpose and requirements: 1.. Understand the commonly used surgical instruments. 2. master the proper use of common surgical instruments. 3. master the structural features and basic performance of surgical instruments. Equipment: knives, scissors, forceps, surgical forceps, needle forceps, suture needle and hook, etc.. Hand wooden instruments are essential for surgical procedures. Correct grasp of the structural characteristics and basic performance of various surgical instruments, and skilled use of the basic requirements for the implementation of surgical operations. According to the lever principle, general surgical instruments can be divided into two categories, one is with the coupling device, in the tail force coupling of intersection, tip to form coupling ring to form a handle arm, arm, when forming clamping force. Such as forceps, needle forceps and scissors; the other is the point of force in the instrument, pivot at the end, the working point in the front, such as knives, forceps etc.. I. Blade Surugcal (Scalpcl) The scalpel is made up of two parts, the hilt and the removable blade. The handle is usually divided according to its length and size, and several different types of blades can be fitted with one handle. The handle is generally stored and sterilized separately from the blade. There are many kinds of blades, and they can be divided into round knives, machetes and triangular knives according to their shapes. They can be divided into big blades, middle blades and small knives according to their size (Figure 4 - 1). When the blade is loaded, the front end of the blade is clamped by a needle holder, so that the notch of the blade is aligned with the knife edge at the front of the handle, and can be loaded by pulling back slightly. After use, hold the back of the end of the blade with a needle holder, and pull the blade slightly. The blade can be pushed forward and removed. There are other types of kn