Reverse squeezing fixing method and device for ligament

Abstract

The reverse ligament extruding and fixing process includes the following steps: forming one bone channel on skeleton with ligament to be repaired and setting one ligament substitute into the bone channel; penetrating steel wire into the bone channel and penetrating extruded matter onto the steel wire; fixing the upper fixing column to the tail of the extruded matter; tightening the steel wire inversely to force the extruded matter and the steel wire enter to the bone channel; penetrating the steel wire into the hole in the hollow screw driver, screwing the screw driver into the central hole in the extruded matter and inversely drawing or rotating to extrude the extruded matter into the bone channel and extrude the ligament substitute so as to fix one end of the ligament substitute; unloading the fixing column and the screw driver and withdrawing the steel wire. The said process can fasten the ligament effectively so as to make the repaired ligament possess high tension.

Description

Technical field [0001] The invention relates to medical bone and joint repair technology and devices, in particular to a reverse ligament compression and fixation method and device. Background technique [0002] In orthopedic clinical surgery, joint ligament strains or ruptures are often encountered, requiring surgery to repair the ligaments. Usually, ligament repair is to use autogenous, foreign body or artificial tendon and other ligament substitutes to be sutured or fixed into the joint where the ligament needs to be repaired, and then the sutured or fixed ligament substitute will undergo some complicated processes to grow into a ligament with basically the same function as the original. . The traditional method of ligament fixation is to drill a bone hole at each end of the bone connected by the ligament, and fix the two ends of the ligament with screws, or fix it with an internal button. Each method has its own defects. For example, when the compression screw is used for fix...

AI Technical Summary

Problems solved by technology

[0004] However, in the above method, after one end 31 of the ligament substitute 3 is fixed, when the other end 32 of the ligament substitute 3 is squeezed with the screw 52, ​​as the screw 52 is screwed in the direction of the arrow 100, the ligament substitute will be squeezed. The object 3 shrinks in the direction of the arrow 100 at the same time, so that after the other end 32 of the ligament substitute 3 is fixed, the ligament substitute 3 is not tightened, but the tension of the ligament substitute 3 is reduced, and the loose ligament substitute 3 Cannot play the role of the original ligament

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