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Manufacturing method of personalized acetabular prosthesis and auxiliary method for total hip replacement

A technology of acetabular prosthesis and manufacturing method, which is applied in the field of total hip replacement, can solve problems such as difficult errors, and achieve the effects of reducing inconsistencies in milling axes, reducing surgical burden, and improving milling quality

Active Publication Date: 2022-02-08
GUANGDONG UNIV OF TECH
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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 have not changed the existing operation method, and the operation is still performed manually by the doctor. This operation method requires high surgical experience and physical strength of the doctor. Requirements, at the same time, it is still difficult to solve the error caused by manual operation during milling

Method used

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  • Manufacturing method of personalized acetabular prosthesis and auxiliary method for total hip replacement

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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 manufacturing method of a personalized acetabular prosthesis and an auxiliary method for total hip replacement, which relate to the technical field of total hip replacement. 3D data, and import the obtained 3D data into the 3D software to reconstruct the patient's acetabular model; process the patient's acetabular model in the 3D software to obtain the milled model of the patient's acetabular; use reverse engineering technology to match the model The prosthesis model, and then use 3D printing technology to print the prosthesis model into a personalized acetabular prosthesis, use the patient's acetabular model to formulate the tool milling trajectory and milling process parameters; before the operation, the tool milling trajectory established in step 4 And process parameters are imported into the manipulator control software, the manipulator is used for the doctor to mill the patient's acetabulum, and the personalized acetabular prosthesis is used for the doctor to install the milled patient's acetabulum. This method can reduce the doctor's surgical burden and improve the milling quality.

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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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00A61F2/32
CPCA61F2/32
Inventor 隋建波陈鹏伟王成勇
Owner GUANGDONG UNIV OF TECH
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