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Dynamic External Fixation Device

A kind of external fixation and dynamic technology, applied in the direction of external fixator, fixator, medical science, etc., can solve the problems of complex structure, difficult to use device, increase the burden of patients' activities, etc., to prevent joint contracture, small structure and simple operation. Effect

Active Publication Date: 2017-09-01
METAL INDS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known technology utilizes a ball and socket joint to provide a range of motion for the external fixation device, so that the patient can also have the range of motion of the metacarpophalangeal joints when using external fixation, and prevent complications, but it also has a relatively complicated structure, which can cause complications after use. The life of the patient is inconvenient, and the use of ball and socket joints cannot provide a continuous and stable tension for the joints
[0007] Obviously, the common problems of the above-mentioned known technologies are that the structure is too complicated, which makes it difficult to use the device and increases the patient's activity burden. It is necessary to improve it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 (the first bracket group 1 and the second bracket group 2 are two symmetrical metal plates)

[0039] Such as Figure 1~3 As shown, a dynamic external fixation device 10 provided by the present invention includes a first bracket set 1 , a second bracket set 2 , and at least one elastic member 3 . The first bracket set 1 has a first fixing portion 11, the second bracket set 2 has a second fixing portion 21, the two ends of the elastic member 3 are respectively connected to the first bracket set 1 and the second bracket set 2, The elastic member 3 has at least one geometric deformation zone 31 , and the geometric deformation zone 31 has an adjustable radial length S along the extending direction of the elastic member 3 .

[0040] The first bracket set 1 and the second bracket set 2 are two symmetrical metal plates, wherein the two metal plates of the first bracket set 1 extend outward from the first fixing part 11 and have a first pivot. The connecting porti...

Embodiment 2

[0048] Embodiment 2 (the first bracket group 1 and the second bracket group 2 are two asymmetric metal plates)

[0049] Such as Figure 5 As shown, the difference between this embodiment and Embodiment 1 is: the first bracket group 1 and the second bracket group 2 are two asymmetric metal plates, and the metal plates of the first bracket group 1 start from the second bracket group. A fixed portion 11 extends outward to form a first pivotal portion 41, or the metal plate body of the second bracket group 2 extends outward from the second fixed portion 21 to form a first pivotal portion 41, and the elastic member 3 has a The second pivoting portion 42 is correspondingly combined with the first pivoting portion 41 . Figure 5 Among them, one metal plate body in the first bracket group 1 and one metal plate body in the second bracket group 2 have the same shape and structure, and are arranged oppositely; the other metal plate body in the first bracket group 1 and the second bracke...

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Abstract

A dynamic outer fixing device of fracture fixing and supporting is mainly used for fracture of finger joints. The dynamic outer fixing device includes: a first support group, having a first fixing portion; a second support group, having a second fixing portion; and at least one elastic member, wherein one end of the elastic member is fixed to one of the support groups, the other end of the elastic member is connected to the other support group in a pivotal manner, and the elastic member has at least one geometric deformation zone, which has an adjustable path length in the extending direction of the elastic member. Through adoption of the elastic member that exhibits good elastic properties, stable supporting is provided, and supporting action tensile forces steady in strength can be released continuously and will not dramatically change due to increases of deformation of the dynamic outer fixing device, so that the space in a joint of an operated area is maintained, and comfort is provided. Meanwhile, the pivotal end of the elastic member provides an angle needed by the joint, and tissues are prevented from sticking to each other and the joint is prevented from contracture since the joint is fixed for a long period of time.

Description

technical field [0001] The invention belongs to auxiliary equipment for fracture treatment, specifically, it can provide a stable fixation and continuously release a stretching force tension with a stable size, maintain the space in the joint where the bone is fixed and provide the angle of movement of the joint, so as to obtain An external fixation device to prevent joint contracture due to prolonged immobility. Background technique [0002] For patients with fractures, the treatment method is mainly to restore the fracture to its normal position by external force, and then apply a fixation device, allowing the affected part to heal itself after a period of time. Since the treatment time is not short, if the fixation method is not appropriate, it will seriously hinder the daily activities of the patient. Therefore, how to effectively fix the fracture affected part? It is a very important research topic. [0003] For the affected part of the fracture, general external fix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/64
CPCA61B17/6425A61B17/6441A61B2017/564
Inventor 郭立杰陈彦年李佩渊陈怡安魏嘉民王俊杰
Owner METAL INDS RES & DEV CENT