Hip joint prosthesis for osteolysis treatment

A hip joint prosthesis and osteolysis technology, applied in the direction of hip joints, prostheses, joint implants, etc., can solve the problems of difficult installation of hip joint prosthesis, difficult operation of ball head and femoral stem fixation, etc.

Pending Publication Date: 2021-09-10
BEIJING LIDAKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technical solutions, the inventor found that: since there is a notch on the femur for the rotation of the ball head, the notch is larger than the ball head, so when adjusting the positional relationship between the ball head and the acetabular cup, the femur needs to be moved in time. The stem is fixed on the femur to prevent the ball head from moving along the axial direction of the femoral stem. It is difficult to fix the position of the ball head and the femoral stem, that is, the installation of the hip joint prosthesis is more difficult.

Method used

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  • Hip joint prosthesis for osteolysis treatment
  • Hip joint prosthesis for osteolysis treatment
  • Hip joint prosthesis for osteolysis treatment

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Embodiment Construction

[0028] The application will be described in further detail below in conjunction with the accompanying drawings.

[0029] refer to figure 1 and figure 2 , the present application provides an osteolytic ilium fixation prosthesis, including a fixation plate 1 attached to the surface of the ilium 13 and a plurality of fixation screws 3 for fixing the fixation plate 1 on the ilium 13; wherein, The fixing plate 1 is customized according to the shape of the surface of the patient's ilium 13 through 3D printing technology. The fixing screw 3 penetrates the fixing plate 1 and is screwed into the inside of the ilium 13, thereby realizing the fixation between the fixing plate 1 and the ilium 13.

[0030] refer to figure 1 and image 3 , the surface of the fixed plate 1 away from the ilium 13 is integrally formed with a ball head 10, the ball on the ball head 10 is hinged with a hemispherical shell-shaped acetabular cup 7, the opening of the acetabular cup 7 faces the fixed plate 1, a...

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Abstract

The invention relates to a medical instrument, in particular to an osteolysis therapy hip joint prosthesis which is characterized by comprising a fixing plate. A ball head is integrally formed on the fixing plate, an acetabular cup is spherically hinged to the ball head, and the acetabular cup is arranged on the side, away from the fixing plate, of the ball head; a femoral stem is integrally formed on the outer surface of the acetabular cup; the purposes that the acetabular cup and the ball head can be fixed conveniently, and the hip joint prosthesis can be installed conveniently are achieved.

Description

technical field [0001] The present application relates to a medical device, in particular to a hip joint prosthesis for treating osteolysis. Background technique [0002] Osteolysis, also known as massive osteolysis, is a rare bone lesion characterized by massive osteolysis; if there are pathological fractures and dysfunction in the lesion, internal fixation, bone cement reconstruction, sham Surgical treatments such as body replacement surgery. [0003] When the ilium is pathologically fractured due to osteolysis, the steel plate or fixation plate is fixed on the ilium through metal screws or fixation screws; The ball is hinged with a spherical femoral head, namely the ball head, on which the femoral stem inserted into the femoral medullary cavity is fixed; further, in order to allow the ball head to rotate freely inside the acetabular cup, it is necessary to cut the end of the femur close to the ilium The bone is to open a large gap for the ball head to rotate freely insi...

Claims

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Application Information

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IPC IPC(8): A61F2/34A61F2/36
CPCA61F2/34A61F2/3609A61F2/3601A61F2002/30662A61F2002/30476A61F2002/30507A61F2002/30517
Inventor郝改平
OwnerBEIJING LIDAKANG TECH