使用带有狭窄和没有狭窄的尿管模型对经过翻新的双J支架进行评估
Young-Ho Choi1, Hyo Jeong Kang2, Kyung-Wuk Kim3
1Department of Radiology, College of Medicine, Seoul Nat'l Univ, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
World journal of urology
|April 10, 2024
概括
与传统的DJS相比,经过翻新的双J支架 (DJS) 在没有尿管狭窄的模型中显示出改善的尿流. 然而,在狭窄的模型中没有观察到显著的流量差异.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 生物医学工程 生物医学工程
- 医疗器械设计 医疗器械设计
背景情况:
- 传统的双J支架 (DJS) 具有标准化的设计.
- 尿道疾病需要不同的支架配置.
- 当前的DJS设计可能无法最佳地解决各种尿路病理.
研究的目的:
- 为了评估更新的DJS设计的有效性.
- 为了比较翻新和传统的DJS之间的尿液流量.
- 为了评估尿管模型的性能,有或没有狭窄.
主要方法:
- 尿道模型被创建与和没有远端狭窄.
- 测试了传统的DJS和经过翻新的软 (5-6 Fr) 和硬 (6-8.5 Fr) DJS.
- 在经过翻新的DJS设计中,孔位和密度有所变化.
- 测量尿液流量,并对跨支架类型和模型条件进行比较.
主要成果:
- 增加的DJS直径与流量减少相关.
- 经过翻新,顶部/中部轴孔的DJS在非石柱模型中显示出比传统的DJS更高的流量.
- 在狭窄性尿管模型中,在更新的DJS中没有观察到显著的流速改善.
- 在DJS中较低的轴孔放置导致相对较低的流速.
结论:
- 与传统的DJS相比,经过翻新的DJS在尿管狭窄的情况下没有显示出优异的尿流.
- 经过翻新的DJS的设计修改显示了在非静脉状条件下潜在的好处.
- 可能需要进一步的研究来优化DJS设计用于狭窄的尿路环境.
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