最近,美国已研制出实用型的超声手术刀。美国的外科医生用这种超声手术刀成功的切除了恶性肝瘤,从而使危险性高、成功率低的肝癌肿瘤切除术变得安全可靠,成功率也大为提高。在此以前,肝癌肿瘤切除手术中常会损伤肝区附近的血管和胆小管,结果 Recently, the United States has developed a practical type of ultrasonic scalpel. Surgeons in the United States have succeeded in removing the malignant hepatoma with this ultrasonic scalpel so that the high risk and low success rate of liver cancer resection can be safely and reliably achieved, and the success rate has also been greatly improved. Prior to this, tumor resection in liver cancer often damage the vicinity of the blood vessels and the ductus, the results