PROBLEM TO BE SOLVED: To provide a member for medical appliance or a medical appliance that is made of a biocompatible material which does not exhibit hemolytic toxicity, is excellent in heat resistance of the member, and is used in a form of directly contacting blood or living cells.SOLUTION: Provided is a member for a medical appliance or a medical appliance comprising a biocompatible material composed of a fluorine-containing cyclic olefin polymer containing a structural unit represented by the formula (1). (R1 to R4 each independently represent F, a C1 to 10 alkyl group containing F, a C1 to 10 alkoxy group containing F or a C2 to 10 alkoxy-alkyl group containing F R1 to R4 may combine with each other to form a ring structure.).SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】溶血毒性を示さない生体適合性材料からなり、部材の耐熱性に優れ、直接血液または生体細胞を接触させる形態で使用される医療器具用部材又は医療器具を提供。【解決手段】式(1)で表される構造単位を含有するフッ素含有環状オレフィンポリマーにより構成される生体適合性材料からなる医療器具用部材又は医療器具。(R1~R4は各々独立にF、Fを含有するC1~10のアルキル基、Fを含有するC1~10のアルコキシ基又はFを含有するC2~10のアルコキシアルキル基;R1~R4は互いに結合して環構造を形成していてもよい。)【選択図】なし
