Distal clavicle locking plate

Abstract

The invention relates to a distal clavicle locking plate which comprises a locking plate main body, wherein the locking plate main body is matched with the shape of a clavicle; locking holes are formed in the locking plate main body. The distal clavicle locking plate is characterized in that the locking plate main body comprises a distal end, a rear part and a middle part; a first locking hole is formed in the distal end; a second locking hole is formed in the near end; a pressurizing return groove is formed in the middle part; the pressurizing return groove is elliptically shaped; the locking plate main body comprises a bone pasting side and an operation side; steps are formed on the bone pasting side; the surfaces of the steps are arranged in an arc-shaped surface manner matched with the surface of the clavicle. The structures are integrated and supplement one another, so that the locking plate is stable in stress, good in fixation effect and easy to mold.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a locking plate at the distal end of the clavicle. Background technique [0002] The clavicle is a long tubular bone with an "S" shape, which is placed between the sternal manubrium and the scapula, and becomes the only bony support between the upper limb and the trunk. The medial end of the clavicle is connected to the sternum to form the sternoclavicular joint; the lateral end is connected to the acromion to form the acromioclavicular joint. The entire length of the clavicle can be felt under the skin, of which the inner 1 / 3 is thicker and triangular in shape; the middle 1 / 3 is thinner; and the outer 1 / 3 is flat, wide front and back, and thin up and down; clavicle fracture is an orthopedic portal 1. One of the common injuries in the emergency department, accounting for about 5% of total body fractures; due to the particularity of the anatomical structure, fractures...

AI Technical Summary

Problems solved by technology

Since the acromioclavicular joint is a fretting joint, it is still allowed to fret after clavicular hook plate fixation, and long-term fretting stress may cause the screws fixing the plate to loosen and cause the plate to tilt

Although the reconstruction plate applied to the diaphysis of the long tubular bone has good plasticity, it cannot fix enough screws on the distal bone fragment of the fracture, and it is not suitable for the fixation of the fracture of the outer end of the clavicle.

[0005] To sum up, the current clinical fixation methods for fractures of the outer end of the clavicle are not ideal, and the tension band method is likely to cause fixation failure; although the clavicular hook plate retains the range of motion of the acromioclavicular joint, the fretting of the joint may cause the plate and screw to fail. loose

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