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Hinge type shoulder joint prosthesis

A technology of shoulder joints and hinges, applied in the field of orthopedic surgical implants, can solve the problems of neck-shaft angles that cannot be adjusted freely, prostheses that cannot be dissected, and achieve better results and a wide range of effects

Inactive Publication Date: 2013-11-27
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a hinge-type shoulder joint prosthesis to solve the problem that the neck-shaft angle between the artificial humeral head and the humeral stem prosthesis in the prior art cannot be adjusted freely, so that the replacement prosthesis cannot achieve better anatomy performance problem

Method used

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  • Hinge type shoulder joint prosthesis
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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] see figure 1 and figure 2 As shown, the present invention provides a hinge type shoulder joint prosthesis that can be used for shoulder joint replacement. The hinged shoulder joint prosthesis includes the humerus stem 2 and the humerus head 7, the humerus stem 2 is composed of the humerus stem distal part 3 and the humerus stem proximal part 4 through a pin 5 hinge connection, the humerus stem 7 and the humerus stem proximal part 4 Through taper fitting and locking, the screw 6 is connected with the proximal part 4 of the humerus stem, passes through the hole on the proximal part 4 of the humerus stem, abuts against the distal part 3 of the humerus stem, and can lock the distal part 3...

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Abstract

The invention provides a hinge type shoulder joint prosthesis. The hinge type shoulder joint prosthesis comprises a humerus handle and a humeral head, wherein the humerus handle comprises a humerus handle far-end part and a humerus handle near-end part, the humerus handle far-end part is hinged to the humerus handle near-end part, and the humeral head is connected with the humerus handle near-end part. According to the hinge type shoulder joint prosthesis, the humerus handle is formed by enabling the humerus handle far-end part to be hinged to the humerus handle near-end part, angles of the humerus handle near-end part and the humerus handle far-end part can be adjusted freely, and angles of the humeral head and the humerus handle are adjusted, namely the collodiaphyseal angle is adjusted. The collodiaphyseal angle can be adjusted freely as required, the prosthesis is close to the anatomical structure of the human shoulder joint, postoperative effect is good, and the shoulder activity range is large.

Description

technical field [0001] The invention relates to an orthopedic surgery implant, in particular to a hinged shoulder joint prosthesis used in shoulder joint replacement surgery. Background technique [0002] Shoulder arthritis, humeral head necrosis, and severe humeral head fractures are common shoulder orthopedic diseases. Modern medicine implements shoulder joint replacement surgery to treat femoral humeral head necrosis, shoulder arthritis, and humeral head fractures. The technology is quite mature. In the early cases of shoulder joint replacement, the neck-shaft angle between the old-fashioned artificial humeral head and the humeral stem prosthesis was not adjustable, which made the replacement prosthesis unable to achieve better anatomical performance, which affected the patient's shoulder joint after rehabilitation activity. [0003] At present, there are several methods in the medical field to solve the above problems, such as better preoperative design through imaging,...

Claims

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Application Information

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