Acetabulum prosthesis

An acetabular prosthesis and acetabular technology, applied in the field of acetabular prosthesis, can solve the problems of difficult processing of acetabular outer cup and inner lining, and achieve the effect of reducing processing difficulty

Inactive Publication Date: 2015-07-29
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide an acetabular prosthesis to solve the problem that the tapered surface of the acetabular outer cup and inner liner is difficult to process in the prior art

Method used

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  • Acetabulum prosthesis
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Embodiment Construction

[0021] 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.

[0022] Such as figure 1 As shown, the acetabular prosthesis of this embodiment includes: an acetabular outer cup 10 and an inner liner 20 . The inner surface of the acetabular outer cup 10 is provided with an internal thread 11 , and the outer surface of the inner liner 20 is provided with an external thread 21 that cooperates with the internal thread 11 . The acetabular outer cup 10 and the inner liner 20 are connected together through the internal thread 11 and the external thread 21 .

[0023] Applying the technical solution of this embodiment, the acetabular outer cup 10 and the inner liner 20 are connected together through the inner thread 11 and the outer thread 21. The above connection...

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Abstract

The invention provides an acetabulum prosthesis. The acetabulum prosthesis comprises an acetabulum outer cup and a lining, wherein an inner thread is arranged on the inner surface of the acetabulum outer cup; the outer surface of the lining is provided with an outer thread matched with the inner thread; the acetabulum outer cup is connected with the lining through the inner thread and the outer thread. According to the technical scheme, the problems in the prior art that the machining difficulty of tapered surfaces of the acetabulum outer cup and the lining is great are effectively solved.

Description

technical field [0001] The invention relates to the technical field of artificial prosthesis, in particular to an acetabular prosthesis. Background technique [0002] The existing locking form of the outer cup of the acetabular prosthesis and the inner liner is mainly in the form of a conical surface matching to form a conical surface locking. While the tapered surface is locked, a snap ring is added inside to fix the lining to prevent it from coming out. Specifically, anti-rotation grooves are made on the end face of the outer cup and the outer edge of the inner liner to prevent the inner liner from being pulled out due to circumferential rotation. At the same time, after the surface of the outer cup of the acetabular prosthesis is bonded to the bone, in order to initially stabilize the surface of the acetabular prosthesis and the outer cup, screws are used to fix the outer cup of the acetabular prosthesis on the bone surface through the threaded holes on the outer cup. o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/34
Inventor 杨晓杰
Owner BEIJING AKEC MEDICAL
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