CN116682315A - Teaching aid for teaching in vitro heart demonstration and exercise - Google Patents
Teaching aid for teaching in vitro heart demonstration and exercise Download PDFInfo
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- 238000000338 in vitro Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 241001465754 Metazoa Species 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 58
- 238000003860 storage Methods 0.000 claims description 28
- 238000005086 pumping Methods 0.000 claims description 10
- 210000001367 artery Anatomy 0.000 claims description 9
- 210000003462 vein Anatomy 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 230000002792 vascular Effects 0.000 claims description 8
- 244000144972 livestock Species 0.000 claims description 7
- 210000004204 blood vessel Anatomy 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 230000004088 pulmonary circulation Effects 0.000 claims description 5
- 230000001839 systemic circulation Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 15
- 238000004088 simulation Methods 0.000 description 11
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- 238000007599 discharging Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000007675 cardiac surgery Methods 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
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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
- G09B23/30—Anatomical models
- G09B23/306—Anatomical models comprising real biological tissue
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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
- G09B23/30—Anatomical models
- G09B23/303—Anatomical models specially adapted to simulate circulation of bodily fluids
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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
- G09B9/00—Simulators for teaching or training purposes
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/70—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry
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Abstract
The invention provides an in-vitro heart demonstration and exercise teaching aid for teaching, and belongs to the technical field of medical teaching aids. The utility model provides a teaching aid is used in teaching external heart show, exercise, includes master control mechanism, master control mechanism directly acts on connects the platform soon, master control mechanism includes reciprocating pump and advances module, booster-type force (forcing) pump, connect the platform soon including the transparent box that the upper end cover can be opened the lower bottom surface slope of transparent box sets up and connects the flowing back pipeline, the setting of transparent box upper end cover in fixed port, the withstand voltage pipe that sets up in the fixed port with reciprocating pump advances module, domestic animal's donor heart and is connected respectively. In order to perform more realistic in-vitro heart teaching demonstration and related operation exercise, a teaching in-vitro heart demonstration and exercise teaching aid for replacing and simulating animal hearts is designed.
Description
Technical Field
The invention belongs to the technical field of medical teaching aids, and particularly relates to an in-vitro heart demonstration and exercise teaching aid for teaching.
Background
The modern technology is rapidly developed, the medical technology is very different day by day, the health guarantee force of the public is increased in recent years, the importance of education and training on the medical quality is emphasized by the files of each successive authorities, but most of surgeons currently adopt a teaching mode of ' teachers and students with education ' and ' operation instead of training ', so that the practice opportunity of the doctors is seriously insufficient, and the doctors can provide sufficient skill accumulation opportunities only by changing the traditional mode of training skills on patients, and meanwhile, the risks of doctor's practice are reduced. Surgery has extremely high demands on the skill of the physician, requiring extensive, realistic training if one wants to get an effective skill build up.
At present, a method for performing minimally invasive surgery training on a doctor mainly uses a virtual simulator formed by a 3D animation and force feedback system to train, the 3D simulator is relatively convenient, but human tissues are complex multi-layer materials, and the operation touch feeling of the 3D simulator can not meet clinical requirements all the time because the properties of the 3D simulator depend on the number of layers, the thickness of the layers, the trend of muscle fibers, the humidity, the temperature and the like. Therefore, the training effect of the conventional minimally invasive surgery training device is not ideal.
As in patent CN112017517a, a preparation method of an in vitro organ model is shown, but for a heart which is a special organ with a need of self-pulsation, the training effect under a static method is not obvious, and meanwhile, the concept of using an in vitro circulating machine in a large scale in operation is contrary to the concept of minimally invasive, reducing the risk of operation and saving the economic cost.
The patent CN114495672a adopts a structure for simulating heart and cardiovascular pipelines, has poor reality, and is only suitable for operation training modes related to pipeline stenosis and thrombosis on the basis of not considering the aging factors such as blood vessel wall thinness, blood vessel embrittlement and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the teaching aid for teaching in-vitro heart demonstration and exercise, which can realize replacement by adopting animal hearts, simulation heart teaching demonstration and intervention related operation.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a teaching is with external heart show, teaching aid is used in exercise, includes master control mechanism, master control mechanism directly acts on connects the platform soon, master control mechanism includes reciprocating pump advances module, booster-type force (forcing) pump, connect the platform soon including the transparent box that the upper end cover can be opened the lower bottom surface slope of transparent box sets up and connects the flowing back pipeline, the setting is in fixed port in the transparent box upper end cover, the withstand voltage pipe that sets up in the fixed port with reciprocating pump advances the module, the donor heart of domestic animal is connected respectively, withstand voltage pipe with reciprocating pump advances and sets up the three-way valve between the module, the three-way valve still connects the check valve, set up on the check valve and be used for the drawing of being connected with intervention surgical instrument and seal the port.
The four sides of the transparent box body adopt a convex structure of a magnifying glass, four vertical included angles of the transparent box body are provided with grooves for installing a miniature camera, the fixed port is fixedly connected with the upper end cover of the transparent box body, the fixed port is a fast-assembling clamp, two ends of the liquid discharge pipeline are respectively connected with the lowest point of the lower bottom surface of the transparent box body and the liquid storage bin, the donor end of the pressure-resistant pipe penetrates through the fixed port and the upper end cover of the transparent box body to be connected with a donor heart of the livestock, the pressure-resistant pipe comprises a left vein connecting pipe, a left artery connecting pipe, a right vein connecting pipe and a right artery connecting pipe which are respectively connected with vascular pipelines on the corresponding donor heart, and a stop lever which is in limit fit with the CT camera is arranged on one side outside the transparent box body.
The liquid storage bin is provided with a filling port for filling developing mixed liquid, a glass window for observing the liquid level height is arranged in the liquid storage bin, a filtering screen is arranged at the filling port of the liquid storage bin and the pipe orifice connected with the liquid discharge pipeline, the filtering screen is connected with the liquid storage bin through a buckle, and the liquid storage bin is connected with the booster-type booster pump.
The reciprocating pump-in module comprises two groups of reciprocating pump-in driving machines, the booster-type booster pump is connected with the reciprocating pump-in driving machines through booster pipes, and the two groups of reciprocating pump-in driving machines are connected with corresponding blood vessels of a donor heart through the pressure-resistant pipes to form corresponding closed pipelines of systemic circulation and pulmonary circulation.
The quick connection platform is arranged on the triaxial holder and used for simulating uncontrollable movement of a patient in hands, and the reciprocating pumping module and the real-time parameters of the booster-type booster pump are used for reading and feeding back data through the built-in pressure-sensitive sensor, the flow meter and the timer.
The donor end of the pressure-resistant pipe is provided with a quick-connection clamping ring, and the quick-connection clamping ring is quickly connected with a vascular pipeline on a donor heart.
The culture period for cardiac surgeons is typically more than 10 years, with relatively long culture periods.
In cardiac surgery, which is one of the operations with higher difficulty and risk, in order to improve the surgical technique, a doctor generally needs to do a lot of surgical skill training in order to better and faster grasp the surgical technique.
The existing common training method is to use pig hearts for training.
However, swine heart exercise suffers from several problems:
firstly, the heart exercise without stopping jumping can be completed only on the live pig heart, so that the cost is high and the efficiency is low. There is no device capable of restoring the heart beat to practice heart surgery;
secondly, the operation at different positions and angles can be involved in the real operation scene, the emergency is uncontrollable, and the simulation degree is low;
thirdly, a plurality of assistants are needed for auxiliary work in a real operation, and in a real exercise, a great amount of time is wasted in the early-stage guide wire intervention and wire drawing, and the distribution structure of the guide wire is different from that of the vascular tissue of a human body;
fourthly, in the teaching simulation display process, the in-vitro heart cannot beat autonomously.
Therefore, how to solve the above-mentioned problems and design a teaching aid for in vitro heart demonstration and exercise is a problem that needs to be solved by those skilled in the art.
Cardiac imaging is one of the important examination means before cardiac surgery, and is a minimally invasive surgery, the trauma of the surgery is relatively small, prognosis recovery is fast, and the heart is visualized and rapidly imaged by injecting contrast agents into certain parts of the heart and great vessels through cardiac catheters so as to display pathological changes of the anatomical structures of the heart and great vessels and circulatory function conditions.
Cardiac imaging includes coronary imaging and cardiac (atrial, ventricular) imaging.
For minimally invasive operations such as cardiac radiography and the like used for cardiac surgery, partial patients or medical students of related professions have limited knowledge of the minimally invasive operations and cannot realize the effect of the cardiac radiography in a visual way, and large errors exist in cognition of the cardiac radiography.
At present, a minimally invasive interventional operation generally adopts a contrast imaging as a core observation mode, and is used as an operation window to realize observation control on an operation process.
Aiming at the requirements of heart disciplines, the invention designs a teaching aid for in-vitro heart demonstration and exercise for the purpose of meeting teaching demonstration and interventional practice.
Based on the priority of the donor hearts of livestock animals, pig hearts are adopted as main donors, and the economic cost is considered.
Compared with the traditional, the lost wax colored drawing model used for heart teaching display has more real teaching display effect.
Due to previous limitations of the medical state of the art, teaching budget, the use of donor hearts from which livestock animals were taken for teaching presentation was subconsciously ignored.
Meanwhile, based on the fact that early heart operation focuses on the operation of opening chest in major surgery, the device has a good visual observation window, and does not require imagination of operators and careful control capability of the heart.
However, with the popularization of interventional operations, semi-anesthesia operations and small incision operations, a doctor has put higher demands on the operation ability under the observation based on a third party imaging platform.
This patent, on the basis that the donor heart that stands on domestic animal is used for teaching show, adopt master control mechanism to simulate heart and beat to design three-way valve, realize with intervene the collaborative work of operation equipment, reach under the prerequisite that heart isolated, carry out long-time controllable beating, be used for carrying out teaching show and the target of operation exercise.
Compared with the prior art, the invention has the following beneficial effects:
the main control mechanism is adopted to realize the parameter adjustment of heart beating and achieve the design target of in vitro heart beating.
The reciprocating pump-in module is designed, and a programmable design scheme is adopted to simulate the beating frequency of the heart and simulate uncontrollability in the operation process.
The pumping operation of the reciprocating pump into the driving machine is used for replacing the diastole and systole movements of the heart during beating, and the pressure imbalance inside the pressure-resistant pipe generated by the reciprocating pump into the driving machine is used for forcing the heart to have diastole and systole movements by referring to the related principle of chest compression.
The supercharged pressure pump is designed, so that specific physiological parameters of a hypertension group can be simulated, and the method has more pertinence.
The quick-connection platform is used as an operation platform for connecting, displaying and simulating exercise of the donor heart, the function application is highly integrated, the structural design of the device is simplified, and different requirements of teaching display and related exercise are considered.
The lower bottom surface of the transparent box body adopts an inclined design and is connected with a corresponding liquid discharge pipeline to realize the recovery of the developing mixed liquid in the operation process, so that the cleaning management is convenient.
The pressure-proof pipe is used to connect the artery and vein of the donor heart, and forms a closed circuit with two groups of reciprocating pump driving machines to simulate the whole process of heart beating.
The convex structure of the magnifying glass is adopted, so that the tiny change of the heart beating process is conveniently observed, the imaging effect is optimized, and students can conveniently observe and learn.
The groove for installing the miniature camera is arranged, so that the observation of the appearance of the heart in the process of exercise of contrast surgery is met.
The quick-mounting clamp is designed, the quick-mounting and dismounting and the fixed connection of the upper end cover of the transparent box body and the pressure-resistant pipe are realized, the relative length of the pressure-resistant pipe in the transparent box body can be adjusted according to the needs and the size of a donor heart, the display effect is optimized, the donor heart is ensured to be always in the center of the transparent box body, and the observation and the study are convenient.
The developing mixed solution stored in the liquid storage bin comprises animal blood similar to human blood in composition to simulate the relative influence of human blood on the developing effect of the developing agent, the anticoagulant prevents blood from coagulating to prolong the service time of the developing mixed solution, and the nutrient composition provides nutrition for the donor heart to further prolong the usable time of the donor heart.
The triaxial holder is designed, the generation conditions of uncontrollable factors are increased, the intervention caused by the involuntary behavior movement of a patient to the operation in the actual operation process is simulated, and the capability of an operator for coping with and treating the sudden situation in the operation is improved.
And a quick-connection clamping ring is designed, so that the installation link between the donor heart and the device is optimized, and the operation efficiency is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1: the structure of the invention is schematically shown.
Detailed Description
For a better understanding of the present invention, the content of the present invention will be further clarified below with reference to the examples and the accompanying drawings, but the scope of the present invention is not limited to the following examples only. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details.
Example 1
As shown in fig. 1, this embodiment provides teaching aid for teaching and practicing heart in vitro, including master control mechanism, master control mechanism directly acts on connects the platform soon, master control mechanism includes reciprocating pump and advances module, booster-type force (forcing) pump, connect the platform soon including the transparent box that the upper end cover can be opened the lower bottom surface slope of transparent box sets up and connects the flowing back pipeline, the setting is in fixed port in the transparent box upper end cover, the withstand voltage pipe that sets up in the fixed port with reciprocating pump advances the module, the donor heart of domestic animal is connected respectively, withstand voltage pipe with reciprocating pump advances and sets up the three-way valve between the module, the three-way valve still connects the check valve, set up on the check valve and be used for the drawing of being connected with intervention operation equipment and seal the port.
The four sides of the transparent box body adopt a convex structure of a magnifying glass, four vertical included angles of the transparent box body are provided with grooves for installing a miniature camera, the fixed port is fixedly connected with the upper end cover of the transparent box body, the fixed port is a fast-assembling clamp, two ends of the liquid discharge pipeline are respectively connected with the lowest point of the lower bottom surface of the transparent box body and the liquid storage bin, the donor end of the pressure-resistant pipe penetrates through the fixed port and the upper end cover of the transparent box body to be connected with a donor heart of the livestock, the pressure-resistant pipe comprises a left vein connecting pipe, a left artery connecting pipe, a right vein connecting pipe and a right artery connecting pipe which are respectively connected with vascular pipelines on the corresponding donor heart, and a stop lever which is in limit fit with the CT camera is arranged on one side outside the transparent box body.
The liquid storage bin is provided with a filling port for filling developing mixed liquid, a glass window for observing the liquid level height is arranged in the liquid storage bin, a filtering screen is arranged at the filling port of the liquid storage bin and the pipe orifice connected with the liquid discharge pipeline, the filtering screen is connected with the liquid storage bin through a buckle, and the liquid storage bin is connected with the booster-type booster pump.
The reciprocating pump-in module comprises two groups of reciprocating pump-in driving machines, the booster-type booster pump is connected with the reciprocating pump-in driving machines through booster pipes, and the two groups of reciprocating pump-in driving machines are connected with corresponding blood vessels of a donor heart through the pressure-resistant pipes to form corresponding closed pipelines of systemic circulation and pulmonary circulation.
The quick connection platform is arranged on the triaxial holder and used for simulating uncontrollable movement of a patient in hands, and the reciprocating pumping module and the real-time parameters of the booster-type booster pump are used for reading and feeding back data through the built-in pressure-sensitive sensor, the flow meter and the timer.
The donor end of the pressure-resistant pipe is provided with a quick-connection clamping ring, and the quick-connection clamping ring is quickly connected with a vascular pipeline on a donor heart.
An opening for simulating and practicing the small incision operation is arranged on the upper end cover of the transparent box body.
The developing mixed solution comprises a developing agent, animal blood (such as pig blood) similar to human blood in composition, an anticoagulant and a nutrient composition.
The liquid storage bin is arranged on the shaking platform, and the shaking platform acts on the liquid storage bin to simulate the electronic blood sampling scale to generate reciprocating type fluctuation motion.
The reciprocating pump-in driving machine adopts an inflator type supercharging structure design, and a programmable pneumatic telescopic rod is arranged on the reciprocating pump-in driving machine and used for controlling driving parameters of the reciprocating pump-in driving machine.
The booster-type booster pump is an intelligent water pump.
One end of the compound pumping driving machine is provided with a pressure relief valve, and a leakage port of the pressure relief valve is positioned at the highest point of the reciprocating pumping module.
The reciprocating pump inlet module is arranged above the transparent box body.
The air leakage port of the pressure release valve is provided with a flow guide pipe, and the pipeline outlet of the flow guide pipe is arranged in the liquid storage bin.
The quick-connection clamping ring comprises a ring base fixedly connected with the pressure-resistant pipe, a supporting ring arranged on the inner side surface of one end of the ring base and a pipe clamp arranged on the outer side surface.
The spacing between the support ring and the seat tube clamp is less than the wall thickness of the vascular tube on the donor heart.
The supercharged booster pump, the programmable pneumatic telescopic rod, the pressure-sensitive sensor, the flowmeter, the timer and the triaxial holder are connected with a program-controlled computer, and a simulation driving program for simulating heart beating is arranged in the program-controlled computer.
The simulation driver comprises a teaching display module and a surgery exercise module.
Example 2
This example was optimized on the basis of example 1.
The teaching demonstration method comprises the following steps:
1. firstly, adding developing mixed liquid into a liquid storage bin, starting a reciprocating pumping module and a booster-type pressurizing pump, and completing parameter calibration of the pressure-sensitive sensor, the flowmeter and the timer;
2. secondly, according to the requirement, preferentially picking the donor heart from the livestock animals, and completing the operation flow of picking;
3. connecting artery and vein of the donor heart with the pressure-resistant tube to form a completed systemic circulation and pulmonary circulation closed pipeline connection mode, and fixing by using a quick-connection clasp;
4. the pressurizing type pressurizing pump and the reciprocating type pumping module are sequentially started to pump the developing mixed liquid in the liquid storage bin in the device, the pressure release valve is opened to finish the discharge of air in the closed pipeline until the developing mixed liquid is continuously discharged for more than 3 seconds in the pressure release valve, and then the pressure release valve is closed to realize the preparation work of the device before use;
5. starting a program control computer, and loading the program control computer into the teaching display module to complete the simulated beating teaching display control of the heart;
6. when the obvious inactivation characteristic of the donor heart affects the performance characteristic of the teaching real effect, the booster pump and the reciprocating pump inlet module are sequentially closed, and then the pressure release valve is opened to release the liquid pressure in the device;
7. and finally, opening the quick-connection clamping ring, taking the donor heart down from the pressure-resistant pipe in the transparent box body, overturning and discharging the developing mixed liquid in the donor heart in the transparent box body, discharging the developing mixed liquid in the device from the donor end of the pressure-resistant pipe, and transferring the developing mixed liquid into the liquid storage bin again through the liquid discharge pipeline at the bottom of the transparent box body.
Example 3
This example was optimized on the basis of example 2.
The simulation training method comprises the following steps:
1. firstly, adding developing mixed liquid into a liquid storage bin, starting a reciprocating pumping module and a booster-type pressurizing pump, and completing parameter calibration of the pressure-sensitive sensor, the flowmeter and the timer;
2. secondly, according to the requirement, preferentially picking the donor heart from the livestock animals, and completing the operation flow of picking;
3. according to different requirements of simulation exercises, tissue defects or other problems formed by corresponding pathological mechanisms are artificially manufactured on a donor heart;
4. connecting artery and vein of the donor heart with the pressure-resistant tube to form a completed systemic circulation and pulmonary circulation closed pipeline connection mode, and fixing by using a quick-connection clasp;
5. the pressurizing type pressurizing pump and the reciprocating type pumping module are sequentially started to pump the developing mixed liquid in the liquid storage bin in the device, the pressure release valve is opened to finish the discharge of air in the closed pipeline until the developing mixed liquid is continuously discharged for more than 3 seconds in the pressure release valve, and then the pressure release valve is closed to realize the preparation work of the device before use;
6. starting a program control computer, and loading the program control computer into the operation training module to complete the simulated beating control of the heart;
7. the glass box body and the CT photographing equipment are mutually matched and positioned;
8. the interventional operation equipment is guided into a pull-seal port in the device, so that relevant operation exercises can be performed;
9. after the exercise is finished, the pressurizing parameters of the pressurizing type pressurizing pump are improved to be used for checking whether the donor heart is damaged in the operation process, and when the pressure parameters detected by the pressure sensor are inconsistent with the pressurizing parameters of the pressurizing type pressurizing pump, the blood vessel can be judged to be scratched and damaged;
8. if the pressure parameters are consistent in the time T, sequentially closing a booster-type pressurizing pump and a reciprocating pump inlet module, and then opening a pressure release valve to release the liquid pressure in the device;
9. and finally, opening the quick-connection clamping ring, taking the donor heart down from the pressure-resistant pipe in the transparent box body, overturning and discharging the developing mixed liquid in the donor heart in the transparent box body, discharging the developing mixed liquid in the device from the donor end of the pressure-resistant pipe, and transferring the developing mixed liquid into the liquid storage bin again through the liquid discharge pipeline at the bottom of the transparent box body.
10. The removed donor heart was transferred to an anatomic platform, dissected and examined for exercise effects.
Example 4
This example was optimized on the basis of examples 3 and 4.
The teaching display module comprises a heartbeat frequency control unit and a pressure control unit.
The operation training module comprises a heart beat frequency control unit a pressure control unit, a random motion simulation unit for surgical patients,
The heart beat times control unit is controlled by the programmable pneumatic telescopic rod and the timer.
The pressure control unit is controlled by the programmable pneumatic telescopic rod, the booster-type pressurizing pump and the pressure sensor.
The random motion simulation unit of the surgical patient is controlled by the three-axis cradle head, and the three-axis cradle head is based on random motion generated under the random variable condition.
When performing surgical practice, the simulation exercise of heart beat can be performed between the steps 6 and 7 by arranging the opening for the simulation exercise of small incision surgery on the upper end cover in combination with the embodiment 2.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (6)
1. Teaching aid is used in teaching external heart show, exercise, its characterized in that: including master control mechanism, master control mechanism direct action connects the platform soon, master control mechanism includes reciprocating type pump and advances module, booster-type force (forcing) pump, connect the platform soon including the transparent box that the upper end cover can be opened the lower bottom surface slope of transparent box sets up and the flowing back pipeline of connection, setting up fixed port in the transparent box upper end cover, the withstand voltage pipe that sets up in the fixed port with reciprocating type pump advances the module, the donor heart of domestic animal is connected respectively, withstand voltage pipe with reciprocating type pump advances and sets up the three-way valve between the module, the check valve is still connected to the three-way valve, set up on the check valve and be used for the drawing of being connected with intervention operation equipment and seal the port.
2. The teaching aid for teaching and practicing in vitro heart presentation as claimed in claim 1, wherein: the four sides of the transparent box body adopt a convex structure of a magnifying glass, four vertical included angles of the transparent box body are provided with grooves for installing a miniature camera, the fixed port is fixedly connected with the upper end cover of the transparent box body, the fixed port is a fast-assembling clamp, two ends of the liquid discharge pipeline are respectively connected with the lowest point of the lower bottom surface of the transparent box body and the liquid storage bin, the donor end of the pressure-resistant pipe penetrates through the fixed port and the upper end cover of the transparent box body to be connected with a donor heart of the livestock, the pressure-resistant pipe comprises a left vein connecting pipe, a left artery connecting pipe, a right vein connecting pipe and a right artery connecting pipe which are respectively connected with vascular pipelines on the corresponding donor heart, and a stop lever which is in limit fit with the CT camera is arranged on one side outside the transparent box body.
3. The teaching aid for teaching and practicing in vitro heart presentation as claimed in claim 2, wherein: the liquid storage bin is provided with a filling port for filling developing mixed liquid, a glass window for observing the liquid level height is arranged in the liquid storage bin, a filtering screen is arranged at the filling port of the liquid storage bin and the pipe orifice connected with the liquid discharge pipeline, the filtering screen is connected with the liquid storage bin through a buckle, and the liquid storage bin is connected with the booster-type booster pump.
4. The teaching aid for teaching and practicing in vitro heart presentation as claimed in claim 1, wherein: the reciprocating pump-in module comprises two groups of reciprocating pump-in driving machines, the booster-type booster pump is connected with the reciprocating pump-in driving machines through booster pipes, and the two groups of reciprocating pump-in driving machines are connected with corresponding blood vessels of a donor heart through the pressure-resistant pipes to form corresponding closed pipelines of systemic circulation and pulmonary circulation.
5. The teaching aid for teaching and practicing in vitro heart presentation as claimed in claim 1, wherein: the quick connection platform is arranged on the triaxial holder and used for simulating uncontrollable movement of a patient in hands, and the reciprocating pumping module and the real-time parameters of the booster-type booster pump are used for reading and feeding back data through the built-in pressure-sensitive sensor, the flow meter and the timer.
6. The teaching aid for teaching and practicing in vitro heart presentation as claimed in claim 1, wherein: the donor end of the pressure-resistant pipe is provided with a quick-connection clamping ring, and the quick-connection clamping ring is quickly connected with a vascular pipeline on a donor heart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310546683.XA CN116682315A (en) | 2023-05-16 | 2023-05-16 | Teaching aid for teaching in vitro heart demonstration and exercise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310546683.XA CN116682315A (en) | 2023-05-16 | 2023-05-16 | Teaching aid for teaching in vitro heart demonstration and exercise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116682315A true CN116682315A (en) | 2023-09-01 |
Family
ID=87780074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310546683.XA Pending CN116682315A (en) | 2023-05-16 | 2023-05-16 | Teaching aid for teaching in vitro heart demonstration and exercise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116682315A (en) |
-
2023
- 2023-05-16 CN CN202310546683.XA patent/CN116682315A/en active Pending
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