Simulation teaching aid for vascular disease medicine

Abstract

The utility model discloses a medical simulation teaching aid for vascular diseases, which comprises a frame-shaped vertical frame, and a simulation artery, a simulation vein, a simulation capillary, a liquid storage tank and a liquid pump which are arranged on the frame-shaped vertical frame, artificial simulation plasma is arranged in the liquid storage tank, and the liquid storage tank and the liquid pump are arranged at the middle upper part of the frame-shaped vertical frame through a support. The liquid outlet end of the liquid pump is sequentially connected with the main pressure gauge, the main flow meter and the simulated capillary through the simulated artery, the liquid inlet end of the liquid pump is sequentially connected with the liquid storage tank, the tail end pressure gauge, the tail end flow meter and the simulated capillary through the simulated vein, and lesion blood vessel sections are detachably arranged on the simulated artery and the simulated vein respectively. According to the utility model, models, corollary equipment and operation schemes are enriched, diversified simulation effects are realized, visual display can be realized, visual observation by naked eyes can be improved, students can easily understand and memorize, and the experimental simulation teaching effect of cardiovascular diseases is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vascular disease teaching tools, in particular to a medical simulation teaching tool for vascular disease. Background Art

[0002] With the improvement of ultrasound equipment and image quality, as well as the characteristics of simple operation, intuitive image, non-invasiveness and no radiation, the use of color Doppler ultrasound to examine vascular lesions has received more and more attention. At the same time, in medical teaching and surgical design, various models and supporting equipment for experimental simulation of vascular diseases have gradually improved. Through the models, trainees can more intuitively recognize and understand vascular diseases and establish the unique three-dimensional diagnostic thinking of ultrasound doctors. However, the existing experimental simulation equipment of this type still has the following problems in actual use:

[0003] 1. The model, supporting equipment and operation scheme are relatively simple, and it is impossible to achieve a variety of simulation effects. In addition, the vascular model is the size of a normal adult's blood vessel, which results in poor visibility when observing each process with the naked eye and lacks intuitive display function;

[0004] 2. The models and supporting equipment are usually fixed after assembly, and the location of the lesion is not convenient for replacement and position adjustment according to actual viewing and display needs. Utility Model Content

[0005] The utility model provides a medical simulation teaching aid for vascular diseases.

[0006] The utility model is realized through the following technical scheme: it includes a frame-shaped stand, and simulated arteries, simulated veins, simulated capillaries, a liquid storage tank, and a liquid pump arranged on the frame-shaped stand, wherein artificial simulated plasma is arranged in the liquid storage tank, and the liquid storage tank and the liquid pump are arranged in the upper middle part of the frame-shaped stand through a support, the liquid outlet of the liquid pump is connected to the main pressure gauge, the main flow meter, and the simulated capillaries in sequence through the simulated artery, and the liquid inlet of the liquid pump is connected to the liquid storage tank, the terminal pressure gauge, the terminal flow meter, and the simulated capillaries in sequence through the simulated vein, and the diseased blood vessel segments are detachably arranged on the simulated arteries and the simulated veins, and the diseased blood vessel segments include a tube body and simulated diseased symptom tissue, and the simulated diseased symptom tissue integrally formed structure is arranged inside the tube body, and joints are arranged at both ends of the tube body.

[0007] Furthermore, the simulated lesion symptom tissue includes simulated tissue of vascular stenosis, blockage, dilation, tumor or dissection lesion symptoms, the simulated tissue is made of transparent material through 3D printing technology, and one simulated lesion symptom tissue is arranged on a diseased blood vessel segment, or any two or more simulated lesion symptom tissues are arranged on the same diseased blood vessel segment.

[0008] The beneficial effects of the utility model are: 1. It enriches the models, supporting equipment and operation schemes, realizes diversified simulation effects, and the blood vessel model is 3 to 6 times the size of the blood vessels of normal adults, so that each process can be displayed more intuitively in teaching, improves the visibility of naked eye observation, and makes it easy for students to understand;

[0009] 2. After the model and supporting equipment are assembled, the diseased blood vessel segment can be replaced and placed on different blood vessels according to the actual teaching viewing and demonstration needs, making it more flexible and diverse to use, thereby improving the experimental simulation teaching effect of cardiovascular diseases;

[0010] 3. It is convenient for students to learn and remember, and for teachers to explain. It is vivid, intuitive, easy to operate, and can be combined with other models to visualize the progress of labor. It is easy to use and suitable for training and teaching assistance. It has a scientific and reasonable structure, is safe and convenient to use, and provides great help for teaching and training. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the structure of the diseased vascular segment;

[0013] Figure 3 is a schematic diagram of the structure of an external detector;

[0014] Numbers in the figure: 1~frame stand, 2~support beam, 3~support chassis, 4~simulated artery, 5~simulated vein, 6~simulated capillary, 7~liquid storage tank, 8~liquid pump, 9~main pressure gauge, 10~main flow meter, 11~terminal pressure gauge, 12~terminal flow meter, 13~lesioned blood vessel segment, 14~tube body, 15~simulated lesion symptom tissue, 16~connector, 17~auxiliary pressure gauge, 18~auxiliary flow meter, 19~check valve, 20~stop valve, 21~three-way valve, 22~external detector, 23~L-shaped support, 24~adjusting rod, 25~limiting plate, 26~detector, 27~auxiliary simulated artery, 28~auxiliary simulated vein, 29~hose. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

[0016] like Figures 1 to 3The medical simulation teaching aid for vascular diseases shown in the figure comprises a frame 1, and a simulated artery 4, a simulated vein 5, a simulated capillary 6, a liquid storage tank 7, and a liquid pump 8 arranged on the frame 1. The liquid storage tank 7 is provided with artificial simulated plasma. A supporting chassis 3 is arranged at the lower part of the frame 1, and the two are connected by a rotating seat, so that the lower part of the frame 1 can rotate on the supporting chassis 3. A plurality of supporting beams 2 are arranged on the frame 1. The liquid storage tank 7 and the liquid pump 8 are arranged in the upper part of the frame 1 through the support and bolts. The support is fixedly arranged on the frame 1 through the support beam 2, so that the liquid storage tank 7 and the liquid pump 8 are installed on the frame 1, and the liquid outlet of the liquid pump 8 is connected to the main pressure via the simulated artery 4 in sequence. The force gauge 9, the main flow meter 10, the simulated capillary 6, the liquid inlet end of the liquid pump 8 is connected to the liquid storage tank 7, the terminal pressure gauge 11, the terminal flow meter 12, and the simulated capillary 6 in sequence through the simulated vein 5, and the diseased blood vessel segment 13 is detachably arranged on the simulated artery 4 and the simulated vein 5, respectively. The diseased blood vessel segment 13 includes a tube body 14 and a simulated diseased symptom tissue 15. The simulated diseased symptom tissue 15 is an integrally formed structure arranged inside the tube body 14, and joints 16 are respectively arranged at both ends of the tube body 14 to facilitate the selection of replacement of the diseased blood vessel segment 13 according to the teaching display requirements, so as to display different simulated diseased symptom tissues 15, thereby realizing an adjustable replacement function and being more flexible in use.

[0017] Furthermore, in order to ensure the stability of the connection and avoid damage caused by shaking or gravity pulling during use, the main pressure gauge 9, the main flow meter 10, the terminal pressure gauge 11, and the terminal flow meter 12 are provided with brackets and a frame-shaped stand 1 connected by bolts, which not only realizes position limitation but also facilitates installation and disassembly.

[0018] The simulated lesion symptom tissue 15 includes simulated tissue of vascular stenosis, blockage, dilation, tumor or dissection lesion symptoms. The simulated tissue is made of transparent material through 3D printing technology, and one simulated lesion symptom tissue 15 is arranged on a diseased blood vessel segment 13, or any two or more simulated lesion symptom tissues 15 are arranged on the same diseased blood vessel segment 13.

[0019] The liquid pump 8 is a peristaltic liquid pump 8, which uses the characteristics of the peristaltic liquid pump 8 to simulate the rhythm of the heartbeat, making the operation of the artificial simulated plasma more realistic. The liquid storage tank 7 is made of transparent plastic.

[0020] The simulated artery 4, simulated vein 5, and simulated capillary 6 are made of PE transparent hose, and at least four connectors 16 matching the diseased blood vessel segment 13 are respectively arranged on the simulated artery 4 and simulated vein 5, and the connectors 16 are made of plastic material, which is convenient and quick to replace, and the connection is stable and reliable without leakage.

[0021] A three-way valve 21 is provided at the liquid outlet end of the liquid storage tank 7 to connect to the simulated artery 4, and a three-way valve 21 is provided at the liquid inlet end to connect to the simulated vein 5, and the two three-way valves 21 are connected by a hose 29. A liquid filling port is provided on the liquid storage tank 7, and the hose 29 is a PE transparent hose. First, artificial simulated plasma is transported to the liquid pump 8 and the simulated artery 4 through the liquid storage tank 7. After one cycle, the passages of the two three-way valves 21 are controlled to switch, the passage with the liquid storage tank 7 is closed, and the passage with the PE transparent hose is opened, so that the artificial simulated plasma in the simulated vein 5 is directly supplied to the liquid pump 8 through the hose 29 instead of entering the liquid storage tank 7, so as to control the volume of artificial simulated plasma transported by the liquid pump 8.

[0022] The simulated artery 4 is provided with a secondary simulated artery 27, one end of which is connected to the main flowmeter 10, and the other end is connected to the simulated capillary 6, and a diseased blood vessel segment 13 is provided on the secondary simulated artery 27 through a connector 16; the simulated vein 5 is provided with a secondary simulated vein 28, one end of which is connected to the simulated capillary 6, and the other end is connected to the three-way valve 21 at the liquid inlet end of the liquid storage tank 7, and a diseased blood vessel segment 13 is provided on the secondary simulated vein 28 through a connector 16.

[0023] Furthermore, the liquid outlet ends of the secondary simulated arteries 27 and secondary simulated veins 28 are provided with secondary pressure gauges 17 and secondary flow meters 18 to detect the transportation conditions of the artificial simulated plasma in the secondary simulated arteries 27 and secondary simulated veins 28 in real time, and the secondary simulated arteries 27 and secondary simulated veins 28 are made of PE transparent hoses, so that trainees can see the real-time flow conditions of the artificial simulated plasma through the PE transparent hoses.

[0024] Furthermore, the liquid outlet ends of the simulated arteries 4 and the auxiliary simulated arteries 27 are provided with a one-way valve 19, and the liquid inlet ends are provided with a stop valve 20. The liquid inlet ends of the simulated veins 5 and the auxiliary simulated veins 28 are provided with a one-way valve 19 and a stop valve 20. The one-way valve 19 prevents backflow, and the stop valve 20 controls the delivery volume and whether to deliver.

[0025] The diameters of the simulated artery 4, simulated vein 5, simulated capillary 6, diseased vascular segment 13, auxiliary simulated artery 27, and auxiliary simulated vein 28 are 3 to 6 times the diameters of healthy blood vessels of an adult, so that the condition of the simulated diseased symptom tissue 15 in the diseased vascular segment 13 and the condition of artificially simulated plasma when being transported in the diseased vascular segment 13 can be more intuitively observed with the naked eye.

[0026] Furthermore, in order to ensure the stability of the connection and avoid damage caused by shaking or gravity pulling during use, the simulated artery 4, simulated vein 5, simulated capillary 6, auxiliary simulated artery 27, and auxiliary simulated vein 28 are provided with pipe clamps or clamps to connect the frame-shaped stand 1, which not only achieves position limitation but also facilitates installation and disassembly.

[0027] It also includes an external detector 22, which includes an L-shaped support 23, an adjusting rod 24, and a detector 26. A screw hole is set on the upper part of the side wall of the L-shaped support 23, and the adjusting rod 24 is set in the screw hole. A nut is set on the adjusting rod 24 outside the screw hole, and a limiting plate 25 is set on the adjusting rod 24 inside the screw hole, that is, on the side of the L-shaped support 23 opposite to the side wall. The upper part of the limiting plate 25 is connected to the adjusting rod 24, and the detector 26 is set on the limiting plate 25 and penetrates the limiting plate 25. After the diseased blood vessel segment 13 is installed, the external detector 22 is installed on the diseased blood vessel segment 13. The detector 26 is a pressure sensor. The adjusting rod 24 is operated to adjust the width between the L-shaped support 23 and the limiting plate 25, so that the working end of the external detector 22 can contact the outer wall of the diseased blood vessel segment 13, ensuring that the external pressure of the diseased blood vessel segment 13 can be detected.

[0028] It also includes a controller, which is a single chip microcomputer with a display screen. The controller is electrically connected to the liquid pump 8 and the detector 26 to control the working states of the two and display the detection data of the detector 26 for easy viewing.

[0029] Furthermore, the stop valve 20 and the three-way valve 21 are solenoid valves, which are electrically connected to a controller, and the controller controls the switching of the paths of the stop valve 20 and the three-way valve 21, thereby improving the convenience of use.

[0030] The working method of the utility model is as follows: firstly, artificial simulated plasma is added into the liquid storage tank 7, and then, according to the teaching requirements, the diseased blood vessel segment 13 with corresponding symptoms is selected and installed on the simulated artery 4, simulated vein 5, auxiliary simulated artery 27 and / or auxiliary simulated vein 28. After the installation is completed, the liquid pump 8 is started to extract the artificial simulated plasma in the liquid storage tank 7 and transport it to the simulated artery 4 and auxiliary simulated vein 28, and then transport it to the simulated vein 5 and auxiliary simulated vein 28 through the simulated capillaries 6, and finally supplied to the liquid pump 8. After completing one cycle of circulation, the passage of the two or three-way valves 21 is controlled to be switched, the passage with the liquid storage tank 7 is closed, and the passage with the PE transparent hose is opened, so that the artificial simulated plasma in the simulated vein 5 is directly supplied to the liquid pump 8 through the hose 29 to continue circulating and transporting, and no longer enters the liquid storage tank 7, so as to simulate and create a blood circulation system.

[0031] During the above-mentioned transportation process, trainees can visually observe with their naked eyes the conditions of the artificial simulated plasma when it passes through the normal simulated artery 4, simulated vein 5, auxiliary simulated artery 27 and / or auxiliary simulated vein 28, and can also check the pressure and flow generated by the front and terminal artificial simulated plasma when the artificial simulated plasma passes through different diseased blood vessel segments 13 through the main pressure gauge 9, main flow meter 10, terminal pressure gauge 11, terminal flow, auxiliary pressure gauge 17, and auxiliary flow meter 18, and further understand the symptom reaction between blood and blood vessels under different vascular disease symptoms, and the different sizes of the forces acting on the blood vessels by the blood. Combined with the detection images of the ultrasonic equipment, it is more convenient for trainees to understand, obtain relatively real perception of disease information, and improve teaching effect.

[0032] When the diseased blood vessel segment 13 needs to be replaced, the diseased blood vessel segment 13 that needs to simulate the diseased symptom tissue 15 can be selected and installed on the corresponding blood vessel; during the teaching demonstration, the diseased blood vessel segment 13 can be installed only on the simulated artery 4, simulated vein 5, auxiliary simulated artery 27 or auxiliary simulated vein 28, or the diseased blood vessel segment 13 can be installed on two or more blood vessels. When performing Doppler ultrasound detection, the probe is directly pointed at the diseased blood vessel segment 13 for detection, and then the normal simulated artery 4, simulated vein 5, auxiliary simulated artery 27 and / or auxiliary simulated vein 28 are detected, and finally the obtained images are compared and used for teaching.

Claims

1. A medical simulation teaching aid for vascular diseases, comprising a frame-shaped stand (1), and a simulated artery (4), a simulated vein (5), a simulated capillary (6), a liquid storage tank (7), and a liquid pump (8) arranged on the frame-shaped stand (1), wherein artificial simulated plasma is arranged in the liquid storage tank (7), and characterized in that: A liquid storage tank (7) and a liquid pump (8) are arranged in the middle and upper part of the frame-shaped stand (1) via a support. The liquid outlet of the liquid pump (8) is connected to a main pressure gauge (9), a main flow meter (10), and a simulated capillary (6) in sequence via a simulated artery (4). The liquid inlet of the liquid pump (8) is connected to a liquid storage tank (7), a terminal pressure gauge (11), a terminal flow meter (12), and a simulated capillary (6) in sequence via a simulated vein (5). A diseased blood vessel segment (13) is detachably arranged on the simulated artery (4) and the simulated vein (5). The diseased blood vessel segment (13) comprises a tube body (14) and simulated diseased symptom tissue (15). The simulated diseased symptom tissue (15) is an integrally formed structure arranged inside the tube body (14). Joints (16) are arranged at both ends of the tube body (14).

2. The medical simulation teaching aid for vascular diseases according to claim 1, characterized in that: The simulated lesion symptom tissue (15) includes simulated tissue of vascular stenosis, blockage, dilation, tumor or dissection lesion symptoms, the simulated tissue is made of transparent material through 3D printing technology, and one simulated lesion symptom tissue (15) is arranged on a lesion blood vessel segment (13), or any two or more simulated lesion symptom tissues (15) are arranged on the same lesion blood vessel segment (13).

3. The medical simulation teaching aid for vascular diseases according to claim 1, characterized in that: The liquid pump (8) is a peristaltic liquid pump (8), and the liquid storage tank (7) is made of transparent plastic.

4. The medical simulation teaching aid for vascular diseases according to claim 1, characterized in that: The simulated artery (4), simulated vein (5), and simulated capillary (6) are made of PE transparent hose, and at least four connectors (16) adapted to the diseased blood vessel segment (13) are respectively arranged on the simulated artery (4) and simulated vein (5), and the connectors (16) are connectors (16) made of plastic material.

5. The medical simulation teaching aid for vascular diseases according to claim 1, characterized in that: A three-way valve (21) is provided at the liquid outlet of the liquid storage tank (7) to connect to the simulated artery (4), and a three-way valve (21) is provided at the liquid inlet to connect to the simulated vein (5), and the two three-way valves (21) are connected via a hose (29), and a liquid filling port is provided on the liquid storage tank (7).

6. The medical simulation teaching aid for vascular disease according to claim 1, characterized in that: The simulated artery (4) is provided with a secondary simulated artery (27), one end of the secondary simulated artery (27) is connected to the main flow meter (10), and the other end is connected to the simulated capillary (6), and a diseased blood vessel segment (13) is provided on the secondary simulated artery (27) via a joint (16); the simulated vein (5) is provided with a secondary simulated vein (28), one end of the secondary simulated vein (28) is connected to the simulated capillary (6), and the other end is connected to the three-way valve (21) at the liquid inlet end of the liquid storage tank (7), and a diseased blood vessel segment (13) is provided on the secondary simulated vein (28) via a joint (16).

7. The medical simulation teaching aid for vascular disease according to claim 6, characterized in that: The diameters of the simulated arteries (4), simulated veins (5), simulated capillaries (6), diseased blood vessel segments (13), auxiliary simulated arteries (27), and auxiliary simulated veins (28) are 3 to 6 times the diameters of healthy blood vessels of an adult.

8. The medical simulation teaching aid for vascular diseases according to claim 1, characterized in that: The device further comprises an external detector (22), wherein the external detector (22) comprises an L-shaped support (23), an adjusting rod (24), and a detector (26); a screw hole is arranged on the upper part of the side wall of the L-shaped support (23); the adjusting rod (24) is arranged in the screw hole; a nut is arranged on the adjusting rod (24) outside the screw hole; a limit plate (25) is arranged on the adjusting rod (24) inside the screw hole, that is, on the side of the L-shaped support (23) opposite to the side wall; the upper part of the limit plate (25) is connected to the adjusting rod (24); and the detector (26) is arranged on the limit plate (25) and passes through the limit plate (25).

9. The medical simulation teaching aid for vascular disease according to claim 1, characterized in that: It also includes a controller, which is a single-chip microcomputer with a display screen, and the controller is electrically connected to the liquid pump (8) and the detector (26).

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