FASTENING NAIL, FASTENING NAIL IMPLANTING DEVICE AND MEDICAL INSTRUMENT

Disclosed are a fastening nail (1) and a fastening nail implanting device. The fastening nail (1) comprises a nail seat (11) and a spiral part (12), wherein the front end of the spiral part (12) forms a tip (121), the rear end of the spiral part (12) is fixedly connected to the front end of the nail seat (11), and a first positioning part (110) is arranged on the end surface of the rear end of the nail seat (11). The fastening nail implanting device is configured to implant the fastening nail (1) into a human body and comprises a base (200), a conveying cable (310) and an anchoring handle (320). The rear end of the conveying cable (310) is connected to the anchoring handle (320), and the front end of the conveying cable (310) is provided with a second positioning part (120); and the anchoring handle (320) is installed on the base (200), and is configured to be capable of driving the conveying cable (310) to rotate under a first working condition and driving the conveying cable (310) to release the fastening nail (1) under a second working condition. The present invention solves the technical problems in the prior art that a fastening nail screwed into human tissue by means of a shifting fork is prone to loosening from the shifting fork, thus the operation completion time is delayed, the risk of a patient in the operation is increased, and postoperative wound healing of the patient is not facilitated. Further disclosed is a corresponding medical instrument.