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Femoral stem prosthesis and mounting method thereof

A technology of femoral stem and prosthesis, applied in the direction of prosthesis, femoral head, femoral shaft, etc., to achieve the effect of easy installation and disassembly, easy use and prolonging service life

Pending Publication Date: 2022-01-28
上海联影智融医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on this, it is necessary to provide a femoral stem prosthesis that closely fits the femoral medullary cavity and its installation method in view of the gap between the femoral stem prosthesis installed in the femoral medullary cavity and the inner wall of the femoral medullary cavity

Method used

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  • Femoral stem prosthesis and mounting method thereof
  • Femoral stem prosthesis and mounting method thereof
  • Femoral stem prosthesis and mounting method thereof

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention relates to a femoral stem prosthesis and a mounting method thereof. The femoral stem prosthesis can be mounted at the near end of a femoral medullary cavity, and comprises a femoral stem body, a pushing assembly and an arc-shaped shell; the femoral stem body is provided with a mounting hole; the pushing assembly is movably arranged in the mounting hole; the arc-shaped shell is located on the inner side face of the femoral stem body and arranged at the output end of the pushing assembly; and the pushing assembly can drive the arc-shaped shell to move so as to adjust the relative position and / or distance between the arc-shaped shell and the inner side face of the femoral stem body. The pushing assembly drives the arc-shaped shell to move, so that the arc-shaped shell can be in fit press fit with the inner wall of the femoral marrow cavity, the femoral stem prosthesis can be better matched with the femoral marrow cavity, and the service life of the prosthesis is prolonged.

Description

technical field [0001] The invention relates to the technical field of femoral stem prosthesis structure, in particular to a femoral stem prosthesis and an installation method thereof. Background technique [0002] The human femur is one of the most important bones in the human body, and its main function is to support the trunk and pelvis of the human body. Under the stimulation of trauma, hormone drugs or congenital reasons, the hip joint is prone to necrosis, resulting in the loss of physiological function of the human hip joint, accompanied by pain and other symptoms. [0003] In the medical field, as a clinical treatment method, artificial hip replacement is one of the most common and effective means for treating hip joint diseases and has been widely used. Artificial hip replacement refers to the implantation of a femoral prosthesis into the human body through orthopedic replacement surgery to replace the human hip joint. Specifically, the femoral head of the femoral ...

Claims

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Application Information

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IPC IPC(8): A61F2/36A61F2/46
CPCA61F2/3607A61F2/3662A61F2/3609A61F2/4601A61F2/4607
Inventor 徐寒冬马世骧贺达陈夕辉单存清
Owner 上海联影智融医疗科技有限公司
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