Study of Improving Waterway System of Extracorporeal Shock Wave Lithotripsy / 医疗卫生装备

ABSTRACT

Objective To increase stone-breaking efficiency by improving waterway system of extracorporeal shock wave lithotripsy. Methods A water-storing bag, which possessed warm-up function and was filled with anticorrosive and antirust no-air water, and a sealed water tank were added to water-entering pipeline of shock wave generator. Water pressure pressing water-storing bag was utilized to control no-air water to be filled into shock wave generator to minimize bubble forming in shock wave outer conduct passway. Meanwhile, a temporary water-storing tank and a single-directed valve were added between pipelines and water-storing bag. Results After improving, lithotripsy could recycle no-air water to be filled into shock wave generator. It not only increased shock wave conducting and stone breaking efficiency, but also decreasee air content in shock wave generator and outer conduct passway, and decreased bubble forming, thus reducing complication in more rational procedures. Conclusion The method of improving waterway system of extracorporeal shock wave lithotripsy is simple, cheap, effective and worth popularizing.