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Femoral stem prosthesis and artificial hip joint

A femoral stem and prosthesis technology, applied in the direction of the hip joint, femoral head, femoral shaft, etc., can solve the problems of metal debris, thread failure, thread damage, etc., to improve accuracy and stability, and improve anti-rotation performance Effect

Inactive Publication Date: 2018-12-21
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

For example, if the number of thread turns of the surgical installation hole on the shoulder is insufficient, or the thread is too thin, it will cause thread damage when struck vigorously, produce metal debris, and further lead to thread failure, etc., thus affecting the accuracy of femoral stem installation sex and stability

Method used

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  • Femoral stem prosthesis and artificial hip joint
  • Femoral stem prosthesis and artificial hip joint
  • Femoral stem prosthesis and artificial hip joint

Examples

Experimental program
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Effect test

Embodiment 1

[0036] See Figure 1-Figure 4 As shown, this embodiment provides a femoral stem prosthesis; figure 1 It is a first-angle structural schematic diagram of the femoral stem prosthesis provided in this embodiment, that is, the front view; figure 2 for figure 1 The partial schematic diagram of the femoral stem prosthesis shown; image 3 for figure 1 The top view of the femoral stem prosthesis shown; Figure 4 It is a schematic diagram of the three-dimensional structure of the femoral stem prosthesis provided in this embodiment.

[0037] The femoral stem prosthesis provided in this embodiment is suitable for artificial hip joints and is used for installation in the femur of the human body.

[0038] See Figure 1-Figure 4 As shown, the femoral stem prosthesis includes a stem cone 1, a stem neck 2, and a stem 5 that are connected in sequence;

[0039] The handle neck 2 is provided with a surgical installation hole; the surgical installation hole is used for connecting surgical tools and su...

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PUM

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Abstract

The invention relates to the technical field of medical instruments, in particular to femoral stem prosthesis and artificial hip joint. The femoral stem prosthesis comprises a taper shank head, a taper neck and a taper body, which are sequentially connected; a surgical installation hole is arranged on the neck of the handle. The surgical installing hole comprises a holding hole and a tapping hole,which are sequentially connected. The aperture of the surgical installing hole is set at one end of the holding hole far away from the tapping hole. Along the axial direction perpendicular to the tapping hole, the cross-sectional area of the holding hole is larger than that of the tapping hole and the cross section of the holding hole is non-circular type. The artificial hip joint comprises a femoral stem prosthesis. It is an object of the present invention to provide a femoral stem prosthesis and an artificial hip joint to improve the accuracy and stability of the femoral stem prosthesis installation.

Description

Technical field [0001] The invention relates to the technical field of medical devices, in particular to a femoral stem prosthesis and an artificial hip joint. Background technique [0002] Artificial hip joint is composed of femoral stem, acetabular cup and femoral head. Femoral stem, as the most important fixed component, has always been the focus of joint design. As for the femoral stem design, the fixed position, fixing method, cross-sectional shape, cross-sectional size, etc. are all key points in the design. However, in many design features, the design of the surgical installation hole is often ignored, or the surgical installation hole is regarded as a non-existent one. Important items. [0003] In the prior art, when the femoral stem is surgically installed, only one surgical installation hole on the shoulder can be used. Therefore, the design of the surgical installation hole on the shoulder directly affects whether the femoral stem can be implanted stably and accurately....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/32A61F2/36A61F2/46
CPCA61F2/32A61F2/36A61F2/3609A61F2/3662A61F2/4607A61F2002/3625A61F2002/3652
Inventor 贾海涛李叙章王高原张纪锋梁涛
Owner 北京安颂科技有限公司