Hand surgery is a major therapeutic operation and the most important reconstruction function in all operations. In order to obtain ideal results, it is necessary to improve surgical techniques to reduce tissue damage. Noninvasive technology to achieve this goal. Every specific surgical operation should minimize unnecessary trauma, not only every movement should be a meaningful struggle, but also protect the tissue during the operation to minimize the trauma caused by the operation. If there are too many wounds, the vitality of the tissue will definitely decrease, which will affect the repair and healing of the tissue. In severe cases, it will cause scar adhesion, contracture, affect function and even infection, leading to the failure of the operation. Non-invasive technology should include the following elements:

(1) Cutting and stripping with a sharp knife

The operation of cutting and stripping all tissues requires both sharp knives and blunt dissection. Especially for cutting nerves, blood vessels and tendons, we should choose a new sharp blade.

(2) to prevent the organization of tweezers.

During the operation, try not to clamp tweezers, clamp tweezers or clamp any normal tissues during the operation. The tweezers just started to be taken out and snapped, retaining the auxiliary function. When necessary, take it with tweezers, take the light-pointed consultation with tweezers, and behead the adventitia nerve, tendon and subcutaneous tissue. It is forbidden to use hemostatic forceps to clamp any normal tissue.

(c) Run tangent smoothly.

During the operation, try to avoid tissue breaking, squeezing, clamping and reverse tearing. For all soft tissue operations, it is necessary to care for exposed normal tissues such as tendons, nerves and blood vessels to keep them moist, especially to protect tendon tissues.

(d) sophisticated surgical instruments

Hand surgery should choose fine surgical instruments by hand, and try not to use other surgical instruments. The needle should be sharp, not too thick thread.

(5) Narrowing the gap between hematocele tissues.

For hand surgery under tourniquet, when the skin is sutured after tissue repair, the tourniquet should be loosened, the bleeding should be stopped first, and the bleeding wound should be continuously compressed with gauze for 5- 10 minutes or longer. When blood can't be wound to sew the skin. The tourniquet is not allowed to be stitched under the skin and placed under the skin. If necessary, it should be drained by rubber to prevent subcutaneous bleeding.