| 摘要 |
PURPOSE:To give an antithrombus character, and in the same time, enable to make the bore of an artificial blood vessel fine by coating at least the surface in contact with blood of a porous base material with a fluororesin to form an artificial patch material. CONSTITUTION:A fluororesin film is formed by the conventional method of dipping, spraying, coating, etc., with emulsion or organic solvent solution of fluororesin on at least the surface, in contact with blood of a base material, having porosity of a porous polyester or a porous polyurethane and the like. An artificial patch material is obtained by drying a pipe-shaped structure, in which the fluororesin film is formed, for about 1 to 30min at about 60 to 190 deg.C temperature. Further, concurrent use of a cross-linking agent or the like for firmly providing binding force between fluororesin and the base material and for improving durability is also effective for the emulsion or organic solvent solution of the fluororesin. |
