Method for making customized acetabular prosthesis and auxiliary method for total hip replacement arthroplasty

A technology of acetabular prosthesis and manufacturing method, which is applied in the field of total hip replacement, can solve problems such as difficult to solve errors, achieve the effects of reducing inconsistency of milling axis, reducing surgical burden, and low surgical repair rate

Active Publication Date: 2019-09-20
GUANGDONG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0007] Limitations: Most of the existing technologies are based on optimizing the structure of the traditional hemispherical acetabular reamer and the tooth shape and distribution of the cutting teeth
Although the milling quality of the acetabular reamer can be improved to a certain extent, these technologies ...

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  • Method for making customized acetabular prosthesis and auxiliary method for total hip replacement arthroplasty

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Embodiment Construction

[0031] The present invention is further described in conjunction with the following examples.

[0032] The auxiliary method of the total hip arthroplasty of the present embodiment,

[0033] Step 1: Scan the patient's acetabular fossa using electron tomography (CT scanning), obtain the three-dimensional data of the patient's acetabulum, and import the data into reverse software, such as mimics software, and then obtain the 3D model of the patient's acetabulum;

[0034] Step 2: According to the patient's condition and the characteristics of the patient's acetabulum, the doctor formulates the part of the patient's acetabulum that needs to be removed, and then imports the 3D model of the acetabulum obtained in the first step into the software that can perform Boolean operations, such as SolidWorks, Obtain the model structure of the patient after milling by performing Boolean operations on the acetabular model;

[0035] Step 3: Import the patient's milled acetabular model obtaine...

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Abstract

The invention relates to a method for making customized acetabular prosthesis and an auxiliary method for total hip replacement arthroplasty, which relate to the technical field of the total hip replacement arthroplasty. The method comprises the followings steps: scanning the hip joint of a patient by using an electron tomography technique before an operation, obtaining three-dimensional data of the hip joint of the patient, and introducing the obtained three-dimensional data into the three-dimensional software to reconstruct an acetabular model of the patient; processing the patient's acetabular model in the three-dimensional software to obtain the acetabular model of the patient after milling; using a reverse engineering technique to obtain a prosthetic model matching the above model, and then using a 3D printing technology to print the prosthetic model to the customized acetabular prosthesis, and using the patient acetabular model to formulate a tool milling trajectory and the milling process parameters; before the operation, introducing the tool milling trajectory and the process parameters into the robot control software, and using a robot for doctor to mill the patient's acetabulum, wherein the customized acetabular prosthesis is provided for the doctor to mount the acetabulum of the patient after milling. The method can reduce the doctor's surgical burden and improve the quality of milling.

Description

technical field [0001] The invention relates to the technical field of total hip replacement, in particular to a manufacturing method of a personalized acetabular prosthesis and an auxiliary method for total hip replacement. Background technique [0002] Since the 1960s, artificial hip replacement has gradually developed in my country. It has remarkable effects in the treatment of femoral head necrosis, osteoarthritis, femoral neck fracture, traumatic arthritis, rheumatoid arthritis, benign and malignant bone tumors and other diseases, and has become the gospel of countless joint disease patients. Artificial hip replacement has gradually become the standard operation for hip diseases due to its advantages of less trauma, less bleeding, less postoperative pain, faster recovery, and reduced complications of long-term bed rest for elderly patients. Coupled with today's aging population, the number of patients with osteoarthritis is on the rise, and more and more artificial rep...

Claims

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Application Information

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IPC IPC(8): A61F2/32
CPCA61F2/32
Inventor 隋建波陈鹏伟王成勇
Owner GUANGDONG UNIV OF TECH
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