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 t

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

Examples

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[0038] The technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, the patient will be in the lateral decubitus position during the operation. The terminology, axis and surface of the human body are subject to the anatomical posture. Those who are near the skull are upper, and those who are near the feet are lower. The one near the ventral surface is the front, and the one near the back is the back. The closer to the median surface of the human body is the inside, and the farther is the outside. The left and right, vertical, horizontal and center of the limbs are the same as general concepts. The vertical axis is the vertical axis perpendicular to the horizontal plane and parallel to the long axis of the human body. The sagittal axis is the axis parallel to the horizontal plane in the front and back direction and perpendicular to the long axis of the human body. The coronal axis (f...

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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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