< Topic >Inside the MRI device to use the gathering needle whose it is possible to be able adjust the strength of stimulus the region of the human body, or, according to the state, and the like is offered.SolutionsOn the both ends of petiole 1 support hole 3a and 3b are formed respectively in length direction of petiole 1. Needle body support 9a and 9b which sudden facilities do many needle body 7a and 7b to each support hole 3a and 3b in outer part edge 5a and 5b advance and retreat it sticks unrestrictedly in length direction of support hole 3a and 3b. Spring expedient 15a and 15b which push needle body support 9a and 9b in direction outside usual distribution facilities are done with inside edge 13of a inside edge 11of a needle body support 9a and 9b, 11b and each support hole 3a and 3b and 13b. To outer part edge 5of a needle body support 9a and 9b, 5b and the said outer part edge needle body 7a and 7b which sudden facilities are done from each support hole 3a and 3b it projects to direction outside usual. It formed petiole 1 and needle body support 9a, 9b and needle body 7a, 7b and spring expedient 15a and 15b with the plastic.< Selective figure >Figure 1【課題】人体の部位、ないし、その状態等に応じて刺激の強さを調節することができ、MRI装置内で使用することが可能である集合鍼を提供する。【解決手段】柄部1の両端には支持孔3a、3bを柄部1の長さ方向にそれぞれ形成する。各支持孔3a、3bには外側端5a、5bに多数の鍼体7a、7bを突設した鍼体保持体9a、9bを支持孔3a、3bの長さ方向に進退自在に嵌着する。鍼体保持体9a、9bの内側端11a、11bと各支持孔3a、3bの内側端13a、13bとの間には鍼体保持体9a、9bを常時外方に押すばね手段15a、15bを配設する。鍼体保持体9a、9bの外側端5a、5bと該外側端に突設した鍼体7a、7bとは各支持孔3a、3bから常時外方に突出する。柄部1と鍼体保持体9a、9bと鍼体7a、7bとばね手段15a、15bとは合成樹脂により形成した。【選択図】図1
