CN214098890U - Blood circulation model for teaching - Google Patents
Blood circulation model for teaching Download PDFInfo
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- CN214098890U CN214098890U CN202120376642.7U CN202120376642U CN214098890U CN 214098890 U CN214098890 U CN 214098890U CN 202120376642 U CN202120376642 U CN 202120376642U CN 214098890 U CN214098890 U CN 214098890U
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- 230000017531 blood circulation Effects 0.000 title claims abstract description 48
- 210000004072 lung Anatomy 0.000 claims abstract description 9
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 6
- 210000003462 vein Anatomy 0.000 claims description 40
- 230000002685 pulmonary effect Effects 0.000 claims description 37
- 210000001367 artery Anatomy 0.000 claims description 35
- 230000002572 peristaltic effect Effects 0.000 claims description 30
- 210000003492 pulmonary vein Anatomy 0.000 claims description 14
- 210000000709 aorta Anatomy 0.000 claims description 13
- 210000001147 pulmonary artery Anatomy 0.000 claims description 13
- 210000003437 trachea Anatomy 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 210000005246 left atrium Anatomy 0.000 claims description 6
- 210000005240 left ventricle Anatomy 0.000 claims description 6
- 210000005245 right atrium Anatomy 0.000 claims description 6
- 210000005241 right ventricle Anatomy 0.000 claims description 6
- 210000002837 heart atrium Anatomy 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000008280 blood Substances 0.000 abstract description 13
- 210000004369 blood Anatomy 0.000 abstract description 13
- 238000009423 ventilation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010146 3D printing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000004087 circulation Effects 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 210000002159 anterior chamber Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000004088 pulmonary circulation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The invention discloses a blood circulation model for teaching, which comprises a display box, a splint and a heart model; the clamping plate divides the display box into a front cavity and a rear cavity. The pressure trigger is adopted, the experience is strong, the pressure trigger is suitable for all people who want to know about the blood circulation system of the human body, and the pressure trigger has multiple trigger modes, is adjustable and is flexible to operate; the blood circulation model can simulate the dynamic flow of blood, is vivid and vividly shows the body circulation, the lung ventilation and the tissue ventilation, and solves the difficult problem of the conversion of the arterial blood and the venous blood which is difficult to solve in other models in the past; the heart model and the alveolar sac model utilize a 3D printing technology, have strong simulation and moderate hardness, and are beneficial to the installation of the pressure sensor; all blood vessels of the blood circulation model are of detachable structures, so that medical students and medical enthusiasts can study and study the blood vessels, the blood circulation model is also suitable for popular science teaching of primary and middle school students, teaching is realized through lively activities, and understanding of knowledge is improved while practical ability is enhanced.
Description
Technical Field
The invention relates to the technical field of blood circulation, in particular to a blood circulation model for teaching.
Background
In the medical field, including course teaching of various specialties such as clinic and nursing, the normal blood circulation process needs to be known, and arterial blood and venous blood can be distinguished; in the process of medical teaching and science popularization, participants need to have certain knowledge about the blood circulation mode, and related knowledge is popularized. However, in the actual teaching process, the blood circulation is a key point of physiology and a difficulty. At present, when each school gives lessons, the lessons are still explained according to illustrations and descriptions in textbooks, so that the part of knowledge is unsmooth and abstract, and students are difficult to understand. The specialized blood circulation models that exist on the market are roughly divided into two categories: one is a static PVC model which can display the structure of the blood circulation system from the form, but can not dynamically demonstrate the blood circulation direction; the other is a plane structure model combining pictures and a luminous tube, which can demonstrate the blood circulation direction, but is not three-dimensional and is difficult to visually show the processes of tissue ventilation and lung ventilation. Both models lack good experience and participation and cannot completely accord with the cognitive rule of theoretical knowledge obtained from practice.
Disclosure of Invention
1. Technical problem to be solved
The technical problem to be solved by the invention is to provide a blood circulation model for teaching, solve the problems of acerbity and abstraction in the working process of the existing blood circulation teaching, and solve the problem that the existing blood circulation model cannot clearly show the systemic circulation and the pulmonary circulation.
2. Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a blood circulation model for teaching comprises a display box, a splint and a heart model; the display box is divided into a front cavity and a rear cavity by the clamping plate; the heart model is fixed in the front cavity and is divided into a left atrium, a right atrium, a left ventricle and a right ventricle from the appearance; each atrium and ventricle is provided with a small hole which is penetrated with a soft tube representing a blood vessel; the right atrium penetrates into the vena cava, the pulmonary artery penetrates out of the right ventricle, the pulmonary vein penetrates into the left atrium, and the aorta penetrates out of the left ventricle; one ends of the pulmonary artery and the pulmonary vein, which are far away from the heart model, are respectively communicated with a pulmonary capillary artery end and a pulmonary capillary vein end, one ends of the aorta and the vena cava, which are far away from the heart model, are respectively communicated with a tissue capillary artery end and a tissue capillary vein end, and the pulmonary capillary artery end, the pulmonary capillary vein end, the tissue capillary artery end and the tissue capillary vein end all penetrate through the clamping plate and are connected with the back cavity through corresponding pipelines; the tissue capillary artery end is communicated with the pulmonary capillary vein end through a first peristaltic pump, and the tissue capillary vein end is communicated with the pulmonary capillary artery end through a second peristaltic pump; blue ink is filled in the pulmonary artery, the pulmonary capillary artery end, the tissue capillary vein end, the cavity vein and the second peristaltic pump tube; the pulmonary vein, the pulmonary capillary vein end, the tissue capillary artery end, the aorta and the first peristaltic pump tube are filled with red ink.
Above-mentioned blood circulation model is used in teaching, wherein, pulmonary artery, pulmonary vein, aorta and vena cava adopt the transparent silica gel hose of internal diameter 3mm, external diameter 5 mm.
The blood circulation model for teaching is characterized in that the pulmonary capillary artery end, the pulmonary capillary vein end, the tissue capillary artery end and the tissue capillary vein end are respectively composed of a plurality of transparent silica gel hoses with the inner diameter of 1.6mm and the outer diameter of 3.2mm, Y-shaped tubes and straight-through connectors.
The blood circulation model for teaching is characterized by further comprising a first pressure sensor; the first pressure sensor is arranged in the heart model and is connected with the input end of the pressure switch controller; and the output end of the pressure switch controller is connected with the first peristaltic pump and the second peristaltic pump.
The blood circulation model for teaching also comprises a trachea model; the trachea model is made of a silicone tube and a Y-shaped PP tube, and the tail end of the trachea model is provided with a 3D printed alveolar sac model; and a second pressure sensor is arranged in the alveolar sac model and is connected with the input end of the pressure switch controller.
The blood circulation model for teaching is characterized in that the first pressure sensor and the second pressure sensor are resistance-type film pressure sensors, and the measuring range is 5-200 g.
The blood circulation model for teaching is characterized in that the pressure switch controller is powered by 220V mains supply through a 5V power adapter; the first peristaltic pump and the second peristaltic pump are powered by 220V mains supply through a 12V power adapter.
In the blood circulation model for teaching, a right lung picture is drawn on the front surface of the splint and is positioned on the right side of the heart model; the alveolar sac model is located on the left side of the heart model.
3. Advantageous effects
In conclusion, the beneficial effects of the invention are as follows:
(1) the blood circulation model disclosed by the invention is triggered by pressure, has strong experience feeling, is suitable for all people who want to know about the blood circulation system of a human body, and has multiple trigger modes, is adjustable and is flexible to operate;
(2) the blood circulation model can simulate the dynamic flow of blood, is vivid and vividly shows the body circulation, the lung ventilation and the tissue ventilation, and solves the difficult problem of the conversion of the arterial blood and the venous blood which is difficult to solve in other models in the past;
(3) in the blood circulation model, the heart model and the alveolar sac model utilize a 3D printing technology, have strong simulation and moderate hardness, and are beneficial to the installation of the pressure sensor;
(4) all blood vessels and air pipes of the blood circulation model are of detachable structures, so that medical students and medical enthusiasts can learn through lively activities, the practical ability is enhanced, and the knowledge understanding is improved.
Drawings
FIG. 1 is a schematic front view of a blood circulation model for teaching according to the present invention;
FIG. 2 is a schematic view of the back side of the blood circulation model for teaching of the present invention;
FIG. 3 is a schematic diagram of the control principle of the blood circulation model for teaching of the present invention;
in the figure: 1-a display box; 2-clamping plate; 3-heart model; 4-vena cava; 5-pulmonary artery; 6-pulmonary vein; 7-aorta; 8-pulmonary capillary arterial end; 9-pulmonary capillary vein end; 10-tissue capillary arterial end; 11-tissue capillary vein end; 12-a first peristaltic pump; 13-a second peristaltic pump; 14-a first pressure sensor; 15-pressure switch controller; 16-trachea model; 17-alveolar sac model; 18-a second pressure sensor; 19-right lung picture; 100-a front cavity; 200-posterior chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to fig. 3, the present invention provides a technical solution: a blood circulation model for teaching comprises a display box 1, a splint 2 and a heart model 3; the splint 2 divides the display case 1 into a front cavity 100 and a rear cavity 200; the heart model 3 is fixed in the anterior chamber 100 and is divided into a left atrium, a right atrium, a left ventricle and a right ventricle from the appearance; each atrium and ventricle is provided with a small hole which is penetrated with a soft tube representing a blood vessel; the right atrium is penetrated by a vena cava 4, the right ventricle is penetrated by a pulmonary artery 5, the left atrium is penetrated by a pulmonary vein 6, and the left ventricle is penetrated by an aorta 7; one ends of the pulmonary artery 5 and the pulmonary vein 6, which are far away from the heart model 3, are respectively communicated with a pulmonary capillary artery end 8 and a pulmonary capillary vein end 9, one ends of the aorta 7 and the vena cava 4, which are far away from the heart model 3, are respectively communicated with a tissue capillary artery end 10 and a tissue capillary vein end 11, and the pulmonary capillary artery end 8, the pulmonary capillary vein end 9, the tissue capillary artery end 10 and the tissue capillary vein end 11 all penetrate through the splint 2 and are connected with the rear cavity 200 through corresponding pipelines; the tissue capillary artery end 10 is communicated with the pulmonary capillary vein end 9 through a first peristaltic pump 12, and the tissue capillary vein end 11 is communicated with the pulmonary capillary artery end 8 through a second peristaltic pump 13; blue ink is filled in pump tubes of the pulmonary artery 5, the pulmonary capillary artery end 8, the tissue capillary vein end 11, the vena cava 4 and the second peristaltic pump 13; and the pulmonary vein 6, the pulmonary capillary vein end 9, the tissue capillary artery end 10, the aorta 7 and the pump tube of the first peristaltic pump 12 are filled with red ink. It should be noted that, in order to solve the visual effect problem of pulmonary ventilation and tissue ventilation, the pulmonary capillary artery end 8 and the pulmonary capillary vein end 9 are not directly connected, but pass through the splint 2 to the rear cavity 200, and then pass through the splint 2 to the front cavity 100 through the corresponding pipe and the second peristaltic pump 13 to be connected with the tissue capillary vein end 11; the tissue capillary artery end 10 and the tissue capillary vein end 11 are not directly connected, but pass through the splint 2 to the posterior chamber 200, and are connected to the pulmonary capillary vein end 9 through the corresponding tubing and first peristaltic pump 12, and then pass through the splint 2 to the anterior chamber 100. Therefore, in fact, the red ink and the blue ink are distributed in two independent closed one-way circulating pipelines, but in the front of the whole splint 2, the model visually creates the effect of only one single closed circulating system, so that the simulation effect is visual, dynamic and vivid, an experiencer can establish visual cognition on blood circulation, and the problems that other acousto-optic models are not vivid and the lung ventilation and the tissue ventilation are difficult to visually display are solved.
Preferably, the pulmonary artery 5, the pulmonary vein 6, the aorta 7 and the vena cava 4 adopt transparent silica gel hoses with the inner diameter of 3mm and the outer diameter of 5 mm; the pulmonary capillary artery end 8, the pulmonary capillary vein end 9, the tissue capillary artery end 10 and the tissue capillary vein end 11 are respectively composed of a plurality of transparent silica gel hoses with the inner diameter of 1.6mm and the outer diameter of 3.2mm, Y-shaped pipes and through connectors, wherein the through connectors comprise 1/16 through connectors and 1/8-to-1/16 through connectors, and the Y-shaped pipes comprise 10 mm-to-8 mmY pipes, 8 mm-to-6 mmY pipes and 1/16Y-shaped pipes.
In order to enhance the experience of the operator and make the operator know that the heart is the power device for blood circulation, a first pressure sensor 14 is added; the first pressure sensor 14 is installed in the heart model 3 and is connected with the input end of the pressure switch controller 15. Also includes a trachea model 16; the trachea model 16 is formed by connecting a Y-shaped PP (polypropylene) tube and a silicone tube, and the tail end of the trachea model is provided with a 3D printed alveolar sac model 17; the lung vesicle model 17 is internally provided with a second pressure sensor 18 which is connected with the input end of the pressure switch controller 15. Preferably, the first pressure sensor 14 and the second pressure sensor 18 are resistive film pressure sensors with a span of 5-200 g. The trigger control switches of the two pressure sensors have 3 modes: (1) pressure sensing mode (pressure on, no pressure off); (2) trigger switch mode (pressure 1 on, pressure 1 off again); (3) the time delay switch mode (there is pressure 1 time to open, 60s automatic closing after pressure release), can set up the trigger mode of two pressure sensors through the said pressure switch controller 15. By pressing the first pressure sensor 14 or the second pressure sensor 18, both the first peristaltic pump 12 and the second peristaltic pump 13 can be started, thus starting the blood circulation.
Preferably, the pressure switch controller 15 is powered by 220V mains supply through a 5V power adapter; the first peristaltic pump 12 and the second peristaltic pump 13 are powered by 220V mains supply through a 12V power adapter.
A right lung picture 19 is drawn on the front surface of the splint 2 and is positioned on the right side of the heart model 3; the alveolar sac model 17 is located on the left side of the heart model 3. The heart model 3 and the alveolar sac model 17 are both formed by 3D printing of silica gel materials, and the hardness of the silica gel is 35.
The using method comprises the following steps: by pressing the first pressure sensor 14 or the second pressure sensor 18, the first peristaltic pump 12 and the second peristaltic pump 13 are turned on, so that blue ink circulates in the pulmonary artery 5, the pulmonary capillary artery end 8, the tissue capillary vein end 11, the vena cava 4, and the second peristaltic pump 13; meanwhile, the red ink circulates in the pulmonary vein 6, the pulmonary capillary vein end 9, the tissue capillary artery end 10, the aorta 7 and the first peristaltic pump 12, blood circulates and flows in the pulmonary vein, the processes of body circulation, pulmonary ventilation (venous blood changing into venous blood) and tissue ventilation (arterial blood changing into venous blood) are simulated by the flowing of the ink with different colors, and the effect that only one single closed blood circulation system is visually created on the front side of the whole display case 1 is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a blood circulation model is used in teaching which characterized in that: comprises a display box (1), a splint (2) and a heart model (3); the display box (1) is divided into a front cavity (100) and a rear cavity (200) by the clamping plate (2); the heart model (3) is fixed in an anterior cavity (100) and is divided into a left atrium, a right atrium, a left ventricle and a right ventricle from the appearance; each atrium and ventricle is provided with a small hole which is penetrated with a soft tube representing a blood vessel; the right atrium penetrates into the heart to form a vena cava (4), the right ventricle penetrates out of the heart to form a pulmonary artery (5), the left atrium penetrates into the heart to form a pulmonary vein (6), and the left ventricle penetrates out of the heart to form an aorta (7); one ends of the pulmonary artery (5) and the pulmonary vein (6) far away from the heart model (3) are respectively communicated with a pulmonary capillary artery end (8) and a pulmonary capillary vein end (9), one ends of the aorta (7) and the vena cava (4) far away from the heart model (3) are respectively communicated with a tissue capillary artery end (10) and a tissue capillary vein end (11), the pulmonary capillary artery end (8), the pulmonary capillary vein end (9), the tissue capillary artery end (10) and the tissue capillary vein end (11) all penetrate through the splint (2), and the posterior cavity (200) is connected through corresponding pipelines; the tissue capillary artery end (10) is communicated with the pulmonary capillary vein end (9) through a first peristaltic pump (12), and the tissue capillary vein end (11) is communicated with the pulmonary capillary artery end (8) through a second peristaltic pump (13); blue ink is filled in pump tubes of the pulmonary artery (5), the pulmonary capillary artery end (8), the tissue capillary vein end (11), the vena cava (4) and the second peristaltic pump (13); and the pump tubes of the pulmonary vein (6), the pulmonary capillary vein end (9), the tissue capillary artery end (10), the aorta (7) and the first peristaltic pump (12) are filled with red ink.
2. A model of educational blood circulation as set forth in claim 1, wherein: the pulmonary artery (5), the pulmonary vein (6), the aorta (7) and the vena cava (4) adopt transparent silica gel hoses with the inner diameter of 3mm and the outer diameter of 5 mm.
3. A model of educational blood circulation as set forth in claim 2, wherein: the pulmonary capillary artery end (8), the pulmonary capillary vein end (9), the tissue capillary artery end (10) and the tissue capillary vein end (11) are respectively composed of a plurality of transparent silica gel hoses with the inner diameter of 1.6mm and the outer diameter of 3.2mm, Y-shaped tubes and straight-through connectors.
4. A model of educational blood circulation as set forth in claim 1, wherein: further comprising a first pressure sensor (14); the first pressure sensor (14) is arranged in the heart model (3) and is connected with the input end of the pressure switch controller (15).
5. A teaching blood circulation model according to claim 4, wherein: also includes a trachea model (16); the trachea model (16) is made of a silicone tube, and the tail end of the trachea model is provided with a 3D printed alveolar sac model (17); and a second pressure sensor (18) is arranged in the alveolar sac model (17) and is connected with the input end of the pressure switch controller (15).
6. A teaching blood circulation model according to claim 5, wherein: the first pressure sensor (14) and the second pressure sensor (18) are resistance-type film pressure sensors, and the measuring range is 5-200 g.
7. A teaching blood circulation model according to claim 4, wherein: the pressure switch controller (15) is powered by 220V mains supply through a 5V power adapter; the first peristaltic pump (12) and the second peristaltic pump (13) are powered by 220V mains supply through a 12V power adapter.
8. A teaching blood circulation model according to claim 5, wherein: a right lung picture (19) is drawn on the front surface of the splint (2) and is positioned on the right side of the heart model (3); the alveolar sac model (17) is located on the left side of the heart model (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376642.7U CN214098890U (en) | 2021-02-19 | 2021-02-19 | Blood circulation model for teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120376642.7U CN214098890U (en) | 2021-02-19 | 2021-02-19 | Blood circulation model for teaching |
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| CN214098890U true CN214098890U (en) | 2021-08-31 |
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| CN202120376642.7U Expired - Fee Related CN214098890U (en) | 2021-02-19 | 2021-02-19 | Blood circulation model for teaching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951059A (en) * | 2021-02-19 | 2021-06-11 | 肖艾琳 | Blood circulation model for teaching |
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2021
- 2021-02-19 CN CN202120376642.7U patent/CN214098890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951059A (en) * | 2021-02-19 | 2021-06-11 | 肖艾琳 | Blood circulation model for teaching |
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Granted publication date: 20210831 |