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尿道支架:你的眼睛看不到的东西! 一个体外试验研究研究

Stessy Kutchukian¹, Marie Chicaud², Mariela Corrales³

¹GRC n(o) 20, groupe de recherche clinique sur la lithiase urinaire, hôpital Tenon, Sorbonne université, 75020 Paris, France; Service d'urologie, hôpital Tenon, Assistance publique-Hôpitaux de Paris, Sorbonne université, 4, rue de la Chine, 75020 Paris, France; PIMM, UMR 8006 CNRS-Arts et métiers ParisTech, 151, boulevard de l'Hôpital, 75013 Paris, France; Service d'urologie, CHU de Poitiers, Poitiers, France.

The French journal of urology

|May 17, 2024

概括

所有尿道支架 (STENTS) 在使用前都会出现表面缺陷,无论材料或设计如何. 这些不规则可能会导致支架和并发症.

科学领域:

泌尿器科泌尿器科泌尿器科泌尿器科
生物材料科学生物材料科学
医疗设备工程医疗设备工程

背景情况:

尿道支架 (STENTS) 对于尿道排水至关重要.
支架的表面特性可以影响临床结果,包括和感染.
使用前表面表征对于了解支架性能至关重要.

研究的目的:

进行各种未使用的尿路支架模型表面的体外表征和比较.
识别和量化不同支架类型和组件的表面缺陷.

主要方法:

在体外分析6个未使用的尿路支架模型 (聚氨和).
高分辨率扫描电子显微镜 (HR-SEM) 用于检查四个支架部分:表面核心,侧孔,尿道环和黑色标记表面.
分析重点是识别大于10μm的缺陷,每种支架模型有三个样本.

主要成果:

所有分析的尿道支架 (STENTS) 都显示了表面缺陷,无论其组成或形状如何.
缺陷主要在支架环和侧孔上发现.
标记表面在一些模型中显示出缺陷,其中一个模型表现出优越的光滑性.
在所有STENTS的横截面区域中也发现了不规则.

结论:

在临床使用之前,没有尿路支架 (STENT) 是完全光滑的.
预先存在的表面不完美可能在支架层中起作用,可能与感染和尿液成分相关.
制造工艺和材料特性都可能影响尿路支架的外表面光滑度.

关键词:

计算的年收入.电子显微镜电子显微镜层化层化层化内分泌学是一种内分泌学.内分泌学在内分泌学.甲化甲化甲化结石结石是指结石的出现.电子显微镜电子显微镜尿道支架尿道支架尿道支架尿道支架尿道支架

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