An Improved Bone Tunnel Threader Wire Clipping Structure

Abstract

The invention discloses an improved thread clamping structure of a bone tunnel threading device. The improved thread clamping structure comprises a threading tube elbow and a steel wire ring, wherein thread clamping components which separate steel wires at the two ends of the steel wire ring to facilitate thread clamping of the steel wire ring are arranged inside and outside the end of the threading tube elbow. According to the improved thread clamping structure, one tube does not need to be pressed into two tubes to make a thread clamping structure at the end of the elbow, and the thread clamping structure is composed of the thread clamping components instead; the tubes at the end of the elbow do not need to be pressed through a mold, so that the tubes can be made thin and small, and the thinner drilling is, the smaller damage to bones is, and the smaller possibility of mistaken damage to muscular tissue beside the bones is; meanwhile, tube walls can be made thick and hard, so that an instrument is hard and not prone to deformation on the condition that thin tubes are used, and the service life is greatly prolonged; compared with mold pressing, the improved thread clamping structure is easy to process.

Description

technical field [0001] The invention relates to an improved clamping structure of a bone tunnel threader. Background technique [0002] Such as figure 1 As shown, a bone tunnel threader, pushing the ejector rod 1 to the left can drive the ejector rod 2 to retract to the left, when the elbow 3 of the threader is inserted into the bone network, the ejector rod 1 is released, and the spring Under the action, the ejector rod 2 is pushed to the right, so that the ejector rod 2 is pushed against the bone network. At this time, the ejector pin can be used to pass through the ejector rod 2 and the bone network, and the thread can be sent into the steel traveler 5, that is, threading; push the steel wire push rod left and right 4. The traveler 5 on the end face of the elbow 3 can be driven to retract or stretch out. The traveler 5 protrudes to facilitate threading, and the traveler 5 retracts to facilitate clamping the line and withdrawing from the bone. Such as figure 2 As shown...

AI Technical Summary

Problems solved by technology

This structure has requirements for the metal pipe at the end 31 of the threading pipe elbow: first, the pipe should be relatively thick, otherwise it will be easily crushed; second, it needs to be molded, and the cost is high; third, it is easy to damage; The tube wall must be relatively thin to form, so the finished product is easily deformed when fastened to the bone, making the threading inaccurate; fifth, due to the thin wall, it is easy to deform after repeated use of the instrument

It can be seen that the structure pressed by the mold: the tube is thick, the wall is thin, the quality is soft, it is difficult to process, and it is easy to deform

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