利用石英光纤作为激光手术器械的传导装置,已广泛的应用临床。其特点是轻巧,损耗小,导光准确,操作灵活。但在采用其作为传导大功率的激光束时,由于手术部位的汽化物质对光纤输出端部的污染,而常常造成能量的聚集,发热而损坏光纤,并且功率密度也较低,直接影响到激光的临床应用。因此对光纤输出端部输出的激光束进行聚集,而形成较小的光 The use of quartz fiber as a conducting device for laser surgical instruments has been widely used clinically. Its features are light weight, low loss, accurate light guide, and flexible operation. However, when it is used as a laser beam for conducting high power, the vaporization of the material at the surgical site contaminates the output end of the optical fiber, which often causes the accumulation of energy, heat and damage the optical fiber, and the power density is also low, directly affecting the laser. The clinical application. Therefore, the laser beam output from the output end of the optical fiber is condensed to form a smaller light