PROBLEM TO BE SOLVED: To provide a puncturing device which prevents the casing of a mounted puncture needle tip from being moved in a direction to release the mounting.SOLUTION: The puncturing device 1 is configured to removably mount the puncture needle tip 12 on the distal end part of the puncturing device and is used when puncturing the surface of a living body. The puncturing device 1 includes: a pair of movement prevention members 6 which is engaged with the casing 18 of the puncture needle tip 12 in a state in which the casing 18 is mounted on the mounting part 150 of a front end member 118 and which prevents the movement of the casing 18 with respect to the front end member 118 in a direction to release the mounting of the casing 18 and an eject mechanism which releases or mitigates the engagement of the movement prevention members 6, moves the casing 18 in a distal end direction with respect to the front end member 118, and removes the puncture needle tip 12 from the puncturing device 1.COPYRIGHT: (C)2012,JPO&INPIT【課題】装着された穿刺針チップのケーシングがその装着が解除される方向へ移動するのを防止することができる穿刺装置を提供すること。【解決手段】穿刺装置1は、先端部に穿刺針チップ12を着脱自在に装着し、生体表面を穿刺するときに用いられる装置である。穿刺装置1は、穿刺針チップ12のケーシング18が前端部材118の装着部150に装着された状態で、ケーシング18に係合し、ケーシング18の装着が解除される方向への前端部材118に対するケーシング18の移動を阻止する1対の移動阻止部材6と、移動阻止部材6の係合を解除または緩和し、ケーシング18を前端部材118に対して先端方向に移動させ、穿刺針チップ12を穿刺装置1から取り外すイジェクト機構とを備える。【選択図】図1
