CN114495672A - Construction device for minimally invasive model of cardiac surgery - Google Patents

Abstract

The invention discloses a construction device for a minimally invasive model of cardiac surgery, which comprises a construction base, a human body half model and a double-cylinder contrast agent injection module, the outside of the arm of the half-body model of the human body is provided with a contrast agent connecting and injecting mechanism, the inside of the half-body model of the human body is provided with a simulated heart and a simulated arterial blood vessel, the inner side of the simulated heart is provided with a coronary artery abnormity simulation module, a simulated blood flow velocity detection assembly and a contrast agent distribution detection assembly, the inner side of the coronary artery abnormity simulation module is provided with a normal blood vessel circulation pipeline, a plaque blood vessel circulation pipeline and a narrow blood vessel circulation pipeline, the invention simulates coronary artery blood vessel abnormity in different states, thereby more conveniently and clearly showing the specific content in the process of the cardioangiography operation, and under the same state, the cardiac imaging data in the normal coronary artery state and the cardiac imaging data in the abnormal coronary artery state are compared.

Description

Construction device for minimally invasive model of cardiac surgery

Technical Field

The invention relates to the technical field of model component devices, in particular to a construction device for a minimally invasive model of cardiac surgery.

Background

The cardiography is one of important examination means before cardiac surgery, belongs to minimally invasive surgery, has relatively small traumatic property of the surgery and quick prognosis recovery, injects a contrast medium to certain parts of the heart and large blood vessels through a cardiac catheter to develop the heart and quickly photograph so as to display pathological changes and circulation function conditions of the heart and the large blood vessels. Examples of the cardiography include coronary angiography and cardiac (atrial, ventricular) angiography. For minimally invasive surgeries used for cardiac surgery, such as cardiac angiography, part of patients or related professional medical students have limited understanding on the minimally invasive surgeries, the effects of the cardiac angiography surgeries cannot be intuitively understood, the cognition of the cardiac angiography surgeries has large errors, the importance of the cardiac angiography surgeries cannot be recognized, minimally invasive surgeries, such as cardiac angiography, cannot be treated rationally due to panic psychology of the surgeries, and due to different blood vessel conditions of different people, when constructing a cardiac angiography minimally invasive surgery model, appropriate cardiac angiography minimally invasive surgery models cannot be constructed according to various blood vessel states, so that the construction device for the cardiac surgery minimally invasive model is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a construction device for a minimally invasive cardiac surgery model, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a device for constructing a minimally invasive model of cardiac surgery comprises a construction base, a half-body model of a human body and a binocular contrast agent injection module, wherein a control mechanism and a display mechanism are arranged on the outer side of the construction base and are respectively used for controlling the device and displaying the result of a cardiac angiography operation, a contrast agent connecting and injecting mechanism is arranged on the outer side of an arm of the half-body model of the human body, the binocular contrast agent injection module is connected with the contrast agent connecting and injecting mechanism through a three-way pipe and injects the contrast agent into the half-body model of the human body through the contrast agent connecting and injecting mechanism, a simulated heart and a simulated arterial blood vessel are arranged on the inner side of the half-body model of the human body, a blood flow simulation module is arranged on the inner side of the construction base and is communicated with the simulated arterial blood vessel to simulate the blood flow in the blood vessel of the human body, the heart simulating system is characterized in that a coronary artery abnormity simulating module, a simulated blood flow velocity detecting assembly and a contrast agent distribution detecting assembly are arranged on the inner side of the simulated heart, the simulated blood flow velocity detecting assembly and the contrast agent distribution detecting assembly are respectively used for detecting the simulated blood flow velocity change passing through the coronary artery abnormity simulating module and the contrast agent distribution condition in the coronary artery abnormity simulating module, a normal blood vessel circulation pipeline, a plaque blood vessel circulation pipeline and a narrow blood vessel circulation pipeline are arranged on the inner side of the coronary artery abnormity simulating module to realize the simulation of three different states of a human blood vessel, a blood vessel simulated plaque is arranged on the inner side of the plaque blood vessel circulation pipeline and is used for simulating the early plaque condition on the inner wall of the human blood vessel, and a blood vessel simulated narrow blockage is arranged on the inner side of the narrow blood vessel circulation pipeline and is used for simulating the blockage narrow condition on the inner wall of the human blood vessel, the inner side of the abnormal state conversion assembly is provided with a filler supplement pipeline, the filler supplement pipeline is used for adjusting the severity of blood vessel simulated plaque and blood vessel simulated stenosis blockage, one side of the coronary artery abnormal simulation module is provided with an artery abnormal simulation adjusting module, the artery abnormal simulation adjusting module comprises a filler supplement groove, a filler injection and suction power assembly and a filler connecting mechanism, the filler connecting mechanism is connected with the filler supplement pipeline, and the filler injection and suction power assembly realizes the transfer of filler between the filler supplement groove and the filler connecting mechanism.

Furthermore, the blood vessel simulated plaque and the blood vessel simulated stenosis blockage are both composed of an elastic telescopic outer layer and a filler inner core, and simulation of different sizes of the blood vessel simulated plaque and the blood vessel simulated stenosis blockage is achieved by changing the quantity of fillers of the filler inner core.

Furthermore, a seal assembly is arranged on the inner side of the coronary artery abnormity simulation module, one end of the filler connecting mechanism is arranged on the inner side of the seal assembly, the seal assembly is overlapped with a filler supplement pipeline in the abnormal state conversion assembly, and the seal assembly is used for plugging the filler supplement pipeline which is not connected with the filler connecting mechanism.

Furthermore, a conversion power assembly is arranged on the inner side of one end of the coronary artery abnormity simulation module and provides power for the abnormal state conversion assembly.

Furthermore, the outlet end of a filler supplementing pipeline in the abnormal state conversion assembly is in a conical shape, the conical shape facilitates conversion and switching of the abnormal state conversion assembly, the filler connecting mechanism comprises a storage assembly and a telescopic injection and suction head assembly, an elastic assembly is arranged between the storage assembly and the telescopic injection and suction head assembly, and the outer diameter of the telescopic injection and suction head assembly is identical with the minimum inner diameter of the outlet end of the filler supplementing pipeline.

Further, a use method of the constructing device for the cardiac minimally invasive surgery model comprises the following steps:

the method comprises the following steps: performing blood flow simulation on a simulated heart and a simulated arterial blood vessel in the human body half-body model by a blood flow simulation module;

step two: after the double-barrel contrast agent injection module sucks contrast agent and physiological saline, the contrast agent is injected into the simulated arterial vessel through the contrast agent connecting injection mechanism, and a cardiac angiography operation model is constructed;

step three: simulating the abnormal coronary artery blood vessel in the simulated heart under different conditions by the transformation among the normal blood vessel circulation pipeline, the plaque blood vessel circulation pipeline and the narrow blood vessel circulation pipeline in the abnormal state transformation assembly, and comparing the contrast effect under different states by the simulated blood flow velocity detection assembly and the contrast agent distribution detection assembly;

step four: the sizes of the blood vessel simulated plaque in the plaque blood vessel circulation pipeline and the blood vessel simulated stenosis blocking abnormity in the stenosis blood vessel circulation pipeline are regulated through the artery abnormity simulated regulation module, and the simulation comparison is carried out on different severity degrees of the heart coronary artery abnormity.

Compared with the prior art, the method and the device have the advantages that the main blood vessels in the cardiac angiography process are simulated, the human body model is built, the construction of the cardiac angiography operation model is realized through the simulated injection of the contrast medium, the coronary artery abnormity simulation module is used for simulating the coronary artery abnormity in different states, so that the specific content in the cardiac angiography operation process is displayed more conveniently and clearly, the cardiac angiography data in the normal state of the coronary arteries and the cardiac angiography data in the abnormal state of the coronary arteries can be compared in the same state, and the effect of the cardiac angiography operation is recognized more clearly through the construction of the cardiac angiography operation model.

Compared with the prior art, the invention adjusts the sizes of the blood vessel simulated plaque in the blood vessel circulation pipeline and the blood vessel simulated stenosis blockage in the narrow blood vessel circulation pipeline through the artery abnormity simulated adjustment module, so that the cardioangiography operation model established by the device can simulate the angiography effects of different diseases, can simulate the cardioangiography of different disease severity degrees of the same disease, and meets the construction of the cardioangiography operation model of the coronary artery blood vessel under various states.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the technical description of the present invention will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the coronary artery abnormality simulation module according to the present invention.

FIG. 3 is a schematic structural diagram of an abnormal state transition component according to the present invention.

In the figure: 1. constructing a base; 2. a human body half model; 3. a blood flow simulation module; 4. a dual-barrel contrast injection module; 5. a control mechanism; 6. a display mechanism; 7. a contrast agent connection injection mechanism; 8. simulating a heart; 8a, simulating an arterial blood vessel; 9. a coronary artery abnormality simulation module; 10. an abnormal state transition component; 11. a normal vascular flow circuit; 12. a plaque vascular flow circuit; 12a, simulating plaques in blood vessels; 13. a stenotic vascular flow conduit; 13a, simulating narrow blockage of the blood vessel; 14. a conversion power assembly; 15. a seal assembly; 16. a simulated blood flow rate detection assembly; 17. a contrast agent distribution detection assembly; 18. an arterial abnormality simulation and regulation module; 19. a filler replenishment tank; 20. the filler injection and suction power component; 21. a filler attachment mechanism.

Detailed Description

The present invention is further described with reference to specific embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present invention.

Example 1

Referring to fig. 1-3, the invention provides a device for constructing a minimally invasive cardiac surgery model, which comprises a construction base 1, a half-body model 2 of a human body and a binocular contrast agent injection module 4, wherein the outer side of the construction base 1 is provided with a control mechanism 5 and a display mechanism 6, the control mechanism 5 and the display mechanism 6 are respectively used for controlling the device and displaying the result of a cardiac angiography operation, the outer side of the arm of the half-body model 2 of the human body is provided with a contrast agent connection injection mechanism 7, the binocular contrast agent injection module 4 is connected with the contrast agent connection injection mechanism 7 through a three-way pipe, contrast agent is injected into the half-body model 2 of the human body through the contrast agent connection injection mechanism 7, the inner side of the half-body model 2 of the human body is provided with a simulated heart 8 and a simulated arterial vessel 8a, the inner side of the construction base 1 is provided with a blood flow simulation module 3, the blood flow simulation module 3 is communicated with a simulated arterial vessel 8a, the blood flow in a human blood vessel is simulated, a coronary artery abnormity simulation module 9, a simulated blood flow velocity detection assembly 16 and a contrast agent distribution detection assembly 17 are arranged on the inner side of a simulated heart 8, the simulated blood flow velocity detection assembly 16 and the contrast agent distribution detection assembly 17 are respectively used for detecting the simulated blood flow velocity change passing through the coronary artery abnormity simulation module 9 and the contrast agent distribution condition in the coronary artery abnormity simulation module 9, a normal blood vessel circulation pipeline 11, a plaque blood vessel circulation pipeline 12 and a narrow blood vessel circulation pipeline 13 are arranged on the inner side of the coronary artery abnormity simulation module 9, so that three different states of the human blood vessel are simulated, a blood vessel simulated plaque 12a is arranged on the inner side of the plaque blood vessel circulation pipeline 12 and is used for simulating the early plaque condition of the inner wall of the human blood vessel, and a blood vessel simulated narrow blockage 13a is arranged on the inner side of the narrow blood vessel circulation pipeline 13, the device is used for simulating the narrow blockage condition of the inner wall of a human blood vessel, a filler supplementing pipeline is arranged on the inner side of the abnormal state conversion component 10 and used for adjusting the severity of a blood vessel simulated plaque 12a and a blood vessel simulated narrow blockage 13a, an artery abnormity simulated adjusting module 18 is arranged on one side of the coronary artery abnormity simulated module 9, the artery abnormity simulated adjusting module 18 comprises a filler supplementing groove 19, a filler injection and suction power component 20 and a filler connecting mechanism 21, the filler connecting mechanism 21 is connected with the filler supplementing pipeline, and the filler injection and suction power component 20 realizes the transfer of filler between the filler supplementing groove 19 and the filler connecting mechanism 21.

Specifically, the blood vessel simulated plaque 12a and the blood vessel simulated stenosis blockage 13a are both composed of an elastic telescopic outer layer and a filler inner core, and simulation of different sizes of the blood vessel simulated plaque 12a and the blood vessel simulated stenosis blockage 13a is achieved by changing the quantity of fillers in the filler inner core.

Specifically, a conversion power assembly 14 is arranged on the inner side of one end of the coronary artery abnormity simulation module 9, and the conversion power assembly 14 provides power for the abnormal state conversion assembly 10.

By adopting the technical scheme: in the invention, the main blood vessels in the process of cardiography are simulated, a human body model is established, the construction of a cardiography operation model is realized by the simulated injection of a contrast medium, the coronary artery blood vessel abnormity in different states is simulated by a coronary artery abnormity simulation module 9, so that the specific content in the process of the cardiography operation is more conveniently and clearly displayed, the cardiography data in the normal state of the coronary artery and the cardiography data in the abnormal state of the coronary artery can be compared under the same state, and the effect of the cardiography operation is more clearly known by the construction of the cardiography operation model.

It should be noted that the invention provides a device for constructing a minimally invasive model of cardiac surgery, which comprises the following steps: firstly, a contrast agent and physiological saline for simulation are sucked into a double-cylinder contrast agent injection module 4, after the simulation is completed, the double-cylinder contrast agent injection module 4 is connected with a contrast agent connection injection mechanism 7 through a three-way valve, a blood flow simulation module 3 drives simulation blood to circularly flow in a simulation heart 8 and a simulation artery 8a in a human body half body model 2, the blood circulation simulation is realized, a catheter in the cardiac radiography operation is inserted into the simulation artery 8a through the contrast agent connection injection mechanism 7, the operation of the double-cylinder contrast agent injection module 4 enables the catheter in the contrast agent connection injection mechanism 7 to inject the contrast agent into the simulation artery 8a, the construction of the cardiac radiography operation model is realized, and an abnormal state conversion component 10 is driven by a conversion power assembly 14 in the process of simulating the cardiac radiography operation, the normal blood vessel circulation pipeline 11 in the abnormal state conversion assembly 10 is communicated with the simulated artery blood vessel 8a, so that the cardioangiography operation simulation of the human body with normal cardiac blood vessels is realized.

Example 2

The same parts in this embodiment as those in embodiment 1 are not described again, but the difference lies in a workflow of a device for constructing a minimally invasive cardiac surgery model.

It should be noted that the invention provides a device for constructing a minimally invasive model of cardiac surgery, which comprises the following steps: before the construction of the cardioangiography operation model is completed, the abnormal state conversion component 10 is driven by the conversion power assembly 14, so that the positions of the normal blood vessel circulation pipeline 11, the plaque blood vessel circulation pipeline 12 and the narrow blood vessel circulation pipeline 13 in the abnormal state conversion component 10 are changed until the plaque blood vessel circulation pipeline 12 and the narrow blood vessel circulation pipeline 13 in the abnormal state conversion component 10 are respectively communicated with the simulated arterial blood vessel 8a, at the moment, the cardioangiography operation model is constructed, in the cardioangiography operation simulation process of a human body with normal cardiac blood vessels, a blood vessel simulation plaque 12 appears on the inner wall of a part of the simulated arterial blood vessel 8a, at the moment, the distribution of the contrast agent at the place is changed, and the distribution of the contrast agent and the simulated blood flow rate are detected by the simulated blood flow rate detection component 16 and the contrast agent distribution detection component 17, and compared with the data result of the embodiment 1, the construction of the cardioangiography operation model under the conditions that plaque appears on the inner wall of the human blood vessel and the blood vessel is narrow is realized.

Example 3

Referring to fig. 1-3, the invention provides a device for constructing a minimally invasive cardiac surgery model, which comprises a construction base 1, a half-body model 2 of a human body and a binocular contrast agent injection module 4, wherein the outer side of the construction base 1 is provided with a control mechanism 5 and a display mechanism 6, the control mechanism 5 and the display mechanism 6 are respectively used for controlling the device and displaying the result of a cardiac angiography operation, the outer side of the arm of the half-body model 2 of the human body is provided with a contrast agent connection injection mechanism 7, the binocular contrast agent injection module 4 is connected with the contrast agent connection injection mechanism 7 through a three-way pipe, contrast agent is injected into the half-body model 2 of the human body through the contrast agent connection injection mechanism 7, the inner side of the half-body model 2 of the human body is provided with a simulated heart 8 and a simulated arterial vessel 8a, the inner side of the construction base 1 is provided with a blood flow simulation module 3, the blood flow simulation module 3 is communicated with a simulated arterial vessel 8a, the blood flow in a human blood vessel is simulated, a coronary artery abnormity simulation module 9, a simulated blood flow velocity detection assembly 16 and a contrast agent distribution detection assembly 17 are arranged on the inner side of a simulated heart 8, the simulated blood flow velocity detection assembly 16 and the contrast agent distribution detection assembly 17 are respectively used for detecting the simulated blood flow velocity change passing through the coronary artery abnormity simulation module 9 and the contrast agent distribution condition in the coronary artery abnormity simulation module 9, a normal blood vessel circulation pipeline 11, a plaque blood vessel circulation pipeline 12 and a narrow blood vessel circulation pipeline 13 are arranged on the inner side of the coronary artery abnormity simulation module 9, so that three different states of the human blood vessel are simulated, a blood vessel simulated plaque 12a is arranged on the inner side of the plaque blood vessel circulation pipeline 12 and is used for simulating the early plaque condition of the inner wall of the human blood vessel, and a blood vessel simulated narrow blockage 13a is arranged on the inner side of the narrow blood vessel circulation pipeline 13, the device is used for simulating the narrow blockage condition of the inner wall of a human blood vessel, a filler supplementing pipeline is arranged on the inner side of the abnormal state conversion component 10 and used for adjusting the severity of a blood vessel simulated plaque 12a and a blood vessel simulated narrow blockage 13a, an artery abnormity simulated adjusting module 18 is arranged on one side of the coronary artery abnormity simulated module 9, the artery abnormity simulated adjusting module 18 comprises a filler supplementing groove 19, a filler injection and suction power component 20 and a filler connecting mechanism 21, the filler connecting mechanism 21 is connected with the filler supplementing pipeline, and the filler injection and suction power component 20 realizes the transfer of filler between the filler supplementing groove 19 and the filler connecting mechanism 21.

Specifically, a seal assembly 15 is disposed inside the coronary artery abnormality simulation module 9, one end of the filler connection mechanism 21 is disposed inside the seal assembly 15, the seal assembly 15 overlaps the filler supplement pipeline in the abnormal state transition assembly 10, and the seal assembly 15 is used for plugging the filler supplement pipeline which is not connected to the filler connection mechanism 21.

Specifically, the outlet end of the filler replenishing pipeline in the abnormal state transition assembly 10 is in a conical shape, the conical shape is convenient for the transition switching of the abnormal state transition assembly 10, the filler connecting mechanism 21 comprises a storage assembly and a telescopic injection and suction head assembly, an elastic assembly is arranged between the storage assembly and the telescopic injection and suction head assembly, and the outer diameter of the telescopic injection and suction head assembly is identical with the minimum inner diameter of the outlet end of the filler replenishing pipeline.

By adopting the technical scheme: in the invention, the artery abnormity simulation and adjustment module 18 is used for adjusting the sizes of the blood vessel simulated plaque 12a in the blood vessel circulation pipeline 12 and the blood vessel simulated stenosis blockage 13a in the stenosis blood vessel circulation pipeline 13, so that the cardioangiography operation model established by the device can simulate the angiography effects of different diseases, can simulate the cardioangiography of different disease severity degrees of the same disease, and meets the construction of the cardioangiography operation model of coronary artery blood vessels in various states.

It should be noted that the invention provides a device for constructing a minimally invasive model of cardiac surgery, which comprises the following steps: after the construction of the cardiac angiography operation model is completed, and in the process of performing the cardiac angiography operation simulation in the abnormal state of the coronary artery by using the plaque blood vessel circulation pipeline 12, at this time, the filler supplement pipeline corresponding to the plaque blood vessel circulation pipeline 12 is communicated with the filler connecting mechanism 21, and the control of the filler injection and suction power assembly 20 enables the filler in the filler supplement groove 19 to be driven and enter the blood vessel simulation plaque 12a in the plaque blood vessel circulation pipeline 12 along the filler connecting mechanism 21 and the filler supplement pipeline, so as to adjust the size of the blood vessel simulation plaque 12a, thereby realizing the construction of the cardiac angiography operation model in which the blood vessel plaque is generated in the coronary artery and under different disease weight states, and in the process of performing the cardiac angiography operation simulation in the abnormal state of the coronary artery by using the narrow blood vessel circulation pipeline 13, the size of the simulated stenosis blockage 13a of the blood vessel in the narrow blood vessel circulation pipeline 13 can be adjusted, so that the construction of a coronary artery stenosis cardioangiography operation model under different disease severity conditions is realized, the cardioangiography simulation is carried out on different disease severity degrees of the same disease condition, and the construction of the cardioangiography operation model of the coronary artery blood vessel under each condition is met.

The above description is only for the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should be construed as the scope of the present invention by equally or differently replacing the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (6)

1. A construction device for a minimally invasive cardiac surgery model comprises a construction base, a human body half-length model and a double-cylinder contrast agent injection module, and is characterized in that: the outside of the construction base is provided with a control mechanism and a display mechanism, the outside of the arm of the human body half model is provided with a contrast agent connecting and injecting mechanism, and the double-barrel contrast agent injecting module is connected with the contrast agent connecting and injecting mechanism through a three-way pipe;

the inner side of the human body half-body model is provided with a simulated heart and a simulated arterial blood vessel, the inner side of the construction base is provided with a blood flow simulation module, and the blood flow simulation module is communicated with the simulated arterial blood vessel;

the inside of the simulated heart is provided with a coronary artery abnormity simulation module, a simulated blood flow velocity detection assembly and a contrast agent distribution detection assembly, and the inside of the coronary artery abnormity simulation module is provided with a normal blood vessel circulation pipeline, a plaque blood vessel circulation pipeline and a narrow blood vessel circulation pipeline;

the inner side of the plaque blood vessel circulation pipeline is provided with a blood vessel simulation plaque, the inner side of the narrow blood vessel circulation pipeline is provided with a blood vessel simulation narrow blockage, the inner side of the abnormal state conversion assembly is provided with a filler supplement pipeline, and the filler supplement pipeline is used for adjusting the severity of the blood vessel simulation plaque and the blood vessel simulation narrow blockage;

one side of the coronary artery abnormity simulation module is provided with an artery abnormity simulation adjustment module, the artery abnormity simulation adjustment module comprises a filler supplement groove, a filler injection and suction power assembly and a filler connecting mechanism, the filler connecting mechanism is connected with a filler supplement pipeline, and the filler injection and suction power assembly realizes the transfer of filler between the filler supplement groove and the filler connecting mechanism.

2. A building device for a minimally invasive model of cardiac surgery according to claim 1, characterized in that: the blood vessel simulated plaque and the blood vessel simulated stenosis blockage are both composed of an elastic telescopic outer layer and a filler inner core.

3. A building device for a minimally invasive model of cardiac surgery according to claim 1, characterized in that: the inner side of the coronary artery abnormity simulation module is provided with a seal assembly, one end of the filler connecting mechanism is arranged on the inner side of the seal assembly, and the seal assembly is overlapped with a filler supplement pipeline in the abnormal state conversion assembly.

4. A building device for a minimally invasive model of cardiac surgery according to claim 1, characterized in that: the inner side of one end of the coronary artery abnormity simulation module is provided with a conversion power assembly, and the conversion power assembly provides power for the abnormal state conversion assembly.

5. A building device for a minimally invasive model of cardiac surgery according to claim 3, characterized in that: the outlet end of a filler supplementing pipeline in the abnormal state conversion assembly is arranged in a conical shape, the filler connecting mechanism comprises a storage assembly and a telescopic injection and suction head assembly, an elastic assembly is arranged between the storage assembly and the telescopic injection and suction head assembly, and the outer diameter of the telescopic injection and suction head assembly is matched with the minimum inner diameter of the outlet end of the filler supplementing pipeline.

6. Use of a device for constructing minimally invasive models of the heart according to claim 1, characterized in that it comprises the following steps:

the method comprises the following steps:

the method comprises the following steps: performing blood flow simulation on a simulated heart and a simulated arterial blood vessel in the human body half-body model by a blood flow simulation module;

step two: after the double-barrel contrast agent injection module sucks contrast agent and physiological saline, the contrast agent is injected into the simulated arterial vessel through the contrast agent connecting injection mechanism, and a cardiac angiography operation model is constructed;

step three: simulating the abnormal coronary artery blood vessel in the simulated heart under different conditions by the transformation among the normal blood vessel circulation pipeline, the plaque blood vessel circulation pipeline and the narrow blood vessel circulation pipeline in the abnormal state transformation assembly, and comparing the contrast effect under different states by the simulated blood flow velocity detection assembly and the contrast agent distribution detection assembly;

step four: the sizes of the blood vessel simulated plaque in the plaque blood vessel circulation pipeline and the blood vessel simulated stenosis blocking abnormity in the stenosis blood vessel circulation pipeline are regulated through the artery abnormity simulated regulation module, and the simulation comparison is carried out on different severity degrees of the heart coronary artery abnormity.

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