BIO-COMPATIBLE MATERIAL, MANUFACTURE THEREOF, AND MEDICAL INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a polymeric material of polyolefine for medical use which has a surface excellent in blood coagulation resistance or in thrombosis resis tance. SOLUTION: At least one kind of polymer of 100 parts by weight having a repeating unit that is derived from at least one kind of monomer selected from a group consisting of an olefine monomer of carbon number 2 to 10 and a diene monomer of carbon number 4 to 15, and a polymer material making a principal component of a nucleus making agent 0.003 to 0.5 parts by weight are meltedly molded, so that a biocompatible material having a surface region of a micro-phase separation structure consisting of a crystalline region and a noncrystalline region on its surface can be obtained. The medical instrument such as a blood circulating circuit, blood bag, and catheter manufactured from this bio-compatible material can effectively prevent the coagulation of blood.