Distal humerus posterior-lateral bone fracture plate

Abstract

Disclosed is a distal humerus posterior-lateral bone fracture plate comprising a bone fracture plate body, the bone fracture plate body is divided into a near end of the bone fracture plate body and a far end of the bone fracture plate body, the lower end of the far end of the bone fracture plate body is of a bulged structure, and the near end of the bone fracture plate body is sequentially provided with a near-end kirschner wire hole, a near-end locking hole, a near-end sliding hole and a near-end lower locking hole from top to bottom; a plurality of near-end lower locking holes is formed in the bone fracture plate far end, near-end lower kirschner wire holes are formed between the adjacent near-end lower locking holes, a far-end sliding hole, a plurality of far-end locking holes, a plurality of far-end kirschner wire holes and a plurality of far-end lower locking holes are sequentially formed in the bone fracture plate far end from top to bottom, and the far-end locking holes and the far-end kirschner wire holes are distributed in an up-down staggered mode. The number of the far-end lower locking holes is three, the far-end lower locking holes are distributed in the bulged structure at the lower end of the far end of the bone fracture plate along a triangle, and far-end lower kirschner wire holes are formed in the peripheries of the far-end lower locking holes. A plurality of kirschner wire holes is formed in the bone fracture plate, so that the kirschner wire holes can be used under various fracture conditions.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a posterolateral bone plate of the distal end of humerus. Background technique [0002] Currently, for complex distal humerus fractures, there are three different bone plates that can be fixed from three different directions. They are medial distal humerus, lateral distal humerus, posterolateral distal humerus plate. It can be selected clinically according to the situation, and can also be used in combination. The existing distal humerus posterolateral bone plate mainly fits the anatomical type of the posterolateral distal humerus. The proximal end is close to the posterior aspect of the humerus, and the distal end is close to the posterolateral plane of the distal humerus. The proximal end of the plate is thinner and wider with smaller screw holes. The distal end is thicker and narrower, with larger screw holes. [0003] The existing posterolateral bone plate of the...

AI Technical Summary

Problems solved by technology

[0003] The existing posterolateral bone plate of the distal humerus has the following disadvantages: the universal locking hole at the proximal end of the joint is more likely that the screw will enter the joint cavity, and the requirements for the doctor's operation are higher; the bone plate has fewer Kirschner wire holes, and the use It is not convenient for temporary fixation and positioning; the humerus itself is not straight, but has curvature and physiological curvature. The surface of the existing bone plate does not fit the posterior surface of the humerus, and the radius of curvature of the cross section is too large, which is prone to sticking. It is an accident that is not tightly closed, and it is irreversible after the occurrence; elbow fractures are complex and changeable, and there are too few Kirschner wire holes. In order to save space, more locking-ordinary combining holes are selected at the distal end of the bone plate, which can easily make the fixation unstable; there are fewer locking holes and larger nail holes at the distal end of the bone plate, resulting in unstable fixation and greater damage to bone tissue

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