| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thin shaped graft for stent without fear of deviating from a inserted position after inserting into a duct such as a blood vessel, by making a graft for stent from a tube made of thermoplastic resin fiber with wall thickness within a specific range and different end outer diameters. SOLUTION: This graft with stent used in intravascular operation and as a substitute of other hollow organs is made of a tube of thermoplastic resin fiber with wall thickness not thicker than 50 μm and different end outer diameters. The cloth used is preferably plain weave and the tube 1 is preferably a tube which has the ratio of one end part outer diameter A to the other end part outer diameter B so that A/B is not higher than 0.98 exceeding 0.50. Further a tube with tensile strength of 7.5 kg/30 kg is preferably used. The graft for stent and the thermoplastic resin fiber are coated by a nonthrombogenic material, for instance, heparin, collagen, acetylsalicylic acid, gelatin, etc., at need. |
