Device for simulating limb arteriovenous hemorrhage
By combining a simulated blood collection device and a blood pressure circulation control box, the system accurately simulates rapid bleeding due to arterial hypertension and slow oozing due to venous hypotension, solving the problem of inaccurate simulation in existing devices and improving the realism of training and emergency response capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-10
AI Technical Summary
Existing simulation training devices fail to adequately simulate the hemodynamic characteristics of arterial and venous bleeding, especially in simulating the differences between arterial and venous bleeding, resulting in limited training effectiveness and failing to meet the requirements of advanced medical skills training.
A device for simulating arterial and venous bleeding in limbs was designed, including a simulated blood collection device, a blood pressure circulation control box, and a simulated limb. By setting up arterial and venous tubing groups, combined with a blood circulation pump, solenoid valve, and hydraulic sensor, it can accurately simulate rapid bleeding under high arterial pressure and slow venous bleeding under low pressure, and has pressure regulation and real-time monitoring functions.
It enhances the realism of training, helps medical staff become familiar with the techniques for handling arterial and venous bleeding, improves emergency response capabilities, and can accurately simulate blood pressure changes under different conditions, including scenarios such as normal blood circulation, arterial hypertension bleeding, and venous hypotension bleeding.
Smart Images
Figure CN224109910U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the medical teaching model technical field especially, relate to a kind of simulated simulation limb arteriovenous hemorrhage device. BACKGROUND
[0002] In the field of medical education, first aid skill training and medical device development, there is an urgent need for training equipment that can accurately simulate human physiological responses. Especially in handling emergency medical situations such as arteriovenous hemorrhage, medical personnel need to be able to practice repeatedly in conditions close to real environment to improve their emergency handling ability and treatment efficiency. However, existing simulation training devices are mostly limited to basic anatomical structure simulation, lacking in-depth replication of blood hemodynamic characteristics, especially in simulating arteriovenous hemorrhage, a key link.
[0003] Current market simulation devices usually use simple liquid circulation systems to simulate blood flow, but these systems often ignore the dynamic changes of blood pressure, the complexity of the bleeding process and the differences in bleeding types (such as arterial bleeding and venous bleeding). Arterial bleeding usually presents as high-pressure rapid bleeding, while venous bleeding is usually low-pressure slow bleeding. Existing models fail to fully simulate these characteristics, resulting in limited training effectiveness and failing to meet the requirements of advanced medical skill training.
[0004] Therefore, the inventors have endeavored to design a bleeding device to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to provide a kind of simulated simulation limb arteriovenous hemorrhage device, can accurately simulate human arteriovenous hemorrhage, including arterial high-pressure rapid bleeding and venous low-pressure slow bleeding, with pressure regulation and real-time monitoring function simultaneously.
[0006] To achieve the above purpose, the utility model adopts a kind of technical scheme:
[0007] A kind of simulated simulation limb arteriovenous hemorrhage device, including simulation blood reservoir and simulation limb, blood pressure circulation control box with pressure regulation and monitoring function is equipped between the simulation blood reservoir and the simulation limb, the simulation blood reservoir is connected with the blood pressure circulation control box by liquid suction pipe, simulation arterial blood supply and arterial hemorrhage are simulated in the simulation limb, and arterial tube group and venous tube group for simulating venous blood supply and venous hemorrhage are provided in the simulation limb, the liquid outlet of the blood pressure circulation control box is communicated with the backflow port of the simulation blood reservoir and the arterial hemorrhage port on the simulation limb through the arterial tube group, or the liquid outlet of the blood pressure circulation control box is communicated with the backflow port of the simulation blood reservoir and the venous hemorrhage port on the simulation limb through the venous tube group.
[0008] As an improvement of the simulation simulation limb arteriovenous bleeding device, the blood pressure circulation control box comprises a box body, a blood circulation pump, an electromagnetic valve and a PCB board, the blood circulation pump, the electromagnetic valve and the PCB board are located in the box body, the blood circulation pump and the electromagnetic valve are located on the part of the liquid suction pipe extending into the box body and are electrically connected with the PCB board.
[0009] As an improvement of the simulation simulation limb arteriovenous bleeding device, the blood circulation pump and the electromagnetic valve are sequentially arranged along the flow direction of the liquid in the liquid suction pipe.
[0010] As an improvement of the simulation simulation limb arteriovenous bleeding device, the box body is provided with a liquid outlet pipe, the PCB board is electrically connected with a hydraulic sensor, the hydraulic sensor is located on the pressure pipeline, and the liquid suction pipe is communicated with the pressure pipeline and the liquid outlet pipe through a three-way pipeline.
[0011] As an improvement of the simulation simulation limb arteriovenous bleeding device, a plurality of pulse frequency display lamps, a vein display lamp and a pulse frequency and arteriovenous switching button are arranged on the control panel of the blood pressure circulation control box.
[0012] As an improvement of the simulation simulation limb arteriovenous bleeding device, a plurality of pressure display lamps, a pressure setting button, a pressure adjusting knob and a real-time pressure display screen are arranged on the control panel of the blood pressure circulation control box.
[0013] As an improvement of the simulation simulation limb arteriovenous bleeding device, the simulation limb is a simulation arm or a simulation leg.
[0014] As an improvement of the simulation simulation limb arteriovenous bleeding device, the arterial pipe group comprises an arterial liquid inlet pipe, an arterial overflow pipe and an arterial bleeding pipe, one end of the arterial liquid inlet pipe extends out of the simulation limb for butt joint with the liquid outlet of the blood pressure circulation control box, the other end of the arterial liquid inlet pipe is communicated with the arterial overflow pipe and the arterial bleeding pipe through an arterial three-way pipe to form a Y shape, the liquid outlet end of the arterial overflow pipe is used for inserting into the simulation blood accumulator, and the outlet of the arterial bleeding pipe is located at the arterial bleeding port.
[0015] As an improvement of the simulated simulation limb arteriovenous bleeding device, the venous pipe group includes a venous liquid inlet pipe, a venous overflow pipe and a venous bleeding pipe, one end of the venous liquid inlet pipe extends to outside the simulation limb for butt joint with the liquid outlet of the blood pressure circulation control box, the other end of the venous liquid inlet pipe is communicated with the venous overflow pipe and the venous bleeding pipe through a venous three-way pipe to form a Y shape, the liquid outlet of the venous overflow pipe is used for inserting into the simulated blood accumulator, and the outlet of the venous bleeding pipe is located at the venous bleeding port.
[0016] As an improvement of the simulated simulation limb arteriovenous bleeding device, the simulated blood accumulator is internally provided with a liquid suction pipe, a connecting pipe is inserted at the top of the simulated blood accumulator, the liquid suction pipe is butt jointed and communicated with the liquid suction pipe through the connecting pipe, the backflow port is located at the top of the simulated blood accumulator, the venous bleeding port is located on the venous bleeding wound surface of the simulation limb, and the arterial bleeding port is located on the arterial bleeding wound surface of the simulation limb.
[0017] Compared with the prior art, the simulated simulation limb arteriovenous bleeding device, which takes the simulated blood accumulator as a simulated blood storage and supply unit and integrates pressure regulation and monitoring in the blood pressure circulation control box, can simulate high-pressure rapid bleeding when an artery is ruptured and low-pressure slow bleeding when a vein is damaged, and the arterial pipe group and the venous pipe group are arranged in the simulation limb, so that the liquid outlet of the blood pressure circulation control box is communicated with the backflow port of the simulated blood accumulator and the arterial bleeding port on the simulation limb through the arterial pipe group, so as to accurately simulate arterial blood supply and arterial bleeding, or the liquid outlet of the blood pressure circulation control box is communicated with the backflow port of the simulated blood accumulator and the venous bleeding port on the simulation limb through the venous pipe group, so as to accurately simulate venous blood supply and venous bleeding, thereby simulating blood pressure changes in different states, including normal blood circulation, arterial high-pressure bleeding and venous low-pressure bleeding, so as to not only enhance the reality of training, but also help medical staff to be familiar with the skills of treating arteriovenous bleeding and improve their emergency handling ability. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structure schematic view of the simulated simulation limb arteriovenous bleeding device of the utility model using a simulation arm for simulation.
[0019] Figure 2 It is an enlarged view of A in Figure 1
[0020] Figure 3 It is a sectional view of the simulated blood accumulator of the utility model.
[0021] Figure 4 It is an enlarged view of B in Figure 3
[0022] Figure 5 is a perspective view of the blood pressure circulation control box of the utility model;
[0023] Figure 6 is a schematic view of the internal structure of the blood pressure circulation control box of the utility model;
[0024] Figure 7 is a structure enlarged schematic view of the simulation arm of the utility model;
[0025] Figure 8 is a structure schematic view of the simulation limb arteriovenous bleeding device using the simulation leg for simulation.
[0026] Illustration:
[0027] 1, simulation blood storage device; 11, cover; 12, connecting pipe; 13, plug; 131, sealing element; 14, suction tube; 2, blood pressure circulation control box; 21, box body; 211, pressure display lamp; 212, pulse frequency display lamp; 213, venous display lamp; 22, pressure adjusting knob; 23, pressure setting button; 24, real-time pressure display screen; 25, pulse frequency and arteriovenous switching button; 26, blood circulation pump; 27, electromagnetic valve; 28, PCB board; 281, hydraulic sensor; 3, simulation arm; 31, arterial bleeding wound surface; 32, venous bleeding wound surface; 4, liquid suction pipe; 41, three-way pipeline; 411, pressure pipeline; 412, liquid outlet pipe; 5, arterial liquid inlet pipe; 51, arterial bleeding pipe; 511, arterial bleeding port; 52, arterial overflow pipe; 53, arterial three-way pipe; 54, arterial pipe group; 6, venous liquid inlet pipe; 61, venous bleeding pipe; 611, venous bleeding port; 62, venous overflow pipe; 63, venous three-way pipe; 64, venous bleeding pipe; 7, simulation leg. DETAILED DESCRIPTION
[0028] The embodiments of the utility model will be specifically illustrated below in combination with the drawings, the drawings are only for reference and illustration, and do not constitute the limitation of the patent protection scope of the utility model.
[0029] Reference Figures 1 to 8The application discloses a device for simulating arteriovenous hemorrhage of a limb, which comprises a simulated blood storage device 1, a blood pressure circulation control box 2 and a simulated limb, wherein the blood pressure circulation control box 2 has pressure regulating and monitoring functions, the blood pressure circulation control box 2 is located between the simulated blood storage device 1 and the simulated limb, the simulated blood storage device 1 is connected with the blood pressure circulation control box 2 through a suction tube 4, an arterial pipe group 54 and a venous pipe group 64 are arranged in the simulated limb, the arterial pipe group 54 is used for simulating arterial blood supply and arterial hemorrhage, the venous pipe group 64 is used for simulating venous blood supply and venous hemorrhage, a liquid outlet of the blood pressure circulation control box 2 is communicated with a backflow port of the simulated blood storage device 1 and an arterial hemorrhage port 511 on the simulated limb through the arterial pipe group 54, or a liquid outlet of the blood pressure circulation control box 2 is communicated with the backflow port of the simulated blood storage device 1 and a venous hemorrhage port 611 on the simulated limb through the venous pipe group 64.
[0030] With reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the simulated blood storage device 1 is used as a simulated blood storage and supply unit, has sufficient capacity to meet the training requirements for a long time. The simulated blood storage device 1 comprises a body and a cover 11, the cover 11 is arranged on the top of the body, a connecting pipe 12 is arranged on the top of the cover 11 of the simulated blood storage device 1, the connecting pipe 12 is communicated with the inside of the simulated blood storage device 1, a backflow port is arranged on the top of the cover 11 of the simulated blood storage device 1, a sealing element 131 is arranged at the backflow port on the top of the cover 11, one end of the sealing element 131 is annular and coaxially arranged with the backflow port, the other end of the sealing element 131 is provided with a plug 13, the sealing element 131 is bent, so that the plug 13 can be inserted into the backflow port to close the backflow port, a suction pipe 14 is arranged in the simulated blood storage device 1, a top end of the suction pipe 14 is sleeved with a part of the connecting pipe 12 arranged in the simulated blood storage device 1, an inlet of the suction tube 4 is sleeved with another part of the connecting pipe 12 arranged outside the simulated blood storage device 1, the suction tube 4 is connected and communicated with the suction pipe 14 through the connecting pipe 12, and a liquid outlet of the suction tube 4 is inserted into the blood pressure circulation control box 2.
[0031] With reference to Figure 1 , Figure 5 and Figure 6The blood pressure circulation control box 2 integrates pressure regulation and monitoring two core functions. Through the precise regulation mechanism, the blood pressure changes in different states can be simulated, including normal blood circulation, arterial hypertension bleeding and venous hypotension bleeding, etc. At the same time, the blood pressure data in the simulation process can be monitored and fed back in real time to ensure the authenticity and safety of the training. The blood pressure circulation control box 2 comprises a box body 21, a blood circulation pump 26, an electromagnetic valve 27 and a PCB board 28. The box body 21 is in the shape of a box. A plurality of pressure display lamps 211, a pressure setting button 23, a pressure regulation knob 22, a real-time pressure display screen 24, a plurality of pulse frequency display lamps 212, a venous display lamp 213 and a pulse frequency and arterial-venous switching button 25 are arranged on the control panel at the top of the box body 21. The number of pressure display lamps 211 is preferably five. The five pressure display lamps 211 and the pressure setting button 23 are arranged in a row at the left end of the control panel. The control panel has corresponding labels of 67Kpa / 500mmHg, 53Kpa / 400mmHg, 40Kpa / 300mmHg, 33Kpa / 250mmHg and 27Kpa / 200mmHg beside the five pressure display lamps 211. The number of pulse frequency display lamps 212 is preferably four. The four pulse frequency display lamps 212, the venous display lamp 213 and the pulse frequency and arterial-venous switching button 25 are arranged in a row at the right end of the control panel. The control panel has corresponding labels of 200 times / min, 160 times / min, 120 times / min and 80 times / min beside the four pulse frequency display lamps 212. The real-time pressure display screen 24 is located between the row of pressure display lamps 211 and the row of pulse frequency display lamps 212. The pressure regulation knob 22 is located between the pressure setting button 23 and the pulse frequency and arterial-venous switching button 25. The blood circulation pump 26, the electromagnetic valve 27 and the PCB board 28 are located in the box body 21. The blood circulation pump 26 can reach a blood pumping pressure of 500mmHg. The blood circulation pump 26 and the electromagnetic valve 27 are located at the part of the liquid suction pipe 4 extending into the box body 21 and are electrically connected with the PCB board 28. Specifically, the blood circulation pump 26 and the electromagnetic valve 27 are arranged in sequence along the flow direction of the liquid in the liquid suction pipe 4, so that the electromagnetic valve 27 can adjust the liquid flow rate sucked by the blood circulation pump 26. The inside of the box body 21 is also provided with a three-way pipe 41, a liquid outlet pipe 412 and a hydraulic sensor 281. The liquid outlet pipe 412 is specifically located at the liquid outlet of the box body 21. The liquid outlet end of the liquid suction pipe 4 is communicated with the pressure pipeline 411 and the liquid outlet pipe 412 through the three-way pipe 41. The PCB board 28 is electrically connected with a hydraulic sensor 281. The hydraulic sensor 281 is located on the pressure pipeline 411. The hydraulic sensor 281 is used for measuring the liquid pressure flowing out of the liquid suction pipe 4.
[0032] Referring to Figure 1 , Figure 7 and 8The simulated limb of this invention is a simulated arm 3 or a simulated leg 7. Its blood vessels can withstand a pressure of 500 mmHg, and the blood vessels can still form a normal circulatory pathway even after multiple twists and turns. The simulated arm 3 has arteries and veins, including the brachial artery, radial artery, median cubital vein, cephalic vein, and basilic vein. Bleeding includes arterial bleeding and venous bleeding. The simulated skin surface of the simulated arm 3 has an arterial bleeding wound 31 and a venous bleeding wound 32. The venous bleeding outlet 611 is located on the venous bleeding wound 32, and the arterial bleeding outlet 511 is located on the arterial bleeding wound 31. The arterial bleeding outlet 511 is closer to the palm of the simulated arm 3 than the venous bleeding wound 32. Bleeding points 611 and 511 are located near the wrist of the simulated arm 3 (simulating the ulnar artery and ulnar vein), with one arterial bleeding point and one venous bleeding point. The simulated arm 3 contains an arterial tube assembly 54 and a venous tube assembly 64. The arterial tube assembly 54 includes an arterial inlet tube 52, an arterial overflow tube 5, and an arterial outlet tube 51. The inlet end of the arterial inlet tube 52 extends outside the simulated arm 3 to connect with the outlet of the blood pressure circulation control box 2 (i.e., the outlet of the outlet tube 412). The outlet end of the arterial inlet tube 52 is connected to the arterial overflow tube 52 and the arterial outlet tube 51 via an arterial three-way tube 53, forming a Y-shape. The outlet end of the arterial overflow tube 52 is used to insert into the simulated storage... Inside the blood collection device 1, the outlet of the arterial outflow vessel 51 is located at the arterial bleeding point 511. The venous tube assembly 64 includes a venous inlet tube 6, a venous overflow tube 62, and a venous outflow vessel 61. The inlet end of the venous inlet tube 6 extends outside the simulated arm 3 and is used to connect with the outlet of the blood pressure circulation control box 2 (i.e., the outlet of the outlet tube 412). The outlet end of the venous inlet tube 6 is connected to the venous overflow tube 62 and the venous outflow vessel 61 through a venous three-way tube 63 to form a Y-shape. The outlet end of the venous overflow tube 62 extends outside the simulated arm 3 and is used to insert into the simulated blood collection device 1. The outlet of the venous outflow vessel 61 is located at the venous bleeding point 611. The simulated leg 7 has a femoral artery. The simulated leg 7 also has an arterial bleeding wound 31 and a venous bleeding wound 32 on its simulated skin surface. The venous bleeding outlet 611 is located on the venous bleeding wound 32, and the arterial bleeding outlet 511 is located on the arterial bleeding wound 31. The arterial bleeding outlet 511 is closer to the sole of the simulated leg 7 than the venous bleeding wound 32. The venous bleeding outlet 611 and the arterial bleeding outlet 511 of the simulated leg 7 are located in the lower leg (simulating the posterior tibial artery and posterior tibial vein), with one arterial and one venous bleeding point. The simulated leg 7 also has an arterial tube group 54 and a venous tube group 64. The structure and principle of the arterial tube group 54 and the venous tube group 64 in the simulated leg 7 are basically the same as those of the simulated arm 3, and will not be described further.
[0033] Reference Figures 1 to 8 The working principle of this utility model's simulated limb arterial and venous bleeding device is as follows:
[0034] When the arterial bleeding needs to be simulated, the arterial inlet tube 5 on the simulation arm 3 or the simulation leg 7 is connected with the outlet tube 412 of the blood pressure circulation control box 2, then the plug 13 is opened, the outlet end of the arterial overflow tube 52 is inserted into the simulation blood accumulator 1 from the backflow port of the simulation blood accumulator 1, and the arterial tube group 54 of the simulation arm 3 or the simulation leg 7 is connected.
[0035] The PCB board 28 controls the blood circulation pump 26 to start, the blood circulation pump 26 draws the liquid in the simulation blood accumulator 1 into the blood pressure circulation control box 2 through the suction tube 4, the liquid drawn by the blood circulation pump 26 is adjusted in flow by the electromagnetic valve 27, then is branched by the three-way pipe 41, part of the liquid enters the pressure pipeline 411 to measure the pressure by the hydraulic pressure sensor 281, and the other part of the liquid flows out of the blood pressure circulation control box 2 through the outlet tube 412, the liquid flowing out of the outlet tube 412 flows into the arterial inlet tube 5, then is branched by the arterial three-way pipe 53, part of the liquid flows back to the simulation blood accumulator 1 through the arterial overflow tube 52, and the other part of the liquid flows out of the arterial bleeding port 511 through the arterial bleeding tube 51.
[0036] When the venous bleeding needs to be simulated, the arterial inlet tube 5 is pulled out from the outlet port of the blood pressure circulation control box 2, the outlet end of the arterial overflow tube 52 is drawn out from the simulation blood accumulator 1, then the venous inlet tube 6 is connected with the outlet tube 412 of the blood pressure circulation control box 2, the outlet end of the venous overflow tube 62 is inserted into the simulation blood accumulator 1 from the backflow port of the simulation blood accumulator 1, and the venous tube group 64 of the simulation arm 3 or the simulation leg 7 is connected.
[0037] The PCB board 28 controls the blood circulation pump 26 to start, the blood circulation pump 26 draws the liquid in the simulation blood accumulator 1 into the blood pressure circulation control box 2 through the suction tube 4, the liquid drawn by the blood circulation pump 26 is adjusted in flow by the electromagnetic valve 27, then is branched by the three-way pipe 41, part of the liquid enters the pressure pipeline 411 to measure the pressure by the hydraulic pressure sensor 281, and the other part of the liquid flows out of the blood pressure circulation control box 2 through the outlet tube 412, the liquid flowing out of the outlet tube 412 flows into the arterial inlet tube 5, then is branched by the arterial three-way pipe 53, part of the liquid flows back to the simulation blood accumulator 1 through the arterial overflow tube 52, and the other part of the liquid flows out of the arterial bleeding port 511 through the arterial bleeding tube 51.
[0038] In the utility model, the design conditions of the circuit on the PCB board 28 are as follows:
[0039] (1), design circulation pump drive circuit and circulation liquid pressure detection circuit, the PCB board 28 controls the circulation action of the blood circulation pump 26 by detecting the pressure value of the liquid, and stops pumping blood when reaching the set pressure value;
[0040] (2), design arteriovenous control circuit, can realize the effect of arterial pulse rate, external can feel the arterial pulse. Arterial pulse rate can be adjusted, four kinds of pulse rate output mode is temporarily fixed;
[0041] (3), the circulation pump circuit board design and program design, hardware program reads the pressure value of hydraulic sensor 281 and set value comparison, when reaching the set value, stop pumping blood. External setting pressure value detection, through external setting to determine the pressure value of stopping pumping blood.
[0042] (4), display circuit design, can display the blood pressure value inside the blood vessel in real time, this value is measured by internal pressure sensor and displayed;
[0043] (5), simulation test, through the hydraulic gauge can accurately read the internal blood pressure when hemostasis, built-in liquid pressure sensor and external table pressure are compared, the pressure value error of the two is not more than 5mmHg, so as to determine the accuracy of the system output pressure.
[0044] The simulation limb arteriovenous bleeding device can complete the bleeding model of the simulation arm 3, and can also be switched to the bleeding model of the simulation leg 7, can be used for practicing hemostasis using buckle type, rotary pressure type hemostasis, and can also be applied to the medical service training in simulated battlefield environment. The upper and lower limb hemostasis model has a blood vessel passage, internal blood circulation, a bleeding point in a part of the limb, establishes a blood circulation passage, the blood pressure value in the pipe reaches 200-300mmHg of venous bleeding pressure and 300-500mmHg of arterial bleeding pressure. The blood circulation pump 26 reaches the pressure by pumping blood, the built-in hydraulic sensor 281, the venous pressure is divided into three gears: 200mmHg, 250mmHg and 300mmHg, and the arterial pressure is divided into three gears: 300mmHg, 400mmHg and 500mmHg. When external pressure makes internal blood pressure reach these gear values, blood circulation stops. The arterial pressure can be adjusted to four heart rates (80, 120, 160 and 200BPM). The tourniquet applies pressure to the limb, and when the pressure reaches the set pressure value, the purpose of hemostasis is achieved. The hydraulic gauge is connected to the whole circulation passage, and the current blood pump pressure value is displayed in real time. The pressure value can directly show the pressure value in the blood vessel during hemostasis.
[0045] The utility model discloses a simulation simulation limb arteriovenous bleeding device, aims at solving the blank in the prior art, provides a kind of can accurately simulate human arteriovenous bleeding condition, including arteriovenous bleeding and slow seepage of venous low pressure, simultaneously possess pressure regulation and real-time monitoring function's training equipment.The core of the device is its highly simulated design, including simulation blood reservoir 1, simulation limb and the blood pressure circulation control box 2 with pressure regulation and monitoring function.Simulation blood reservoir 1 is as the storage and supply unit of simulated blood, design has enough capacity to maintain long time training demand.Simulation limb is highly simulated human limb model, and complex vascular network is arranged inside, especially arteriolar group 54 and venous tube group 64, to accurately simulate the function of arterial blood supply, arterial hemorrhage and venous blood supply, venous hemorrhage.Blood pressure circulation control box 2 integrates two major core functions of pressure regulation and monitoring.Through accurate adjustment mechanism, the blood pressure change under different states can be simulated, including normal blood circulation, arteriovenous bleeding and venous low pressure seepage etc. scene.The utility model designs arteriovenous bleeding mouth 511 and venous bleeding mouth 611 on simulation limb, and through the accurate adjustment of blood pressure circulation control box, the high pressure rapid bleeding of arterial rupture and the low pressure slow seepage of venous damage can be simulated.This design not only enhances the real sense of training, but also can help medical staff to be familiar with the skill of handling arteriovenous bleeding, and improve their emergency handling ability.
[0046] In conclusion, the simulation simulation limb arteriovenous bleeding device of the utility model not only has high degree of simulation and flexibility, can adjust simulation condition according to actual training demand, but also provides instant feedback through integrated monitoring function, greatly improves the actual operation ability of medical staff in dealing with arteriovenous bleeding emergency, and has remarkable education and training value.
[0047] The above disclosed is only the preferred embodiment of the utility model, and cannot be used to limit the right protection range of the utility model, so equivalent changes made in the patent application range of the utility model still belong to the range covered by the utility model.
Claims
1. A device for simulating arterial and venous bleeding in limbs, characterized in that, The simulation blood storage device and the simulation limb are provided with a blood pressure circulation control box with pressure regulation and monitoring functions, the simulation blood storage device is connected with the blood pressure circulation control box through a suction tube, the simulation limb is provided with an arterial pipe group for simulating arterial blood supply and arterial bleeding and a venous pipe group for simulating venous blood supply and venous bleeding, the outlet of the blood pressure circulation control box is communicated with the backflow port of the simulation blood storage device and the arterial bleeding port on the simulation limb through the arterial pipe group, or the outlet of the blood pressure circulation control box is communicated with the backflow port of the simulation blood storage device and the venous bleeding port on the simulation limb through the venous pipe group.
2. The simulated arterial-venous bleeding device of claim 1, wherein, The blood pressure circulation control box comprises a box body, a blood circulation pump, an electromagnetic valve and a PCB board, the blood circulation pump, the electromagnetic valve and the PCB board are located in the box body, the blood circulation pump and the electromagnetic valve are located at the position where the suction tube extends into the box body and are electrically connected with the PCB board.
3. The simulated arterial-venous bleeding device of claim 2, wherein, The blood circulation pump and the electromagnetic valve are sequentially arranged along the flow direction of the liquid in the suction tube.
4. The simulated arterial-venous bleeding device of claim 2, wherein, The outlet of the box body is provided with an outlet tube, the PCB board is electrically connected with a hydraulic sensor, the hydraulic sensor is located on a pressure pipeline, and the suction tube is communicated with the pressure pipeline and the outlet tube through a three-way pipeline.
5. The simulated arterial-venous bleeding device of claim 1, wherein, A plurality of pulse frequency display lamps, a venous display lamp and a pulse frequency and arterial-venous switching button are arranged on the control panel of the blood pressure circulation control box.
6. The simulated arterial-venous bleeding device of claim 1 or 5, wherein, A plurality of pressure display lamps, a pressure setting button, a pressure adjusting knob and a real-time pressure display screen are arranged on the control panel of the blood pressure circulation control box.
7. The simulated arterial-venous bleeding device of claim 1, wherein, The simulation limb is a simulation arm or a simulation leg.
8. The simulated arterial-venous bleeding device of claim 1, wherein, The arterial pipe group comprises an arterial liquid inlet pipe, an arterial overflow pipe and an arterial bleeding pipe, one end of the arterial liquid inlet pipe extends out of the simulation limb and is used for docking with the outlet of the blood pressure circulation control box, the other end of the arterial liquid inlet pipe is communicated with the arterial overflow pipe and the arterial bleeding pipe through an arterial three-way pipe to form a Y shape, the outlet end of the arterial overflow pipe is used for being inserted into the simulation blood storage device, and the outlet of the arterial bleeding pipe is located at the arterial bleeding port.
9. The simulated arterial-venous bleeding device of claim 1 or 8, wherein, The venous pipe group comprises a venous liquid inlet pipe, a venous overflow pipe and a venous bleeding pipe, one end of the venous liquid inlet pipe extends out of the simulation limb and is used for docking with the outlet of the blood pressure circulation control box, the other end of the venous liquid inlet pipe is communicated with the venous overflow pipe and the venous bleeding pipe through a venous three-way pipe to form a Y shape, the outlet end of the venous overflow pipe is used for being inserted into the simulation blood storage device, and the outlet of the venous bleeding pipe is located at the venous bleeding port.
10. The simulated arterial-venous bleeding device of claim 1, wherein, The simulation blood storage device is provided with a liquid suction pipe, a connecting pipe is inserted into the top of the simulation blood storage device, the suction tube is docked and communicated with the liquid suction pipe through the connecting pipe, the backflow port is located at the top of the simulation blood storage device, the venous bleeding port is located on the venous bleeding wound surface of the simulation limb, and the arterial bleeding port is located on the arterial bleeding wound surface of the simulation limb.