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Shoulder-joint humerus handle prosthesis

A humerus stem and shoulder joint technology, applied in the field of shoulder humerus stem prosthesis, can solve problems such as poor initial stability of fixation technology, and achieve the effects of solving poor initial stability, preventing position changes, and ensuring stability

Inactive Publication Date: 2018-01-16
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a shoulder joint humeral stem prosthesis to solve the problem of poor initial stability of the existing humeral stem prosthesis initial fixation technology

Method used

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  • Shoulder-joint humerus handle prosthesis
  • Shoulder-joint humerus handle prosthesis
  • Shoulder-joint humerus handle prosthesis

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Embodiment Construction

[0023] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0024] The shoulder joint humeral stem prosthesis according to the embodiment of the present invention, such as figure 1 As shown, it includes: a main handle body 10 and a strip ridge 20; the strip ridge 20 is provided on the outer wall of the main handle body 10 so as to be embedded in the bone of the humeral medullary cavity 30 when the main handle body 10 is implanted into the humeral medullary cavity 30 In the cortex, the main handle body 10 is fixed in the humeral medullary cavity 30.

[0025] The shoulder joint humeral stem prosthesis applying the technical solution of the present invention includes: a main stem body 10 and a strip ridge 20; the strip ridge 20 is arranged on the outer ...

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Abstract

The invention provides a shoulder-joint humerus handle prosthesis. The shoulder-joint humerus handle prosthesis includes a main handle body and strip-shaped spines; the strip-shaped spines are arranged on the outer wall of the main handle body, so that when the main handle body is implanted in the humerus marrow cavity, the strip-shaped spines are embedded in the bone cortex of the humerus marrowcavity to fix the main handle body inside the humerus marrow cavity. Therefore, initial fixation of the humerus handle prosthesis in the humerus marrow cavity can be achieved, the situation is prevented that after the humerus handle prosthesis is stressed, the position of the humerus handle prosthesis changes, and the stability of the fixed humerus handle prosthesis is effectively ensured. The problem is solved that the initial stability of a current humerus-handle-prosthesis initial fixation technology is relatively low.

Description

Technical field [0001] The invention relates to the field of medical equipment, and in particular to a shoulder joint humeral stem prosthesis. Background technique [0002] Total shoulder joint replacement is artificial humeral head replacement and scapular glenoid surface replacement. The relief rate of shoulder joint pain can reach 80% to 90%. Like other joint replacement surgeries, infection and loosening of the prosthesis are the main reasons for the failure of total shoulder replacement prostheses, so the stability of the prosthesis in the human body is an important factor affecting the service life of the prosthesis. At present, biological fixation is the main fixation type for shoulder joint prostheses, especially humeral stem prostheses. [0003] The biological fixation of the humeral stem prosthesis is to achieve the purpose of fixation through the integration of bone tissue and the rough structure of the humeral stem surface (such as titanium slurry spraying). However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/40
Inventor 刘昆玺
Owner BEIJING AKEC MEDICAL
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