PROBLEM TO BE SOLVED: To provide a puncture device having further improved use comfort.SOLUTION: A puncture device A1 includes: a housing 1 a puncture body 2 that is retained reciprocatably, including forward/backward movement, with respect to the housing 1 and has a needle 21a to be punctured into a skin and a forwarding spring 31 and a backwarding spring 32 for reciprocating the puncture body 2. The reciprocation of the puncture body 2 includes a puncture section including a puncture point where the puncture body 2 is punctured into the skin, and a backward section set to behind the puncture section. The puncture device further includes resistance force generating means that applies resistance force to the puncture body such that the dimension of the backward section becomes larger than the dimension of the puncture section.COPYRIGHT: (C)2015,JPO&INPIT【課題】より快適に使用することが可能な穿刺装置を提供すること。【解決手段】ハウジング1と、ハウジング1に対して前進および後退を含む往復動可能に保持され、且つ皮膚に突き刺すための針21aを有する穿刺体2と、穿刺体2を往復動させるための前進ばね31および後退ばね32と、を備える穿刺装置A1であって、穿刺体2の往復動は、穿刺体2が皮膚に突き刺さる穿刺点を含む穿刺区間と、この穿刺区間より後に設定された後退区間と、を有しており、穿刺区間における大きさよりも後退区間における大きさが大となるように、穿刺体に対して抵抗力を付与する抵抗力発生手段を備える。【選択図】図3
