A portal nail guide and driver for cruciate ligament reconstruction

Abstract

The invention provides a gate-shaped nail guiding and driving device for cruciate ligament reconstruction, belongs to the technical field of medical appliances, and aims to solve the problems that a gate-shaped nail in the prior art is easily deformed when being knocked, is difficult to locate and is undeterminable in driving depth. The device comprises a positioning shell and a knocking stick which is arranged inside the positioning shell and can slide relative to the positioning shell, wherein a through hole A is formed in the center of the positioning shell along the axes; an end cover of which a through hole B is formed in the center is arranged at one end of the positioning shell; the through hole A and the through hole B are communicated; two guide holes are formed in the end cover, and are symmetric to the through hole B; a gate-shaped groove communicated with the through hole A is formed in the side wall, far from the end with the end cover, of the positioning shell; four side wall end parts, far from the end of the end cover, of the positioning shell have inward sunk arc structures; the knocking stick comprises a stick body and a knocking heat fixed at one end of the stick body; arc grooves are formed in the length direction of the side wall of the knocking head and the corresponding position of the guide hole A; the knocking head is matched with the end face of the to-be-driven gate-shaped nail; and the knocking head is matched with the through hole A, and the knocking stick is matched with the through hole B.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a door-shaped nail guide and driver for cruciate ligament reconstruction. Background technique [0002] The door-shaped nails used in sports medicine are mainly used in the reconstruction of the anterior and posterior cruciate ligaments to reinforce the tendon after implantation. At present, the main methods of driving door-shaped nails are to use electric drills, drill holes with Kirschner wires, and use blood vessels. Hold the door-shaped nails with the pliers, align the door-shaped nails with the two drilled holes, and drive them in directly with a hammer. Disadvantages of this method: 1. Most of the patients are young and their bones are relatively hard. When it comes to door nails, it is not advisable to drive them in at one time, it needs to be tapped and observed repeatedly, which wastes a lot of time, and the door nails are easily deformed by knocking,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a door-shaped nail guide and driver for cruciate ligament reconstruction, which solves the problems in the prior art that door-shaped nails are easy to be knocked and deformed, difficult to locate, and difficult to determine the depth of driving

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