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Method for manufacturing heart structure through rollover process of 3D printing technology

A heart structure, 3D printing technology, applied to the improvement of process efficiency, additive manufacturing, manufacturing auxiliary devices, etc., can solve the problems of lack of medical education models of cardiac changes, lack of heart practice suturing, resection, replacement capabilities, etc., to achieve the finished heart The effect of high yield, high yield and high precision

Inactive Publication Date: 2021-11-02
东莞雀鹏医疗信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current heart model product market lacks a product of the internal structure of the heart, and even lacks a medical education model of cardiac changes. Because the traditional heart structure is mainly a wooden model, it lacks the ability to practice suturing, resection, and replacement of the heart.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The invention discloses a method for manufacturing a heart structure using a mold-turning process of 3D printing technology. The technical solution adopted includes the following steps:

[0029] Step 1: scan the internal structure of the heart, enhanced CT and MRI scans;

[0030] Step 2: Extract heart structure data for subsequent heart modeling;

[0031] Step 3: Use engineering software and 3D image processing software to engineer the heart model, thicken and divide the outer shell of the heart, and thicken and divide the inner shell of the heart to facilitate subsequent use and understand the structure between them;

[0032] Step 4: Import the three-dimensional STL data of the heart made in step 3 into the 3D printer for printing the heart and the heart template. The printing accuracy is 0.01mm. The inner and outer walls will retain the cavity and complete the structural fixation, leaving a gap for easy removal;

[0033] Step 5: Polish the mold to avoid the surface o...

example 10

[0036] Step 8: Mix the silicone rubber with the catalyst, adjust the silicone rubber model according to the data of ventricular muscle, atrial muscle, valve and coronary artery, fully stir and mix and draw a vacuum to maintain the best curing environment for the silicone, and place it for several hours to increase the viscosity of the product and reduce it. Fluidity, in which silica gel and catalyst achieve the best volume ratio of 10:1;

[0037] Step 9: The reserved structure of the heart is filled. As the heart cavity is evacuated to form a negative pressure, the silicone material will gradually fill the entire heart according to the pressure value, until finally the entire heart model is evenly filled to form a complete heart structure, keeping the silicone most The best curing environment is at room temperature of 20°C and humidity of 45%;

[0038] Step 10: 12 hours to complete the curing of the silicone rubber of the blood vessel wall and the silicone rubber of the blood ...

Embodiment 2

[0048] The difference between this embodiment and embodiment 1 is that it includes the following steps:

[0049] Step 1: scan the internal structure of the heart, enhanced CT and MRI scans;

[0050] Step 2: extract heart structure data;

[0051] Step 3: Use engineering software and 3D image processing software to engineer the heart model, thicken and segment the outer shell of the heart, and thicken and segment the inner shell of the heart;

[0052] Step 4: Import the three-dimensional STL data of the heart produced in step 3 into the 3D printer for heart printing and heart template printing. The printing accuracy is 0.02mm. The inner and outer walls will retain the cavity and complete the structural fixation;

[0053] Step 5: Polish the mold;

[0054] Step 6: Fill the inner wall of the heart with paraffin. After the paraffin is solidified, remove the inner wall mold to form the inner wall of the paraffin heart; use purple light to solidify the silica gel to form the inner w...

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Abstract

The invention discloses a method for manufacturing a heart structure by using a rollover process of a 3D printing technology, and aims to solve the problems that only the internal structure of the heart can be displayed and a later heart model rollover technology is lacked in the prior art, so that a heart practice medical teaching aid is manufactured to meet various surgical operations of the internal structure of the heart and coronary artery stent and bridging technology practice; and human heart structure real data are obtained through heart structure medical imaging and data digitization, heart three-dimensional data structure data are subjected to 3D printing to manufacture a heart model or a heart template, the toughness and thickness of heart valves and the shape and thickness of coronary arteries are achieved. According to the heart silica gel filling, all reserved template gaps can be uniformly filled through negative pressure attraction silica gel according to product requirements, compared with a traditional manufacturing method, the rate of finished products is high, and the internal structure shape of the heart is closer to the real heart structure of a human body; and the artificial heart can be used for simulating and practicing clinical operation skills such as heart cutting, sewing, plugging, coronary artery stenting and bridging.

Description

technical field [0001] The invention relates to the technical field of heart structural overmolding, in particular to a method for manufacturing a heart structure by using the overmolding process of 3D printing technology. Background technique [0002] Cardiovascular disease is the disease with the highest invention rate and mortality rate in the world today. In China, cardiovascular disease leads to the highest mortality rate. Cardiac structural lesions mainly include congenital heart disease, various types of atrial defect, ventricular defect and various types of dysplasia. As China enters an aging society, the number of patients requiring cardiac surgery for elderly heart degenerative diseases (including valvular insufficiency and calcification) will increase year by year, and a large number of cardiac surgeons need a heart structure product for practice. [0003] With the improvement of social level and the change of diet structure, the incidence of coronary artery scler...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/28B29C64/386B33Y50/00B22F10/80B33Y80/00B33Y10/00
CPCG09B23/28B29C64/386B33Y50/00B22F10/80B33Y80/00B33Y10/00Y02P10/25
Inventor 孟祥鹏赵彩云孟凡廷赵丹
Owner 东莞雀鹏医疗信息科技有限公司
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