Kuwahara M, Kambe K, Taguchi K, Saito T, Shirai S, Orikasa S
Department of Urology, Tohoku University School of Medicine, Sendai, Japan.
J Lithotr Stone Dis. 1991 Apr;3(2):141-6.
Initial clinical trials using a new overhead piezoelectric extracorporeal lithotripter is presented. The advantages of this machine are the installation of an anti-misshot control device (AMCD) to prevent misshots to renal tissue, simplicity for ultrasound stone localization by the overhead type applicator, and elimination of necessity for anesthesia. Thirty patients with upper urinary tract calculi were treated by this machine with a success rate of 77% and stone destruction rate of 93%. No serious complication was observed. The AMCD functioned in such a manner that shock waves were generated only when the stone was in the focal region. Although there were AMCD nonfunctioning cases (small and deeply located stones), it is indicated that this machine is favorable for safe, extracorporeal lithotripsy.
介绍了使用新型头顶式压电体外冲击波碎石机的初步临床试验。该机器的优点包括安装了防误击控制装置（AMCD）以防止误击肾脏组织、头顶式探头在超声结石定位方面简便易行以及无需麻醉。30例上尿路结石患者接受了该机器治疗，成功率为77%，结石粉碎率为93%。未观察到严重并发症。AMCD的工作方式是仅当结石位于聚焦区域时才产生冲击波。尽管存在AMCD不起作用的情况（结石小且位置深），但表明该机器有利于安全的体外碎石。
