Biotype artificial hip joint surface replacement prostheses

A hip joint and biological technology, applied in the direction of hip joints, prostheses, joint implants, etc., can solve problems such as fractures around the prosthesis, loose prosthesis, difficult prosthesis, etc., to increase resistance to twisting and shearing force ability, high mechanical strength, and the effect of avoiding femoral neck fracture

Active Publication Date: 2013-12-18
刘礼初
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, artificial hip joint surface replacement prosthesis is usually designed with a one-axis short handle in the hemispherical surface prosthesis, and the short handle is inserted in the direction of the femoral neck. The principle is to transfer the weight of the human body to the valley of the femoral neck. Osteoporosis occurs, making it difficult to effectively fix the prosthesis, which in turn causes problems such as prosthetic loosening and periprosthetic fractures

Method used

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  • Biotype artificial hip joint surface replacement prostheses
  • Biotype artificial hip joint surface replacement prostheses
  • Biotype artificial hip joint surface replacement prostheses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] As a preferred embodiment of the present invention, on the basis of the above solution, the side wall of the insertion post 3 coincides with the central axis of the hemispherical prosthesis cap 1 .

Embodiment 2

[0035] As a preferred embodiment of the present invention, on the basis of the above scheme, the root of the main screw 5 is provided with an external thread, and the inner wall of the bearing column 3 is provided with a thread corresponding to the root of the main screw 5 corresponding to the external thread. Matching internal thread. . When the inner diameter of the bearing column 3 matches the diameter of the main screw 5, the main screw 5 can be prevented from rotating in the bearing column 3, further strengthening the connection relationship between the various components. The preferred inner diameter of the bearing column 3 is 2.5-3mm.

Embodiment 3

[0037] As a preferred embodiment of the present invention, on the basis of the above solution, the cavity 41 of the insertion post 4 matches the carrying post 3 and the hollow connector 31 . The advantage of this arrangement is that it can prevent the gap between the bearing column 3 and the insertion column 4, and strengthen the connection between the two.

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Abstract

The invention discloses a biotype artificial hip joint surface replacement prosthesis comprising a hemispheric prosthesis cap, which is cooperated with the shape of the caput femoris and is disposed on the caput femoris; a carrying steel plate, which is fixedly disposed on one side of the tuberosity of the caput femoris; a carrying column; an inserting column; a main bolt used for fixing the carrying column; and at least one auxiliary bolt. The invention can be used to prevent the loosening of the prosthesis and the fracture of the femoral neck around the prosthesis effectively.

Description

[0001] technical field [0002] The invention relates to the technical field of hip joint surface replacement, in particular to a biological artificial hip joint surface replacement prosthesis. [0003] Background technique [0004] The hip joint is one of the most important weight-bearing joints in the human body. It is composed of the femoral head, acetabulum and surrounding soft tissues. Artificial hip joint surface replacement refers to a prosthesis made of metal materials with good biocompatibility and mechanical properties similar to the surface of the human femoral head. It uses surgical methods to replace the articular surface of the femoral head destroyed by disease or injury. Its purpose is to remove the lesion, clear the pain, and restore joint activity and original function. [0005] At present, artificial hip joint surface replacement prosthesis is usually designed with a one-axis short handle in the hemispherical surface prosthesis, and the short handle is in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/32A61B17/68
CPCA61F2002/30433A61B17/746A61F2/3603
Inventor 刘礼初
Owner 刘礼初
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