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Femoral Stem Components

A femoral stem and prosthesis technology, applied in the directions of prosthesis, femoral head, femoral shaft, etc., can solve the problem of destroying the original bone mass, and achieve the effect of reducing the difficulty of operation and shortening the operation time.

Active Publication Date: 2020-05-29
BEIJING AKEC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a femoral stem prosthesis assembly to solve the problem of destroying the original bone mass in the second revision operation in the prior art

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides a femoral stem prosthesis assembly. The femoral stem prosthesis assembly comprises an interlayer prosthesis and a femoral stem prosthesis, wherein the interlayer prosthesis is used for being assembled in a pulp cavity and comprises a cylindrical basal body and a first connecting part, the cylinder basal body is provided with an inner cavity, the first connecting part is arranged in the inner cavity, a synosteosis layer is formed on the outer surface of the cylindrical basal body, the femoral stem prosthesis penetrates the inner cavity and is provided with a second connecting part, and the interlayer prosthesis and the femoral stem prosthesis are detachably connected through cooperation between the first connecting part and the second connecting part. According to thetechnical scheme, the problem is effectively solved that in the prior art, in secondary revision surgery, the original bone mass is reduced.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a femoral stem prosthesis assembly. Background technique [0002] The femoral stem prosthesis is an implant used in the current orthopedic hip replacement surgery. It is suitable for the repair and reconstruction of human hip joint diseases. Together, the cup and the acetabular liner make up a hip prosthesis for ultimate joint movement. [0003] The femoral stem prosthesis is usually fixed in two ways: biotype and bone cement type. The outer surface of the biotype fits with the bone of the femoral medullary cavity to form a bone interface; the latter fills the medullary cavity with bone cement and then inserts the cemented femoral bone. In a certain period of time, as the bone cement solidifies, the bone cement femoral stem that fits it will subside for the second time or even sink multiple times, forming a stable effect. [0004] Generally speaking, bone cement implants can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/36
CPCA61F2/30723A61F2/30724A61F2/3662A61F2/3676A61F2002/30405A61F2002/30985
Inventor 杨晓杰
Owner BEIJING AKEC MEDICAL
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