Bone fixator guide instrument

Abstract

The invention provides a bone fixator guide instrument which comprises a guide apparatus main body, a locating device and a guide sleeve, wherein the guide apparatus main body comprises two guide straight slots; the guide straight slots can be in sliding fit with two fixation jaws; a plurality of kirschner wire holes formed along the extension direction of the guide straight slots are formed in the guide apparatus main body; the locating device comprises a first slide binding part and an extension part; the first slide binding part comprises two raised lines in sliding fit with the two guide straight slots; the extension part has an arc-shaped structure matched with the bone outer side face; when the extension part is contacted with the bones, the guide apparatus main body can slide along the first slide binding part so as to be contacted with the bones; after the guide apparatus main body is located, kirschner wires are punched into the kirschner wire holes so as to fix the guide apparatus main body; the guide sleeve can be inserted into the guide straight slots so as to guide a bit to the bones for drilling; the guide straight slots can be used for guiding the fixation jaws into the drill holes.

Description

technical field [0001] The invention relates to a medical device, in particular to a bone fixer guiding device for assisting in implanting the bone fixer into a bone. Background technique [0002] In the medical operation for the treatment of patella fractures, the patella fixator can be used to compress and fix the patella to accelerate the healing of the patella. see Figure 10 and Figure 11 , the existing patella fixator 5 includes a fixer body 51 and two fixation claws 52, the two fixation claws 52 are located on one side of the fixator body 51, and the fixation claws 52 are bent downward to align with the fixator body 51 The composition is basically a U-shaped structure. When in use, two drill holes can be opened on the patella first, and the two drill holes simultaneously extend into the two broken bones of the patella, and then insert the two fixing claws into the two drill holes respectively. Thereafter, the fractured patella can be compressed and fixed using the...

AI Technical Summary

Problems solved by technology

[0003] During the operation, the guide tube can be used to guide the drill bit when drilling, but the existing guide tube is difficult to accurately locate the position of the drill hole, which makes the position of the drill hole deviate, so it is difficult to ensure the fixation of the patella fixator The claws can be accurately inserted into the drill hole, which increases the difficulty of the operation and affects the therapeutic effect of the patellar fixator

[0004] And not only in patella surgery, but also in metaphyseal fracture surgery. The front end of the metaphyseal bone fixator is also equipped with bent claws, so it is also difficult to insert the claws and drill holes. The problem of deviation

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