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美国伊利诺斯州的医学研究者不用外科手术,第一次成功地取出了病人的肾结石。术者将带光探头通过尿道、膀胱插入肾脏约20英寸,找到结石,然后穿入小型结石粉碎器到结石部位,对结石进引电击,将其击成泥沙样碎石,与尿液一起排出。导光纤维探头直径为十分之一英寸,装有数千根比头发还细的导光纤维。光从一头被导入,反射并无衰减地传到另一头。部分导光纤维能在另一头产生一微小光点,其余导光纤维连接显微镜,使医生能观察光点照明的图象。结石粉碎器是一电液压探头,原用于在水泥上钻孔。其工作原理是在液体中产生一很强的电火花以在探头顶部激发小能量冲击波,冲
For the first time, medical scientists in Illinois, the United States, successfully removed the patient’s kidney stones without surgery. The surgeon will probe with light through the urethra, the bladder into the kidneys about 20 inches to find stones, and then into the small stone crusher to the stone site, the stones into the electric shock, hit it into a sand-like gravel, together with the urine discharge. Light guide fiber probe diameter of one tenth of an inch, with thousands of thinner than the hair of the light guide fiber. Light is introduced from one end, reflected and transmitted without attenuation to the other end. Some of the light guide fiber can produce a tiny light spot on the other end, and the rest of the light guide fiber is connected to the microscope so that the doctor can observe the spot lighting image. Stone crusher is an electro-hydraulic probe, used to drill holes in cement. Its working principle is in the liquid to produce a strong spark to stimulate small energy in the top of the probe shock wave