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采用金属编织物增强的复合中空纤维管,具有良好的抗挤压、抗塌陷、推送性能和扭控性能,被应用于微创伤介入医疗导管中。重点研究了金属网结构的引入对中空纤维的扭控性的影响,探索了金属丝的强度、形状、编织层数以及编织密度与增强中空纤维扭控性能的关系,为介入医疗器械产品开发提供技术指导。在此基础上建立了金属网增强的复合中空纤维生产设备,研发了一系列金属网增强中空纤维导管产品,已成功应用于微创伤介入医疗器械中。
The composite hollow fiber reinforced by metal braid has good anti-extrusion, anti-collapse, pushing performance and twist control performance and is applied to the minimally invasive medical catheter. This paper focuses on the influence of metal mesh structure on the twist control of hollow fiber, and explores the relationship between the strength, shape, braid number and braided density of the metal filament and the twist control performance of the hollow fiber, which provides a basis for the development of interventional medical device product Technical support. On the basis of this, a metal mesh-reinforced composite hollow fiber production facility was established and a series of metal mesh reinforced hollow fiber catheter products were developed. These products have been successfully used in medical devices with minimal trauma.