In the ensuing decade, the emergence of a number of different medical fields of laser wavelength. These lasers in the treatment of pigment disorders (eg, Ota, birthmarks, freckles, melasma, age spots) and vascular diseases (such as port wine stains, hemangiomas, telangiectasia) and have achieved good results. The use of selective photothermolysis laser action principle treatment of skin diseases on the target tissue can be highly localized damage, but little damage to surrounding tissue. In order to achieve selective photothermolysis, it is essential to adopt an appropriate wavelength, pulse width and energy density of different tissues absorb different wavelengths of the laser, we usually want most of the laser photon energy can be absorbed by the target tissue, and absorbed by the surrounding tissue the less. Many torch-like
is of IIIB level.Nd: YAG fluorescence spectrum of the major three, the center wavelength of 1064 nm laser oscillation most likely to form, the strongest fluorescence lines, accounting for 60% of the entire energy spectrum, which can penetrate the skin deep, dark pigment was cell height of absorption, more effective way to remove dark color or inflamed tissue. According to the role of selective photothermolysis theory, can be used to treat deep skin pigmentation disorders, today's medical Nd: YAG laser output wavelength is 1064 nm and more. Facial pigmented lesions traditional treatment methods are cryotherapy, dermabrasion, chemical peels and carbon dioxide laser treatment, etc., are now gradually being replaced by solid-state laser treatment. Therefore,
of high power are not toys.1064 nm Nd: YAG Q-switched laser treatment of facial pigmented lesions should be based on the nature of disease, with the site of the lesion, the patient's age and gender and other factors determine the treatment parameters and reasonable, and timely adjustment of the treatment process, to identify specific The best parameters of the standard treatment, lesions selectively absorb the laser energy are duly crushed, and gradually remove their phagocytic cells, ultimately eliminate the lesion does not leave scars purposes. 1064 nm wavelength of the laser penetration depth, the skin can be absorbed deep selection of melanoma cells, treatment of nevus of Ota thermal damage to surrounding tissue when it is small. Q-switched pulse is to use its shock wave pigment cells will be crushed, and then by phagocytes to engulf the pigment particles, and does not leave scars of pigment loss, high selectivity, high efficiency, safe, reliable, easy operation advantages.
of high power is not suitable for children.Common foreign body reaction caused by the tattoo, tattoo pigment residues in the local fluid, redness, infiltration, scaling, itching. In the past by local injection or topical corticosteroids can only relieve symptoms, can not remove disease, local inflammation will relapse. Using 1064 nm laser treatment, the tattoo pigment particles in the liquid selective absorption of laser energy after being crushed, it will be swallowed by the reticuloendothelial system, excretion, and thus eliminate the cause. In addition, because the instrument used Q-switch technology, the light energy in the 5 to 10 seconds, release, short duration, small thermal damage to surrounding tissue, to avoid scarring, atrophy or striae change phenomena, and no hypopigmentation or hyperpigmentation . 1064 nm generated by frequency doubling crystal 532 nm laser output, the brown, red skin lesions and pigment effective absorption of pigment granules in the skin after laser rupture, and cell frame was intact, the skin can be quickly recovered. The green laser pointer should be added with warning labels.The wavelength of the laser for the treatment of freckles, side effects, easy to operate, no scars, and postoperative care requirements low. 1064 nm Nd: YAG laser ablation of the artificial lens membrane is safe and effective in patients with no discomfort, no anesthesia, reducing the risk of surgery, have an alternative to traditional surgery iris, become the preferred treatment for glaucoma. High-temperature laser surgery, have a good bactericidal effect, after few infections; laser treatment safe and virtually no complications, shorter operative time, bleeding effect, wound healing; high energy laser beam can reach the ordinary scalpel can not enter the site, and precise location, you can do micro-surgery, reducing tissue damage outside of the lesion. 1064 nm Nd: YAG Q-switched laser for the treatment of larynx and hypopharynx can hemangioma, after cataract, periodontal disease and other diseases. The unique properties of Nd: YAG laser will become increasingly widely used in the medical field.
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