激光有四个基本特性:方向好、中性好、高强度和相干性好,激光有五个生物效应:热效应、光化效应、压强效应、电磁场效应、生物刺激效应,因为激光有上述优点,所以激光手术出血少或不出血,手术时间短,精确度高,操作方便,感染机会甚少.我科主要使用广州激光技术研究所生产的901C二氧化碳激光机进行激光美容治疗,根据1995年～1998年本科总结出激光各类治疗的统计数字,摘录色素痣部分与同行探讨.色素痣是黑素细胞系统的良性肿瘤之一,由黑素性痣细胞组成,根据初生时是否存在分为先天性及获得性色素痣两大类.获得住的又分为交界痣、复合痣、皮内痣、晕痣、蓝痣等4年间,到我科激光除痣有4338人次;复发音217例,需做3次者43例,一名眼外角蓝痣患者激光治疗8次才将黑色素完全切除干净,但没有遗留疤痕,效果理想,要达到很好的治疗效果,与仪器及操作者的技术关系甚大.作者总结出如下体会,仅供业内同行探讨,①操作方法要正确、操作人员要接受严格的专业培训才能上机操作.②如色病黑素细胞深达真皮层,气化治疗时只能气化达真皮浅层,少量多次做,不要留疤痕,如将整个真皮深层一次气化切除,愈合后则留有永久性凹陷疤痕.③根据色痣大小深浅,在操作过程中不断调整输出功率及激光枪高低;伤口平整不要留有沟脊或凹凸 The laser has four basic characteristics: good direction, good neutrality, high intensity and good coherence. The laser has five biological effects: thermal effect, photochemical effect, pressure effect, electromagnetic field effect, and biological stimulating effect, because the laser has the above advantages, Therefore, laser surgery with little or no bleeding, short operation time, high precision, easy operation, very little chance of infection. Our department mainly uses the 901C CO2 laser machine manufactured by Guangzhou Laser Technology Institute for laser cosmetic treatment, according to 1995 ~ 1998 The year undergraduate summed up the statistics of various types of laser treatment, excerpts of the pigmented part were discussed with colleagues. The pigmented nevus is one of the benign tumors of the melanocyte system and consists of melanotic nevus cells. It is divided into congenital and Acquired pigment nevus two major categories. Acquired is divided into border nevus, compound nevus, intradermal nevus, syncope, blue nevus, etc. 4 years, to our department laser neovascularization has 4338 person times; complex pronunciation 217 cases, need to do In 43 cases of 3 times, an out-of-eye angle blue eyelid patient was treated with laser for 8 times before completely removing the melanin, but no scar was left, and the effect was satisfactory. It was necessary to achieve a very good therapeutic effect with the instrument and the operator. The relationship between the surgery is very large. The author summarizes the following experience, only for industry peers to discuss, 1 operation method should be correct, operators must undergo rigorous professional training in order to operate on the machine. 2 such as colorectal melanocytes deep in the dermis, gasification treatment Can only gasify up to the superficial layer of the dermis, do it in small amounts multiple times, do not leave scars, such as the entire dermis deep gasification once removed, leaving a permanent depression after healing scars. 3 according to the size of the color palate, during operation Constantly adjust the output power and laser gun level; wounds do not leave grooves or bumps