Humeral distal-end posterior-lateral locking plate

Abstract

The application discloses a humeral distal-end posterior-lateral locking plate which is characterized in that the end face of the side, close to the humerus, of the humeral distal-end posterior-lateral locking plate is recessed inwards; the plate comprises a head and a body which are molded integrally, the top end of the body extends out to form the head, and the width of the head is greater thanthat of the body; the head, around the central axis of the body, inclines to the humeral distal-end posterior-lateral and rotates spirally, and is provided with 8 screw holes; the body is provided with at least 4 locking pressing holes; the included angles between axes of the first, the second and the third screw holes and the axis of the fourth locking pressing hole are respectively 86.4 degrees,88.1 degrees and 88.6 degrees, the projection angles of axes of the first, the second and the third screw holes on the longitudinal section of the fourth locking pressing hole are respectively 84.7 degrees, 88.1 degrees and 87.2 degrees, and the projection angles of axes of the first, the second and the third screw holes on the transverse section of the fourth locking pressing hole are respectively 85.1 degrees, 75.7 degrees and 88.3 degrees. The humeral distal-end posterior-lateral locking plate has good anatomical features and brings convenience to surgery.

Description

technical field [0001] This application relates to novel devices and technologies for first aid and rehabilitation, in particular to a posterolateral locking bone plate for the distal end of the humerus. Background technique [0002] The human humeral condyle is shaped like a wide and flat fan. The humeral condyle of this shape is prone to fracture due to its flatness, and there are many types of humeral condyle fractures, such as: intercondylar fracture of humerus, supracondylar fracture of humerus and intercondylar fracture of humerus Combined with supracondylar fracture of humerus, in addition, clinically often encounter fracture of condyle of humerus combined with fracture of humeral shaft. In the prior art, Y-shaped steel plates are mostly used to treat humeral condyle fractures, but as time progresses and technology progresses, clinically it is found that Y-shaped plates have the following defects: 1), large trauma, according to statistics, humeral condyle fractures M...

AI Technical Summary

Problems solved by technology

In the prior art, Y-shaped steel plates are mostly used to treat humeral condyle fractures, but as time progresses and technology progresses, clinically it is found that Y-shaped plates have the following defects: 1), large trauma, according to statistics, humeral condyle fractures Most of them are children, and children are in the growth and development stage, so they have higher requirements for reducing trauma; 2) Inconvenient to use, the Y-shaped plates provided by the manufacturer are basically flat plates. The operation is troublesome and the operation time is delayed; 3), the broken plate rate is high, in order to facilitate the shaping of the doctor, the manufacturer generally uses materials with low strength and low hardness to make it, so it is easy to break

In addition, if a Y-shaped plate is used to treat intercondylar fractures combined with supracondylar fractures, the stability of the intercondylar fracture line is poor in terms of mechanics, and it is easy to produce up and down dislocation, which affects the speed of fracture healing.

Long-term non-healing and up-and-down misalignment, the steel plate is prone to fatigue and fracture over time

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