Anti-puncture device for medical puncture device and medical infusion device

The invention discloses an anti-stabbing device for a medical puncture device and a medical infusion device.The anti-stabbing device for the medical puncture device comprises a sheath, a puncture needle and a retainer elastic piece, the retainer elastic piece is arranged in the sheath, and the puncture needle is arranged between the retainer elastic piece and the sheath in a penetrating mode. According to the scheme, the integrally-formed retainer elastic piece is adopted and matched with the blood return groove of the tube body of the puncture needle under the matching action of orientation of the base and the sheath to achieve 360-degree dead-angle-free rapid activation, the puncture needle does not need to be provided with local deformation characteristics to activate the protection device, lossless protection of the puncture needle is achieved, and the integrity of functional application of the puncture needle is kept. 本发明公开了医疗穿刺器用防刺伤装置及医用注输装置，其中医疗穿刺器用防刺伤装置包括护套、穿刺针以及保持架弹片，所述保持架弹片设置在护套内，所述穿刺针穿设在保持架弹片和护套之间。