By the fact that coating it does the fluorine high-molecular thin film of PTFE and the like, coefficient of friction of the backing material is decreased on the backing material, improvement of slide characteristic of the backing material is assured. It improves the adhesion of the backing material and the fluorine thin film, slides and the medical instrument tool where characteristic is superior, for example offer of the guide wire for catheter introduction. At least on the backing material of part, the hydrophilic high-molecular thin film and the medical instrument tool which possesses the fluorine high-molecular thin film of its higher stratum of society.基材上にPTFEなどのフッ素系高分子薄膜をコーティングすることで、基材の摩擦係数を低減し、基材の滑り性の改善を図る。基材とフッ素系薄膜の密着性を向上させ、滑り性の優れた医療用器具、例えばカテーテル導入のためのガイドワイヤーの提供。少なくとも一部の基材上に、親水性高分子薄膜およびその上層のフッ素系高分子薄膜を有する医療用器具。
