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A preparation method of acetabular side model and guide plate based on three-dimensional reconstruction technology

A technology of three-dimensional reconstruction and three-dimensional model, applied in the acetabular fossa, hip joint, medical science and other directions, to achieve the effect of reducing failure rate, shortening operation time, and reducing operation damage

Active Publication Date: 2018-07-20
XIANGYA HOSPITAL CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

It solves the problems of many doctors, especially for patients with complex and serious hip joint deformities, such as the determination of the true socket of DDH during surgery, and the problems of acetabular screws

Method used

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  • A preparation method of acetabular side model and guide plate based on three-dimensional reconstruction technology
  • A preparation method of acetabular side model and guide plate based on three-dimensional reconstruction technology
  • A preparation method of acetabular side model and guide plate based on three-dimensional reconstruction technology

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preparation example Construction

[0046] Such as figure 1 As shown, a preparation method of acetabular side model and guide plate based on three-dimensional reconstruction technology includes the following steps:

[0047] Step 1. After processing the preoperative 3D CT data of the hip joint, a digital 3D data model is established to reconstruct the 3D bony structure of the acetabular side and restore the original state of the disease.

[0048] Among them, the specific operation of establishing a digital 3D data model after processing the 3D CT data of the hip joint is: image import→threshold division (specific tissue extraction)→3D reconstruction model generation→computer-aided design (measurement, design guide plate, titanium plate veneer) , personalized implants, etc.) → 3D printing;

[0049] details as follows:

[0050] 6) Image import:

[0051] Using 3D reconstruction software such as mimics and E-3D, it supports DICOM standard thin-slice scanning images. After the patient has passed the CT or MRI exam...

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Abstract

The invention discloses a method for preparing an acetabulum side model and a guide plate based on a three-dimensional reconstruction technology. The method comprises the following steps: firstly, establishing a digital three-dimensional data model after three-dimensional CT (Computed Tomography) data of a preoperative hip joint of a patient is processed, reconstructing a three-dimensional bony structure of an acetabulum side, and restoring an original state of a disease; secondly, making an acetabulum mill filing and acetabulum screw embedding scheme by analyzing an acetabulum position, estimating an acetabulum state, clearing the mass of bones around an acetabulum and calculating the thickness of the bones around the acetabulum, and performing three-dimensional modelling on the guide plate and the model; thirdly, preparing a preoperative acetabulum side osseous model, an intra-operative grinding mortar guide plate, an intra-operative acetabulum screw guide plate and a postoperative acetabulum side osseous model by utilizing a 3D (Three-dimensional) printer; fourthly, integrating and inspecting the guide plate and the model, redesigning if the guide plate and the model are unqualified, and disinfecting the guide plate and the model and putting the guide plate and the model into an operation if the guide plate and the model are qualified.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional reconstruction of bones, and relates to a method for preparing an acetabular side model and a guide plate based on three-dimensional reconstruction technology. Background technique [0002] Three-dimensional reconstruction refers to the establishment of mathematical models suitable for computer representation and processing of three-dimensional objects. [0003] Artificial joint replacement refers to the use of metal, high molecular polyethylene, ceramics and other materials to make artificial joint prostheses according to the shape, structure and function of human joints, and implant them into the human body through surgical techniques to replace the function of diseased joints to achieve relief. Joint pain, the purpose of restoring joint function. [0004] 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50A61F2/30A61F2/32
CPCA61F2/34A61F2/28A61F2002/30001
Inventor 钟达胡懿郃王成功廖前德
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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