The present invention discloses a puncture device, and the puncture device is installed outside the needle base, the needle, and the needle base, and is slidably engaged with the needle base along the extension direction of the needle. The first structural member and the first stopper mechanism are installed to restrict the separation of the first structural member from the needle base along the direction of extension of the needle, and to the outside of the first structural member. And a second structural member that is slidably engaged along the extending direction of the needle. The second structural member is provided with a second stopper mechanism. Limiting the separation of the second structural member from the first structural member along the extending direction of the needle, and the first structural member and the second structural member sliding along the extending direction of the needle. By doing so, the needle is housed in the second structural member. There is an advantage that the operator's skin is easy to operate during use, and the patient's skin is comfortable. After use, the structural member immediately above the needle base covers the needle, and there is no gap between the structural member and the needle base. It is firmly connected and structural members do not fall off, effectively improving product safety. [Selection] Figure 2本発明は、穿刺装置を開示しており、当該穿刺装置は、針基と、針と、針基の外部に設置されて、針基とともに針の延長方向に沿って摺動可能に係合される第１の構造部材と、第１のストッパー機構が設置されて、第１の構造部材が針の延長方向に沿って針基から分離されることを制限し、第１の構造部材の外部に設置されて第１の構造部材が針の延長方向に沿って摺動可能に係合される第２の構造部材とを、備え、第２の構造部材には第２のストッパー機構が設置されて、第２の構造部材が針の延長方向に沿って第１の構造部材から分離されることを制限し、第１の構造部材及び第２の構造部材は、針の延長方向に沿って摺動することにより、針を第２の構造部材に収納する。使用時にオペレータの操作がしやすく、患者の皮膚が快適になる利点があり、使用後は急速に針基の上方の構造部材が針をカバーするようにし、また構造部材と針基との間は堅固に接続されて、構造部材が脱落することは発生しないことで、効果的に製品の安全性を向上させた。【選択図】図２
