Acromioclavicular hook plate capable of repairing coracoclavicular ligament

A hook plate and acromioclavicular technology, applied in the field of medical devices, can solve problems such as clavicle and acromion problems, suture cutting stress fractures, etc.

Inactive Publication Date: 2017-05-17
THE FIFTH PEOPLES HOSPITAL OF SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the steel plate is only an S-shaped planar steel plate, which cannot solve the problem between the clavicle and the acromion, and is prone to suture cutting, stress fractures and other problems
[0009] Therefore, there is an urgent need for a clavicle plate that can fix the coracoclavicular ligament without suture cutting, osteolysis and re-fracture, and there is no report about this clavicle plate at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The first acromioclavicular hook plate of the present invention that can repair the coracoclavicular ligament, refer to Figure 3-5 , the acromioclavicular hook plate is provided with a hook plate 1, a nail hole 2, an acromion plate 3, a first suture tunnel 4, and a second suture tunnel 5, and the nail holes 2 are distributed on the top of the hook plate 1, The nail hole 2 is through, the nail hole 2 is a threaded nail hole, the first suture tunnel 4 is arranged on the front part of the hook plate 1, and the second suture tunnel 5 is arranged on the hook plate 1. At the rear of the plate 1, the shoulder plate 3 is arranged on the right part of the hook plate 1, the shoulder plate 3 and the hook plate 1 are integrally formed, and the shoulder plate 3 and the hook plate 1 are in a “Z” shape , the center of the first suture tunnel 4 is 2.0cm away from the connection between the hook plate 1 and the acromial plate 3, and the center of the second suture tunnel 5 is 3.5cm awa...

Embodiment 2

[0044] Clinical trials were performed using the acromioclavicular hook plate of Example 1, and compared with the clavicular plate and the Endobutton plate with loops.

[0045] In clinical trial, 300 routine patients were carried out comparative experiment, 100 routine patients used clavicular plate, 100 routine patients used Endobutton belt loop steel plate, 100 routine patients used acromioclavicular hook plate of the present invention. After 3-18 months of follow-up, the following data were obtained:

[0046] (1) Among the 100 patients who received clavicle plate, 10 cases had dislocation after internal fixation removal, 7 cases had incision, and 2 cases had these two complications at the same time;

[0047] (2) Among the 100 patients who used the Endobutton plate with loops, 13 had stress fractures;

[0048] (3) Among the 100 patients who used the acromioclavicular hook plate, there were 2 cases of dislocation after removal of internal fixation, and 1 case of stress fractu...

Embodiment 3

[0051] The second acromioclavicular hook plate of the present invention that can repair the coracoclavicular ligament, refer to Figure 6 , and the difference from Embodiment 1 is only that: the shoulder lock hook plate is also provided with a locking groove 6 and a locking device 7, the locking groove 6 is arranged on one side of the nail hole 2, and the locking device 7 is arranged on Locking slot 6.

[0052] The advantage of this embodiment is that the screw can be effectively fixed by using the locking device, and the displacement of the screw can be avoided after a long time of fixing.

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PUM

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Abstract

The invention relates to an acromioclavicular hook plate capable of repairing a coracoclavicular ligament. The acromioclavicular hook plate comprises a hook plate body, screw holes, an acromion plate, first suture tunnels and second suture tunnels. The screw holes are formed in the upper portion of the hook plate body, the screw holes are through, the first suture tunnels are formed in the front portion of the hook plate body, the second suture tunnels are formed in the rear portion of the hook plate body, the acromion plate is disposed on the right portion of the hook plate body, the acromion plate and the hook plate body are integrally formed, and the acromion plate and the hook plate form a Z shape. The acromioclavicular hook plate has the advantages that the clavicle, the acromion and the coracoid can be firmly fixed through three-point fixing, and cutting and osteolysis generated due to stress concentration are avoided; a ligament anatomical position is repaired, postoperative laxity is avoided, and the situation that an internal fixture is detached first and then dislocation is conducted is avoided; sutures penetrate through a clavicular hook plate to prevent clavicular drilling, and the situation that the sutures are cut and cause clavicular fracture is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an acromioclavicular hook plate capable of repairing the coracoclavicular ligament. Background technique [0002] The characteristics of the injury in patients with acromioclavicular joint dislocation and distal clavicle fracture are: rupture of the acromioclavicular ligament and coracoclavicular ligament, resulting in upward and posterior displacement of the dislocated clavicle. [0003] During the treatment, the acromioclavicular joint needs to be reset, and the acromioclavicular ligament and coracoclavicular ligament need to be reconstructed. [0004] In clinical operations, the clavicle hook plate is used more (refer to figure 1 ) and Endobutton with tab plate (refer to figure 2 ). Both of these two steel plates have defects, such as two-point fixation, weak ligament repair, easy loosening, suture split cutting at the opening of the clavicle, and clavicle fracture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/80
CPCA61B17/8057A61B17/8061
Inventor 吴俊国王明海
Owner THE FIFTH PEOPLES HOSPITAL OF SHANGHAI
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