PROBLEM TO BE SOLVED: To provide a puncture device allowing certain puncture of a biological tissue to a prescribed depth, reducing a load on a patient, enhancing the safety of the patient, and also enhancing the safety of an operator.SOLUTION: This puncture device 1 includes: a puncture needle 5 having a sharp needlepoint 531 for puncturing the biological tissue a long-shaped vagina insertion member 2 inserted into the vagina a guide member 3 having a tip part 321 that is a guide part positioned in a direction for which the needlepoint 531 heads and a connection member 4 connecting the vagina insertion member 2 and the guide member 3. The puncture needle 5 is movably supported such that the needlepoint 531 approaches to the tip part 321, the puncture needle 5 is provided with a first magnet 10a near the needlepoint 531, and the tip part 321 of the guide member 3 is provided with a second magnet 10b. The approach distance between the needlepoint 531 and the tip part 321 is restricted in a degree that the needlepoint 531 and the tip part 321 are separated from each other by the repulsive force between the first magnet 10a and the second magnet 10b when the needlepoint 531 approaches to the tip part 321.COPYRIGHT: (C)2013,JPO&INPIT【課題】生体組織を所定の深さに確実に穿刺することができるとともに、患者の負担が少なく、患者の安全性が高く、また術者の安全性も高い穿刺装置を提供すること。【解決手段】穿刺装置1は、生体組織を穿刺する鋭利な針先531を有する穿刺針5と、膣内に挿入される長手形状の膣挿入部材2と、針先531が向かう方向に位置する案内部である先端部321を有する案内部材3と、膣挿入部材2と案内部材3とを連結する連結部材4とを備え、穿刺針5は、針先531が先端部321に向かって接近するように移動可能に支持されており、穿刺針5には、針先531付近に第1の磁石10aが設けられ、案内部材3には、先端部321に第2の磁石10bが設けられており、針先531が先端部321に接近した際、第1の磁石10aと第2の磁石10bとの斥力により、針先531と先端部321とが離間する程度に互いの接近距離が規制されるよう構成されている。【選択図】図2
