Acetabulum prosthesis and artificial hip joint

A technology of acetabular prosthesis and cup, which is applied in the field of acetabular prosthesis and artificial hip joint, which can solve the problems of skewed inner lining, unstable hand feeling, and inability of the protrusion of the inner lining to fully fit, etc., to achieve consistent improvement Sexuality, stable and consistent surgical feel, and the effect of improving the stability of the feel

Pending Publication Date: 2018-11-20
北京安颂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide an acetabular prosthesis to solve the problems existing in the prior art that the inner liner is easily distorted during operation, the hand feeling is unstable when the operation is driven in, and the protrusion of the inner liner cannot fit in the groove of the acetabular cup. Technical issues fully in

Method used

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  • Acetabulum prosthesis and artificial hip joint
  • Acetabulum prosthesis and artificial hip joint
  • Acetabulum prosthesis and artificial hip joint

Examples

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Embodiment 1

[0053] see Figure 1-Figure 7 As shown, the present embodiment provides a kind of acetabular prosthesis; figure 1 A schematic structural view of the acetabular prosthesis provided in this embodiment, figure 2 Schematic diagram of the structure of the lining of the acetabular prosthesis provided in this embodiment, wherein, figure 1 and figure 2 It is a cross-sectional view of the acetabular cup and liner, in order to clearly show the structure, the hatching is not shown; Figure 3-Figure 6 Four state diagrams of the cooperation between the acetabular prosthesis and the inner liner of the acetabular prosthesis provided in this embodiment, wherein, image 3 The state shown is that the liner is not in contact with the cup, Figure 4 For the guided state where the liner is put into the cup, no knocking is required at this time, Figure 5 For the extrusion guide state of the liner into the acetabular cup, to ensure that there is no deviation during the insertion process, I...

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Abstract

The invention relates to the technical field of medical instruments, in particular to an acetabulum prosthesis and an artificial hip joint. The acetabulum prosthesis comprises an acetabulum cup and alining. An acetabulum cup guiding segment, a stopping segment and a locking groove segment are sequentially connected to the inner surface of the acetabulum cup; a lining guiding segment, a deformation-allowable groove segment and a locking protrusion segment are sequentially connected to the outer surface of the lining; the lining and the acetabulum cup can be buckled so that the acetabulum cup guiding segment and the lining guiding segment can be matched, the stopping segment and the deformation-allowable groove segment can be matched, and the locking groove segment and the locking protrusion segment can be matched; the diameter of the locking protrusion segment is smaller than that of the locking groove segment, larger than that of the stopping segment, and smaller than or equal to thatof the acetabulum cup guiding segment. The artificial hip joint comprises the acetabulum prosthesis. The acetabulum prosthesis and the artificial hip joint aim to solve the technical problems that inthe prior art, during an operation, a lining easily deflects under beating, the hand feeling is unstable when the acetabulum prosthesis is beaten, and the protrusion of the lining can not completelybe aligned with the groove in the acetabulum cup.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an acetabular prosthesis and an artificial hip joint. Background technique [0002] After the artificial hip joint prosthesis is implanted into the human body, its service life depends on many aspects: such as the friction and wear properties of the femoral head prosthesis and acetabular prosthesis, the fixation effect of the femoral stem and acetabulum, and the lining of the acetabular cup. Locks and effects in , and more. In the case of complex stress on the hip joint, the locking and design of the liner on the acetabular cup has undergone a certain historical evolution. The latest generation of liner and acetabular cup have adopted the locking and locking method, such as Smith & Nephew's R3, Zimmer Trilogy of Trilogy, Trident of Stryker, etc.; although the above designs have achieved good clinical results in theory and practical effects, there are still certain proble...

Claims

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Application Information

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IPC IPC(8): A61F2/32A61F2/34A61F2/36
CPCA61F2/32A61F2/34A61F2/3609A61F2002/30329
Inventor 贾海涛梁涛张纪锋
Owner 北京安颂科技有限公司
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