2, liquid nitrogen freezing method to remove tattoos: using liquid nitrogen freezing method to make superficial skin tissue necrosis and fall off, thus removing tattoo tissue.
3. Excision, suture and skin grafting to remove tattoos: For deep tattoo patterns (reaching deep dermis or even subcutaneous tissue), the above methods are difficult to work, and surgery can be considered to remove the full-thickness skin of the affected area. If the wound is narrow, it can be sutured directly. Due to certain nervousness, obvious scars were left after operation; If the wound is difficult to suture, thin skin (cross-sectional skin grafting) should be taken from other parts of the body, such as the thigh. The disadvantage is that the color and texture of the skin graft area are poor after operation.
4. Dermatopoeia removal: It is a mechanical method to remove the surface layer of the skin to achieve the purpose of removing its internal pigments.
5, chemical corrosion method to remove tattoos: generally diluted weak acid solution is used to cause superficial burns on the skin, so that the pigment falls off with the necrotic tissue.
6. Laser tattoo removal: The laser is applied to the affected area, and the pigment particles are crushed into tiny particles under the premise of not causing skin burns, and are gradually discharged from the urinary system through blood circulation. This method does not destroy skin living tissue, leaving no scar after operation, and the effect is good. It is the best choice to treat tattoos at present. But it's expensive. Injection cosmetic surgery is as scientific and learned as other cosmetic methods. Doctors need to have a good understanding of the materials and drugs, injection routes, injection techniques, human aesthetics, local anatomy and general condition of injection cosmetic surgery. Injection cosmetic surgery must be carried out by trained doctors in regular medical units.
As an ideal injection molding material, the following conditions must be met first:
1 has good histocompatibility;
② No allergic reaction and pyrogen;
3 no carcinogenicity, no teratogenicity;
4. Non-microbial substrate;
5. It has a certain binding ability with the host tissue;
6 does not cause inflammation or foreign body reaction;
7. No antigenicity, no immune and tissue-related diseases;
8 convenient for disinfection and storage;
9. Have appropriate liquidity;
10 is easy to shape, shape and fix after being put into the host, and the effect is lasting or permanent. There are four methods of peeling: sandpaper peeling, ordinary brush peeling, silicon carbide peeling and stainless steel olive peeling.
1 Sandpaper rubbing method: roll the sterilized sandpaper on an empty needle cylinder or on a gauze ring and rub it by hand. This method is simple and feasible, but it has the following disadvantages: it is easy to leave sand grains on skin wounds for several years, and foreign body granuloma may occur. Friction around the nose, mouth and eyes is inconvenient and difficult to work. Time-consuming and labor-intensive.
2 line brush friction method: this method takes the motor as the power to drive it to rotate. Its disadvantage is that it is difficult to use because epithelium and other tissues adhere to it for cleaning and disinfection.
3 silicon carbide grinding head method: grinding with this grinding head is superior to the above two methods, but its disadvantage is that it costs a lot of money, such as grinding smallpox scars. The whole operation requires multiple grinding heads to be replaced back and forth from the handle, which is easy to pollute the sterile area and leave silicon particles on the wound surface.
Stainless steel olive grinding head method: this grinding head overcomes the above shortcomings, and it is easy to grind, flexible and light, and safe to use. No matter what angle is adopted, it is a spherical surface with deep contact with the skin, which is easy to control, scrub and disinfect, durable and easy to master.