PROBLEM TO BE SOLVED: To provide a medical device including a thin metallic film component attached to a polymeric component, and a method.SOLUTION: A medical device includes a medical device thin metallic film component (such as a thin metallic film angioplasty balloon 310), with perforations 340 therethrough, a medical device polymeric component (e.g., a polymeric tubular catheter 320) abutting the thin metallic film component, and a polymeric sleeve 330 covering the perforations and at least a portion of the polymeric component abutting the thin metallic film component. Moreover, the polymeric sleeve intrudes into the perforations and joins the thin metallic film component to the polymeric component.【課題】ポリマー部材に取り付けられる金属薄膜部材を有する医療装置および方法を提供する。【解決手段】穿孔340が貫通している医療装置用金属薄膜部材(金属薄膜血管形成バルーン310など)、この金属薄膜部材に当接している医療装置用ポリマー部材(ポリマー管状カテーテル320など)、穿孔および金属薄膜部材に当接しているポリマー部材の少なくとも一部を覆うポリマースリーブ330を有し、ポリマースリーブは、穿孔内に侵入し、金属薄膜部材をポリマー部材に接合する。【選択図】図3B