Puncture needle device for positioning in percutaneous vertebroplasty

The puncture needle device comprises an outer sleeve, an inner sleeve, a positioning needle and a screw tap, the outer sleeve is sleeved outside the inner sleeve and is in close fit with the inner sleeve, the positioning needle is arranged in the inner sleeve and is in close fit with the inner sleeve, the outer sleeve is provided with scales I, the tail end of the positioning needle is provided with a detachable handle, and the screw tap is arranged on the outer sleeve. The positioning needle is provided with scales II and is close to one side of the detachable handle; the screw tap is hollow, and a handle II is arranged at the tail end of the screw tap; the device can solve the problems that a conventional puncture needle is thick, puncture is difficult, and the puncture angle and the puncture point are inconvenient to adjust in an operation, and is easy to operate and suitable for industrial production and market popularization and application. 本实用新型公开了一种经皮椎体成形术定位用穿刺针装置，其外套筒、内套筒、定位针、丝攻，外套筒套装在内套筒外并与其紧密配合，定位针