Infusion bag liquid pressurizing and discharging equipment

Abstract

The invention relates to the technical field of medical instruments, and discloses infusion bag liquid pressurizing and discharging equipment which comprises an infusion rod, a bottle hanging hook is fixedly connected to the top of the infusion rod, a weighing type hanging belt is movably connected to the bottle hanging hook, a pressurizing bag is fixedly connected to the bottom of the weighing type hanging belt, and an air bag and an infusion bag are movably connected into the pressurizing bag. The bottom of the pressurizing bag is fixedly connected with a breather pipe, the bottom of the breather pipe is fixedly connected with a control kit, the bottom of the infusion bag is fixedly connected with an infusion tube, the infusion tube is movably connected with a regulating valve and an ultrasonic detector, and a control system is arranged in the control kit. Comprising a physiological data receiving and processing module, a multi-scene adaptation control module, a pressure-flow rate coordinated regulation module, a safety closed-loop management and control module and a man-machine interaction module, according to the device, the physiological data of the patient is associated with the flow velocity through the control system, and the flow velocity of the liquid medicine is adjusted in real time, so that the safety and accuracy of vascular intervention scene medical treatment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a device for pressurizing and discharging liquid from an infusion bag. Background Art

[0002] The infusion bag liquid pressurized discharge device applies controllable pressure to the infusion bag, which can speed up the infusion speed to meet emergency or surgical needs, solve the flow rate problems caused by high vascular resistance, high liquid viscosity, and increased pipeline resistance, ensure that the liquid in the bag is completely discharged to ensure accurate dosage, and maintain stable infusion in special body positions or mobile medical scenarios. At the same time, it ensures safety through pressure regulation and monitoring. It is an important auxiliary tool in clinical practice to break through the limitations of gravity infusion and achieve fast and stable infusion.

[0003] Publication No. CN217067255U discloses an infusion pressurizing device, relating to the field of infusion auxiliary devices. A pressurizing infusion device with the function of vertically securing a Murphy's dropper is provided. The pressurizing infusion device comprises a device body, a dropper securing structure, and a pipeline guiding structure. The dropper securing structure is vertically arranged and connected to the device body, and is capable of vertically securing the Murphy's dropper of an infusion set. Two pipeline guiding structures are respectively connected to the upper and lower ends of the dropper securing structure. The pipeline guiding structures are capable of guiding the infusion tube of the infusion set, allowing the tube to smoothly bend from a vertical position to a horizontal position, thereby preventing excessive bending of the tube. This device is used in conjunction with existing infusion pressurizing bags, liquid bags, and infusion sets, allowing infusions to be performed without the liquid bag being hung high. The Murphy's dropper can be maintained in a vertical position, facilitating observation and control of the infusion rate and allowing air to be expelled from the tube.

[0004] Existing devices have obvious shortcomings during the infusion process: First, existing devices generally rely on manual, static adjustment and lack dynamic adaptive capabilities based on real-time multi-dimensional physiological parameters, resulting in delayed adjustment, large errors and inability to accurately respond to changes in individual vascular compliance; second, they can only passively respond to indicator fluctuations that have already occurred and cannot intervene in advance. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an infusion bag liquid pressurization discharge device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a device for pressurizing and discharging liquid from an infusion bag, comprising an infusion pole, the top of the infusion pole being fixedly connected to a hanging bottle hook, the hanging bottle hook being movably connected to a weighing sling, the bottom of the weighing sling being fixedly connected to a pressurizing bag, the interior of the pressurizing bag being movably connected to an air bag and an infusion bag, the bottom of the pressurizing bag being fixedly connected to a venting tube, the bottom of the venting tube being fixedly connected to a control kit, the bottom of the infusion bag being fixedly connected to an infusion tube, the infusion tube being movably connected to a regulating valve and an ultrasonic detector; The control suite is internally provided with a control system, including a physiological data receiving and processing module, a multi-scenario adaptation control module, a pressure-flow rate coordinated adjustment module, a safety closed-loop control module, and a human-computer interaction module; The physiological data receiving and processing module is used to receive multi-dimensional physiological parameters of the patient in the patient monitor in the scenarios of intra-arterial infusion, arterial blood pressure monitoring and central venous pressure monitoring; The multi-scenario adaptation control module automatically switches the control mode according to the input data type and monitoring target, and the control mode includes arterial hypertension infusion mode, arterial pressure precision monitoring mode and central venous pressure dynamic calibration mode; The pressure-flow rate coordinated regulation module constructs a pressure-flow rate-vascular compliance correlation model based on real-time vascular parameters to achieve adaptive regulation of pressure and flow rate; The safety closed-loop control module uses the preset vascular safety threshold range to determine if the real-time monitoring data exceeds the limit, triggering a graded warning mechanism and executing emergency intervention operations; The human-computer interaction module includes an LED display screen, an alarm indicator light and an operation panel, which are used to realize information interaction between medical staff and the system, including parameter display, status prompts, alarm warnings and command input.

[0007] Furthermore, a tray is fixedly connected to the infusion pole, and the control kit is installed on the tray. A three-way safety valve is fixedly connected to the ventilation tube, and the three-way safety valve is used to adjust the ventilation volume of the ventilation tube. A cover plate is rotatably connected to the pressurizing bag, and a connecting component is provided on the pressurizing bag and the cover plate. A movable wheel is fixedly connected to the bottom of the infusion pole.

[0008] Furthermore, the regulating valve includes a shell, a fixed knob is threadedly connected to the shell, a spring damper is fixedly connected to the side of the fixed knob, an elastic plate is fixedly connected to the side of the spring damper, an elastic block is provided at the other end of the infusion tube, a threaded connecting rod is threadedly connected to the elastic block, and the threaded connecting rod is driven by a motor.

[0009] Furthermore, the control kit includes a shell, and a main control unit, an air pump, an indicator light control panel and a power supply are arranged inside the shell. The side of the air pump is fixedly connected to the ventilation pipe, and a pressure sensor is fixedly connected to the ventilation pipe.

[0010] Furthermore, the patient's multidimensional physiological parameters include invasive arterial pressure, central venous pressure and heart rate, and the physiological data receiving and processing module includes a data processing unit and a prediction unit; The data processing unit receives and processes real-time physiological data in the scenarios of intra-arterial infusion, invasive arterial blood pressure monitoring, and central venous pressure monitoring, and determines the current flow rate of the drug solution in combination with the drug solution properties and the parameters defined by the doctor; The prediction unit predicts subsequent physiological parameter changes based on the current physiological state, identifies potential dangers in advance and generates pre-adjustment suggestions for reducing the flow rate.

[0011] Furthermore, the multi-scenario adaptation control module is provided with a scenario decision unit and a parameter configuration unit; The scene decision unit determines the scene type through input data and pushes the determination result to the system status area of ​​the human-computer interaction module for display; The parameter configuration unit loads a preset parameter set according to the scenario type and displays the current parameter configuration in the key numerical indicator area of ​​the human-computer interaction module, including pressure regulation accuracy, sampling frequency and safety threshold range.

[0012] Furthermore, the pressure-flow rate coordinated regulation module dynamically calculates the target infusion pressure in the arterial hypertension infusion mode, and displays the calculation process and results in real time in the historical data area of ​​the human-computer interaction module.

[0013] Furthermore, the safety closed-loop control module includes a data fusion monitoring subunit, a safety threshold management subunit, a graded warning decision subunit and an emergency intervention execution subunit, to achieve full-process safety control of physiological parameters, pressure and flow rate.

[0014] Beneficial effects: 1. The infusion bag liquid pressurization and discharge device is equipped with a control system. The physiological data receiving and processing module receives the patient's multi-dimensional physiological parameters in real time. Combined with the "pressure-flow rate-vascular compliance correlation model" constructed by the pressure-flow rate collaborative adjustment module, it realizes adaptive adjustment of pressure and flow rate, avoiding the lag and error of manual adjustment.

[0015] 2. The prediction unit of this infusion bag liquid pressurization and discharge device uses the GRU network to predict changes in physiological parameters within the next three minutes based on the physiological data, liquid properties and patient characteristics of the past five minutes, adjust the flow rate in advance, and reduce the risk of fluctuations in physiological indicators.

[0016] 3. The infusion bag liquid pressurization discharge equipment has a preset safety threshold range in the safety closed-loop control module. By real-time monitoring of data exceeding the limit, it triggers graded warnings and performs corresponding interventions to quickly respond to potential dangers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an infusion bag liquid pressurization and discharge device proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a regulating valve of a liquid pressurizing and discharging device for an infusion bag proposed by the present invention; Figure 3 This is a schematic diagram of the control kit structure of an infusion bag liquid pressurization and discharge device proposed by the present invention; Figure 4 This is a schematic diagram of the control system module structure of an infusion bag liquid pressurized discharge device proposed by the present invention; Figure 5 This is a control principle diagram of the infusion bag liquid pressurization discharge device proposed by the present invention.

[0018] Among them: 1. Infusion pole; 2. Tray; 3. Air bag; 4. Connecting assembly; 5. Pressurized bag; 6. Weighing sling; 7. Infusion bag; 8. Cover; 9. Regulating valve; 901. Housing; 902. Fixing knob; 903. Elastic plate; 904. Spring damper; 905. Elastic block; 906. Threaded connecting rod; 10. Three-way safety valve; 11. Control kit; 1101. Housing; 1102. Main control unit; 1103. Air pump; 1104. Pressure sensor; 1105. Indicator light control panel; 1106. Power supply; 12. Infusion tube; 13. Movable wheel; 14. Ventilation tube; 15. Ultrasonic detector. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1 See also Figure 1-Figure 4, a device for pressurizing and discharging liquid from an infusion bag, comprising an infusion pole 1, the top of the infusion pole 1 being fixedly connected to a hanging bottle hook, the hanging bottle hook being movably connected to a weighing sling 6, the bottom of the weighing sling 6 being fixedly connected to a pressurizing bag 5, the interior of the pressurizing bag 5 being movably connected to an air bag 3 and an infusion bag 7, the bottom of the pressurizing bag 5 being fixedly connected to a vent tube 14, the bottom of the vent tube 14 being fixedly connected to a control kit 11, the bottom of the infusion bag 7 being fixedly connected to an infusion tube 12, the infusion tube 12 being movably connected to a regulating valve 9 and an ultrasonic detector 15; The control kit 11 is internally provided with a control system, including a physiological data receiving and processing module, a multi-scenario adaptation control module, a pressure-flow rate coordinated adjustment module, a safety closed-loop control module and a human-computer interaction module.

[0021] The physiological data receiving and processing module is used to receive the patient's multi-dimensional physiological parameters in the monitor under the scenarios of intra-arterial infusion, arterial blood pressure monitoring and central venous pressure monitoring; The multi-scenario adaptive control module automatically switches control modes according to the input data type and monitoring target. The control modes include arterial hypertension infusion mode, arterial pressure precision monitoring mode and central venous pressure dynamic calibration mode. The pressure-flow rate coordinated regulation module builds a pressure-flow rate-vascular compliance correlation model based on real-time vascular parameters to achieve adaptive regulation of pressure and flow rate; The safety closed-loop control module uses the preset vascular safety threshold range to determine if the real-time monitoring data exceeds the limit, triggering a graded warning mechanism and executing emergency intervention operations; The human-computer interaction module includes an LED display, an alarm indicator light and an operation panel, which are used to realize information interaction between medical staff and the system, including parameter display, status prompts, alarm warnings and command input.

[0022] What needs to be specifically explained in this embodiment is that the control system can automatically adjust the infusion speed according to the patient's current physiological state during infusion, and at the same time predict the patient's physiological state in the next 3 minutes based on the change trend, and adjust the flow rate in advance, which is safer.

[0023] Example 2 See also Figure 1-Figure 3 A tray 2 is fixedly connected to the infusion pole 1, a control kit 11 is installed on the tray 2, a three-way safety valve 10 is fixedly connected to the ventilation tube 14, the three-way safety valve 10 is used to adjust the ventilation volume of the ventilation tube 14, a cover plate 8 is rotatably connected to the pressurizing bag 5, and a connecting component 4 is provided on the pressurizing bag 5 and the cover plate 8, and a movable wheel 13 is fixedly connected to the bottom of the infusion pole 1.

[0024] The regulating valve 9 includes a housing 901, a fixed knob 902 is threadedly connected to the housing 901, a spring damper 904 is fixedly connected to the side of the fixed knob 902, an elastic plate 903 is fixedly connected to the side of the spring damper 904, an elastic block 905 is provided at the other end of the infusion tube 12, a threaded connecting rod 906 is threadedly connected to the elastic block 905, and the threaded connecting rod 906 is driven by a motor.

[0025] The control kit 11 includes a shell 1101, inside which are provided a main control unit 1102, an air pump 1103, an indicator light control panel 1105 and a power supply 1106. The side of the air pump 1103 is fixedly connected to the ventilation pipe 14, and a pressure sensor 1104 is fixedly connected to the ventilation pipe 14.

[0026] What needs to be specifically explained in this embodiment is: before use, the shell 901 passes through the port of the infusion tube 12 and is brought to the specified position. The fixing knob 902 is screwed in the direction of the elastic block 905, and the fixing knob 902 drives the spring damper 904 and the elastic plate 903 to move inward, clamping the infusion tube 12 and completing the fixation of the regulating valve 9. When in use, the motor drives the threaded connecting rod 906 to rotate, and the threaded connecting rod 906 drives the elastic block 905 to move, applying pressure to the infusion tube 12, thereby reducing the flow rate of the liquid inside the infusion tube 12. The infusion can also be manually reduced and stopped by rotating the fixing knob 902. The ultrasonic detector 15 set below the regulating valve 9 calculates the liquid flow rate by the time difference between the upstream and downstream.

[0027] Example 3 See also Figure 4-Figure 5 ,The patient’s multidimensional physiological parameters include invasive arterial pressure, central venous pressure and heart rate, and the physiological data receiving and processing module includes a data processing unit and a prediction unit; The data processing unit receives and processes real-time physiological data from intra-arterial infusion, invasive arterial blood pressure monitoring, and central venous pressure monitoring scenarios, and determines the current flow rate of the drug solution based on the drug solution properties and the parameters defined by the doctor; In this embodiment, it should be specifically explained that the data processing unit receives invasive arterial pressure (systolic pressure SBP, diastolic pressure DBP, mean arterial pressure MAP), central venous pressure (CVP), heart rate (HR), liquid properties (viscosity μ, osmotic pressure π), doctor-defined parameters (maximum flow rate), and other parameters. , minimum flow rate ), so as to calculate the flow rate, basic flow rate , combined with physiological correction factors ( basal mean arterial pressure, is the basic heart rate, is the basal central venous pressure, 、 and The value is the average value of normal people) and the correction factor of the liquid , final flow rate , and satisfies .

[0028] The prediction unit predicts subsequent changes in physiological parameters based on the current physiological state, identifies potential dangers in advance and generates pre-adjustment suggestions to reduce the flow rate.

[0029] The data source of the prediction unit is the invasive arterial pressure sequence of the past 5 minutes , central venous pressure sequence , heart rate sequence , current flow rate , Current airbag pressure , Viscosity of the drug solution , the patient's age and weight ; After data standardization, Invasive arterial pressure: , Central venous pressure: , Heart rate: (in and are the mean and standard deviation of MAP for the same type of patients, and the same applies to other parameters); Flow rate: (mapped to the 0-1 range, 、 The value is limited by the doctor); Airbag pressure: ( As the basic pressure, is the upper limit of safety pressure); age: (mapped to a 0-1 range, with 40 being the adult baseline and 60 being the age span); weight: (50kg is the benchmark, 100kg is the maximum reference value); Drug viscosity: (Based on the viscosity of water 1mPa·s); Construct a dynamic feature vector X based on standardized data to capture the temporal variation trend and interactive relationship of physiological parameters: ABP change rate: , CVP change rate: , HR rate of change: , ABP fluctuation characteristics: , Co-fluctuation of physiological parameters: , Pressure-velocity coupling coefficient: , Liquid-Flow Rate Influencing Factors: , Flow rate change trend: , And patient characteristics: 、 、 (age-weight interaction term), (interaction term between body weight and medication solution); Input the feature vector X into the GRU network and output the predicted value through the fully connected layer: ; ; ; in, is the hidden state, W is the weight matrix, and b is the bias term.

[0030] The predicted value is then added to the physiological correction factor to obtain , the predicted flow rate is .

[0031] The multi-scenario adaptation control module is provided with a scenario decision unit and a parameter configuration unit; In this embodiment, it is necessary to specifically explain that: the scene decision unit determines the scene type through input data, and when the monitoring data contains " "Parameters, and the waveform characteristics meet (ABP contraction slope is steep), (slow diastolic decay), it is initially determined to be an artery-related scene. When the monitoring data contains " "Parameters, and the waveform characteristics meet (the amplitude of a wave is close to that of v wave), (obvious respiratory fluctuations), it is preliminarily determined to be a venous scene, and the judgment result is pushed to the system status area of ​​the human-computer interaction module for display; The parameter configuration unit loads the preset parameter set according to the scenario type and displays the current parameter configuration in the key numerical indicator area of ​​the human-computer interaction module, including pressure regulation accuracy, sampling frequency and safety threshold range.

[0032] In the arterial hypertension infusion mode, the pressure-flow rate coordinated regulation module dynamically calculates the target infusion pressure and displays the calculation process and results in real time in the historical data area of ​​the human-computer interaction module.

[0033] In this embodiment, it should be specifically explained that: the pressure-flow rate coordinated adjustment module sets the target flow rate Convert to target cuff pressure , the conversion formula is ,in 、 、 is the empirical coefficient, is the viscosity of the drug solution.

[0034] The safety closed-loop control module includes a data fusion monitoring sub-unit, a safety threshold management sub-unit, a graded warning decision-making sub-unit, and an emergency intervention execution sub-unit, to achieve full-process safety control of physiological parameters, pressure, and flow rate.

[0035] In this embodiment, it should be specifically explained that the safety closed-loop control module constructs a three-level threshold library by inputting data including invasive arterial pressure (systolic pressure SBP (t), diastolic pressure DBP (t), mean arterial pressure MAP (t)), central venous pressure CVP (t), and heart rate HR(t) (ABP sampling frequency 100Hz, other sampling frequencies 1Hz): Normal threshold (T1): SBP∈[90, 140] mmHg, DBP∈[60, 90] mmHg, MAP∈[70, 105] mmHg, CVP∈[5, 15] cmH2O; Warning threshold (T2): T2 = T1 × (1 ± 20%), such as SBP∈[72, 168] mmHg; Danger threshold (T3): T3 = T1×(1±40%), such as SBP∈[54, 196] mmHg.

[0036] Among them, SBP weight is 0.3, DBP weight is 0.2, MAP weight is 0.2, CVP weight is 0.1, V weight is 0.1, and P weight is 0.1; Weighted total score , mapped into three levels of warning: Level 1 warning (yellow): 0.3≤S<0.5; Level 2 warning (orange): 0.5≤S<0.8; Level 3 warning (red): S≥0.8.

[0037] Level 1 warning (yellow) intervention: Equipment adjustment: Reduce the flow rate by 8%, that is, Vadj=V(t)×0.92, and simultaneously adjust the airbag pressure to control the ABP fluctuation within ±5mmHg. At the same time, the human-computer interaction module displays a yellow pop-up window, prompting "SBP is slightly low (85mmHg), the flow rate has been fine-tuned."

[0038] Level 2 warning (orange) intervention: suspend pressurization and reduce the flow rate to 70% of the current value, that is, Vadj=V(t)×0.7. The airbag pressure remains stable, and intermittent beeps sound. The human-computer interaction module flashes orange and displays the ABP trend graph.

[0039] Level 3 warning (red) intervention: The airbag pressure drops to a safe value Psafe = 0.3 × MAP(t) at a rate of 3 kPa / s, the infusion valve is closed, and a continuous sound and light alarm is triggered. An emergency alarm and ABP waveform segment are pushed to the doctor's terminal.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for pressurizing and discharging liquid from an infusion bag, comprising an infusion rod (1), characterized in that: The top of the infusion pole (1) is fixedly connected to a hanging bottle hook, the hanging bottle hook is movably connected to a weighing sling (6), the bottom of the weighing sling (6) is fixedly connected to a pressurizing bag (5), the inside of the pressurizing bag (5) is movably connected to an air bag (3) and an infusion bag (7), the bottom of the pressurizing bag (5) is fixedly connected to a ventilating tube (14), the bottom of the ventilating tube (14) is fixedly connected to a control kit (11), the bottom of the infusion bag (7) is fixedly connected to an infusion tube (12), and the infusion tube (12) is movably connected to a regulating valve (9) and an ultrasonic detector (15); The control kit (11) is internally provided with a control system, including a physiological data receiving and processing module, a multi-scenario adaptation control module, a pressure-flow rate coordinated regulation module, a safety closed-loop control module, and a human-computer interaction module; The physiological data receiving and processing module is used to receive multi-dimensional physiological parameters of the patient in the patient monitor in the scenarios of intra-arterial infusion, arterial blood pressure monitoring and central venous pressure monitoring; The multi-scenario adaptation control module automatically switches the control mode according to the input data type and monitoring target. The control modes include arterial hypertension infusion mode, arterial pressure precision monitoring mode and central venous pressure dynamic calibration mode; The pressure-flow rate coordinated regulation module constructs a pressure-flow rate-vascular compliance correlation model based on real-time vascular parameters to achieve adaptive regulation of pressure and flow rate; The safety closed-loop control module uses the preset vascular safety threshold range to determine if the real-time monitoring data exceeds the limit, triggering a graded warning mechanism and executing emergency intervention operations; The human-computer interaction module includes an LED display screen, an alarm indicator light and an operation panel, which are used to realize information interaction between medical staff and the system, including parameter display, status prompts, alarm warnings and command input.

2. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: The infusion pole (1) is fixedly connected to a tray (2), a control kit (11) is mounted on the tray (2), a three-way safety valve (10) is fixedly connected to the ventilation tube (14), and the three-way safety valve (10) is used to adjust the ventilation volume of the ventilation tube (14), a cover plate (8) is rotatably connected to the pressurizing bag (5), and a connecting assembly (4) is provided on both the pressurizing bag (5) and the cover plate (8), and a movable wheel (13) is fixedly connected to the bottom of the infusion pole (1).

3. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: The regulating valve (9) comprises a housing (901), a fixed knob (902) being threadedly connected to the housing (901), a spring damper (904) being fixedly connected to the side of the fixed knob (902), an elastic plate (903) being fixedly connected to the side of the spring damper (904), an elastic block (905) being provided at the other end of the infusion tube (12), a threaded connecting rod (906) being threadedly connected to the elastic block (905), and the threaded connecting rod (906) being driven by a motor.

4. The infusion bag liquid pressurized discharge device according to claim 2, characterized in that: The control kit (11) comprises a housing (1101), wherein a main control unit (1102), an air pump (1103), an indicator light control panel (1105) and a power supply (1106) are arranged inside the housing (1101), and the side of the air pump (1103) is fixedly connected to the ventilation tube (14), and a pressure sensor (1104) is fixedly connected to the ventilation tube (14).

5. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: The patient's multidimensional physiological parameters include invasive arterial pressure, central venous pressure and heart rate, and the physiological data receiving and processing module includes a data processing unit and a prediction unit; The data processing unit receives and processes real-time physiological data in the scenarios of intra-arterial infusion, invasive arterial blood pressure monitoring, and central venous pressure monitoring, and determines the current flow rate of the drug solution in combination with the drug solution properties and the parameters defined by the doctor; The prediction unit predicts subsequent physiological parameter changes based on the current physiological state, identifies potential dangers in advance and generates pre-adjustment suggestions for reducing the flow rate.

6. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: The multi-scenario adaptation control module is provided with a scenario decision unit and a parameter configuration unit; The scene decision unit determines the scene type through input data and pushes the determination result to the system status area of ​​the human-computer interaction module for display; The parameter configuration unit loads a preset parameter set according to the scenario type and displays the current parameter configuration in the key numerical indicator area of ​​the human-computer interaction module, including pressure regulation accuracy, sampling frequency and safety threshold range.

7. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: In the arterial hypertension infusion mode, the pressure-flow rate coordinated regulation module dynamically calculates the target infusion pressure and displays the calculation process and results in real time in the historical data area of ​​the human-computer interaction module.

8. The infusion bag liquid pressurized discharge device according to claim 1, characterized in that: The safety closed-loop control module includes a data fusion monitoring subunit, a safety threshold management subunit, a graded warning decision-making subunit and an emergency intervention execution subunit, to achieve full-process safety control of physiological parameters, pressure and flow rate.

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