Pettersson S, Jonsson O, Sivertsson R, Säve-Söderbergh J, Zachrisson B E
Scand J Urol Nephrol. 1977;11(1):35-40. doi: 10.3109/00365597709179689.
In a recent in vitro study, mechanical vibration was shown to facilitate, considerably, both the passing of a basket catheter beyond an artificial ureteral stone as well as the extraction of a calculus. Therefore, a device by which vibration can be transmitted to the basket of a modified stone extractor was developed for clinical application. The basket moves to and fro with an amplitude of 2-4 mm and a frequency of 40-60 Hz. An experimental follow-up study was performed in dogs to find out whether the vibration procedure as such induced injuries to the ureters. Modified stone extractors were passed up bilaterally into the ureters of 11 dogs. Vibration was applied in a standardized manner to one side, the other non-vibrated side served as a control. Postoperatively, 5 dogs were followed during 4-5 weeks with repeated urographies. Specimens of the ureters were examined microscopically when the dogs were sacrificed. No complications which could be ascribed to the vibration procedure as such were observed. The vibration technique was tried also in a pilot study comprising 14 patients with distal ureteral stones; in 9 patients, the stones were successfully extracted. Of the remaining 5 patients in whom the stone extraction failed, 3 passed the stone spontaneously and in 2 ureterolithotomies were performed. No complications were encountered.
在最近的一项体外研究中，机械振动被证明能显著促进篮状导管穿过人工输尿管结石以及结石的取出。因此，开发了一种能将振动传递到改良结石取出器篮状部分的装置用于临床应用。篮状部分以2 - 4毫米的振幅和40 - 60赫兹的频率来回移动。在犬类身上进行了一项实验性随访研究，以确定这种振动操作本身是否会对输尿管造成损伤。将改良结石取出器双侧插入11只犬的输尿管。以标准化方式对一侧施加振动，另一侧不振动作为对照。术后，对5只犬进行了4 - 5周的随访，并反复进行尿路造影。在处死犬时，对输尿管标本进行显微镜检查。未观察到可归因于这种振动操作的并发症。在一项包含14例输尿管下段结石患者的初步研究中也尝试了这种振动技术；9例患者的结石成功取出。其余5例结石取出失败的患者中，3例结石自行排出，2例行输尿管切开取石术。未出现并发症。
