动物实验表明激光能液化血管内的血栓和动脉硬化。作者对15例股动脉、腘动脉狭窄或闭塞实行胶囊导管扩张病人应用氩激光。病人均采用同侧股动脉顺行穿刺。对狭窄病人首先用导丝通过狭窄,经导丝置入7F导管使顶端达狭窄处但不通过狭窄。对闭塞病人有必要用导丝和导管预扩病变,注入肝素5000μ,妥拉苏林10mg。经导管置入激光纤维使其超出导管顶端2mm。该纤维事先已连接到—Y型连接器上,此时将连接器和导管近端相接。最初4例使用400μ直径纤维,其后11例使用2000μ者,发射能为2～8W,发射时间5～10秒。发射期间 Animal experiments show that laser can liquefy blood clots and arteriosclerosis. The authors applied argon laser to 15 patients with femoral artery, popliteal artery stenosis or occlusion undergoing capsule catheter dilatation. Patients were ipsilateral femoral artery paracentesis. For patients with stenosis, a guide wire is used to pass through the stenosis. A 7F catheter is inserted through the guidewire to achieve a stenosis at the top but not through the stenosis. It is necessary for the occluded patient to pre-dilate the lesion with a guidewire and a catheter, inject heparin 5000μ, and dose Laurulin 10mg. Transcatheter laser fibers placed 2mm above the catheter tip. The fiber was previously connected to the -Y type connector, at which point the connector was mated with the proximal end of the catheter. The first 4 cases used 400μ diameter fibers, followed by 11 cases using 2000μ, the launch energy of 2 ~ 8W, firing time of 5 to 10 seconds. During launch