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Novel customized acetabulum guide plate and using method thereof

A technology of acetabulum and guide plate, applied in bone drill guidance, medical science, surgery, etc., can solve problems such as judging angle and depth, and achieve accurate positioning

Pending Publication Date: 2020-05-12
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a new type of custom-made acetabular guide plate, which solves the problem that doctors need to rely on experience during the operation by guiding the angle and depth of the lower file during the custom-made individualized hip joint prosthesis operation. Problems judging angle and depth with naked eyes

Method used

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  • Novel customized acetabulum guide plate and using method thereof
  • Novel customized acetabulum guide plate and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: A new type of customized acetabular guide plate, see figure 1 , including a ring-shaped closed structure 1 , the closed structure 1 in this embodiment is a central ring 11 . The arc-shaped side wall of the central ring 11 is fixedly connected with a positioning assembly 2, and the positioning assembly 2 includes a pubic positioning plate 22, an ilium positioning plate 21, and an ischial positioning plate 23. 23 is distributed along the circumferential direction, and the pubic bone positioning plate 22, the ilium positioning plate 21 and the ischium positioning plate 23 are provided with mounting holes 4 whose axes are respectively perpendicular to them. The mounting holes 4 are used to install Kirschner wires, and the The central ring 11 is fixed at the current position of the patient's body.

[0035] The central ring 11 side wall of the ilium positioning plate 21 side is fixedly connected with a reinforcing plate 3, there are two reinforcing plates 3 and a ...

Embodiment 2

[0039] Embodiment 2: A method for using a novel customized acetabular guide plate, including the above-mentioned novel customized acetabular guide plate, and also includes the following steps:

[0040] Step 1: Before hip replacement surgery, simulate the final installation position of the prosthesis according to the patient's CT reverse three-dimensional bone model;

[0041]Step 2: The final installation position of the prosthesis determines the angle and depth of the final acetabular cup, and customizes an acetabular guide plate of appropriate size on the same plane as the end face of the center ring to make the positioning component close to the acetabular mouth, and the closed structure The inner diameter of the acetabular file is 0.8mm larger than the outer diameter of the practical acetabular file;

[0042] Step 3: After exposing the pubic bone, ilium, and ischium during the operation, fit the acetabular guide plate on the patient’s bone, fix it with Kirschner wires, and ...

Embodiment 3

[0043] Embodiment 3: A method for using a new type of customized acetabular guide plate, including the above-mentioned new type of customized acetabular guide plate, and also includes the following steps:

[0044] Step 1: Before hip replacement surgery, simulate the final installation position of the prosthesis according to the patient's CT reverse three-dimensional bone model;

[0045] Step 2: The final installation position of the prosthesis determines the angle and depth of the final acetabular cup, and customizes an acetabular guide plate of appropriate size on the same plane as the end face of the center ring to make the positioning component close to the acetabular mouth, and the closed structure The inner diameter of the acetabular file is 1.5mm larger than the outer diameter of the practical acetabular file;

[0046] Step 3: After exposing the pubic bone, ilium, and ischium during the operation, fit the acetabular guide plate on the patient’s bone, fix it with Kirschne...

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Abstract

The invention discloses a novel customized acetabulum guide plate, and belongs to the field of medical instruments. According to the technical scheme, the novel customized acetabulum guide plate is characterized by comprising a closed structure used for limiting the working position of an acetabulum file, a positioning assembly used for positioning the pubis, the ischium and the iliac bone is fixedly arranged on the closed structure, at least two mounting holes used for mounting a kirschner wire are formed in the positioning assembly, and the positioning assembly is inclined towards one direction. The effect of controlling the angle and depth of the acetabulum file is achieved.

Description

technical field [0001] The invention relates to the field of medical instruments, and more specifically, it relates to a novel customized acetabular guide plate. Background technique [0002] The hip joint is a multiaxial ball-and-socket joint composed of the femoral head of the femur and the acetabulum of the hip bone. It is an important joint connecting the trunk and lower limbs. Because the hip is the center of a series of body movements, it is prone to various diseases. For example: femoral neck fracture, femoral head necrosis, osteoarthritis of the hip, rheumatoid arthritis and ankylosing spondylitis, etc. In order to solve the damage of the hip joint, the method of hip joint replacement is usually used clinically. The femoral head is resected and the artificial femoral head is replaced. On the acetabular side, the proliferated osteophyte is removed, and the artificial acetabular cup is installed. The femoral head and the acetabular cup form a new hip joint. Hip repla...

Claims

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Application Information

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IPC IPC(8): A61B17/17
CPCA61B17/1735A61B17/1746
Inventor 解凤宝史春宝许奎雪王先泉王非凡韩敬梅
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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