In vitro lithotripsy experiment of a newly calculi anchoring forceps
10.3760/cma.j.issn.1000-6702.2013.04.012
- VernacularTitle:自制激光碎石固定钳碎石效果的体外研究
- Author:
Haitao WEN
;
Telei CHEN
- Publication Type:Journal Article
- Keywords:
Kidney calculi;
Urinary bladder calculi;
Randomized controlled trial
- From:
Chinese Journal of Urology
2013;(4):276-279
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the lithotripsy efficiency of a newly calculi anchoring forceps in vitro.Methods Compared the efficiency with or without calculi anchoring forceps in the circumstances imitate percutaneous nephrolithotomy.There are 24 calculus for each group in random selection.The lithotripsy was completed by one people.the time,energy and retained calculus were compared by T-test.Results When the energy expenditure reaches 2 kJ,the operating time was (4.7 ± 0.9) min in group 1 and (4.2 ± 0.9) min in group 2 (P ＞ 0.05).The removal calculus showed no differences between the two groups (P ＞ 0.05).After the energy used over 2 k J,the operating time of the remained calculus were (4.5 ± 1.2) min in group 1 and (9.2 ± 2.6) min in group 2 respectively (P ＜ 0.05),and the energy consumed (1.7 ± 0.5) kJ and (2.6 ± 0.4) kJ respectively (P ＜ 0.05).Total energy consumed in group 1 and group2 was (3.7±0.5) kJ and (4.6±0.5) kJ (P＜0.05).And the cumulate time used was (9.2±1.7) min and (13.4 ±2.7) min in group 1 and group 2 respectively (P ＜0.05).Conclusions The calculi anchoring forceps can improve the efficiency of lithotripsy in vitro.The improvement was significant for the calculus whose diameter was smaller than lcm.
