PROBLEM TO BE SOLVED: To provide a guide wire insertion device which prevents damage to a guide wire and can make a distal end portion of the guide wire move to a prescribed position of a human tissue.SOLUTION: A guide wire insertion device 10 includes: a tubular needle 20 which is composed of a metal pipe and has a distal end constituting a puncture part 21 by obliquely cutting the distal end relative to an axial direction to be able to puncture a human tissue an operation tube 30 which is connected to a proximal end side of the tubular needle 20 for moving the tubular needle 20 in a prescribed direction and a guide wire 1 which is inserted into the operation tube 30 and the tubular needle 20 and can appear and disappear from an opening of the puncture part 21 of the tubular needle 20. In the puncture part 21 of the tubular needle 20, a blade surface 23a that can cut into the human tissue is formed on a distal end side, and an inner peripheral surface on the proximal end side has a structure without the blade surface.COPYRIGHT: (C)2015,JPO&INPIT【課題】ガイドワイヤの損傷を防いで、その先端部を人体組織の所定位置に移動させることができる、ガイドワイヤ挿入装置を提供する。【解決手段】このガイドワイヤ挿入装置10は、金属管からなり、先端が軸方向に対して斜めにカットされて、人体組織に穿刺可能とされた穿刺部21をなす筒状針20と、筒状針20の基端側に接続され、同筒状針20を所定方向に移動させる操作チューブ30と、操作チューブ30及び筒状針20に挿入されて、筒状針20の穿刺部21の開口から出没可能とされたガイドワイヤ1とを備え、筒状針20の穿刺部21は、その先端側に人体組織に切込み可能な刃面23aが形成され、基端側の内周面は、前記刃面がない構造とされている。【選択図】図1
