CN108122466B - Teaching device for simulating human arterial vessel ligation - Google Patents
Teaching device for simulating human arterial vessel ligation Download PDFInfo
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- CN108122466B CN108122466B CN201711425146.0A CN201711425146A CN108122466B CN 108122466 B CN108122466 B CN 108122466B CN 201711425146 A CN201711425146 A CN 201711425146A CN 108122466 B CN108122466 B CN 108122466B
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- 239000008280 blood Substances 0.000 claims abstract description 118
- 210000004369 blood Anatomy 0.000 claims abstract description 118
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000017531 blood circulation Effects 0.000 claims description 7
- 238000004088 simulation Methods 0.000 abstract description 22
- 230000000740 bleeding effect Effects 0.000 abstract description 8
- 230000036772 blood pressure Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 239000002473 artificial blood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
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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
- G09B23/285—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas
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- Medical Informatics (AREA)
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Abstract
The invention discloses a teaching device for simulating human arterial vessel ligation, which belongs to the technical field of medical simulation teaching devices and comprises a test bed, a simulated vessel, a simulated blood storage tank and a pressurizing device; be provided with the cofferdam on the test bench, be provided with a plurality of simulated blood vessel in the cofferdam, simulated blood vessel and simulated blood tank are connected, and pressure device and simulated blood tank are connected, provide stable simulated human pressure for the simulated blood tank through pressure device, have solved the gravity and have been followed blood bag altitude variation along with blood pressure and blood velocity that gravity flow pattern device exists and change among the prior art, along with the increase of bleeding volume, the problem that bleeding pressure and velocity of flow all can change makes the simulation test teaching more be close to reality, has improved the effect of simulation teaching.
Description
Technical Field
The invention relates to the technical field of medical simulation teaching devices, in particular to a device for simulating human arterial vessel ligation.
Background
Clinical practice is an important link for culturing qualified medical students and is an important component of clinical teaching. With the progress of society, the gradual perfection of legal treatment construction and the enhancement of patient's self-protection consciousness, traditional medical education system and clinical practice teaching face more and more difficulties and challenges, and the traditional clinical practice teaching mode directly targeting patients faces serious experiments, and the traditional practice teaching mode can not meet the requirements of modern medical education on medical students for clinical skill culture. The simulated medicine is a new mode of clinical skill teaching, and the simulated medicine is applied to practice teaching, thereby being beneficial to the practice students to master practice skills, and having important significance for improving practice teaching quality, reducing legal disputes in clinical teaching and competing for teaching reform.
Surgical skills are required to be exercised prior to entering the clinic. Hemostasis and knotting are one of the most common and basic operating skills in surgery, and correct ligation depends on the skill level of operators in grasping the knotting method. The quality and speed of knotting not only affects the length of the operation time, but also affects the quality of the operation and the prognosis of the patient's life. Therefore, every medical staff who learns and engages in surgery must master this important basic operating technique, and academy usually adopts a skill training model to perform preoperative ligature and hemostatic training before officially going on duty or participating in skill competition. While deep hemostatic ligature skills are basic operational techniques requiring exercise of a trainee, more rapid response ability, and logic thinking ability.
At present, most of existing deep hemostasis ligation models are provided with a plurality of bleeding blood vessels so as to simulate real blood flow states, and the model is used for skill training, skill competition and the like, and the number of the ligature blood vessels and the residual blood quantity (artificial blood) in a blood bag are required to be recorded within a specified time, so that corresponding results are obtained through conversion. However, the devices in the prior art are gravity self-flowing type, the blood pressure and the blood flow speed change along with the change of the height of the blood bag, and the pressure and the flow speed of bleeding change along with the increase of the bleeding amount, which is insufficient to simulate the real blood pressure and the bleeding scene of a human body, and have no scientificity and rigor. The artificial blood flowing out each time is mostly lost, not only causes pollution to the environment, but also does not meet the requirements of quantification and refinement.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for simulating human arterial vessel ligation, which can accurately simulate human blood pressure environment and improve the teaching effect of simulation teaching.
The invention is realized by the following technical scheme:
the teaching device for simulating human arterial vessel ligation comprises a test bed, a simulated blood vessel, a simulated blood storage tank and a pressurizing device;
the test bench is provided with a cofferdam, a plurality of simulated blood vessels are arranged in the cofferdam, the simulated blood vessels are connected with a simulated blood storage tank, the pressure device is connected with the simulated blood storage tank, and the pressure device is used for providing stable pressure of a simulated human body for the simulated blood storage tank.
Optionally, be provided with the operation panel in the test bench cofferdam, the operation panel below is provided with holds the blood chamber, is provided with a plurality of via hole on the operation panel, is provided with the hole stopper on the via hole, holds the blood chamber and is connected with the simulation blood recovery case, holds and is provided with first valve between blood chamber and the simulation blood recovery case, and the simulation blood recovery case is connected with the simulation blood tank, is provided with the second valve between simulation blood recovery case and the simulation blood tank.
Optionally, the bottom of the blood containing cavity is of a V-shaped structure, and a filter screen is arranged between the blood containing cavity and the simulated blood recovery box.
Optionally, the device further comprises a controller;
an electromagnetic valve is arranged between the simulated blood storage tank and the simulated blood vessel, and the controller is connected with the electromagnetic valve and controls the simulated blood storage tank to supply blood to the simulated blood vessel.
Optionally, the device further comprises a touch screen, and the touch screen is connected with the controller.
Optionally, a liquid level meter is arranged in the simulated blood storage tank, the liquid level meter is connected with a controller, and the controller is connected with an alarm.
Optionally, be provided with first manometer, air-vent valve and second manometer between pressure device and the blood storage tank, first manometer is used for detecting the pressure of pressure device output, and the air-vent valve is used for adjusting the pressure of pressure device output, and the second manometer is used for detecting the pressure of input simulation blood storage tank.
Optionally, a third pressure gauge and a flow meter are arranged between the simulated blood storage tank and the simulated blood vessel, the third pressure gauge is used for detecting the pressure of the outlet of the simulated blood storage tank, and the flow meter is used for detecting the simulated blood flow.
Optionally, an exhaust valve is arranged on the simulated blood storage tank.
Optionally, the bottom of the test stand is provided with casters.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a teaching device for simulating human arterial vessel ligation, which comprises a test bed, a simulated vessel, a simulated blood storage tank and a pressurizing device, wherein the test bed is used for simulating the arterial vessel ligation of a human body; be provided with the cofferdam on the test bench, be provided with a plurality of simulated blood vessel in the cofferdam, simulated blood vessel and simulated blood tank are connected, and pressure device and simulated blood tank are connected, provide stable simulated human pressure for the simulated blood tank through pressure device, have solved the gravity and have been followed blood bag altitude variation along with blood pressure and blood velocity that gravity flow pattern device exists and change among the prior art, along with the increase of bleeding volume, the problem that bleeding pressure and velocity of flow all can change makes the simulation test teaching more be close to reality, has improved the effect of simulation teaching.
Further, through set up via hole and hole stopper on the operation panel, not only guaranteed the simulation blood when simulation teaching on the test bench, be close to real environment, guaranteed again that simulation blood flows back to the simulation blood collection box when simulation teaching is finished, both practiced thrift the cost of simulation teaching to the environmental protection is pollution-free.
Further, the electromagnetic valve is controlled by the controller, and the opening time of the electromagnetic valve is set so as to automatically control the operation time of the simulation teaching or examination, thereby avoiding time errors or mistakes caused by human reasons in the simulation teaching or examination.
Further, the liquid level of the simulated blood storage tank is detected through the liquid level meter, and the controller controls the alarm to alarm when the liquid level is too low, so that the simulated blood is prevented from being exhausted, and the simulated teaching or examination is prevented from being influenced.
Drawings
Fig. 1 is a schematic structural diagram of a teaching device for simulating arterial vessel ligation of a human body according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a teaching device for simulating human arterial vessel ligation according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a simulated blood circuit of a teaching device for simulating arterial vessel ligation of a human body according to an embodiment of the present invention;
fig. 4 is a control block diagram of a teaching device for simulating arterial vessel ligation of a human body according to an embodiment of the present invention.
In the figure: 1. test stand, 2, simulated blood vessel, 3, simulated blood storage tank, 4, simulated blood recovery tank, 5, electric control cabinet, 6, second valve, 7, first valve, 8, pressurizing device, 9, first pressure gauge, 10, pressure regulating valve, 11, second pressure gauge, 12, third pressure gauge, 13, electromagnetic valve, 14, flow valve, 101, operation desk, 102, blood containing cavity.
Detailed Description
The invention will now be described in further detail with reference to specific examples, which are intended to illustrate, but not to limit, the invention.
As shown in fig. 1 and 2, a teaching device for simulating arterial vessel ligation of a human body comprises a test bed 1, a simulated blood vessel 2, a simulated blood storage tank 3, a pressurizing device 8 and a simulated blood recovery tank 4;
be provided with the cofferdam on the test bench 1, be provided with a plurality of simulated blood vessel 2 in this cofferdam, simulated blood vessel 2 is connected with simulated blood tank 3, and pressure device 8 is used for providing stable simulated human pressure for simulated blood tank 3.
Be provided with operation panel 101 in the test bench 1 cofferdam, operation panel 101 below is provided with holds blood chamber 102, be provided with a plurality of via hole on the operation panel 101, be provided with the hole stopper on the via hole, hold blood chamber 102 and operation panel 101 and pass through the via hole and connect, the simulated blood that opens on the hole stopper operation panel 101 on the via hole flows into and holds blood chamber 102, hold blood chamber 102 and be connected with simulated blood recovery case 4, hold and be provided with first valve 7 between blood chamber 102 and the simulated blood recovery case 4, simulated blood recovery case 4 and simulated blood tank 3 are connected, be provided with second valve 6 between simulated blood recovery case 4 and the simulated blood tank 3.
Wherein, hold blood chamber 102 bottom and be V-arrangement structure, the both ends of this V-arrangement structure have the difference in height, are convenient for simulate blood flow direction and simulate blood recovery case 4, hold and are provided with the filter screen between blood chamber 102 and the simulate blood recovery case 4, are provided with the discharge valve on the simulate blood storage tank 3.
The solenoid valve 13, the pressurizing device 8, and the controller are installed in the electronic control cabinet 5.
As shown in fig. 3, a first pressure gauge 9, a pressure regulating valve 10 and a second pressure gauge 11 are arranged between the pressurizing device 8 and the blood tank, the first pressure gauge 9 is used for detecting the pressure output by the pressurizing device 8, the pressure regulating valve 10 is used for regulating the pressure output by the pressurizing device 8, and the second pressure gauge 11 is used for detecting the pressure input into the simulated blood tank 3. A third pressure gauge 12 and a flow gauge 14 are arranged between the simulated blood tank 3 and the simulated blood vessel 2, the third pressure gauge 12 is used for detecting the pressure of the outlet of the simulated blood tank 3, the flow gauge 14 is used for detecting the flow of the simulated blood, and the pressure applied to the simulated blood tank 3 by the pressurizing device 8 is regulated through the pressure regulating valve 10, so that the pressure of the simulated blood provided by the simulated blood tank 3 is the same as the blood pressure of a human body, the simulated teaching and examination environment is the same as the actual operation environment of a doctor, for example, the pressure in the simulated blood tank 3 is controlled to be 80-120mmHg.
As shown in fig. 4, a teaching device for simulating arterial vessel ligation of a human body further comprises a controller and a touch screen;
an electromagnetic valve 13 is arranged between the simulated blood tank 3 and the simulated blood vessel 2, and a controller is connected with the electromagnetic valve 13 to control the simulated blood tank 3 to supply blood to the simulated blood vessel 2. The simulated blood storage tank 3 is provided with a liquid level meter which is connected with a controller, and the controller is connected with an alarm.
The touch screen is connected with the controller, is provided with shift knob on the touch screen, and time setting button and display area are used for showing information such as operating time, liquid flow, liquid height and pressure through the time setting button start or stop, can set up the time that solenoid valve 13 was opened through time setting button, and the time delay sets up, realizes regularly examining or practising.
The liquid level in the simulated blood tank 3 is detected by the liquid level meter, and when the liquid level in the simulated blood tank 3 is lower than a critical value, the controller controls the alarm to alarm so as to remind the user to add the simulated blood.
For example, the controller in the embodiment of the present invention may be a PLC or a single chip microcomputer, and the pressurizing device 8 may be a compressor.
Optionally, a caster is arranged at the bottom of the test stand 1 for convenient movement, and when moving, the caster pedal is loosened, and when working, the fixed position of the caster pedal is pressed down.
When the device is used, the pressure in the simulated blood storage tank 3 is pressurized through the pressurizing device 8, the pressure is observed through the first pressure gauge 9 and the second pressure gauge 11, the pressure in the simulated blood storage tank 3 is regulated through the pressure regulating valve 10, the pressure in the simulated blood storage tank 3 is the same as the blood pressure of a human body, the electromagnetic valve 13 is controlled to be opened by the controller, blood is supplied to the simulated blood vessels 2, wherein each simulated blood vessel 2 can be provided with a separate valve, the separate valve is controlled independently, during operation, a through hole on the surface of the operation table 101 is plugged by using a hole plug, after the end, the hole plug is opened, simulated blood enters the blood containing cavity 102, the first valve 7 is opened to enter the simulated blood recovery tank 4, the second valve 6 is opened, the simulated blood flows into the simulated blood storage tank 3, and one working cycle is completed.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The teaching device for simulating human arterial vessel ligation is characterized by comprising a test bed (1), a simulated vessel (2), a simulated blood storage tank (3) and a pressurizing device (8);
the test bed is provided with a cofferdam, a plurality of simulated blood vessels (2) are arranged in the cofferdam, the simulated blood vessels (2) are connected with a simulated blood storage tank (3), a pressurizing device (8) is connected with the simulated blood storage tank (3), and the pressurizing device (8) is used for providing stable simulated human body pressure for the simulated blood storage tank (3);
an operation table (101) is arranged in the cofferdam of the test bed (1), a blood accommodating cavity (102) is arranged below the operation table (101), a plurality of through holes are formed in the operation table (101), hole plugs are arranged on the through holes, the blood accommodating cavity (102) is connected with a simulated blood recovery tank (4), a first valve (7) is arranged between the blood accommodating cavity (102) and the simulated blood recovery tank (4), the simulated blood recovery tank (4) is connected with a simulated blood storage tank (3), and a second valve (6) is arranged between the simulated blood recovery tank (4) and the simulated blood storage tank (3); the bottom of the test stand (1) is provided with casters.
2. The teaching device for simulating human arterial blood vessel ligation according to claim 1, wherein the bottom of the blood containing cavity (102) is of a V-shaped structure, and a filter screen is arranged between the blood containing cavity (102) and the simulated blood recovery tank (4).
3. The teaching device for simulating human arterial vessel ligation according to claim 1, further comprising a controller;
an electromagnetic valve (13) is arranged between the simulated blood storage tank (3) and the simulated blood vessel (2), and a controller is connected with the electromagnetic valve (13) to control the simulated blood storage tank (3) to supply blood to the simulated blood vessel (2).
4. A teaching device for simulating ligation of arterial blood vessels of a human according to claim 3 further comprising a touch screen, the touch screen being connected to the controller.
5. A teaching device for simulating human arterial vessel ligation as claimed in claim 3, characterised in that a level gauge is provided in the simulated blood tank (3), the level gauge being connected to a controller, the controller being connected to an alarm.
6. The teaching device for simulating human arterial ligation according to claim 1, wherein a first pressure gauge (9), a pressure regulating valve (10) and a second pressure gauge (11) are arranged between the pressurizing device (8) and the blood storage tank, the first pressure gauge (9) is used for detecting the pressure output by the pressurizing device (8), the pressure regulating valve (10) is used for regulating the pressure output by the pressurizing device (8), and the second pressure gauge (11) is used for detecting the pressure input into the simulated blood storage tank (3).
7. A teaching device for simulating human arterial ligation as claimed in claim 1, characterised in that a third pressure gauge (12) and a flow gauge (14) are arranged between the simulated blood reservoir (3) and the simulated blood vessel (2), the third pressure gauge (12) being arranged to detect the pressure at the outlet of the simulated blood reservoir (3), the flow gauge (14) being arranged to detect the simulated blood flow.
8. A teaching device for simulating human arterial ligation as claimed in claim 1 characterised in that the simulated blood reservoir (3) is provided with an exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425146.0A CN108122466B (en) | 2017-12-25 | 2017-12-25 | Teaching device for simulating human arterial vessel ligation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425146.0A CN108122466B (en) | 2017-12-25 | 2017-12-25 | Teaching device for simulating human arterial vessel ligation |
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| Publication Number | Publication Date |
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| CN108122466A CN108122466A (en) | 2018-06-05 |
| CN108122466B true CN108122466B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711425146.0A Active CN108122466B (en) | 2017-12-25 | 2017-12-25 | Teaching device for simulating human arterial vessel ligation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916977A (en) * | 2019-12-18 | 2022-08-19 | 哈尔滨商业大学 | Artery ligation tension detector with pointer |
| CN112325938B (en) * | 2020-10-30 | 2022-06-28 | 中国人民解放军陆军军医大学 | Upper limbs tourniquet effect measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853600A (en) * | 2009-04-02 | 2010-10-06 | 微创医疗器械(上海)有限公司 | Blood vessel model and blood circulation simulating device using same |
| CN201757952U (en) * | 2010-08-11 | 2011-03-09 | 北京大学人民医院 | Tool for hemostasis training of blood vessel ligation |
| CN206516216U (en) * | 2016-10-25 | 2017-09-22 | 宁波创导三维医疗科技有限公司 | A kind of use vascular pattern simulates the device of blood circulation of human body |
| CN208507063U (en) * | 2017-12-25 | 2019-02-15 | 西安医学院第二附属医院 | It is a kind of for simulating the instructional device of human body artery vascular ligation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7866983B2 (en) * | 2006-01-13 | 2011-01-11 | East Tennessee State University Research Foundation | Surgical simulator system |
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- 2017-12-25 CN CN201711425146.0A patent/CN108122466B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853600A (en) * | 2009-04-02 | 2010-10-06 | 微创医疗器械(上海)有限公司 | Blood vessel model and blood circulation simulating device using same |
| CN201757952U (en) * | 2010-08-11 | 2011-03-09 | 北京大学人民医院 | Tool for hemostasis training of blood vessel ligation |
| CN206516216U (en) * | 2016-10-25 | 2017-09-22 | 宁波创导三维医疗科技有限公司 | A kind of use vascular pattern simulates the device of blood circulation of human body |
| CN208507063U (en) * | 2017-12-25 | 2019-02-15 | 西安医学院第二附属医院 | It is a kind of for simulating the instructional device of human body artery vascular ligation |
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