LOW FRICTION BACTERICIDAL SILVER COATED CATHETERS

目前生产的导管表面粘稠，这使得 插入困难，并可能导致许多并发症。这一阶段 我的研究项目将开发一种银涂层，它可以沉积在 将粘稠的表面转化为光滑、低摩擦的导管 一。研究的重点将放在血管成形术上。 (PTCA)导管。涂层将由离子束辅助进行涂覆 沉积(IBAD)过程。除了降低摩擦力， 涂层还将显著提高材料的抗拉强度 导尿管和杀菌剂。在第一阶段的研究中， 涂料将应用于聚氨基甲酸酯优惠券。涂布工艺将 通过评估样本进行优化。测试将包括粘附性， 厚度和抗拉强度测试以及光学下的检查 和电子显微镜。在涂布工艺已经被优化之后， 将对PTCA导管进行治疗，并测量摩擦力的减少。

Catheters which are currently produced have a tacky surface which makes insertion difficult and can result in a number of complications. The Phase I research project will develop a silver coating which can be deposited on the catheter to transform the tacky surface into a lubricous, low friction one. The particular emphasis during the research will be on angioplasty (PTCA) catheters. The coating will be applied by the ion beam assisted deposition (IBAD) process. In addition to lowering the friction, the coating will also significantly increase the tensile strength of the catheter and act as a bactericidal agent. During the Phase I research, coatings will be applied to polyurethane coupons. The coating process will be optimized by evaluating the samples. Tests will include adhesion, thickness, and tensile strength tests along with examination under optical and electron microscopy. After the coating process has been optimized, PTCA catheters will be treated and the reduction in friction measured.