CN214410476U

CN214410476U - Dynamic model for heart blood pumping and circulation system operation

Info

Publication number: CN214410476U
Application number: CN202120687822.7U
Authority: CN
Inventors: 李子牧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-15
Anticipated expiration: 2031-04-02

Abstract

The utility model provides a heart pump blood and circulation system operation dynamic model, including simulation heart and simulation blood vessel net, the simulation heart is including the first wash bottle that is used for simulating the left atrium, the second wash bottle that is used for simulating the left ventricle, the fourth wash bottle that is used for simulating the third wash bottle of the right atrium and is used for simulating the right ventricle, the simulation blood vessel net is including being used for simulating aorta, simulation body vein, simulation pulmonary artery, simulation pulmonary vein's hose respectively, the second wash bottle with the hose connection of simulation aorta, the fourth wash bottle with the hose connection of simulation pulmonary artery. The utility model discloses available wash bottle or electric pump are as the power supply of heart, and simulation heart pump blood uses the hose simulation blood vessel of thickness difference, makes the flowing visualization of blood in heart and circulation system more, and the student understands, memory in the teaching activity of being convenient for, simple manufacture, and is with low costs.

Description

Dynamic model for heart blood pumping and circulation system operation

The technical field is as follows:

the utility model relates to a teaching aid especially relates to a heart pump blood and circulation system operation dynamic model.

Background art:

the blood circulation is divided into two parts of systemic circulation and pulmonary circulation, and the blood enters the aorta from the left ventricle, is branched to the capillary network of body hair through the aorta, and then returns to the right atrium through the body vein, which is the systemic circulation; the circulation of blood from the right ventricle into the pulmonary artery, through the pulmonary capillary network, and finally back from the pulmonary veins into the left atrium is called pulmonary circulation. The knowledge point is a difficult point in teaching, and students are easy to be confused by only depending on written explanation or combined with plan explanation in the prior teaching.

The utility model has the following contents:

in order to solve the above problems, the utility model provides a dynamic model for the operation of heart pump blood and circulatory system.

The technical scheme of the utility model is so realize: a dynamic model for heart blood pumping and circulation system operation comprises a simulated heart and a simulated blood vessel network, wherein the simulated heart comprises a first wash bottle for simulating a left atrium, a second wash bottle for simulating a left ventricle, a third wash bottle for simulating a right atrium and a fourth wash bottle for simulating a right ventricle, and first one-way valves are arranged between the first wash bottle and the second wash bottle and between the third wash bottle and the fourth wash bottle;

the simulated blood vessel network comprises hoses which are respectively used for simulating an aorta, a simulated body vein, a simulated pulmonary artery and a simulated pulmonary vein, the second wash bottle is connected with the hose of the simulated aorta, a second one-way valve is arranged at the joint, the fourth wash bottle is connected with the hose of the simulated pulmonary artery, and a third one-way valve is arranged at the joint; a first multi-channel pipe fitting used for simulating a body capillary network is connected between the hose simulating the aorta and the hose simulating the body vein, and a second multi-channel pipe fitting used for simulating the lung capillary network is connected between the hose simulating the pulmonary artery and the hose simulating the pulmonary vein.

Preferably, the first wash bottle and the third wash bottle have a capacity of 250ml, and the second wash bottle and the fourth wash bottle have a capacity of 500 ml.

Preferably, the internal diameter of the aorta simulator and the pulmonary artery simulator is 5mm, and the internal diameter of the body vein simulator and the pulmonary vein simulator is 2 mm.

Preferably, first check valve includes valve casing and valve rod, the valve casing intercommunication the bottom of first wash-bottle with the top of second wash-bottle, the valve rod is established in the valve casing, its top and bottom stretch into respectively to first wash-bottle and second wash-bottle in, just the valve rod top with be equipped with the spring between the first wash-bottle bottom, the valve rod bottom be equipped with the blocking portion that the liquid inlet of valve casing bottom corresponds. When the first one-way valve is in a closed state, the blocking part is attached to the bottom of the valve casing to prevent liquid from flowing backwards.

Preferably, the blocking part is an elastic sheet, and when the one-way valve is in a closed state, the top of the elastic sheet is attached to the bottom of the valve casing.

Preferably, the blocking part is in a shape of Chinese character 'shan', and leakage-proof baffles are arranged at the left end and the right end of the elastic sheet, so that liquid can be further prevented from flowing backwards.

Preferably, an iodine adding device is arranged between the first multichannel pipe fitting and the simulated body vein, and a starch filter is arranged between the second multichannel pipe fitting and the simulated pulmonary vein.

Preferably, the first wash bottle simulating the left atrium is replaced by an electric pump.

The utility model has the advantages that:

the utility model provides a heart pump blood and circulation system operation dynamic model, available wash bottle or electric pump are as the power supply of heart, and simulation heart pump blood makes the more visualization of the flow of blood in heart and circulation system with the hose simulation blood vessel of thickness difference, and the student understands, the memory in the teaching activity of being convenient for, simple manufacture, and is with low costs.

Description of the drawings:

figure 1 is a schematic structural diagram of embodiment 1 of the present invention,

FIG. 2 is an enlarged view of part A of FIG. 1,

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1, washing a bottle; 2, washing the bottle for the second time; 3, washing the bottle for the third time; 4, washing the bottle; 5 the aorta; 6 body veins; 7 a first multichannel tube; 8 pulmonary artery; 9 pulmonary veins; 10 a second multichannel tube; 11 a first one-way valve; 111 a valve housing; 112 a valve stem; 113 a spring; 114 a blocking portion; 12 a third one-way valve; 13 a second one-way valve; an iodizer 14; a starch filter 15.

The specific implementation mode is as follows:

the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

Example 1

Referring to fig. 1 and 2, a dynamic model for the operation of a heart pump and circulatory system comprises a simulated heart and a simulated blood vessel network, wherein the simulated heart comprises a first wash bottle 1 for simulating the left atrium, a second wash bottle 2 for simulating the left ventricle, a third wash bottle 3 for simulating the right atrium and a fourth wash bottle 4 for simulating the right ventricle. First one-way valves 11 are arranged between the first wash bottle 1 and the second wash bottle 2 and between the third wash bottle 3 and the fourth wash bottle 4. The first one-way valve 11 between the first wash bottle 1 and the second wash bottle 2 opens into the second wash bottle 2, and the first one-way valve 11 between the third wash bottle 3 and the fourth wash bottle 4 opens into the fourth wash bottle 4.

Specifically, first check valve 11 includes valve casing 111 and valve rod 112, valve casing 111 intercommunication the bottom of first wash-bottle 1 with the top of second wash-bottle 2, valve rod 112 is established in the valve casing 111, its top and bottom stretch into respectively in first wash-bottle 1 and the second wash-bottle 2, just valve rod 112 top with be equipped with spring 113 between the first wash-bottle 1 bottom, valve rod 112 bottom be equipped with the stop part 114 that corresponds with the liquid inlet of valve casing 111 bottom. When the first check valve 11 is in the closed state, the blocking portion 114 is attached to the bottom of the valve housing 111 to prevent the liquid from flowing backwards. The blocking portion 114 may be a planar spring or a chevron structure, and the blocking portion of the chevron structure is equivalent to the leakage-proof baffles arranged at the left and right ends of the planar spring, so as to further prevent the liquid from flowing backwards. When the liquid simulating blood enters the left ventricle from the left atrium, the valve rod 112 moves downwards, the spring 113 is compressed, the blocking part 114 is separated from the bottom of the valve shell 111, the one-way valve is opened, and when the liquid simulating blood stops entering, the spring 113 resets and the one-way valve is closed.

Further, the first check valve 111 may be of a commercially available check valve structure.

The simulated blood vessel network comprises hoses for simulating an aorta 5, a simulated body vein 6, a simulated pulmonary artery 8 and a simulated pulmonary vein 9 respectively, the second wash bottle 2 is connected with the hose for simulating the aorta 5, a second one-way valve 13 is arranged at the joint, and the second one-way valve 13 is opened at the simulated aorta 5; the fourth wash bottle 4 is connected with the hose of the simulated pulmonary artery 8, a third one-way valve 12 is arranged at the joint, and the third one-way valve 12 is opened at the simulated pulmonary artery 8; a first multichannel pipe fitting 7 for simulating a body capillary network is connected between the hose simulating the aorta 5 and the hose simulating the body vein 6, and a second multichannel pipe fitting 10 for simulating a lung capillary network is connected between the hose simulating the pulmonary artery 8 and the hose simulating the pulmonary vein 9. The second check valve 13 and the third check valve 12 may adopt a commercially available check valve structure.

Specifically, the volumes of the first wash bottle 1, the second wash bottle 2, the third wash bottle 3 and the fourth wash bottle 4 and the inner diameters of the hoses for simulating the aorta 5, the pulmonary artery 8, the body vein 6 and the pulmonary vein 9 can be selected according to actual conditions. In this embodiment, the first wash bottle 1 and the third wash bottle 3 have a capacity of 250ml, and the second wash bottle 2 and the fourth wash bottle 4 have a capacity of 500 ml. The inner diameters of the hoses simulating the aorta 5 and the pulmonary artery 8 are 5mm, and the inner diameters of the hoses simulating the body vein 6 and the pulmonary vein 9 are 2 mm. The dynamic flow of blood in the heart and the circulatory system can be more visualized, and the simulation effect is better.

When the device is used, firstly, the second wash bottle 2 simulating the left ventricle is filled with red liquid, and the flow of blood at different parts is demonstrated by pressing each wash bottle.

Firstly, the second wash bottle 2 is pressed, and the red liquid returns to the third wash bottle 3 simulating the right atrium through the simulated aorta 5, the first multi-channel pipe fitting 7 simulating the body capillary network and the simulated body vein 6, which is the simulated body circulation process. Then the red liquid enters a fourth wash bottle 4 simulating the right ventricle from a third wash bottle 3 simulating the right atrium, the fourth wash bottle 4 is pressed, and the red liquid returns to the left atrium through a simulated pulmonary artery 8, a second multi-channel pipe fitting 10 simulating a pulmonary capillary network and a simulated pulmonary vein 9, so that the process of simulating the pulmonary circulation is realized.

Example 2

This example differs from example 1 in that: in this embodiment, an iodine adding device 14 is disposed between the first multi-channel tube 7 for simulating the body capillary network and the simulated body vein 6, a starch filter 15 is disposed between the second multi-channel tube 10 for simulating the pulmonary capillary network and the simulated pulmonary vein 9, and red liquid of the simulated blood contains starch. After the red liquid simulating blood passes through the first multi-channel pipe fitting 7, the iodine liquid is injected into the iodine adding device 14, the starch in the red liquid is combined with the iodine to change the liquid into blue liquid, the starch is filtered after the blue liquid passes through the starch filter 15, the blue liquid is changed into the red liquid, and the change process that the color of the blood is different due to different oxygen contents can be visually shown after the blood passes through the systemic circulation or the pulmonary circulation. The starch filter 15 may be of an existing starch filter construction.

Example 3

This example differs from example 1 in that: in this embodiment, the first wash bottle 1 for simulating the left atrium is replaced by an electric pump, a check valve is arranged between the outlet of the electric pump and the simulated aorta 5, and the check valve is opened in the simulated aorta 5.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a heart pump blood and circulation system operation dynamic model, is including simulation heart and simulation blood vessel net, its characterized in that: the heart simulator comprises a first wash bottle (1) for simulating a left atrium, a second wash bottle (2) for simulating a left ventricle, a third wash bottle (3) for simulating a right atrium and a fourth wash bottle (4) for simulating a right ventricle, wherein first one-way valves (11) are arranged between the first wash bottle (1) and the second wash bottle (2) and between the third wash bottle (3) and the fourth wash bottle (4);

the simulated blood vessel network comprises hoses which are used for simulating an aorta (5), a body vein (6), a pulmonary artery (8) and a pulmonary vein (9), the second wash bottle (2) is connected with the hose of the simulated aorta (5), a second one-way valve (13) is arranged at the joint of the second wash bottle and the hose of the simulated aorta (8), and a third one-way valve (12) is arranged at the joint of the fourth wash bottle and the hose of the simulated pulmonary artery (8); a first multi-channel pipe fitting (7) for simulating a body capillary network is connected between the hose simulating the aorta (5) and the hose simulating the body vein (6), and a second multi-channel pipe fitting (10) for simulating a lung capillary network is connected between the hose simulating the pulmonary artery (8) and the hose simulating the pulmonary vein (9).

2. The dynamic model for cardiac pumping and circulatory system operation according to claim 1, wherein the first wash bottle (1) and the third wash bottle (3) have a capacity of 250ml, and the second wash bottle (2) and the fourth wash bottle (4) have a capacity of 500 ml.

3. The dynamic model for cardiac pumping and circulatory system operation according to claim 1, wherein the internal diameters of the flexible tubes simulating the aorta (5) and pulmonary artery (8) are 5mm, and the internal diameters of the flexible tubes simulating the body vein (6) and pulmonary vein (9) are 2 mm.

4. A dynamic model of heart pump blood and circulation system operation according to claim 1, characterized in that the first one-way valve comprises a valve housing (111) and a valve rod (112), the valve housing (111) communicates the bottom of the first wash bottle (1) and the top of the second wash bottle (2), the valve rod (112) is arranged in the valve housing (111), the top and the bottom of the valve rod respectively extend into the first wash bottle (1) and the second wash bottle (2), a spring (113) is arranged between the top of the valve rod (112) and the bottom of the first wash bottle (1), and a blocking part (114) corresponding to the liquid inlet at the bottom of the valve housing (111) is arranged at the bottom of the valve rod (112).

5. The dynamic model of heart pump and circulatory system operation according to claim 4, wherein said blocking portion (114) is a spring.

6. The dynamic model of heart pump and circulatory system operation according to claim 4, wherein said barrier (114) is a chevron structure.

7. Dynamic model of cardiac pumping and circulation system operation according to claim 1, characterized by an iodine adder (14) between the first multichannel tube (7) and the simulated body vein (6) and a starch filter (15) between the second multichannel tube (10) and the simulated pulmonary vein (9).

8. Dynamic model of cardiac pumping and circulation system operation, according to claim 1, characterized by the fact that the first wash bottle (1) simulating the left atrium is replaced by an electric pump.