PROBLEM TO BE SOLVED: To provide a treatment instrument which introduces a guide wire into a pericardium cavity while preventing the distal end of a needle from making contact with a heart.SOLUTION: The treatment instrument includes: a channel section 30 from which the needle 31 inserted between a living tissue A and a membranous tissue B formed on a surface of the living tissue A a first holding section 11 and a second holding section 21 which are arranged side by side in a direction of an axis of the channel section 30 and hold the membranous tissue B to be in close contact with the first holding section and the second holding section and a connecting member 40 which moves a first holding member 10 and a second holding member 20 relative to each other so that the first holding section 11 and the second holding section 21 are arranged to sandwich the axial line of the channel section 30.COPYRIGHT: (C)2012,JPO&INPIT【課題】針の先端が心臓に接触することを防止しながらガイドワイヤを心膜腔内に導入することができる処置具を提供する。【解決手段】生体組織Aと生体組織Aの表面に形成された膜状組織Bとの間に挿入される針31を導出するチャネル部30と、チャネル部30の軸線方向に並んで配置され、膜状組織Bを密着させて保持する第1の保持部11および第2の保持部21と、第1の保持部11と第2の保持部21とがチャネル部30の軸線を挟んで配置されるように、第1の保持部材10と第2の保持部材20とを相対移動させる接続部材40とを備える処置具を採用する。【選択図】図5
