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Acromioclavicular joint and clavicle fixator

A technology of acromioclavicular joints and fixators, which is applied in the field of surgical instruments, can solve problems such as complicated surgical operations, high rate of redisplacement of fractures or dislocations, and remaining local deformities, so as to simplify surgical operation techniques, shorten operation time, and reduce soft tissue damage. little effect

Inactive Publication Date: 2002-01-30
上海第二医科大学附属第九人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Non-surgical external fixation takes a long time, which limits early functional exercise. During the treatment, the patient's limbs are uncomfortable and quite painful. The re-displacement rate of fractures or dislocations is high, and local deformities are often left behind.
However, the existing internal fixation methods still have problems such as unreliable fixation and complicated operation.
Among them, the use of a bone plate with several teeth encircling arms, or the bone plate is supplemented by screws, and the performance of Kirschner wire, steel wire, screw and ordinary bone plate is slightly improved, but the fixation is unreliable, easy to loose, Fractures and dislocations are prone to redisplacement, the recovery rate and functional recovery satisfaction rate are low, and the operation is inconvenient. These major problems still cannot be properly resolved.

Method used

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  • Acromioclavicular joint and clavicle fixator
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  • Acromioclavicular joint and clavicle fixator

Examples

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Embodiment Construction

[0018] see figure 2 , 3 , 4, 5, the acromioclavicular joint and the clavicular fixator 1 are a plate-shaped body device made of NiTi shape memory alloy, and the plate-shaped body can be divided into three sections, namely the encircling section 11, the main body section 12 and the prying fork section 13.

[0019] The embracing section 11 includes a middle body 110 and an embracing arm 111, the embracing arm 111 is provided with a tooth portion 1110 with an elliptical cross-section, and the number of embracing arms 111 can be 2 to 3 pairs, which are formed by the middle body 110 and the embracing arm 111 The open ring shape and the tooth portion 1110 can make the embracing section 11 firmly clamped on the clavicle 8 after being folded.

[0020] The main body section 12 includes a front section 120 and a rear section 121. The front section 120 of the main body section 12 is connected to the middle body 110 of the surrounding section 11 at the connection point 10, and is smoot...

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Abstract

The present invention provides an acromioclavicular joint and claricle fixer. Its technical problem is to make fixation reliable and simplity operation, and the technical scheme for solving the above-mentioned technical ploblem is characterized by that one end of said fixer is surrounding section, middle is main body section and another end is fork section, between the surrounding section, main body section and fork section at least two tunning places, said fork section processes an opened fork groove, the fork can be inserted under the posterior part of acromion, and the main body section isabutted on the external surface of clavicle, between of clavicle and acromion and lower surface of acromion, and the surrounding arm is placed on front side and back side of clavicle. Said invention is applicable to internal fixation of dislocation of acromioclavicular joint or clavicular fracture.

Description

Technical field: [0001] The invention relates to a surgical instrument, in particular to a bone plate. Background technique: [0002] In clinical surgical treatment, the incidence of fracture of the outer segment of the clavicle or dislocation of the acromioclavicular joint is relatively high, such as figure 1 The relative relationship between the clavicle 8 and the acromioclavicular joint 9 shown, wherein the clavicle 8 is dislocated from the clavicle end 81 or broken from the fracture end 82, and the dislocated clavicle end 81 or the fractured end 82 of the fracture have a Strong upward displacement tendency (such as figure 1 in the direction indicated by the arrow). In clinical treatment, the following two methods are mainly used: [0003] 1. Non-surgical methods, such as various forms of external fixation; [0004] 2. Surgical method, that is, open reduction and internal fixation, such as Kirschner wire, steel wire, screw and bone plate and other fixation methods. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/58
Inventor 戴克戎孙月华郝永强
Owner 上海第二医科大学附属第九人民医院
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