CQS—01与EMS超声系统碎石清石效果的实验研究  

In vitro comparison of two types of introcorporeal ultrasound lithotripsy device （CQS-01 and EMS）

作　　者：王晓峰[1] 熊六林[1] 黄晓波[1] 于晋生[1] 费兴波 姜克明[1] 李春升[1] 

机构地区：[1]北京大学人民医院泌尿外科,100034 [2]北京汇福康医疗技术有限公司

出　　处：《中华泌尿外科杂志》2012年第12期903-905,共3页Chinese Journal of Urology

摘　　要：目的比较CQS-01和EMS—III、EMS—IV超声碎石清石系统碎石清石效果。方法自制标准石膏柱（直径20mm，高10mm，维氏硬度368mPa）作为结石模型，共20枚，随机分为4组，每组5枚。将结石模型平放于60ml一次性注射器内，并浸没于水中，分别采用CQS-01、EMS-III、EMS—IV（A）超声碎石清石系统在相同条件下（70％功率、70％占空比、负压0．02mPa）和EMS—IV（B）超声碎石清石系统（70％功率、100％占空比、负压0．02mPa）将结石破碎并清除，记录结石击穿时间、碎石清石时间，并测量碎石颗粒大小。结果CQS-01、EMS—III、EMS—IV（A）和EMS—IV（B）的结石击穿时间分别为（7．4±1．9）s、（9．4±1．6）s、（82．2±12．6）S和（51．4±18．7）S，CQS—01、EMS．III两组比较差异无统计学意义（P〉0．05），CQS-01与EMS—IV（A和B）比较差异有统计学意义（P〈0．001）；4组碎石清石时间分别为（387．8±68．0）S、（411．6±57．6）S、（568．0±119．1）s和（383．6±75．6）S，组间差异无统计学意义（P〉0．05）；4组碎石颗粒最大直径均〈3mm。结论CQS-01体外碎石清石效果与EMS—III和EMS—IV系统相似。Objective To assess the efficacy of stone fragmentation and clearance of this new intra- corporeal ultrasound lithotripter （CQS-01） compared with currently available ultrasound units （EMS-III/ IV）. Methods Twenty phantom stones composed of dental gypsum were randomly divided into four groups, and CQS-Ol ultrasound lithotripter （70% power and 70% duty factor） , EMS-III ultrasound litho- tripter （70% power and 70% duty factor） , EMS-IV ultrasound lithotripter （type A, 70% power and 70% duty factor） and EMS-IV ultrasound lithotripter （type B, 70% power and 100% duty factor） were used to fragment and remove phantom stones. The mean stone breakdown time and fragment removal time and stone fragmental sizes for the standard ultrasound devices were compared to determine the completeness and effi- ciency of stone fragmentation and removal. Results The average time for stone breakdown was 7.4± 1.9 s, 9.4 ± 1.6 s, 82.2 ± 12.6 s and 51.4 ± 18.7 s, respectively. There was no significant difference between CQS-O1 and EMS-III （ P 〉 0.05）, but there was significant difference between CQS-01 and EMS-IV （ A or B） （P 〈0. 001 ）. The average time for stone clearance using the ultrasound devices was 387.8± 68.0 s, 411.6 ± 57.6 s, 568.0± 119, 1 s and 383.6 ± 75.6 s, respectively. In addition, the average size of the lar- gest fragments removed was the same among the groups （ 〈 3 mm）. Conclusion The ultrasound capabili- ties in a newly developed lithotriter （CQS-01） exhibited the same ability to fragment and clear phantom stones compared with standard ultrasound devices.

关 键 词：肾结石 经皮肾镜 超声碎石 

分 类 号：R699.2[医药卫生—泌尿科学]