CN204318886U - The special lockplate of a kind of clavicle - Google Patents

Abstract

The special lockplate of a kind of clavicle, comprise the plate body with the shape adaptation of clavicle, described plate body is provided with bone screw holes, and the both sides of the distal tip of described plate body are respectively equipped with and stretch out and reclinately encircle hook.This utility model is planted above clavicle when performing the operation and using, and realizes nail by piercing nail in bone screw holes, and the hook of encircling of its distal tip is positioned at by scapula simultaneously, plays tension band internal fixtion effect.

Description

A special lock plate for clavicle

technical field

The utility model relates to a special locking plate for the clavicle.

Background technique

Because the distal end of the clavicle is cancellous bone and the cortical bone is relatively thin, the coracoclavicular ligament or its related structures are involved. The long-term failure rate of the treatment of distal clavicle fractures with traditional internal fixation methods and locking plates is high.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the existing special locking plate for clavicular, the utility model provides a special locking plate for clavicle with a high long-term success rate for treating distal clavicle fractures.

The technical solution of the utility model to solve the technical problem is: a special locking plate for the clavicle, including a plate body adapted to the shape of the clavicle, the plate body is provided with bone nail holes, and the distal end of the plate body The two sides of the head are respectively provided with encircling hooks extending outwards and bending downwards.

Further, the bent portion of the embracing hook is arc-shaped.

Further, there are 8 large bone screw holes evenly distributed on the part other than the distal head of the plate body, and the diameter of the large bone screw holes is 4.2 mm; two rows are evenly distributed on the distal head of the plate body Small bone screw holes parallel to each other, each row of small bone screw holes has three small bone screw holes, and the diameter of the small bone screw holes is 2.9 mm.

The utility model is implanted above the clavicle during operation, and the bone nail is realized by drilling the bone nail in the bone nail hole, and meanwhile, the embracing hook of the distal head is located beside the scapula, which has the internal fixation effect of the tension band.

The beneficial effects of the utility model are as follows: 1. The operation of the steel plate is simple, the trauma is small, the fixation is firm, no external fixation is required, and early functional training can be performed; 2. Through the function of the encircling hook, it can provide strong fixation especially for the comminuted fracture end, Avoid injury involving the acromioclavicular joint; 3. The maximum area of fixed anatomical reduction of comminuted fracture fragments can effectively prevent clavicle shortening deformity and avoid malunion. 4. When the embracing hook combined with the steel plate is implanted above the clavicle, it can play a tension band internal fixation effect to resist bending stress and rotational stress. The upper fixation bone screw can provide resistance to axial tensile load, and the torsion resistance is stronger. Postoperative Can provide better mechanical stability.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a sectional view taken along line A-A of Fig. 1 .

Detailed ways

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

With reference to Fig. 1, Fig. 2, a kind of clavicle-specific locking plate comprises a plate body 1 adapted to the shape of the clavicle, the plate body 1 is provided with bone nail holes, and the distal head 2 of the plate body The two sides are respectively provided with encircling hooks 3 extending outwards and bending downwards. In this embodiment, the bending portion of the embracing hook 3 is arc-shaped. The utility model is implanted above the clavicle during operation, and the bone nail is realized by drilling the bone nail in the bone nail hole. At the same time, the embracing hook 3 of the distal head is located next to the scapula to play the internal fixation effect of the tension band.

In this embodiment, eight large bone screw holes 4 are evenly distributed on the part other than the distal head 3 of the plate body, and the diameter of the large bone screw holes 4 is 4.2 mm; The part 2 is evenly distributed with two rows of small bone screw holes 5 parallel to each other, each row of small bone screw holes 5 has three small bone screw holes, and the diameter of the small bone screw holes 5 is 2.9 mm. The diameter of the large bone screw hole 4 is relatively small, which can effectively avoid bone cracks, and the diameter of the small bone screw hole 5 is smaller, adapting to the characteristics of cancellous bone at the distal end of the clavicle.

The utility model has the advantages of simple operation, small trauma, firm fixation, no need for external fixation, and early functional exercise; through the function of the embracing hook, it can especially provide strong fixation for the comminuted fracture end, avoiding damage to the acromioclavicular joint; the largest area Fixing the comminuted fracture fragments by anatomical reduction can effectively prevent shortening and deformity of the clavicle and avoid malunion; when the embracing hook and steel plate are implanted above the clavicle, it can play a tension band internal fixation effect to resist bending stress and rotational stress. Nails can provide resistance to axial tensile loads, are more resistant to torsion, and can provide better mechanical stability after surgery.

Claims (3)

1. A special locking plate for clavicle, comprising a plate body adapted to the shape of the clavicle, said plate body being provided with bone nail holes, characterized in that: both sides of the distal head of said plate body are respectively provided with There are wrap hooks that extend outward and bend downward. 2. The clavicle-specific locking plate according to claim 1, wherein the bending portion of the embracing hook is arc-shaped. 3. The clavicle-specific locking plate according to claim 1 or 2, characterized in that: the part of the plate body other than the distal head is evenly distributed with 8 large bone screw holes, and the diameter of the large bone screw holes is 4.2mm; The distal head of the plate body is evenly distributed with two rows of small bone screw holes parallel to each other, each row of small bone screw holes has three small bone screw holes, and the diameter of the small bone screw holes is 2.9 mm.