After introducing the development of laser, what are the main applications of laser? There are four major aspects: laser treatment, laser skin changing, laser beauty, laser cutting, etc.
The use of laser treatment of facial capillary hemangioma, pigmented nevus and so on. The principle is that different colored tissues have different laser absorption rates at different wavelengths. When these specific wavelengths of laser are used to irradiate the diseased parts, these pigments or hemoglobin are most severely damaged by the laser, while the surrounding normal tissues are slightly damaged. When the damaged diseased tissues are gradually absorbed by the body, the disease or the pigments in the skin can be cured.
As the laser still causes slight damage to normal tissues, the amount of laser irradiation for each treatment should not be too large, so as to avoid excessive damage and scar formation. It is appropriate to use the method of graded treatment from shallow to deep.
After treatment, the damaged pigment is gradually absorbed. Therefore, it is not urgent to use laser to treat skin pigmented diseases. There is no effect in a short time after treatment.
Laser skin changing
Laser skin changing uses laser grinding technology. Its principle is to change the focusing characteristics of the laser to make the laser spot become a spot, and then use the pattern generator to scan the spot according to a certain pattern, so that the high heat generated by the laser spot in an instant can remove the target tissue within the scanning range.
The intensity and density of each spot, the shape and size of the scanning image are controlled by the computer, so as to accurately control the depth of removing the target tissue and achieve the purpose of treatment. Laser skin changing not only overcomes the shortcomings of traditional methods, such as easy bleeding and difficult depth control, but also stimulates the skin elastic fibers and makes them shrink.
The contraction of elastic fibers can tighten the skin, further promote the disappearance of superficial wrinkles, and the wrinkle removal effect is more obvious. Avoid light before and after laser skin replacement, take vitamin drugs appropriately, and use drugs or change drugs on the face after laser skin replacement to prevent infection. Skin pigmentation, which occasionally occurs during skin replacement, is common among the yellow people.
In a statement on the “ideal future medical model”, the United Nations stressed that improving the quality of life in both physical and mental aspects is the direction of human efforts in the 21st century. Laser has been used in the treatment of skin diseases since the 1960s. In recent years, with the emergence of lasers with different wavelengths, high-energy ultra pulse CO2 lasers, variable pulse lasers and erbium lasers.
High tech laser cosmetology is increasingly coming into our life. Laser cosmetology – cosmetology without wound has set off another climax in the field of medical cosmetology. Laser can produce high-energy, focused and accurate monochromatic light, which has certain penetration, and can produce high heat locally when acting on human tissues.