PROBLEM TO BE SOLVED: To provide a treatment member for treating living body, a treatment instrument and a manufacturing method of the treatment member for treating living body capable of reliably connecting members constituting the treatment instrument, and suppressing deterioration of slidability to a sheath.SOLUTION: A treatment member for treating living body comprises: a first member made of a superelastic alloy and having a functional part for treating a living body and a base part connected to one end of the functional part a second member formed by using a different material from the first member and having a diameter which can butt at least a diameter of an outer periphery of the side connected with the base part a cover member, which forms a sleeve shape having the substantially same inner diameter as the diameter of the outer periphery of the connection portion of the first and second members, for covering the connection part and a fixing member for covering the cover member and fixing a position of the cover member to the connection part.COPYRIGHT: (C)2015,JPO&INPIT【課題】処置具を構成する部材同士を確実に連結するとともに、シースに対する摺動性の低下を抑制することができる生体処理用の処置部材、処置具および生体処理用の処置部材の製造方法を提供すること。【解決手段】生体を処置するための機能部、および機能部の一端に連なる基部を有する超弾性合金からなる第1部材と、第1部材と異なる材料を用いて形成され、少なくとも基部と連結する側の外周の径が基部と突合せ可能な径を有する第2部材と、第1および第2部材の連結部分の外周の径と略同一の内径を有するスリーブ状をなし、該連結部分を被覆する被覆部材と、被覆部材を覆って連結部分に対する被覆部材の位置を固定する固定部材と、を備えた。【選択図】図5
