Longitudinal Mechanical Properties of Small-Diameter Polyurethane Vascular Graft Reinforced by Tubular Knitted Fabric  

作　　者：周飞 徐卫林 欧阳晨曦 刘秀英 许海叶 姚穆 

机构地区：[1]Textile Research Center, Wuhan University of Science and Engineering, Wuhan 4,30073, China [2]Department of Vascular Surgery, Union Hospital of Hubei Province, Wuhan 430022, China [3]Xi＇an Polytechnic University, Xi＇an 710048, China

出　　处：《Journal of Donghua University(English Edition)》2008年第5期522-526,共5页东华大学学报（英文版）

基　　金：Supported by Education Depart ment of Hubei Province,China (No. Z200717001)

摘　　要：The vascular graft with 4 mm diameter was prepared by casting one layer of polyurethane (PU) film onto the knitting tubular fabric as the reinforced support. The effects of different PU content and wall thickness on the longitudinal mechanical properties of vascular graft were investigated. The breaking elongation, breaking force, initial modulus and breaking work were studied. The results showed that the longitudinal mechanical properties of vascular graft were enhanced as the content of polyurethane increased, which resulted from the combination of PU excellent elasticity and fabric preferable strength.The vascular graft with 4 mm diameter was prepared by casting one layer of polyurethane （PU） film onto the knitting tubular fabric as the reinforced support. The effects of different PU content and wall thickness on the longitudinal mechanical properties of vascular graft were investigated. The breaking elongation, breaking force, initial modulus and breaking work were studied. The results showed that the longitudinal mechanical properties of vascular graft were enhanced as the content of polyurethane increased, which resulted from the combination of PU excellent elasticity and fabric preferable strength.

关 键 词：tubular fabric POLYURETHANE vascular graft mechanical property 

分 类 号：R322.1[医药卫生—人体解剖和组织胚胎学]