PROBLEM TO BE SOLVED: To prevent a defect such as damage to a peripheral tissue in a living body from occurring, to easily puncture a target narrow portion in a membranous tissue such as an atrial septum, and its tip is opposite to the membranous tissue. Provided is a cautery puncture needle capable of easily confirming that it has reached SOLUTION: A high frequency current having a hollow pipe 15 made of metal having a hollow portion 2 communicating in the longitudinal direction and an insertion tip shape which is integrally arranged at the tip of the hollow pipe 15 is a semi-elliptical sphere or the like. Is a cautery puncture needle 10 in which a hole 9 communicating with the hollow portion 2 is formed on the side surface of the tip electrode portion 7. [Selection diagram] Fig. 1【課題】生体内の周辺組織に傷をつける等の不具合が生じにくく、心房中隔等の膜組織における目的とする狭小箇所に容易に穿刺することができるとともに、その先端が膜組織の反対側へと到達したことを容易に確認することが可能な焼灼穿刺針を提供する。【解決手段】長手方向に連通する中空部２を有する金属製の中空パイプ１５と、中空パイプ１５の先端に一体的に配設された、その挿入先端形状が半楕円球状等である、高周波電流が通電される先端電極部７とを備え、先端電極部７の側面に、中空部２に連通する孔９が形成されている焼灼穿刺針１０である。【選択図】図１
