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Assembled shoulder joint prosthesis component

A shoulder joint and modular technology, applied in the field of modular shoulder joint prosthesis components, can solve the problems of unstable structure, poor firmness and stability, etc.

Inactive Publication Date: 2018-03-09
JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this structural feature of the shoulder joint ensures its flexibility, its firmness and stability are worse than other joints, and it is the most unstable joint among the large joints of the whole body.

Method used

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  • Assembled shoulder joint prosthesis component
  • Assembled shoulder joint prosthesis component
  • Assembled shoulder joint prosthesis component

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] Such as figure 1 and figure 2 As shown, the present invention includes a humerus stem prosthesis 1, a humerus adapter disc 2, a humerus adapter disc pad 3, a glenoid ball head 4, a glenoid fixation disc 5, and a bone cage 6 arranged successively at the proximal end of the humerus prosthesis.

[0027] Such as image 3 As shown, the humeral prosthesis includes a humeral prosthesis head 7 and a humeral prosthesis handle 8, and the humeral prosthesis handle is provided with a smooth surface,

[0028] Such as Figure 4 , Figure 5 As shown, the proximal end of the head of the humerus prosthesis is provided with a receiving end face 9, the middle part of the receiving end face is provided with a humeral stem prosth...

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Abstract

The invention relates to the field of medical instruments, in particular to an assembled shoulder joint prosthesis component which comprises a humerus stem prosthesis and further comprises a humerus adapting disc, a humerus adopting disc pad, a shoulder glenoid bulb, a shoulder glenoid fixing disc and a bone cage sequentially arranged at the near end of the humerus stem prosthesis. The assembled shoulder joint prosthesis component can relieve pain caused by lesions on two sides of humerus head and glenoid cavity and can relieve osteoarthritis, rheumatoid arthritis, traumatic arthritis, shoulder joint maldevelopment and tumor, and wider joint movement range can be acquired without causing prosthesis collision. The far end of a humerus stem is designed to be glazed while the near end of thesame is in assembling connection, so that effective fixing of humerus tubercule bone blocks is realized, and movement of the bone blocks is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a modular shoulder joint prosthesis assembly. Background technique [0002] The shoulder joint consists of the glenoid of the scapula and the head of the humerus, and is a ball-and-socket joint. Because the humeral head is large and spherical, the glenoid is shallow and small, and only covers 1 / 3 of the humeral head, and the joint capsule is thin and loose, so the shoulder joint is the joint with the largest and most flexible range of motion in the human body. It can be used as an anterior joint. Flexion, extension, adduction, abduction, internal rotation, external rotation and circular movement. However, although this structural feature of the shoulder joint ensures its flexibility, its firmness and stability are worse than other joints, and it is the most unstable joint among the large joints of the whole body. The most common is the anterior-inferior dislocation of the shoulde...

Claims

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Application Information

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IPC IPC(8): A61F2/40
CPCA61F2/4014A61F2/4059A61F2/4081
Inventor 刘念
Owner JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD
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