Additive manufacturing and processing method of polyetheretherketone skull implant

A technology of polyether ether ketone and additive manufacturing, which is applied in the directions of additive processing, manufacturing auxiliary devices, processing data acquisition/processing, etc., can solve the problems of insufficient process parameters and poor mechanical properties, so as to improve the utilization rate of materials, The effect of low processing cost and strong mechanical properties

Inactive Publication Date: 2019-09-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a polyetheretherketone cranial implant additive manufacturing processing method, using fused deposition modeling technology to prepare polyetheretherketone material skull implants, to solve the current polyetheretherketone material through additive manufacturing Manufacturing method to prepare skull implants due to insufficient process parameters and poor mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The additive manufacturing processing method of polyether ether ketone skull implants, the preparation steps are as follows:

[0028] 1) Using CT, MRI and other medical instruments to obtain medical image data of the patient's skull to be implanted.

[0029] 2) Input the medical image data of the patient to be implanted in step 1 into the commercial software Mimics on the computer, process the medical data, use its reverse function to realize the 3D digital model of the skull implant, and convert it into 3D STL format files that can be recognized by the printing system.

[0030] 3) Import the STL format file obtained in step 2 into the commercial software IntamSuite, which is the slicing software attached to the 3D printer, set the printing layer height to 0.15mm, fill density to 100%, printing speed to 60mm / s, and open Cool the fan, generate supports, and obtain the Gcode format file of the skull model.

[0031] 4) Prepare a polyetheretherketone wire with a diameter ...

Embodiment 2

[0036] The additive manufacturing processing method of polyether ether ketone skull implants, the preparation steps are as follows:

[0037] 1) Using CT, MRI and other medical instruments to obtain medical image data of the patient's skull to be implanted.

[0038] 2) Input the medical image data of the patient to be implanted in step 1 into the commercial software Mimics on the computer, process the medical data, use its reverse function to realize the 3D digital model of the skull implant, and convert it into 3D STL format files that can be recognized by the printing system.

[0039] 3) Import the STL format file obtained in step 2 into the commercial software IntamSuite, which is the slicing software attached to the 3D printer, set the printing layer height to 0.15mm, fill density to 100%, printing speed to 60mm / s, and open Cool the fan, generate supports, and obtain the Gcode format file of the skull model.

[0040] 4) Prepare a polyetheretherketone wire with a diameter ...

Embodiment 3

[0045] The additive manufacturing processing method of polyether ether ketone skull implants, the preparation steps are as follows:

[0046] 1) Using CT, MRI and other medical instruments to obtain medical image data of the patient's skull to be implanted.

[0047] 2) Input the medical image data of the patient to be implanted in step 1 into the commercial software Mimics on the computer, process the medical data, use its reverse function to realize the 3D digital model of the skull implant, and convert it into 3D STL format files that can be recognized by the printing system.

[0048]3) Import the STL format file obtained in step 2 into the commercial software IntamSuite, which is the slicing software attached to the 3D printer, set the printing layer height to 0.15mm, fill density to 100%, printing speed to 60mm / s, and open Cool the fan, generate supports, and obtain the Gcode format file of the skull model.

[0049] 4) Prepare a polyetheretherketone wire with a diameter o...

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Abstract

The invention discloses an additive manufacturing and processing method of a polyetheretherketone skull implant. The method comprises the following steps of acquiring medical image data of a skull to-be-implanted part of a patient, performing Mimics data processing to reversely construct a three-dimensional digital model of the skull implant, and acquiring a Gcode format file of a skull model; and preparing a polyether-ether-ketone wire rod, setting parameters of a commercial 3D printer, printing, taking out a skull piece, and preserving heat. The integral forming of the skull implant is realized through forming process parameters adopted by a melt deposition forming technology based on polyetheretherketone materials. Compared with that of traditional subtractive manufacturing such as milling, the material utilization rate can be improved, and the material loss can be reduced. Compared with that of a selective laser sintering method, the processing cost is low, the environment is protected, and the manufactured skull implant is high in mechanical property.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to an additive manufacturing processing method of a polyetheretherketone skull implant. Background technique [0002] Polyetheretherketone (PEEK for short) is mainly made of 4,4'-difluorobenzophenone, hydroquinone, and anhydrous sodium carbonate as raw materials, and diphenyl sulfone as a solvent. It is prepared by nucleophilic polycondensation at 300-340°C. It is a semi-crystalline, thermoplastic special engineering plastic with ultra-high performance. [0003] Polyether ether ketone materials have been increasingly used in the clinical medical field. The advantages of applying polyether ether ketone materials to the field of skull manufacturing are as follows: [0004] 1. Excellent mechanical properties. Compared with titanium alloy, its elastic modulus is very close to that of human bone; [0005] 2. Good biocompatibility, which is conducive to cell a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/386B33Y50/00
CPCB29C64/386B33Y50/00
Inventor 陈飞陈骥
Owner SHANGHAI JIAO TONG UNIV
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