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Complete locating device for total hip arthroplsty

A total hip replacement and positioning device technology, applied in medical science, surgical saw, bone drill guidance, etc., can solve the problem of unstable acetabular placement of the acetabular prosthesis, and reduce the chance and degree of loosening or subsidence. Prevents abnormal gait and ensures stability

Pending Publication Date: 2017-09-12
汤向阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prevent the acetabular from being over-reamed, worn-through, too much acetabular roof, and reamed bone to remove too much, resulting in high or unstable placement of the acetabular prosthesis and difficulty in acetabular bearing.

Method used

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  • Complete locating device for total hip arthroplsty
  • Complete locating device for total hip arthroplsty
  • Complete locating device for total hip arthroplsty

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Experimental program
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Embodiment Construction

[0038] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, the patient takes a lateral position during the operation, and the terms, axes and planes of each orientation of the human body are based on the anatomical posture. Those near the cranium are upper, and those near the feet are lower. The one closest to the ventral surface is the front, and the one closest to the back is the rear. The one that is relatively closer to the median plane of the human body is the inner side, and the one that is farther away is the outer side. The left and right, vertical, horizontal and central of the limbs are the same as the general concept. The vertical axis is the axis that is perpendicular to the horizontal plane in the up and down direction and parallel to the long axis of the human body. The sagittal axis is the axis parallel to the horizontal plane in the anteroposterior directi...

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PUM

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Abstract

The invention discloses a complete set of positioning device for artificial total hip joint replacement, which belongs to the field of medical equipment. The positioning device is conducive to the accurate osteotomy of the femoral neck with the oscillating saw, the accurate positioning of the use direction of the acetabular file, the square head bone knife, and the medullary cavity file, and the insertion of the femoral prosthesis into the femoral marrow at the original position and original angle. The cavity is beneficial to preserve the femoral calcar and the length of the femoral neck, which is conducive to the correct placement of the acetabular cup, shortens the operation time, reduces intraoperative bleeding, improves the success rate of the operation, relieves joint pain, corrects deformity, restores and improves joint movement Function.

Description

technical field [0001] The invention relates to a positioning device, in particular to a complete positioning device for artificial total hip joint replacement, which belongs to the field of medical equipment. Background technique [0002] Total hip arthroplasty (THA) is mainly suitable for patients with the following diseases that cause pain and dysfunction and significantly affect the quality of life. These diseases mainly include: primary or secondary advanced arthritis; avascular necrosis of the femoral head Ficat stage 3, 4; acetabular dysplasia or congenital dislocation of the hip; ankylosing spondylitis or rheumatoid arthritis; elderly subcapital or Grdan type 4 fractures of the femoral neck with displacement, or patients who cannot cooperate after fixation Nonunion of femoral neck fractures; proximal femoral or acetabular tumors; quiescent suppurative or tuberculous arthritis of the hip; ankylosis of the hip especially when in a nonfunctional position, or Hip fusion...

Claims

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Application Information

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IPC IPC(8): A61B17/15A61B17/16A61B17/17
CPCA61B17/15A61B17/1657A61B17/1659A61B17/1666A61B17/1668A61B17/1732A61B17/1735A61B17/175
Inventor 汤向阳潘亚林陈可夫姚欣延杜冬生高尚
Owner 汤向阳
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