点触式超声探针对硬结石碎石效率的影响

Influence of Point-Touch Ultrasonic Probe on the Lithotripsy Efficiency of Tough Calculus

目的探讨改造后的点触式超声探针对硬结石碎石效率的影响。方法在原超声探针的前端打磨3个缺口,形成3个点状凸起,称为点触式超声探针。分别应用点触式超声探针与原超声探针对硬结石进行体外碎石,测定并比较二者的碎石速度。结果点触式超声探针的平均体外碎石速度是原超声探针的2.33倍,二者比较差异有统计学意义(P<0.05)。结论点触式超声探针可击碎硬结石,且碎石速度快、效率高,可为临床微创超声碎石提供参考。

Objective To explore the influence of the reconstructive point-touch ultrasonic probe on the lithotripsy efficiency of tough calculus. Methods 3 gaps were grinded on the front end of the common ultrasonic probe to form 3 teeny bumps. Thus a new probe which was called point-touch ultrasonic probe was reconstructed. The vitro lithotripsy of tough calculus was conducted with the point-touch ultrasonic probe and the common ultrasonic probe, respectively. Then the lithotripsy efficiencies of the two probes were measured and compared. Results The average lithotripsy efficiency of the point-touch ultrasonic probe was 2.33 times as high as that of the common ultrasonic probe. There were significant differences between the two probes in lithotripsy efficiency（P〈0.05）. Conclusion The point-touch ultrasonic probe which can break the tough calculus with fast speed and high efficiency will provide reference information for clinical minimal invasive ultrasonic lithotripsy.