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Modular shoulder prosthesis

A shoulder joint and combined technology, which is applied in the field of combined shoulder joint prosthesis, can solve the problems of affecting the range of motion of the shoulder joint, adjustable position and less matching of specifications, and achieve the same effect as it is beneficial to postoperative rehabilitation.

Active Publication Date: 2015-12-23
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a combined shoulder joint prosthesis to solve the problem that the shoulder joint prosthesis in the prior art has less adjustable positions and specifications, which affects the range of motion of the shoulder joint after the patient recovers.

Method used

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  • Modular shoulder prosthesis
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Embodiment Construction

[0017] 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.

[0018] see figure 1 and figure 2 As shown, the combined shoulder joint prosthesis of the present invention includes a humerus stem 1 and a humerus head 2, the humerus stem 1 is formed by connecting the humerus stem distal part 3 and the humerus stem proximal part 4 through a lug socket, and the humerus stem 2 It is locked with the proximal part 4 of the humerus stem through taper fitting.

[0019] see figure 2 As shown, the inner tapered surface of the humeral head 2 cooperates with the upper end tapered surface of the humeral stem 1, and the locking of the humeral head 2 and the humeral stem 1 can be achieved by maintaining a certain taper. The upper end of the proximal part of the humer...

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Abstract

The invention provides a combined shoulder joint implant which comprises a humerus handle and a humerus head, wherein the humerus handle comprises a humerus handle far end part and a humerus handle near end part which are detachably connected, and the humerus head is connected with the humerus handle near end part. By adopting the combined shoulder joint implant, the humerus handle far end part and the humerus handle near end part are connected through a slot, many humerus handle far ends and many humerus handle near ends with different specifications can be assembled in operations, so that many change combinations of the neck shaft angle, the back inclination and the offset distance of the combined shoulder joint implant can be achieved. The effect after the combined shoulder joint implant is implanted into human bodies is similar to the human anatomical morphology and postoperative rehabilitation is benefited.

Description

technical field [0001] The invention relates to the field of implanted prostheses in orthopedic surgery, in particular to a combined shoulder joint prosthesis. Background technique [0002] Shoulder arthritis, humeral head necrosis, and severe humeral head fractures are common shoulder orthopedic diseases. In modern medicine, the technology of performing shoulder joint replacement surgery to treat femoral head necrosis, shoulder arthritis, and humeral head fractures is quite mature. In the early cases of shoulder arthroplasty, the old humeral head and humeral stem prosthesis did not have adjustable mutual position (such as neck-shaft angle, retroversion and offset) design so that the replacement prosthesis could not achieve better anatomy performance, thereby affecting the range of motion of the shoulder joint after rehabilitation. If the mutual position adjustment between the humeral head and the humeral stem can be realized, the prosthesis can be closer to the anatomical...

Claims

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Application Information

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