Ultraviolet protection has received comprehensive attention, sunburn, skin tanning and skin photo-aging has become a hot research topic, a new scientific field is being formed, the concept of "light cosmetic medicine" called for.
The development of laser cosmetic equipment has gone through three stages:
Basic research stage (1960s): the first meaningful laser was introduced into the clinic by Maiman in 1960, which includes a ruby and can emit laser light at a wavelength of 694 nm. 1961, the ruby laser was used to weld the peeled retina; In 1963, Goldman L began to apply the ruby laser to the treatment of benign skin damage and tattoos with success. 1965 Goldman reported the use of the ruby laser to effectively remove tattoos without scarring after the treatment was very easy; and then applied the ND:YAG laser to eliminate tattoos and treat superficial vascular malformations. 1968 Shanghai developed the Nd:YAG laser.
Clinical use stage (1970s): 1970 Goldman L et al. for the first time with continuous CO2 laser treatment of basal cell carcinoma and skin hemangiomas, due to the continuous provision of effective laser power and energy density, to overcome the shortcomings of the early low-pulse laser power, low efficiency, which set off the first domestic and foreign laser to the medical craze.
Development and maturity stage (1990s): in the early 1990s, the application of Q-switched laser treatment of pigmented diseases such as nevus of Ota, tattoos and so on has achieved near-perfect therapeutic effect; in the mid-90s, the late variable pulse width 532nm laser treatment of vascular diseases has also achieved better results. At this time, the United States, Israel, Germany and other countries advanced sets of laser cosmetology instrument was rapidly introduced into the country, and tends to popularize, some domestic laser cosmetology instrument in the country has also been more and more applications and gradually replace the leading position of foreign products.