Femoral stem prosthesis

A femoral stem and prosthesis technology, applied in the direction of femoral head, hip joint, joint implants, etc., can solve problems such as femoral fractures and shape matching

Pending Publication Date: 2022-04-26
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention proposes a femoral stem prosthesis, which solves the problem that the femoral stem prosthesis in the related art cannot match the shape of the human femur and thus easily causes femoral fractures

Method used

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  • Femoral stem prosthesis
  • Femoral stem prosthesis
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Examples

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all involve the protection scope of the present invention.

[0025] like Figure 1 ~ Figure 4 As shown, this example proposes

[0026] A femoral stem prosthesis, comprising a femoral stem 1 and a femoral neck 2 arranged on the femoral stem 1, the femoral stem 1 has a radian, the top end of the femoral stem 1 has an anteversion angle A relative to the bottom end of the femoral stem 1, and the anteversion angle A 12°-15°, the femoral stem 1 is divided into a first end 101 and a second end 102, the first end 101 is the femoral neck 2, ...

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Abstract

The invention relates to the technical field of medical instruments, and provides a femoral stem prosthesis which comprises a femoral stem and a femoral neck arranged on the femoral stem, the femoral stem has radian, the top end of the femoral stem has a forward inclination angle A relative to the bottom end of the femoral stem, the forward inclination angle A is 12-15 degrees, the femoral stem is divided into a first end and a second end, the first end is the femoral neck, and the second end is the femoral neck. The arrangement direction of the femoral neck is perpendicular to the top end face of the first end, the first end is provided with a first groove, and the contact area of the femoral stem and the human femur is increased through the first groove. By means of the technical scheme, the problem that in the prior art, a femoral stem prosthesis cannot be matched with the shape of the human body femur, and consequently femur fracture is likely to be caused is solved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a femoral stem prosthesis. Background technique [0002] The artificial hip joint prosthesis imitates the structure of the human hip joint. The stem of the prosthesis is inserted into the medullary cavity of the femur, and the head is rotated with the socket or the metal cup of the prosthesis to realize the flexion, extension and movement of the femur. The artificial hip joint is generally divided into four parts, namely the femoral stem prosthesis, ball head, liner and acetabular cup. The femoral stem prosthesis is used to insert into the bone marrow for fixation. [0003] The femoral stem prosthesis in the prior art generally consists of a femoral neck and a femoral stem. In order to be able to penetrate into the femur and adapt to use, the femoral stem is straight, and there is a certain angle between the femoral neck and the femoral stem. The bone has a certain curva...

Claims

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Application Information

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IPC IPC(8): A61F2/36
CPCA61F2/3662A61F2/367
Inventor 韩永台刘思凯韩子钰刘勃刘泽明张秉时
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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