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Dislocation-free acetabulum lining prosthesis

An acetabular and lining technology, applied in the direction of prosthesis, acetabular socket, hip joint, etc., can solve problems such as joint dislocation, achieve the effect of avoiding joint dislocation, improving physiological function, and simple structural design

Active Publication Date: 2015-06-03
苏州宸泰医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of anti-dislocation acetabular lining prosthesis has solved the problem of partial joint dislocation, but this way of only preventing dislocation rather than avoiding dislocation still has a huge risk

Method used

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  • Dislocation-free acetabulum lining prosthesis
  • Dislocation-free acetabulum lining prosthesis
  • Dislocation-free acetabulum lining prosthesis

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0018] The non-dislocation acetabular lining prosthesis includes a lock ring 1 made of a biocompatible metal material, including but not limited to stainless steel, and a biocompatible plastic, including but not limited to an ultra-high molecular weight polyethylene material, Acetabular lining made of highly cross-linked polyethylene and polyoxymethylene, etc. 2.

[0019] The lock ring 1 can adopt various structural forms to realize the locking effect.

[0020] Lock ring 1 is used as Figure 4 When the structure of the water pipe throat clamp 1.1 is shown, the structure of the water pipe throat clamp 1.1 should be assembled with the acetabular lining 2 in advance. Because the water pipe throat clamp 1.1 is similar to the rack and pinion structure, the tightening of the structure of the water pipe ...

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Abstract

The invention relates to a dislocation-free acetabulum lining prosthesis, which comprises a lock ring 1 and an acetabulum lining 2, wherein the lock ring 1 can adopt a water pipe throat hoop 1.1 structure, a shaft elastic retainer 1.2 structure or an adjustable steel wire fine rope 1.3 structure, the acetabulum lining 2 consists of a base body 2.1 and a high edge 2.2, the high edge 2.2 is of an circular ring structure, the inner surface of the high edge is a cylinder, and the outer surface of the high edge is a cylinder or a cone. The high edge 2.2 is provided with an axial cutting seam 2.4, and the cutting seam 2.4 penetrates through the inner and outer surfaces of the high edge 2.2. The outer surface of the high edge 2.2 is provided with an annular groove 2.3, the cross section shape of the annular groove 2.3 is a square shape or a semi-circular shape. The annular groove 2.3 is used for accommodating the lock ring 1, and is provided with an operable gap. After the lock ring 1 acts on the high edge 2.2, the condition of realizing the locking but not influencing the femoral head prosthesis rotating effect needs to meet a formula shown in the accompanying drawing.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an artificial hip joint prosthesis, in particular to a non-dislocation acetabular lining prosthesis for hip joint replacement. Background technique [0002] After the artificial hip joint prosthesis is implanted into the human body, its function is to restore the normal physiological functions of the human body. However, one of the frequent complications in modern artificial hip replacement is dislocation, and joint dislocation has also become a difficult problem for patients and doctors. For this reason, a common approach engineers have taken is to design an acetabular liner with a dislocation-resistant structure. The emergence of anti-dislocation acetabular lining prosthesis has solved the problem of partial joint dislocation, but this way of only preventing dislocation instead of avoiding dislocation still has a huge risk. [0003] The acetabular lining prosthesis with...

Claims

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Application Information

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IPC IPC(8): A61F2/34A61L27/04A61L27/16A61L27/50
Inventor 贾海涛张琳尹峰
Owner 苏州宸泰医疗器械有限公司
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