| 摘要 |
PROBLEM TO BE SOLVED: To prevent the peeling of a hydrogel layer at the time of internal indwelling by fixing a hydrogel to the surface of a tubular synthetic resin base material. SOLUTION: For example, the base material of the prescribed body fluid discharge tube is molded by extrusion molding of a polyvinyl chloride resin. Heparin prepd. by bonding poly(N-vinyl pyrrolidone) bonded with a photofunctional azide group and photofunctional azide group is dissolved in a soln. mixture composed of ethanol and pure water. This soln. is applied on the body fluid discharge tube base material and after the coating is dried, the coating is photoirradiated with a high pressure mercury lamp. The coating is then ultrasonically washed with a neutral detergent, by which the body fluid discharge tube is formed. The extraction resistance of the body fluid discharge tube from a swine meat is extremely little and the extraction resistance may be lowered. |
