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Preparation method of alloy cranial prosthesis

A technology for prosthesis and skull bone, applied in the field of medical applications, can solve the problems that the prosthesis and the bone window cannot fit well, affect the appearance of the skull prosthesis, and have high requirements on the shape of the prosthesis, and achieve the realization of microstructure and mechanical properties. control, excellent biological properties, and reduction of the risk of soft tissue irritation and injury

Inactive Publication Date: 2016-08-24
刘国远 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a problem that has always existed in this application is that it is impossible to provide a metal restoration that completely matches the size and shape of the patient's skull defect, especially for more complex defects, which have higher requirements for the shape of the restoration
In addition, the prosthetic preparation method in the prior art has improved the quality of the prosthetic prosthesis, but the manufacturing cycle is long, the cost is high and the flexibility is poor. It is difficult to guarantee the completion of debridement and repair in one operation with the current preparation methods
Indentation, wrinkling, springback and edge warping are unique forming defects in multi-point forming. Indentation and wrinkling affect the appearance of cranial prosthesis, and springback will make the size of the prosthesis inconsistent with the size of the bone window. Causing the prosthesis to collapse or become loose
Edge warping will make the restoration and bone window not fit well, affecting the restoration quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing an alloy brain and skull prosthesis, comprising the following steps:

[0028] (1) Obtain image data of the patient's skull by means of computerized tomography (CT). The scanning distance of the computerized tomography technology is 1.7 mm. The obtained image data is stored in a computer-readable medium in a standard DICOM file format to obtain the contour of the skull defect;

[0029] (2) Import the CT image data in DICOM format into the digital three-dimensional medical image interactive processing software Mimics for data reading, segmentation and three-dimensional reconstruction, select any pixel point of the skull image after segmentation, and then compare with this pixel point The connected three-dimensional areas are temporarily recorded, and the grayscale threshold range for extracting the skull is 2055; after the three-dimensional shaping of the skull, the mirror function of Mimics is used to symmetrically copy the healthy side of the skull...

Embodiment 2

[0041] A method for preparing an alloy brain and skull prosthesis, comprising the following steps:

[0042] (1) Obtain image data of the patient's skull by means of computerized tomography (CT). The scanning distance of the computerized tomography technique is 1.9 mm. The obtained image data is stored in a computer-readable medium in a standard DICOM file format to obtain the contour of the skull defect;

[0043] (2) Import the CT image data in DICOM format into the digital three-dimensional medical image interactive processing software Mimics for data reading, segmentation and three-dimensional reconstruction, select any pixel point of the skull image after segmentation, and then compare with this pixel point The connected 3D areas are temporarily recorded, and the grayscale threshold range for extracting the skull is 505; after the 3D skull is formed, the mirror function of Mimics is used to symmetrically copy the healthy side of the skull to the defect site, and then the tra...

Embodiment 3

[0055] A method for preparing an alloy brain and skull prosthesis, comprising the following steps:

[0056] (1) Obtain image data of the patient's skull by means of computerized tomography (CT). The scanning distance of the computerized tomography technique is 1.8 mm. The obtained image data is stored in a computer-readable medium in a standard DICOM file format to obtain the contour of the skull defect;

[0057] (2) Import the CT image data in DICOM format into the digital three-dimensional medical image interactive processing software Mimics for data reading, segmentation and three-dimensional reconstruction, select any pixel point of the skull image after segmentation, and then compare with this pixel point The connected 3D areas are temporarily recorded, and the grayscale threshold range for extracting the skull is 1505; after the 3D skull is formed, the mirror function of Mimics is used to symmetrically copy the healthy side of the skull to the defect site, and then use th...

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Abstract

The invention relates to a preparation method of an alloy cranial prosthesis. The method mainly comprises the steps of acquiring skull image data of a patient, generating a skull model by means of three-dimensional reconstruction, obtaining a two-dimensional prosthesis and carrying out shaping production to obtain the alloy cranial prosthesis. The preparation method provided by the invention covers the shortage of the traditional preparation technology, and is used for efficiently preparing the alloy cranial prosthesis which has a complicated shape and can meet the biocompatibility and mechanical compatibility requirements of a medical material. Furthermore, the preparation method is lower in cost, high in manufacturing accuracy and high in molding efficiency.

Description

technical field [0001] The invention belongs to the field of medical application, and is applied to medical specialties such as neurosurgery, neurology, and skull repair, and relates to a method for processing and manufacturing an alloy restoration, in particular to a preparation method for an alloy restoration of the brain and skull. Background technique [0002] In the field of neurosurgery and neurology, the skull is resected and repaired in the event of trauma or disease such as head trauma, intracranial infection or tumor, cerebral edema or increased intracranial pressure, and cranial deformity. In order to restore the airtightness of the cranial cavity and prevent further neurological symptoms after skull defect, skull defect repair is required. [0003] Commonly used cranial prosthesis materials in the prior art include non-metallic materials and metallic materials. Non-metallic materials include plexiglass, bone cement and composite materials. plexiglass is hard, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06T7/00G06T7/60G06T17/00B22F3/105
CPCG06T17/00G16H50/50B22F2998/10G06T2210/41G06T2207/10081G06T2200/04G06T2200/08B22F10/00B22F10/322B22F10/34B22F10/36B22F10/28B22F12/41B22F10/80B22F1/0003B22F9/023B22F3/04B22F1/09B22F10/20Y02P10/25B22F1/00
Inventor 刘国远
Owner 刘国远
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