A Developmental Study of Waterjet Angioplasty System.

本报告描述了使用水射流代替激光的经皮腔内血管成形术系统的开发研究。该系统由柱塞泵和导管组成。导管耐压，远端头端有喷嘴。实验采用家兔靶病变主动脉，通过血液凝固法制备血栓。手术过程在视频显示器中使用细纤维内窥镜进行监控。水射流首先在血栓表面形成一个细孔，然后穿透整个血栓。然后冲洗掉碎片并清除周围的其他船只。本实验表明，水射流血管成形术比激光方法具有许多优点。

This report described a developmental study of the percutaneous transluminal angioplasty system using the waterjet instead of the laser. The system consisted of planger pump and a catheter. Catheter is pressure durable and has the nozzle at the distal tip. Experiment was carried out with the aorta of rabbit Target lesion as the thrombus was made by blood coagulation. Operative procedure was monitored in the video display using the fine fiberscope. Waterjet make a fine hole on the thrombus surface at first and penetrated through the whole thrombus. Then washed out the debris and remove others of the surroundings vessels. This experiment showed that waterjet angioplasty have many advantages over the laser method.