Pulse type pipe washing teaching and training device with intelligent monitoring function

Abstract

The invention relates to the field of pipe washing teaching and training devices, in particular to an intelligent monitoring pulse type pipe washing teaching and training device which comprises a bottom plate, a blood vessel simulation pipeline installed on the bottom plate and a simulation circulating pump installed on the blood vessel simulation pipeline and used for driving liquid in the blood vessel simulation pipeline to circulate. A first pressure sensor is installed on the blood vessel simulation pipeline, the blood vessel simulation pipeline comprises a U-shaped pipeline assembly, a first T-shaped three-way valve and an inclined three-way valve, the first T-shaped three-way valve and the inclined three-way valve are installed at the two ends of the U-shaped pipeline assembly, and an inlet and an outlet of the simulation circulating pump are communicated with the first T-shaped three-way valve and the inclined three-way valve through pipelines respectively. According to the pulse type pipe washing teaching and training device capable of intelligently monitoring, the real-time thrust and the liquid flow speed of an injector of an operator can be visually seen, and errors of a trained person can be quickly known and corrected by performing data detection and comparison on the pipeline liquid flow in the operation process of an experienced person and the trained person.

Description

Technical Field

[0001] The present invention relates to the field of teaching and training devices for flushing tubes, and specifically to an intelligent monitoring pulse flushing tube teaching and training device. Background Art

[0002] Clinical Requirements In the medical field, the flushing tube operation is an important link in nursing work. After operations such as intravenous infusion, blood transfusion, and drug administration, it is necessary to flush the tube to prevent drug residues, block the pipeline, and avoid drug-induced tube blockage caused by the interaction between different drugs. Especially for some patients with long-term indwelling venous catheters, correct flushing tube operations are crucial for maintaining catheter patency and reducing the complications of tube blockage.

[0003] Deficiencies of Traditional Teaching Methods Lack of intuitiveness: Traditional flushing tube teaching mainly relies on teachers' oral explanations and simple model demonstrations, making it difficult for students to intuitively understand key links such as pressure changes and liquid flow states during the flushing tube process.

[0004] Unable to monitor in real time: During actual operation practice, it is impossible to timely and accurately monitor whether the students' flushing tube operations are standardized, such as whether the flushing tube pressure is appropriate and whether the pulse frequency is correct, which is not conducive to students discovering and correcting their operation errors in a timely manner.

[0005] Difficult to evaluate training effects: Due to the lack of objective data recording and analysis, the evaluation of students' training effects often relies on teachers' subjective judgments, which are not accurate and comprehensive enough, and it is difficult to improve students' operation skills targeted.

[0006] Promotion of Technological Development With the continuous progress of technology, the application of intelligent monitoring technology in medical devices is becoming increasingly widespread. Introducing intelligent monitoring technology into the pulse flushing tube teaching and training device can collect various data during the flushing tube process in real time, such as pressure, flow rate, flow velocity, interval time, etc., and through data analysis and processing, provide intuitive feedback information for students and teachers, which helps to improve the quality and effect of teaching and training. At the same time, the pulse flushing tube technology has been widely used clinically because it can more effectively remove residual substances in the pipeline and reduce the risk of blockage, and corresponding teaching and training devices are also needed to help students master this technology.

[0007] In the existing flushing tube device, the simulated blood cannot be completely discharged in time after use, causing the simulated blood to solidify in the simulated pipeline, which not only affects the transparency of the simulated pipeline but also easily blocks the simulated pipeline.

[0008] Therefore, we propose an intelligent monitoring pulse flushing tube teaching and training device to solve the above problems. Summary of the Invention

[0009] To solve the above technical problems, the present invention provides an intelligent monitoring pulse flushing tube teaching and training device.

[0010] An intelligent monitoring pulse flushing tube teaching and training device provided by the present invention includes a bottom plate, a blood vessel simulation pipeline installed on the bottom plate, and a simulation circulation pump installed on the blood vessel simulation pipeline for driving the liquid circulation in the blood vessel simulation pipeline. A first pressure sensor is installed on the blood vessel simulation pipeline. The blood vessel simulation pipeline includes a U-shaped pipeline component and a first T-shaped three-way valve and an inclined three-way valve installed at both ends of the U-shaped pipeline component. The inlet and outlet of the simulation circulation pump are respectively connected to the first T-shaped three-way valve and the inclined three-way valve through pipelines. An overflow component arranged vertically is installed at the middle interface of the first T-shaped three-way valve. A simulation indwelling tube is embedded at one interface of the inclined three-way valve, and the simulation indwelling tube is embedded in the U-shaped pipeline component. One end of the simulation indwelling tube is connected to a liquid flow sensor through a pipeline. A third T-shaped three-way valve is installed at one end of the liquid flow sensor. A second pressure sensor is connected to one interface of the third T-shaped three-way valve through a pipeline. A connector is installed at the other interface of the third T-shaped three-way valve through a pipeline, and a syringe is installed at the connector.

[0011] A cleaning component is installed on the top of the bottom plate. The cleaning component includes a cleaning pump and a box body fixed on the top of the bottom plate. A water bag is arranged in the box body. An air outlet and an air inlet are respectively arranged on the top and side wall of the box body. The air outlet is communicated with the air inlet end of the air bag on the top of the box body. A second one-way valve is installed in the air outlet. A third one-way valve is installed in the air inlet. The water outlet end of the cleaning pump is connected to the water inlet end of the water bag through a pipeline. The water outlet end of the water bag is connected to the connector through a pipeline. The air outlet end of the air bag is connected to the connector through a pipeline. The inlet and outlet of the simulation circulation pump are connected through a communicating pipe. First solenoid valves are installed on the pipelines between the connector and the water bag and the air bag and on the communicating pipe.

[0012] After use, open the first solenoid valve on the pipeline between the water bag and the connector, the first solenoid valve and the second solenoid valve on the communicating pipe, and start the cleaning pump. The water inlet end of the cleaning pump is connected to a clean water source. The clean water from the cleaning pump causes the water bag to expand. The expansion of the water bag squeezes the air in the box body. The second one-way valve in the air outlet opens, and the third one-way valve in the air inlet closes, causing the air bag to expand. At the same time, the water passes through the blood vessel simulation pipeline and is discharged along the drain pipe. After flushing for a period of time, close the drain pipe, open the first solenoid valve on the pipeline between the connector and the air bag, and allow the gas to enter the blood vessel simulation pipeline and be discharged along the drain pipe, so that the water is fully discharged, avoiding the coagulation of the simulated blood in the blood vessel simulation pipeline and affecting the smoothness and transparency of the blood vessel simulation pipeline. It is convenient for repeated use.

[0013] Preferably, the overflow assembly includes a vertical pipe fixed at the interface of the first T-shaped three-way valve. A second T-shaped three-way valve is installed at the top of the vertical pipe. One end interface of the second T-shaped three-way valve away from the vertical pipe is in an open state. An overflow pipe is installed at the middle interface of the second T-shaped three-way valve. A waste liquid basin is installed on the top of the bottom plate. One end of the overflow pipe away from the second T-shaped three-way valve is embedded in the waste liquid basin.

[0014] Preferably, it further includes a hand feeling training device. The hand feeling training device includes a simulated syringe placed on the bottom plate. The simulated syringe includes an injection sleeve and a piston installed in the injection sleeve. A push rod is embedded on one side of the piston. One end of the push rod is arranged outside the injection sleeve. A flat part is provided on the outer side wall of the injection sleeve. A number of tooth grooves are provided on the flat part. An elastic arm is fixed at the end of the push rod. A clamping tooth is provided at the end of the elastic arm, and the clamping tooth cooperates with the tooth groove. An inlet and an outlet are provided at the end of the injection sleeve. One-way valves are installed at both the inlet and the outlet. The inlet and the outlet are respectively communicated with the water outlet and the water inlet on the side wall of the waste liquid basin through water pipes.

[0015] Preferably, the U-shaped pipeline assembly includes two horizontally arranged horizontal pipes in parallel. A connecting pipe is provided between the two horizontal pipes, and the connecting pipe and the horizontal pipes are connected by elbows.

[0016] Preferably, a number of U-shaped card seats are fixed on the top of the bottom plate, and the horizontal pipes are arranged inside the U-shaped card seats.

[0017] Preferably, one end of one of the horizontal pipes is communicated with the first T-shaped three-way valve through a pipe clamp, and the end of the other horizontal pipe is communicated with one interface of the inclined three-way valve.

[0018] Preferably, the height of the water outlet on the side wall of the waste liquid basin is lower than that of the water inlet.

[0019] Preferably, a needle is provided on the inner wall of the side wall of the waste liquid basin opposite to the water inlet.

[0020] Preferably, a drain pipe is provided at the bottom of the horizontal pipe. A second solenoid valve is installed on the drain pipe. A waste liquid drain pump and a control panel are installed on the side wall of the waste liquid basin. The inlet end of the waste liquid drain pump is communicated with the bottom of the waste liquid basin. A liquid level sensor is installed on the inner wall of the waste liquid basin. The liquid level sensor, the second solenoid valve and the waste liquid drain pump are all electrically connected to the control panel.

[0021] Preferably, the horizontal pipes and the connecting pipe are both made of transparent materials, which is convenient for observing the liquid in the U-shaped pipeline assembly.

[0022] Compared with the related art, the present invention has the following beneficial effects: 1. The present invention can visually display the real-time thrust of the operator's syringe and the liquid flow rate. By detecting and comparing the data of the liquid flow in the pipeline during the operation of experienced personnel and trainees, the mistakes of the trainees can be quickly identified and corrected. The present invention demonstrates the working process of flushing the catheter through the state of the transparent pipeline. For beginners, a feel training device can be used to train the feel, enabling them to master catheter flushing more quickly. The first pressure sensor, the second pressure sensor, and the liquid flow sensor are all connected to a computer via data lines. The computer is equipped with professional data analysis software, which can receive and process the sensor data in real time, generate the thrust data of the operator's real-time operation process, and the curves of liquid pressure and flow rate, quantifying and precisely measuring the existing intravenous catheter flushing technology. When the medical staff pulse-push the syringe, the data analysis software in the computer can detect the instantaneous pressure, flow rate, volume of each push, high-pressure push time, and interval time between each push at the outlet end of the syringe. The data analysis software can plot the curves of real-time flow rate and pressure and store them as templates for comparison with the operation curves of other operators, and score according to the similarity, with relatively good training effects.

[0023] 2. Since the simulated plasma water will coagulate after a period of time, after the teaching is completed, it is necessary to drain the simulated plasma in the blood vessel simulation pipeline and the waste liquid basin. When the teaching work is completed or the simulated plasma needs to be replaced, the second solenoid valve and the waste liquid drainage pump can be opened on the control panel to drain the simulated plasma water in the blood vessel simulation pipeline and the waste liquid basin.

[0024] For cleaning, open the first solenoid valve on the pipeline between the water bladder and the connector, open the first and second solenoid valves on the connecting pipe, and start the cleaning pump. The water inlet end of the cleaning pump is connected to a clean water source. The clean water from the cleaning pump causes the water bladder to expand. The expanded water bladder squeezes the air in the box body, the second one-way valve in the air outlet hole opens, and the third one-way valve in the air inlet hole closes, causing the airbag to expand. At the same time, the water passes through the blood vessel simulation pipeline and is discharged along the drain pipe. After cleaning for a period of time, close the drain pipe, open the first solenoid valve on the pipeline between the connector and the airbag, so that the gas enters the blood vessel simulation pipeline and is discharged along the drain pipe, ensuring that the water is fully discharged, preventing the simulated blood from coagulating in the blood vessel simulation pipeline and affecting the smoothness and transparency of the blood vessel simulation pipeline, facilitating repeated use. Beneficial effects BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention after removing the cleaning assembly; Figure 2 is a top view of the present invention after removing the cleaning assembly; Figure 3 is a schematic diagram of the relative position of the connector of the present invention; Figure 4Schematic structural diagram of the simulated syringe of the present invention; Figure 5 Flow curve graph and pressure curve graph of the syringe operated by the trainer (A) of the present invention.

[0026] Figure 6 Flow curve graph and pressure curve graph of the syringe operated by the trainer (B) of the present invention; Figure 7 Flow curve graph and pressure curve graph of the syringe operated by the trainer (C) of the present invention; Figure 8 Schematic structural diagram of the cleaning assembly of the present invention; Figure 9 Schematic sectional structure diagram of the box body of the present invention.

[0027] Reference numerals in the figure: 1, bottom plate; 2, blood vessel simulation pipeline; 3, simulation circulation pump; 4, first pressure sensor; 5, U-shaped pipeline assembly; 6, first T-shaped three-way valve; 7, inclined three-way valve; 8, overflow assembly; 9, simulation indwelling tube; 10, liquid flow sensor; 11, third T-shaped three-way valve; 12, second pressure sensor; 13, connector; 14, syringe; 15, vertical pipe; 16, second T-shaped three-way valve; 17, overflow pipe; 18, waste liquid basin; 19, tactile training device; 20, simulated syringe; 21, injection sleeve; 22, piston; 23, push rod; 24, flat part; 25, tooth groove; 26, elastic arm; 27, locking tooth; 28, liquid inlet; 29, liquid outlet; 30, one-way valve; 31, water outlet; 32, water inlet; 33, horizontal pipe; 34, connecting pipe; 35, elbow; 36, U-shaped clamp; 37, pipe clamp; 38, needle; 39, drain pipe; 40, second solenoid valve; 41, waste liquid drainage pump; 42, control panel; 43, liquid level sensor; 44, cleaning assembly; 45, cleaning pump; 46, box body; 47, water bag; 48, air bag; 49, second one-way valve; 50, third one-way valve; 51, communicating pipe; 52, first solenoid valve. Detailed implementation manners

[0028] The present invention will be further described below in conjunction with the accompanying drawings and implementation manners.

[0029] Please refer to Figures 1 to 9 An intelligent monitoring syringe flushing teaching and training device has a delicate structural design and comprehensive functions, and mainly includes a bottom plate 1 and a series of components installed on the bottom plate 1. First of all, the blood vessel simulation pipeline 2, as the core part, is firmly installed on the bottom plate 1 and is used to simulate the real blood vessel environment. In order to drive the liquid circulation in the blood vessel simulation pipeline 2, the simulation circulation pump 3 is connected to the blood vessel simulation pipeline 2 through a pipeline to ensure that the liquid can continuously flow in the pipeline.

[0030] On the vascular simulation pipeline 2, a first pressure sensor 4 is carefully installed to monitor the pressure changes inside the pipeline in real time. The vascular simulation pipeline 2 consists of a U-shaped pipeline component 5 and connecting components at both ends. The U-shaped pipeline component 5 includes two horizontally arranged horizontal pipes 33 that are parallel to each other, and a connecting pipe 34 is connected between them through an elbow 35 to form a stable U-shaped structure. This design not only ensures the smoothness of liquid flow but also facilitates observing the liquid state inside the pipeline.

[0031] One end of the simulated indwelling catheter 9 can swing inside the horizontal pipe 33.

[0032] The flow parameters of the simulated circulation pump 3 are calibrated to simulate the physiological flow velocity range of blood flow in human blood vessels.

[0033] Both ends of the U-shaped pipeline component 5 are respectively connected to a first T-shaped three-way valve 6 and an inclined three-way valve 7. The inlet and outlet of the simulated circulation pump 3 are connected to these two three-way valves through pipelines to achieve the cyclic drive of the liquid. At the middle interface of the first T-shaped three-way valve 6, an overflow component 8 is arranged vertically to handle the excess liquid. The overflow component 8 includes a vertical pipe 15 fixed at the three-way valve interface. The top of the vertical pipe 15 is connected to a second T-shaped three-way valve 16. One of its interfaces is open, and liquid can be added through this interface. The other interface is connected to a waste liquid basin 18 through an overflow pipe 17 to ensure that the excess liquid can be discharged smoothly.

[0034] A simulated indwelling catheter 9 is embedded and installed at one interface of the inclined three-way valve 7. The indwelling catheter extends into the U-shaped pipeline component 5 to simulate the real usage scenario. One end of the simulated indwelling catheter 9 is connected to a liquid flow sensor 10 through a pipeline to accurately monitor the liquid flow rate. The other end of the liquid flow sensor 10 is connected to a third T-shaped three-way valve 11. One interface of this three-way valve is connected to a second pressure sensor 12 through a pipeline to monitor the thrust when the operator pushes the liquid; the other interface is installed with a connector 13 through a pipeline for connecting a syringe 14 (when the amount injected by the syringe 14 is excessive and the delivery volume of the simulated circulation pump 3 is limited, the liquid will be discharged into the waste liquid basin 18 along the overflow pipe 17).

[0035] The simulated indwelling catheter 9, pipelines, syringe 14, and overflow pipe 17 can select products from different manufacturers currently used in existing hospitals.

[0036] It is worth mentioning that the first pressure sensor 4, the second pressure sensor 12, and the liquid flow sensor 10 are all connected to a computer through data lines. The data analysis software installed in the computer can generate the thrust, pressure, and flow velocity curves of the operator in real time (such as Figures 5 - 7 ) and compare the similarity with the standard curve to quantitatively evaluate the operation level.

[0037] The data analysis software in the computer can detect the instantaneous pressure, flow rate, volume per push, high-pressure propulsion time, and interval time between each push of the liquid at the outlet end of the syringe. The data analysis software can plot and store the real-time flow rate and pressure curves as templates for comparison with the operation curves of other operators, and score according to the similarity, with relatively good training effects. The real-time flow rate and pressure curves are plotted and stored as templates for comparison with the operation curves of other operators, and scored according to the similarity, with relatively good training effects.

[0038] In addition, the device further includes a hand feeling training device 19 for improving the hand feeling of the operator. The hand feeling training device 19 consists of a simulated syringe 20 placed on the bottom plate 1, which includes an injection sleeve 21 and a piston 22. A push rod 23 is embedded and installed on one side of the piston 22 for easy pushing and pulling by the operator. A flat portion 24 and a tooth groove 25 are provided on the outer side wall of the injection sleeve 21, and an elastic arm 26 and a locking tooth 27 are fixed to the end of the push rod 23. When pushing and pulling the push rod 23, the locking tooth 27 is intermittently engaged with the tooth groove 25 to simulate the feeling of pulsed tube flushing and feedback a corresponding pause feeling to the palm.

[0039] One-way valves 30 are installed at both the liquid inlet 28 and the liquid outlet 29 of the simulated syringe 20 to ensure that the liquid can only flow in one direction. The liquid inlet 28 and the liquid outlet 29 are respectively connected to the water outlet 31 and the water inlet 32 of the waste liquid basin 18 through water pipes to form a liquid circulation. The height of the water outlet 31 on the side wall of the waste liquid basin 18 is lower than that of the water inlet 32, and a needle 38 is provided on the inner wall of the side wall opposite to the water inlet 32 for facilitating the observation of the pulsed entry and extraction of the liquid.

[0040] To enhance the stability and practicality of the device, several U-shaped card seats 36 are also fixed on the top of the bottom plate 1 for fixing the horizontal pipe 33. At the same time, one end of one horizontal pipe 33 is connected to the first T-shaped three-way valve 6 through a pipe clamp 37, and the other end of the other horizontal pipe 33 is connected to one interface of the inclined three-way valve 7 to ensure the firmness and stability of the connection.

[0041] A drain pipe 39 is provided at the bottom of the horizontal pipe 33, a second solenoid valve 40 is installed on the drain pipe 39, a waste liquid drain pump 41 and a control panel 42 are installed on the side wall of the waste liquid basin 18, the water inlet end of the waste liquid drain pump 41 is connected to the bottom of the waste liquid basin 18, a liquid level sensor 43 is installed on the inner wall of the waste liquid basin 18, and the liquid level sensor 43, the second solenoid valve 40, and the waste liquid drain pump 41 are all electrically connected to the control panel 42.

[0042] When the liquid level sensor 43 detects that the liquid level in the waste liquid basin 18 reaches a certain height, the liquid level sensor 43 transmits a signal to the controller in the control panel 42, and the controller controls the waste liquid drain pump 41 to open to drain the liquid. When the teaching work is completed or the simulated plasma needs to be replaced, the second solenoid valve 40 and the waste liquid drain pump 41 can be opened on the control panel 42 to drain the simulated plasma water in the blood vessel simulation pipeline 2 and the waste liquid basin 18.

[0043] A cleaning component 44 is installed on the top of the bottom plate 1. The cleaning component 44 includes a cleaning pump 45 and a box body 46 fixed on the top of the bottom plate 1. A water bag 47 is arranged in the box body 46. An air outlet hole and an air inlet hole are respectively arranged on the top and the side wall of the box body 46. The air outlet hole is communicated with the air inlet end of an air bag 48 on the top of the box body 46. A second one-way valve 49 is installed in the air outlet hole, and a third one-way valve 50 is installed in the air inlet hole. The water outlet end of the cleaning pump 45 is communicated with the water inlet end of the water bag 47 through a pipeline. The water outlet end of the water bag 47 is communicated with the connector 13 through a pipeline. The air outlet end of the air bag 48 is communicated with the connector 13 through a pipeline. A communicating pipe 51 is connected between the inlet and the outlet of the simulated circulation pump 3. First solenoid valves 52 are installed on the pipelines between the connector 13 and the water bag 47 and the air bag 48 and on the communicating pipe 51.

[0044] After use, open the first solenoid valve 52 on the pipeline between the water bag 47 and the connector 13, the first solenoid valve 52 on the communicating pipe 51 and the second solenoid valve 40, and start the cleaning pump 45. The water inlet end of the cleaning pump 45 is connected to a clean water source. The clean water from the cleaning pump 45 causes the water bag 47 to expand. The expanded water bag 47 squeezes the air in the box body 46. The second one-way valve 49 in the air outlet hole opens, and the third one-way valve 50 in the air inlet hole closes, causing the air bag 48 to expand. At the same time, the water passes through the blood vessel simulation pipeline 2 and is discharged along the drain pipe 39. After cleaning for a period of time, close the drain pipe 39, open the first solenoid valve 52 on the pipeline between the connector 13 and the air bag 48, and let the gas enter the blood vessel simulation pipeline 2 and be discharged along the drain pipe 39, so that the water is fully discharged, preventing the simulated blood from solidifying in the blood vessel simulation pipeline 2 and affecting the smoothness and transparency of the blood vessel simulation pipeline 2, which is convenient for repeated use.

[0045] In summary, this intelligent monitoring syringe flushing teaching and training device not only has comprehensive functions and delicate design, but also can monitor and feedback the operation process of the operator in real time, providing strong support and guarantee for teaching and training.

[0046] Working principle: The syringe 14 is filled with liquid, and the syringe 14 is connected to the connector 13. First, push the handle of the syringe 14 in a pulsed manner, that is, intermittently pause and squeeze the handle of the syringe 14 (so that the liquid enters the U-shaped pipeline assembly 5 in a pulsed manner), and push the handle with positive pressure for the last section of the distance.

[0047] The liquid in the waste liquid basin 18 is drawn into the injection sleeve 21 along the water outlet 31 through the simulation syringe 20. By squeezing the push rod 23, under the action of the piston 22, the liquid enters the waste liquid basin 18 along the liquid outlet 29 and the liquid inlet 28, and the liquid circulation is carried out. While the liquid is discharged along the liquid outlet 29, the teeth 27 at the end of the elastic arm 26 are intermittently engaged with the tooth groove 25, feeding back to the palm to make corresponding pauses, simulating pulse flushing of the tube. When the feel is achieved after simulating for a period of time, more precise training can be carried out through the syringe 14.

[0048] Deduction items: 1. Without pauses (such as Figure 5 ).

[0049] 2. Deduction item: Without pressure relief and overpressure for a long time (such as Figure 6 ).

[0050] 3. Deduction item: Intermediate pauses.

[0051] 4. Deduction item: Number of overpressure times.

[0052] 5. Deduction item: The number of propulsion times does not meet the requirements.

[0053] 6. Deduction item: The total propulsion time does not meet the requirements.

[0054] 7. Deduction item: The dosage of each propulsion is not uniform.

[0055] 8. Deduction item: The pause time or propulsion time for each time is not uniform.

[0056] 9. Deduction item: The ratio of the pause time to the propulsion time for each time does not meet the requirements.

[0057] Figure 7 Is a qualified curve graph.

[0058] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A pulse tube flushing teaching and training device with intelligent monitoring, characterized in that, It includes a bottom plate (1), a blood vessel simulation pipeline (2) installed on the bottom plate (1), and a simulation circulation pump (3) installed on the blood vessel simulation pipeline (2) for driving the liquid circulation in the blood vessel simulation pipeline (2). A first pressure sensor (4) is installed on the blood vessel simulation pipeline (2). The blood vessel simulation pipeline (2) includes a U-shaped pipeline assembly (5), a first T-shaped three-way valve (6) and an inclined three-way valve (7) installed at both ends of the U-shaped pipeline assembly (5). The inlet and outlet of the simulation circulation pump (3) are respectively connected to the first T-shaped three-way valve (6) and the inclined three-way valve (7) through pipelines. An overflow assembly (8) arranged vertically is installed at the middle interface of the first T-shaped three-way valve (6). A simulation indwelling tube (9) is embedded at one interface of the inclined three-way valve (7), and the simulation indwelling tube (9) is embedded in the U-shaped pipeline assembly (5). One end of the simulation indwelling tube (9) is connected to a liquid flow sensor (10) through a pipeline. A third T-shaped three-way valve (11) is installed at one end of the liquid flow sensor (10). A second pressure sensor (12) is connected to one interface of the third T-shaped three-way valve (11) through a pipeline. A connector (13) is installed at the other interface of the third T-shaped three-way valve (11) through a pipeline. A syringe (14) is installed at the connector (13). A cleaning assembly (44) is installed on the top of the bottom plate (1). The cleaning assembly (44) includes a cleaning pump (45) and a box body (46) fixed on the top of the bottom plate (1). A water bag (47) is arranged in the box body (46). An air outlet and an air inlet are respectively arranged on the top and the side wall of the box body (46). The air outlet is communicated with the air inlet end of an air bag (48) on the top of the box body (46). A second one-way valve (49) is installed in the air outlet. A third one-way valve (50) is installed in the air inlet. The water outlet end of the cleaning pump (45) is communicated with the water inlet end of the water bag (47) through a pipeline. The water outlet end of the water bag (47) is communicated with the connector (13) through a pipeline. The air outlet end of the air bag (48) is communicated with the connector (13) through a pipeline. The inlet and outlet of the simulation circulation pump (3) are connected through a communicating pipe (51). First solenoid valves (52) are installed on the pipelines between the connector (13) and the water bag (47) and the air bag (48) and on the communicating pipe (51).

2. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 1, wherein The overflow assembly (8) includes a vertical pipe (15) fixed at the interface of the first T-shaped three-way valve (6). A second T-shaped three-way valve (16) is installed at the top end of the vertical pipe (15). One end interface of the second T-shaped three-way valve (16) far from the vertical pipe (15) is in an open state. An overflow pipe (17) is installed at the middle interface of the second T-shaped three-way valve (16). A waste liquid basin (18) is installed on the top of the bottom plate (1). One end of the overflow pipe (17) far from the second T-shaped three-way valve (16) is embedded in the waste liquid basin (18).

3. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 2, wherein It further includes a hand feeling training device (19). The hand feeling training device (19) includes a simulated syringe (20) placed on the bottom plate (1). The simulated syringe (20) includes an injection sleeve (21) and a piston (22) installed inside the injection sleeve (21). One side of the piston (22) is embedded with a push rod (23). One end of the push rod (23) is arranged outside the injection sleeve (21). A flat portion (24) is provided on the outer side wall of the injection sleeve (21). A plurality of tooth grooves (25) are provided on the flat portion (24). An elastic arm (26) is fixed at the end of the push rod (23). A locking tooth (27) is provided at the end of the elastic arm (26), and the locking tooth (27) cooperates with the tooth groove (25). An inlet (28) and an outlet (29) are provided at the end of the injection sleeve (21). One-way valves (30) are installed at both the inlet (28) and the outlet (29). The inlet (28) and the outlet (29) are respectively communicated with the water outlet (31) and the water inlet (32) on the side wall of the waste liquid basin (18) through water pipes.

4. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 3, characterized in that, The U-shaped pipeline assembly (5) includes two horizontally arranged horizontal pipes (33) arranged in parallel. A connecting pipe (34) is provided between the two horizontal pipes (33), and the connecting pipe (34) is connected to the horizontal pipe (33) through an elbow (35).

5. The pulse flushing teaching and training device capable of intelligent monitoring according to claim 4, characterized in that, A plurality of U-shaped card seats (36) are fixed on the top of the bottom plate (1), and the horizontal pipe (33) is arranged inside the U-shaped card seat (36).

6. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 4, characterized in that, One end of one of the horizontal pipes (33) is communicated with the first T-shaped three-way valve (6) through a pipe clamp (37), and the end of the other horizontal pipe (33) is communicated with one interface of the inclined three-way valve (7).

7. A pulse flushing teaching and training device capable of intelligent monitoring according to claim 1, characterized in that, The height of the water outlet (31) on the side wall of the waste liquid basin (18) is lower than that of the water inlet (32).

8. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 7, wherein A needle (38) is provided on the inner wall of the side wall of the waste liquid basin (18) opposite to the water inlet (32).

9. The intelligent monitoring pulse type catheter flushing teaching and training device according to claim 4, wherein A drain pipe (39) is provided at the bottom of the horizontal pipe (33). A second solenoid valve (40) is installed on the drain pipe (39). A waste liquid drain pump (41) and a control panel (42) are installed on the side wall of the waste liquid basin (18). The water inlet end of the waste liquid drain pump (41) is communicated with the bottom of the waste liquid basin (18). A liquid level sensor (43) is installed on the inner wall of the waste liquid basin (18). The liquid level sensor (43), the second solenoid valve (40) and the waste liquid drain pump (41) are all electrically connected to the control panel (42).

10. The intelligent monitoring pulse type tube flushing teaching and training device according to claim 4, characterized in that, The horizontal pipe (33) and the connecting pipe (34) are both made of transparent materials, which is convenient for observing the liquid in the U-shaped pipeline assembly (5).

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