CN113593387A - Method for manufacturing heart structure by using rollover process of 3D printing technology - Google Patents
Method for manufacturing heart structure by using rollover process of 3D printing technology Download PDFInfo
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- CN113593387A CN113593387A CN202110849838.8A CN202110849838A CN113593387A CN 113593387 A CN113593387 A CN 113593387A CN 202110849838 A CN202110849838 A CN 202110849838A CN 113593387 A CN113593387 A CN 113593387A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/80—Data acquisition or data processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a method for manufacturing a heart structure by using a rollover process of a 3D printing technology, which aims to solve the problems that the prior art can only display the internal structure of a heart and is lack of a later-stage heart model rollover technology, so that a heart exercise medical teaching aid is manufactured, various operation operations of the internal structure of the heart and coronary artery stent and bridging technology exercise are met, real data of the heart structure of a human body are obtained by imaging and digitizing the data of the heart structure medical science, 3D printing is carried out on the heart three-dimensional data structure data to manufacture a heart model or a heart template, the toughness and thickness of a heart valve and the shape and thickness of a coronary artery are realized, all reserved template gaps can be uniformly filled by filling heart silica gel through negative pressure gravitation silica gel according to product requirements, the yield is higher compared with that of the traditional manufacturing method, the shape of the internal structure of the heart is closer to the real heart structure of the human body, and an artificial heart can finish simulation exercise heart cutting, Suturing, plugging, coronary artery stent and bridging and other clinical operation skills.
Description
Technical Field
The invention relates to the technical field of heart structural rollover, in particular to a method for manufacturing a heart structure by using a rollover process of a 3D printing technology.
Background
The cardiovascular diseases are the highest in invention rate and death rate in the world nowadays, the death rate is the top in the Chinese cardiovascular diseases, the heart structural lesions mainly comprise various types of atrial defects, ventricular defects and various types of dysplasia of congenital heart diseases, as China enters an aging society, patients with the need of heart surgical operations such as senile heart degenerative lesions (including valvular insufficiency and calcification) and the like are increased year by year, and a large number of heart surgeons need to practice a heart structural product.
With the improvement of social level and the change of dietary structure, the incidence rate of coronary artery thick sclerosis is more and more younger, the coronary artery degenerative disease of the aged social old patients causes huge base number of coronary stenosis personnel, and finally coronary artery stent and coronary artery bridge are needed to be carried out.
The current heart model product market lacks an internal heart structure product, and further lacks a medical education model for heart diseases, and because the traditional heart structure is mainly a wooden model, the heart lacks the ability of practicing suturing, excision and replacement.
Chinese patent CN201410624154.8 discloses a method for making a materialized heart 3D model capable of realizing an internal and external structure, the technical scheme is that the invention relates to a method for making a materialized heart 3D model capable of realizing an internal and external structure of a heart, which can overcome the defects of the prior art, 1, scanning a heart part of a patient to obtain medical image data and form a DICOM file; 2. identifying and storing the DICOM file in the step 1 by using the Mimics software to form an mcs file identified by the computer; 3. extracting different data templates in the software; 4. processing the template with the cavity structure or incomplete image or unclear boundary in the step 3 to make the template clear and complete; 5. adding, deleting, separating or combining the templates to form a required template; 6. processing the 3D image formed in the step 5 to enable the exterior of the 3D image to be smooth and the integrity of an internal image template to form an STL file; 7. and (4) importing the data processed in the step (6) into a 3D laser printer to print out the heart model.
The heart internal structure can only be displayed, and the later-stage heart model rollover technology is lacked, so that a heart exercise medical teaching aid is manufactured, and various surgical operations of the heart internal structure and the technical exercises of coronary artery stents and bridges are met.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses a method for manufacturing a heart structure by using an overmolding process of a 3D printing technology, which adopts the technical scheme that the method comprises the following steps:
step 1: scanning the internal structure of the heart, enhancing CT and MRI scanning;
step 2: extracting cardiac structure data;
and step 3: engineering processing is carried out on the heart model by using engineering software and three-dimensional image processing software, the outer shell of the heart is thickened and divided, and the inner shell of the heart is thickened and divided;
and 4, step 4: importing the cardiac three-dimensional STL data manufactured in the step 3 into a 3D printer for cardiac printing and cardiac template printing, wherein the printing precision is 0.01-0.03 mm, and the inner and outer walls keep the lacuna and complete structure fixation;
and 5: polishing the mold;
step 6: filling the inner wall of the heart with paraffin, and removing the inner wall mold after the paraffin is solidified to form the inner wall of the paraffin heart; ultraviolet light irradiation is adopted to solidify the silica gel to form the inner wall of the paraffin heart, the ultraviolet light solidified silica gel is the silica gel which utilizes the photosensitivity of a photoinitiator, is photoinitiated under the irradiation of ultraviolet light to form an excited ecological molecule, and is decomposed into free radicals or ions, so that unsaturated organic matters are subjected to chemical reactions such as polymerization, grafting, crosslinking and the like to achieve the purpose of solidification;
And 7: the heart outer wall structure and the heart inner wall structure are spliced to form a complete heart mould product capable of being filled;
and 8: mixing silicon rubber and a catalyst, preparing the type of the silicon rubber according to ventricular muscle, atrial muscle, valve and coronary artery data, fully stirring and mixing, vacuumizing, keeping the optimal curing environment of the silicon rubber, placing for several hours to increase the viscosity and reduce the fluidity of the product, wherein the optimal volume ratio of the silicon rubber to the catalyst is 10: 1-3: 1, the internal structure shape of the heart is closer to the real heart structure of a human body, the internal elasticity and shape of the heart are closer to the real heart of the human body, and the artificial heart can finish the simulated exercise of the clinical operation skills of heart cutting, suturing, blocking, coronary artery 'stent' and 'bridging';
and step 9: filling the reserved heart structure, wherein the silica gel material gradually fills the whole heart according to the pressure value as the heart cavity is evacuated to form negative pressure until the whole heart model is finally and uniformly filled to form a complete heart structure, and the optimal curing environment of the silica gel is kept at the room temperature of 20-25 ℃ and the humidity of 45-55%; (ii) a
Step 10: the vessel wall silicon rubber solidification and the vessel structure silicon rubber solidification are completed within 12-48 hours;
Step 11: and (5) removing the blood vessel mould.
As a preferred technical solution of the present invention, in step 1, the heart is filled with contrast medium containing iodizing agent, the CT scanning layer is 0.05mm thick, 150 to 250 layers of scanning of the heart is completed, medical image data is obtained, and the thickness between the two layers can be precisely controlled by controlling the space between the inner and outer shells of the vascular structure, so as to achieve the toughness and thickness of atrial muscle, the toughness and thickness of ventricular muscle, the toughness and thickness of heart valve, and the shape and thickness of coronary artery, thereby achieving high yield of heart.
As a preferred technical solution of the present invention, the medical image data is a DICOM medical file set.
In the step 2, a DICOM-format file of the data scanned in the step 1 is exported, and is identified by using the Mimics software, and a recognizable STL file is formed by forming a heart three-dimensional data template, repairing the heart template, editing a heart structure template, and optimizing a heart three-dimensional data image.
As a preferred technical solution of the present invention, in the step 11, an air pump is used to assist in demolding, air is injected between the mold and the silica gel to form an air layer, which is more convenient for demolding of the product, and the inner and outer mold models are disassembled to extract the heart structure, wherein the product includes a heart cavity structure, a heart valve, a heart papilla, a chordae tendinae, and a heart coronary artery.
As a preferred technical solution of the present invention, in the step 3, the three-dimensional image processing software includes maya, 3Dmax, UG, SolidWorks, and Zbrush software.
In a preferred embodiment of the present invention, in step 4, the printing material includes medical polypropylene or ethylene and a metal material, and may simulate tens of clinical skill operations or even hundreds of clinical skill operations.
As a preferred technical solution of the present invention, in the step 5, the heart portions are conventionally polished to fill the gaps in the manufacturing process, so as to achieve smoothness of the heart portions.
The invention has the beneficial effects that: the invention obtains the real data of the human heart structure through the medical imaging and data digitization of the heart structure, the 3D printing is carried out through the data of the three-dimensional data structure of the heart to manufacture the heart model or the heart template, the silicon rubber and the silicon rubber-like product are used for carrying out the accurate die-turning according to the human structure through the die-turning technology, the product has high accuracy, the thickness between the inner shell and the outer shell can be accurately controlled by controlling the space between the inner shell and the outer shell of the blood vessel structure, the toughness and the thickness of the atrial muscle and the toughness and the thickness of the ventricular muscle, the toughness and the thickness of the heart valve and the shape and the thickness of the coronary artery are achieved, the heart yield is high, each step of the process flow can be accurately controlled, the three-dimensional digitization of the heart structure and the die-turning of the heart chamber structure are included, the filling of the heart silica gel can evenly fill all the reserved template gaps according to the product requirement through the negative pressure gravitation silica gel, so the product has higher yield compared with the traditional manufacturing method, the shape of the internal structure of the heart is closer to the real heart structure of a human body, the internal elasticity and the shape of the heart are closer to the real heart of the human body, the artificial heart can simulate and practice the clinical operation skills of heart cutting, suturing, plugging and coronary artery 'stent' and 'bridging', and the material selection of the product can simulate tens of times or even hundreds of times of clinical operation skills.
Detailed Description
Example 1
The invention discloses a method for manufacturing a heart structure by using a rollover process of a 3D printing technology, which adopts the technical scheme that the method comprises the following steps:
step 1: scanning the internal structure of the heart, enhancing CT and MRI scanning;
step 2: extracting heart structure data to facilitate subsequent heart modeling;
and step 3: engineering processing is carried out on the heart model by using engineering software and three-dimensional image processing software, the outer shell of the heart is thickened and segmented, the inner shell of the heart is thickened and segmented, subsequent use is facilitated, and the structure between the outer shell and the inner shell is known;
and 4, step 4: importing the cardiac three-dimensional STL data manufactured in the step 3 into a 3D printer for cardiac printing and cardiac template printing, wherein the printing precision is 0.01mm, and the inner wall and the outer wall keep the cavity gap and complete structure fixing, and a gap is reserved for the cardiac three-dimensional STL data to be conveniently taken out;
and 5: polishing the die to avoid the influence on use caused by the excessively rough surface of the die;
step 6: filling the inner wall of the heart with paraffin, and removing the inner wall mold after the paraffin is solidified to form the inner wall of the paraffin heart; ultraviolet light irradiation is adopted to solidify the silica gel to form the inner wall of the paraffin heart, the ultraviolet light solidified silica gel is the silica gel which utilizes the photosensitivity of a photoinitiator, is photoinitiated under the irradiation of ultraviolet light to form an excited ecological molecule, and is decomposed into free radicals or ions, so that unsaturated organic matters are subjected to chemical reactions such as polymerization, grafting, crosslinking and the like to achieve the purpose of solidification;
And 7: the heart outer wall structure and the heart inner wall structure are spliced to form a complete heart mould product capable of being filled;
and 8: mixing silicon rubber and a catalyst, preparing the type of the silicon rubber according to ventricular muscle, atrial muscle, valve and coronary artery data, fully stirring and mixing, vacuumizing, keeping the optimal curing environment of the silica gel, and standing for several hours to increase the viscosity and reduce the fluidity of the product, wherein the optimal volume ratio of the silica gel to the catalyst is 10: 1;
and step 9: filling the reserved heart structure, wherein the silica gel material gradually fills the whole heart according to the pressure value as the heart cavity is evacuated to form negative pressure until the whole heart model is finally and uniformly filled to form a complete heart structure, and the optimal curing environment of the silica gel is kept at the room temperature of 20 ℃ and the humidity of 45%;
step 10: the vessel wall silicon rubber solidification and the vessel structure silicon rubber solidification are finished within 12 hours;
step 11: and (5) removing the blood vessel mould.
As a preferred embodiment of the present invention, in the step 1, the contrast medium of the iodinating agent is filled into the heart, the CT scan layer thickness is 0.05mm, and 150 scans of the heart are completed to obtain medical image data.
As a preferred technical solution of the present invention, the medical image data is a DICOM medical file set.
In the step 2, a DICOM-format file of the data scanned in the step 1 is exported, and is identified by using the Mimics software, and a recognizable STL file is formed by forming a heart three-dimensional data template, repairing the heart template, editing a heart structure template, and optimizing a heart three-dimensional data image.
As a preferred technical solution of the present invention, in the step 11, an air pump is used to assist in demolding, air is injected between the mold and the silica gel to form an air layer, which is more convenient for demolding of the product, and the inner and outer mold models are disassembled to extract the heart structure, wherein the product includes a heart cavity structure, a heart valve, a heart papilla, a chordae tendinae, and a heart coronary artery.
As a preferred technical solution of the present invention, in the step 3, the three-dimensional image processing software includes maya, 3Dmax, UG, SolidWorks, and Zbrush software.
In a preferred embodiment of the present invention, in step 4, the printing material comprises medical polypropylene or ethylene and metal material, and the heart model is made available for multiple times through the material.
As a preferred technical solution of the present invention, in the step 5, the heart parts are conventionally polished, and gaps in the manufacturing process are filled to achieve smoothness of the heart parts, so that the heart parts can be easily connected together.
Example 2
The present embodiment is different from embodiment 1 in that it includes the following steps:
step 1: scanning the internal structure of the heart, enhancing CT and MRI scanning;
step 2: extracting cardiac structure data;
and step 3: engineering processing is carried out on the heart model by using engineering software and three-dimensional image processing software, the outer shell of the heart is thickened and divided, and the inner shell of the heart is thickened and divided;
and 4, step 4: importing the cardiac three-dimensional STL data manufactured in the step 3 into a 3D printer for cardiac printing and cardiac template printing, wherein the printing precision is 0.02mm, and the inner wall and the outer wall keep the lacuna and complete structure fixation;
and 5: polishing the mold;
step 6: filling the inner wall of the heart with paraffin, and removing the inner wall mold after the paraffin is solidified to form the inner wall of the paraffin heart; solidifying the silica gel by adopting purple light irradiation to form a paraffin heart inner wall;
and 7: the heart outer wall structure and the heart inner wall structure are spliced to form a complete heart mould product capable of being filled;
And 8: mixing silicon rubber and a catalyst, preparing the type of the silicon rubber according to ventricular muscle, atrial muscle, valve and coronary artery data, fully stirring and mixing, vacuumizing, keeping the optimal curing environment of the silica gel, and standing for several hours to increase the viscosity and reduce the fluidity of the product, wherein the optimal volume ratio of the silica gel to the catalyst is 6: 1;
and step 9: filling the reserved heart structure, wherein the silica gel material gradually fills the whole heart according to the pressure value as the heart cavity is evacuated to form negative pressure until the whole heart model is finally and uniformly filled to form a complete heart structure, and the optimal curing environment of the silica gel is kept at the room temperature of 23 ℃ and the humidity of 50%;
step 10: the vessel wall silicon rubber solidification and the vessel structure silicon rubber solidification are completed within 30 hours;
step 11: and (5) removing the blood vessel mould.
As a preferred embodiment of the present invention, in step 1, the contrast medium filling with an iodinating agent is performed on the heart, the CT scanning layer thickness is 0.05mm, and 200-layer scanning of the heart is completed to obtain medical image data.
Example 3
The present embodiment is different from embodiment 1 in that it includes the following steps:
step 1: scanning the internal structure of the heart, enhancing CT and MRI scanning;
Step 2: extracting cardiac structure data;
and step 3: engineering processing is carried out on the heart model by using engineering software and three-dimensional image processing software, the outer shell of the heart is thickened and divided, and the inner shell of the heart is thickened and divided;
and 4, step 4: importing the cardiac three-dimensional STL data manufactured in the step 3 into a 3D printer for cardiac printing and cardiac template printing, wherein the printing precision is 0.03mm, and the inner wall and the outer wall keep the lacuna and complete structure fixation;
and 5: polishing the mold;
step 6: filling the inner wall of the heart with paraffin, and removing the inner wall mold after the paraffin is solidified to form the inner wall of the paraffin heart; solidifying the silica gel by adopting purple light irradiation to form a paraffin heart inner wall;
and 7: the heart outer wall structure and the heart inner wall structure are spliced to form a complete heart mould product capable of being filled;
and 8: mixing silicon rubber and a catalyst, preparing the type of the silicon rubber according to ventricular muscle, atrial muscle, valve and coronary artery data, fully stirring and mixing, vacuumizing, keeping the optimal curing environment of the silica gel, and standing for several hours to increase the viscosity and reduce the fluidity of the product, wherein the optimal volume ratio of the silica gel to the catalyst is 3: 1;
and step 9: filling the reserved heart structure, wherein the silica gel material gradually fills the whole heart according to the pressure value as the heart cavity is evacuated to form negative pressure until the whole heart model is finally and uniformly filled to form a complete heart structure, and the optimal curing environment of the silica gel is kept at the room temperature of 25 ℃ and the humidity of 55%;
Step 10: the vessel wall silicon rubber solidification and the vessel structure silicon rubber solidification are completed within 48 hours;
step 11: and (5) removing the blood vessel mould.
As a preferred embodiment of the present invention, in step 1, the heart is filled with a contrast medium containing an iodinating agent, the CT scan layer thickness is 0.05mm, and 250 scans of the heart are completed to obtain medical image data.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. A method for manufacturing a cardiac structure by an overmolding process of a 3D printing technique, characterized by: the method comprises the following steps:
step 1: scanning the internal structure of the heart, enhancing CT and MRI scanning;
step 2: extracting cardiac structure data;
and step 3: engineering processing is carried out on the heart model by using engineering software and three-dimensional image processing software, the outer shell of the heart is thickened and divided, and the inner shell of the heart is thickened and divided;
And 4, step 4: importing the cardiac three-dimensional STL data manufactured in the step 3 into a 3D printer for cardiac printing and cardiac template printing, wherein the printing precision is 0.01-0.03 mm, and the inner and outer walls keep the lacuna and complete structure fixation;
and 5: polishing the mold;
step 6: filling paraffin and violet light curing silica gel on the inner wall of the heart, and removing an inner wall mold after the paraffin is cured to form the inner wall of the paraffin heart; solidifying the silica gel by adopting purple light irradiation to form a paraffin heart inner wall;
and 7: the heart outer wall structure and the heart inner wall structure are spliced to form a complete heart mould product capable of being filled;
and 8: mixing silicon rubber and a catalyst, preparing the type of the silicon rubber according to ventricular muscle, atrial muscle, valve and coronary artery data, fully stirring and mixing, vacuumizing, keeping the optimal curing environment of the silica gel, and standing for several hours to increase the viscosity and reduce the fluidity of the product, wherein the optimal volume ratio of the silica gel to the catalyst is 10: 1-3: 1;
and step 9: filling the reserved heart structure, wherein the silica gel material gradually fills the whole heart according to the pressure value as the heart cavity is evacuated to form negative pressure until the whole heart model is finally and uniformly filled to form a complete heart structure, and the optimal curing environment of the silica gel is kept at the room temperature of 20-25 ℃ and the humidity of 45-55%;
Step 10: the vessel wall silicon rubber solidification and the vessel structure silicon rubber solidification are completed within 12-48 hours;
step 11: and (5) removing the blood vessel mould.
2. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: in the step 1, the heart is filled with contrast medium of an iodizing agent, the thickness of a CT scanning layer is 0.05mm, 150-250 layers of scanning of the heart is completed, and medical image data is obtained.
3. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 2, characterized in that: the medical image data is a DICOM medical file set.
4. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: in the step 2, exporting the DICOM format file of the data scanned in the step 1, identifying by using Mimics software, and forming an STL file capable of being identified by forming a heart three-dimensional data template, repairing the heart template, editing a heart structure template and optimizing a heart three-dimensional data image.
5. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: and 11, using an air pump to assist in demoulding, injecting air between the mould and the silica gel to form an air layer so as to facilitate demoulding of the product, and disassembling the inner and outer membrane models to extract the heart structure, wherein the product comprises a heart cavity structure, a heart valve, a heart papilla, a chordae tendinae and a heart coronary artery.
6. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: in the step 3, the three-dimensional image processing software comprises maya software, 3Dmax software, UG software, SolidWorks software and Zbrush software.
7. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: in the step 4, the printing material comprises medical polypropylene or ethylene and a metal material.
8. A method for manufacturing a cardiac structure by an overmolding process of 3D printing technology according to claim 1, characterized in that: and 5, conventionally polishing each part of the heart, and filling gaps in the manufacturing process to achieve the smoothness of each part.
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| CN202110849838.8A CN113593387A (en) | 2021-07-27 | 2021-07-27 | Method for manufacturing heart structure by using rollover process of 3D printing technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734625A (en) * | 2022-04-12 | 2022-07-12 | 深圳市广德教育科技股份有限公司 | Method for preparing model of body model for three-dimensional cutting of clothes |
| CN115091776A (en) * | 2022-06-29 | 2022-09-23 | 大连理工大学 | Personalized silica gel valve and manufacturing method of calcified silica gel valve physical model |
-
2021
- 2021-07-27 CN CN202110849838.8A patent/CN113593387A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734625A (en) * | 2022-04-12 | 2022-07-12 | 深圳市广德教育科技股份有限公司 | Method for preparing model of body model for three-dimensional cutting of clothes |
| CN115091776A (en) * | 2022-06-29 | 2022-09-23 | 大连理工大学 | Personalized silica gel valve and manufacturing method of calcified silica gel valve physical model |
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