Infusion pump control method and product

Abstract

The application discloses an infusion pump control method and product, relates to the field of intelligent medical instruments, and combines a pre-stored knowledge base in a central controller to verify and calculate infusion parameters; and further generates a target infusion scheme, which includes the step of presetting a threshold value. The traditional parameter checking relying on the memory and experience of medical staff is converted into automatic completion by system software and logical verification based on an authoritative drug database. Through sensors (flow, pressure, etc.), the external environment is sensed in real time, compared with the expected model in the internal "target scheme", and the output (peristaltic pump driving instruction) is dynamically adjusted. This significantly improves the accuracy, stability and adaptability to individual differences / environmental changes of infusion, makes the infusion process from mechanization to intelligence, can be uniformly monitored and managed through remote control and monitoring of the infusion pump, and improves intelligent network processing capability.

Description

Technical Field

[0001] This application relates to the field of intelligent medical devices, and in particular to an infusion pump control method and product. Background Technology

[0002] Intravenous infusion is an indispensable treatment method in clinical medicine and is widely used in the treatment of various diseases. Portable infusion pumps, as commonly used intravenous infusion medical devices, have advantages such as small size, light weight, and accurate dosing, and are widely used in clinical treatment.

[0003] However, existing portable infusion pumps have some problems: when using a large number of portable infusion pumps, their dispersed distribution makes it inconvenient for medical staff to monitor and manage them uniformly. Most current infusion pumps operate independently and lack intelligent network processing capabilities, resulting in shortcomings in remote monitoring and management, which hinders the intelligent management of infusions. Summary of the Invention

[0004] The purpose of this application is to provide an infusion pump control method and product that can solve the problem of low intelligent network processing capability of infusion pumps, and achieve unified monitoring and management of infusion pumps through remote control and monitoring, thereby improving the intelligent network processing capability.

[0005] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides an infusion pump control method, wherein the infusion pump control method is executed by a central controller of an infusion pump control system, and the infusion pump control method includes: The central controller receives infusion parameters; The infusion parameters are verified and calculated using the knowledge base pre-stored in the central controller; then a target infusion plan is generated, which includes preset thresholds. In response to the infusion start command, the central controller sends a control command to the peristaltic pump according to the target infusion plan. The control command is used to drive the peristaltic pump to start the infusion. The central controller acquires status parameters of the infusion pipeline from multiple sensors; The central controller compares the status parameters with the preset threshold in the target infusion plan, and dynamically adjusts the control commands to the peristaltic pump based on the comparison results. The control commands include control parameters for controlling the operation of the peristaltic pump. The central controller monitors the status parameters and system status; the system status includes the power of the infusion pump. If the status parameters and / or system status indicate an infusion abnormality, a stop command is generated to stop the infusion, an alarm command is generated and sent to the alarm unit, and a stop information is sent to the remote control terminal.

[0006] Optionally, the step of acquiring the status parameters of the infusion tubing from multiple sensors in real time; and having the central controller compare the status parameters with a preset threshold in the target infusion plan, and dynamically adjust the control commands to the peristaltic pump based on the comparison results, includes: Acquire infusion flow rate and pipeline pressure in real time from flow sensor and pressure sensor; The central controller calculates the speed adjustment amount of the drive motor based on the deviation between the collected infusion flow rate and the target flow rate and the deviation between the pipeline pressure and the target pressure, and generates a new control command. The new control command includes the speed adjustment amount, which is used to adjust the motor speed of the peristaltic pump.

[0007] Optionally, the step of verifying and calculating the infusion parameters by combining the knowledge base pre-stored in the central controller, and then generating a target infusion plan, wherein the target infusion plan includes a preset threshold, includes: The central controller retrieves pharmacopoeia information from the knowledge base associated with the infusion parameters; Based on the pharmacopoeia information, the infusion parameters are verified and calculated to generate the target infusion plan, which includes the infusion flow rate, the tubing pressure, the infusion velocity, the total infusion volume, and the associated preset threshold.

[0008] Optionally, the status parameters and / or system status indicating infusion abnormalities include at least one of the following: If the pipeline pressure exceeds the blockage threshold, it indicates that the infusion pipeline is blocked; If the pipeline pressure is lower than the leakage threshold, it indicates that the infusion pipeline is leaking; If the bubble concentration in the pipeline exceeds the bubble threshold, it means that the bubble content in the pipeline exceeds the threshold. If the total infusion volume reaches the set value, it means that the preset total infusion volume has been reached; If an external emergency stop signal is received, it indicates that another emergency has occurred; If the remaining battery power of the system is lower than the battery power threshold, it means that the system power is too low.

[0009] Optionally, the step of generating a stop command to stop the infusion includes: A high-priority stop command is generated and sent to the peristaltic pump to lock the motor rotor of the peristaltic pump, causing the peristaltic pump to stop working immediately.

[0010] Optionally, the central controller, the alarm unit, and the peristaltic pump are each equipped with an independent power supply circuit and an independent control chip.

[0011] Optionally, the infusion pump control method further includes: Receive remote control commands from the remote control terminal, the remote control commands including start infusion, stop infusion, modify parameters, or clear alarm; In response to the remote control command, perform the corresponding operation.

[0012] Optionally, the infusion pump control method further includes: recording a log of the entire infusion process and storing the log locally and / or uploading it to a remote monitoring platform.

[0013] Optionally, the status parameters and / or the system status indicating infusion abnormalities include: infusion line leakage abnormalities; the method for determining the infusion line leakage abnormalities includes: Obtain the pipeline pressure curve within a normal cycle as the baseline curve; Obtain the pipeline pressure curve during the test period as the sample curve; The baseline curve and the sample curve are compared for features; the correlation coefficient between the two curves is calculated. When the correlation coefficient is lower than the coefficient threshold, it is determined that the infusion line is leaking abnormally; when the correlation coefficient is higher than the coefficient threshold, it is determined that the infusion line is normal.

[0014] Secondly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the infusion pump control method described above.

[0015] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides an infusion pump control method and product. It combines a pre-stored knowledge base in a central controller to verify and calculate infusion parameters, thereby generating a target infusion plan. This target infusion plan includes preset thresholds, transforming the traditional parameter verification relying on medical staff's memory and experience into a knowledge-based logical verification automatically completed by the system software. This reduces medical risks caused by human input errors (such as exceeding dosage limits or inappropriate rate) from the source, improving the standardization and safety of treatment. This invention introduces a "target infusion plan generation - plan execution - dynamic adjustment" model. The central controller uses sensors (flow rate, pressure, etc.) to perceive the external environment in real time and compares it with the expected model in the internal "target infusion plan," dynamically adjusting the output (control commands for the peristaltic pump). This significantly improves the accuracy, stability, and adaptability to individual differences / environmental changes in infusion, enabling the infusion process to move from mechanization to intelligence. The central controller continuously monitors status parameters and deeply integrates system status safety monitoring and alarms with remote communication. The system automatically executes an emergency procedure of "stop - alarm - information push." This shortens the response time to anomalies, ensures timely and consistent handling, and frees up medical staff through remote notification, realizing the transformation from single-point protection to networked safety monitoring. Furthermore, all control methods in this application are encapsulated in software programs executed by a central controller. This gives the system high flexibility and scalability. Subsequent functional upgrades (such as adding alarm rules, optimizing control algorithms, and adding new knowledge data to the knowledge base) can be completed through software updates without hardware modifications. This solves the pain points of existing infusion pumps, namely "difficult upgrades and poor functional scalability," laying the foundation for continuous product iteration and intelligent evolution. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic flowchart illustrating an infusion pump control method provided in an embodiment of this application; Figure 2 This is an architecture diagram of the software operating system of an infusion pump control method according to an embodiment of this application; Figure 3 A schematic flowchart illustrating an infusion pump control method provided in an embodiment of this application; Figure 4 This is the main interface of a remote control terminal in an interactive scenario provided in one embodiment of this application; Figure 5This application provides an infusion pump information interface in an interactive scenario, as described in one embodiment. Figure 6 This application provides an example of an abnormal interface for an infusion pump in an interactive scenario. Figure 7 This application provides an alarm information list interface for an interactive scenario in one embodiment of the present application. Figure 8 This application provides an alarm details interface for an interactive scenario in one embodiment of the present application. Figure 9 An interface providing detailed information on wireless alarms of an infusion pump in an interactive scenario, as provided in one embodiment of this application; Figure 10 This application provides an infusion information interface for an interactive scenario, as described in one embodiment. Figure 11 This application provides an interactive scenario for infusion recording using a graphical interface. Figure 12 This application provides an interactive scenario for an infusion record-text interface. Figure 13 This application provides a remote control interface for an interactive scenario in one embodiment; Figure 14 This application provides a remote control information interface for an interactive scenario in one embodiment of the present application. Figure 15 This application provides a remote control interface for infusion in an interactive scenario, as shown in one embodiment. Figure 16 Confirmation information - Start Infusion Interface in an interactive scenario provided in one embodiment of this application; Figure 17 Confirmation information - stop infusion interface in an interactive scenario provided in one embodiment of this application; Figure 18 This application provides a remote control pre-alarm cancellation control interface for an interactive scenario, as provided in one embodiment of the application. Figure 19 A schematic diagram of a reference curve and a sample curve provided in an embodiment of this application; Figure 20 This is a schematic diagram showing the alignment of a reference curve and a sample curve provided in an embodiment of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Please see Figure 1 and Figure 2 In a first aspect, this application provides an infusion pump control method, which is executed by the central controller of the infusion pump control system. The infusion pump control method includes: The S1 central controller receives infusion parameters.

[0021] Optionally, the central controller includes a main CPU, memory, and a user interface. The memory stores system software, a knowledge base (e.g., pharmacopoeia information), patient information, and historical data; the user interface provides human-computer interaction. The main CPU is responsible for executing control algorithms, processing sensor data, and controlling other execution units (e.g., peristaltic pumps). Infusion parameters include: infusion information (such as infusion flow rate, dosage (total infusion volume), total duration, tubing pressure, infusion rate, etc.) and patient information (such as gender, age, weight, ward, bed number, type of medication, administration method, and dosage, etc.). Infusion parameters can be sent from a remote control terminal or input directly by the user on the infusion pump.

[0022] S2 uses the pre-stored knowledge base in the central controller to verify and calculate the infusion parameters; then it generates a target infusion plan, which includes preset thresholds. Specifically, it includes the following steps: The S21 central controller retrieves pharmacopoeia information from the knowledge base associated with infusion parameters.

[0023] It should be noted that the knowledge base includes pharmacopoeia information (including standard infusion rate range, maximum / minimum safe dose, concentration limits, and vascular irritation), patient information (age, weight, body surface area, medical history (such as cardiac and renal function), which may affect drug metabolism and tolerance), and a clinical rule base (hospital or general infusion practice guidelines and incompatibility rules).

[0024] S22 verifies and calculates infusion parameters based on pharmacopoeia information, generating a target infusion plan that includes infusion flow rate, tubing pressure, infusion velocity, total infusion volume, and associated preset thresholds.

[0025] In this step, the data from infusion parameters, patient information, pharmacopoeia information, and clinical rule base are combined and compared to check whether they exceed the safe range (for example, combining the patient's medical history and pharmacopoeia information to determine whether the drug is safe for the patient, or combining the patient's vascular condition and infusion practice guidelines to determine whether the infusion flow rate is too high).

[0026] Within a safe range, personalized dosing rates are calculated based on the patient's physiological parameters. For example, for chemotherapy drugs administered by weight, the infusion rate = (dose mg / weight kg) / time h, and then a clinical rule database is used to assign safe thresholds for the maximum and minimum infusion rates. Alternatively, historical data can be directly used as the target infusion protocol based on the patient's health condition. For instance, when the patient's health is good, previous infusion protocols can be directly used as the target protocol.

[0027] In a specific application scenario, the steps are as follows: Medical staff press the "Infusion" button through the user interface of the infusion pump or the remote control terminal to enter the infusion interface. On the interface, they select "Information" to enter the information interface, and enter the patient information (such as gender, age, weight, ward, bed number, type of medication, method of administration, and dosage). On the information interface, they click "Settings" to enter the settings interface, click "Related Items," and enter the infusion parameters (such as infusion rate, dosage, and time). The central controller performs verification and calculation based on the input infusion parameters and the information in the knowledge base to determine the target infusion plan.

[0028] In response to the infusion start command, the S3 central controller sends a control command to the peristaltic pump according to the target infusion plan. The control command is used to drive the peristaltic pump to start the infusion.

[0029] Medical staff connect and install the infusion tubing, hang the medicine bag, and prepare all necessary items; click "vent", and the system will automatically vent the tubing to ensure there are no air bubbles in the infusion tubing; after venting is complete, click "speed / volume" on the infusion interface to set the infusion speed and volume according to the target infusion plan, and the infusion preparation is complete.

[0030] After preparation, medical staff click the "Start" button on the infusion interface to enter the infusion process. During the infusion, the central controller controls the stepper motor (pump drive system) to drive the peristaltic pump and deliver the infusion according to the set infusion rate and dosage.

[0031] The S4 central controller acquires status parameters of the infusion tubing from multiple sensors. The central controller compares these status parameters with preset thresholds in the target infusion plan and dynamically adjusts the control commands to the peristaltic pump based on the comparison results. These control commands include control parameters for operating the peristaltic pump, specifically: S41 acquires real-time infusion flow rate and pipeline pressure from flow and pressure sensors.

[0032] If the pressure in the infusion tubing exceeds the blockage threshold, it indicates a blockage. If the pressure in the infusion tubing is below the leakage threshold, it indicates a leak. Infusion flow rate is used to monitor the rate of infusion. An excessively high flow rate per unit time indicates a rapid infusion rate.

[0033] The S42 central controller calculates the speed adjustment of the drive motor based on the deviation between the real-time infusion flow rate and the target flow rate, and the deviation between the pipeline pressure and the target pressure, and sends adjustment commands to the motor driving the peristaltic pump.

[0034] The peristaltic pump controls the infusion rate by squeezing the tubing. When the infusion flow rate is detected to be lower than the target flow rate, the pump's peristaltic speed is increased to pressurize the tubing and thus increase the infusion rate. Conversely, when the infusion flow rate is detected to be higher than the target flow rate, the pump's peristaltic speed is decreased to depressurize the tubing and thus decrease the infusion rate. Furthermore, increasing the pump's peristaltic speed to pressurize the tubing must not exceed a blockage threshold to avoid triggering an alarm, and decreasing the pump's peristaltic speed to depressurize the tubing must not fall below a leakage threshold to avoid triggering an alarm.

[0035] The central controller continuously and dynamically adjusts the pump speed based on the deviation between the actual effect and the target value to resist various disturbances, achieving closed-loop control and stabilizing the infusion rate near the target value. Closed-loop control is used in scenarios where the drug administration rate is adjusted based on the patient's real-time physiological response, improving safety. During the control process, the dynamic characteristics of the controlled object (patient) (such as drug sensitivity) are identified online, and infusion parameters are automatically adjusted to adapt to individual patient differences or changes over time (such as changes in the intensity of surgical stimulation).

[0036] In some embodiments, the bubble sensor also monitors for air bubbles in the tubing. An ultrasonic transmitter is mounted on one side of the infusion tubing wall, and a receiver on the other. Ultrasonic waves can penetrate homogeneous liquids well with minimal signal attenuation. When a bubble passes through, the ultrasonic waves are strongly reflected and scattered at the liquid-gas interface, causing a sharp drop in the received signal intensity or producing a specific pattern of phase / frequency changes. When bubbles exceeding a threshold appear in the tubing, the infusion must be stopped immediately to prevent the bubbles from endangering the patient's safety.

[0037] Please see Figure 3 The S5 central controller monitors status parameters and system status; system status includes the power of the infusion pump; if the status parameters and / or system status indicate an infusion abnormality, a stop command is generated to stop the infusion, an alarm command is generated and sent to the alarm unit, and the stop information is sent to the remote control terminal.

[0038] Status parameters and / or system status indicate infusion abnormalities including at least one of the following: if the pipeline pressure exceeds the blockage threshold, it indicates that the infusion pipeline is blocked; if the pipeline pressure is lower than the leakage threshold, it indicates that the infusion pipeline is leaking; if the pipeline bubble concentration exceeds the bubble threshold, it indicates that the bubble content in the pipeline exceeds the threshold; if the total infusion volume reaches the set value, it indicates that the preset total infusion volume has been reached; if an external emergency stop signal is received, it indicates that other emergency situations have occurred; if the remaining system power is lower than the power threshold, it indicates that the system power is too low.

[0039] When additional decision-making logic is needed, it can be configured directly in the central controller's software. For example, if built-in autonomous call logic is required, such as allowing a patient to manually stop the infusion if they feel unwell, or allowing a patient to call medical staff for consultation if they have questions, without temporarily stopping the infusion, this improves the overall system's scalability.

[0040] Please see Figure 19 Optionally, in some embodiments, the status parameters and / or system status representing infusion abnormalities include: infusion tubing leakage abnormalities; the methods for determining infusion tubing leakage abnormalities include: Obtain the pipeline pressure curve within a normal cycle as the baseline curve.

[0041] It should be noted that the baseline curve can be a historical data curve. For example, during the previous infusion operation, under the condition that the tubing was intact and leak-free, the tubing pressure curve for one or more cycles could be recorded as the baseline curve. Alternatively, at the start of the current infusion operation, under the condition that the tubing was intact and leak-free, the tubing pressure curve for one or more cycles could be recorded as the baseline curve. Or, the tubing pressure curve from the previous normal cycle could be recorded as the baseline curve.

[0042] The pipeline pressure curves during the test period are used as sample curves.

[0043] The baseline curve (within period t1) and the sample curve (within period t2) are compared in terms of features. The correlation coefficient between the two curves is calculated. If the correlation coefficient is lower than the coefficient threshold, it is determined that there is an abnormality in the infusion line leakage. If the correlation coefficient is higher than the coefficient threshold, it is determined that the infusion line is normal.

[0044] Feature comparison can be performed across multiple dimensions, such as peak pressure, curve shape, area under the curve, or similarity. Comparing peak pressure characteristics, the peak pressure under normal conditions (generally between 10-15 kPa) is significantly higher than the peak pressure during a leak (generally 2-3 kPa). Comparing curve shape characteristics, the curve under normal conditions is steep and peak-shaped: the pressure rises rapidly to a sharp peak and then drops rapidly; during a leak, the curve is rounded and flattened, with a reduced overall amplitude. The area under the curve under normal conditions is significantly higher than the area under the curve during a leak.

[0045] It should be noted that the correlation coefficient can be selected from at least one of the above characteristics. For example, peak pressure, curve shape, area under the curve, or similarity can be selected as the correlation coefficient.

[0046] Please see Figure 20 The similarity score is obtained using a sliding alignment method. This involves sliding the sample curve to align it with the baseline curve, finding the time point where the match is highest, and then calculating the similarity at that point. The similarity coefficient is a highly robust morphological similarity index. By allowing sliding alignment, it eliminates interference from time asynchrony, reflecting the essential changes in the shape of the sample curve. Even if the data collection in two periods is not precisely synchronized, it can still find the best match and provide an accurate similarity score.

[0047] The method for determining leakage anomalies in infusion tubing provided in this embodiment is more accurate than a single pressure threshold alarm because patient coughing and changes in body position can cause pressure changes, but these usually do not systematically alter the waveform morphology of each cycle, whereas leakage will. The baseline curve can be slowly and adaptively updated to accommodate normal changes in tubing compliance over time, but it remains sensitive to rapid changes (such as leakage).

[0048] Optionally, the step of generating a stop command to stop the infusion includes: generating and sending a high-priority stop command to the peristaltic pump to lock the motor rotor of the peristaltic pump, causing the peristaltic pump to stop working immediately.

[0049] This application establishes a mechanism for normal operation and safety assurance. Under normal operation, the closed-loop control mechanism finely adjusts the pump speed in the background to achieve the treatment goal. The central controller's safety monitoring always operates at the highest level. The central controller does not interfere with the normal calculations of the closed-loop control mechanism, but continuously monitors all sensors (pressure, air bubbles, and electrical charge) and critical states (such as whether the pump speed output by the closed-loop controller is within a reasonable range). Once a "stop condition" is detected (such as pipeline blockage or excessive air bubbles), it immediately issues a highest-priority "stop command." This command overrides and interrupts the output of any closed-loop control algorithm, directly locking the pump head and improving the safety factor. It also reduces the risk of the peristaltic pump motor running wildly when the central control chip malfunctions.

[0050] Optionally, the central controller, alarm unit, and peristaltic pump are each equipped with an independent power supply circuit and an independent control chip.

[0051] In this embodiment, the power supply lines for the central controller (main CPU), alarm unit (alarm CPU / circuit), and peristaltic pump drive module (motor drive CPU / circuit) are physically separate and do not interfere with each other. When any core module of the system experiences a serious failure (such as chip damage, program crash, or power short circuit), the failure can be effectively limited to a localized area, preventing the entire system from completely collapsing. This prevents cascading power outages caused by a power failure in one module. For example, even if a short circuit occurs in the circuit supplying power to the peristaltic pump, the power supply to the central controller and alarm unit remains normal, and the system monitoring and alarm functions are preserved. This also prevents the spread of software-level errors. For example, even if the main program of the central controller crashes or deadlocks due to an anomaly, the dedicated alarm chip can still continue to operate according to its independent logic (such as watchdog timer, hardware alarm line), triggering audible and visual alarms. By setting up independent power circuits and control chips for the central controller, alarm unit, and peristaltic pump drive module, physical isolation of the core functional units of the system is achieved. This ensures that if any unit fails, other units, especially the alarm unit, can still operate normally independently, greatly improving the overall fault tolerance and reliability of the system and meeting the highest safety design standards for medical equipment. It also reduces the risk of the peristaltic pump motor running wildly when the central control chip malfunctions.

[0052] Optionally, the power supply unit of this application is used to provide a stable power supply for the entire system, including: an AC power interface, a built-in power supply, an external power supply interface, a power adapter, and a power management circuit. The AC power interface, the built-in power supply, and the external power supply interface correspond to the three power supply methods of AC power supply, built-in power supply, and external power supply, respectively. The circuit corresponding to each power supply method is set independently. The power management circuit is electrically connected to the central controller and is used to manage the charging and discharging of the battery and the switching of the power supply circuit, and to upload power information to the central controller in real time.

[0053] Optionally, before step S1, the following steps are also included: after power-on, the central controller performs a power-on self-test and loads the pre-stored system software and knowledge base.

[0054] Performing a power-on self-test can improve the safety of the infusion pump.

[0055] Optionally, the infusion pump control method further includes: Receive remote control commands from the remote control terminal. These commands include starting infusion, stopping infusion, modifying parameters, or clearing alarms. Responding to remote control commands, it performs the corresponding operations.

[0056] This step upgrades the infusion pump from an "execution terminal" to a "networked controlled node," allowing healthcare professionals to perform most routine and emergency procedures without physically being at the patient's bedside, freeing nursing care from "fixed locations." When the remote control terminal interface displays that an infusion at a particular bed is about to end or a minor alarm is detected, the nurse can directly "clear the alarm" or "stop the infusion" remotely. This "detect and respond" model significantly improves nursing response speed and overall ward operational efficiency. The infusion pump can interact with the remote control terminal via wireless communication. Through the binding of the infusion pump's embedded software, Wi-Fi, and the remote control terminal, the number and range of infusion pumps that can be wirelessly monitored and controlled by the remote control terminal are unlimited, transforming the essence of individual infusion pump control into a large number of intelligent networked, remotely controlled wearable mobile devices.

[0057] Optionally, the infusion pump control method further includes: Record logs throughout the entire infusion process and store the logs locally and / or upload them to a remote monitoring platform.

[0058] The central controller records and stores all data during the infusion process (such as infusion rate, dosage, time, alarm status, etc.). This data can be used for subsequent analysis, report generation, or record keeping as required by laws and regulations. Logs are uploaded to a remote monitoring platform, and the data can be stored long-term in the hospital's HIS system.

[0059] This application provides an infusion pump control method that combines a pre-stored knowledge base in a central controller to verify and calculate infusion parameters, thereby generating a target infusion plan. The target infusion plan includes steps with preset thresholds, transforming the traditional parameter verification relying on medical staff's memory and experience into a knowledge-based logical verification automatically completed by the system software. This reduces medical risks caused by human input errors (such as exceeding dosage limits or inappropriate rates) from the source, improving the standardization and safety of treatment. This invention introduces a "target infusion plan generation - plan execution - dynamic adjustment" model. The central controller senses the external environment in real time through sensors (flow rate, pressure, etc.) and compares it with the expected model in the internal "target infusion plan," dynamically adjusting the output (control commands for the peristaltic pump). This significantly improves the accuracy, stability, and adaptability to individual differences / environmental changes in infusion, enabling the infusion process to move from mechanization to intelligence. The central controller continuously monitors status parameters and deeply integrates system status safety monitoring and alarms with remote communication, automatically executing a "stop-alarm-information push" emergency procedure. This shortens the response time to anomalies, ensures timely and consistent handling, and frees up medical staff through remote notification, realizing the transformation from single-point protection to networked safety monitoring. Furthermore, all control methods in this application are encapsulated in software programs executed by a central controller. This gives the system high flexibility and scalability. Subsequent functional upgrades (such as adding alarm rules, optimizing control algorithms, and adding new knowledge data to the knowledge base) can be completed through software updates without hardware modifications. This solves the pain points of existing infusion pumps, namely "difficult upgrades and poor functional scalability," laying the foundation for continuous product iteration and intelligent evolution.

[0060] To make this application easier to understand, this application will be described in conjunction with the interaction scenario of the control system of the remote control terminal and the control system of the infusion pump.

[0061] Please see Figure 4 Medical staff log into the remote control terminal's control system and then access the terminal's human-machine interface (SMS infusion management system), which displays the human-machine interfaces for multiple infusion pumps. The remote control terminal can use WinCE, Android, or Linux systems. Operations performed on the remote control terminal are synchronized to the infusion pump's control system, and corresponding operations performed on the infusion pump's control system are synchronized to the remote control terminal.

[0062] Please see Figure 5 This interface displays four operational status messages: "Infusion," "Alarm," "Bubble," and "Blockage," as well as the patient number, ward / bed number, nurse number, remaining time, and bell. The bell icon has two states: gray and yellow. When the icon is gray, it indicates that no remote call has been received; when the icon is yellow and flashing, it indicates that a remote call has been received.

[0063] Please see Figure 6 When the infusion pump triggers an alarm and sends an alarm message, and the remote control terminal successfully receives the alarm message, the background of the corresponding infusion pump's human-machine interface on the remote control terminal will change from blue to red or yellow in real time, and the "ward / bed number" will be enlarged and flashing. Figure 6 As shown, clicking the flashing area will turn it off. The human-machine interface displays four alarm status indicators: "Infusion" status indicator: green for normal infusion, red for infusion stopped; "Alarm" status indicator: green for no alarm, red for high-priority alarm, yellow for medium-priority alarm; "Air Bubble" alarm indicator: green for no alarm, red for air bubble alarm; "Blockage" alarm indicator: green for no alarm, red for blockage alarm. When the remote control terminal successfully receives any alarm information from the infusion pump, it will issue a corresponding visual alarm and a corresponding high-priority or medium-priority audible alarm.

[0064] Please see Figure 7 All alarmed infusion pumps will be found in the alarm list, which allows for quick location of the corresponding infusion pump's human-machine interface.

[0065] Please see Figure 8 The detailed information interface provides statistics on infusion information, including the total number of infusions, the total infusion time, the number of infusion units currently in operation, and the number of units currently experiencing abnormalities.

[0066] Please see Figure 9 When the remote control terminal successfully receives the wireless alarm information sent by the infusion pump, you can click the "alarm" information icon on the interface to view the detailed alarm information and handling methods.

[0067] Please see Figure 10 By clicking (double-clicking or long-pressing) the human-computer interaction interface of the infusion pump, you can view the detailed infusion information of the infusion pump.

[0068] Please see Figure 10 Click Figure 10 The "Record" button displays infusion information and alarm messages during the infusion process. Clicking this button... Figure 10 The "Save Record" button above allows you to enter a filename to save the infusion record. It can store patient information, infusion rate information, infusion time information, alarm information and alarm time information, and can be exported and printed. When you need to view the infusion record (see [link to documentation]), you can access the record. Figure 11 and 12 You can click the "Record" button on the user login screen, select the corresponding file, and then select "Open".

[0069] Click on the infusion information interface (see below) Figure 10 Click the "Remote Control" button in the settings, and after entering the correct password, you can access the remote control interface (see [link]). Figure 13 It can also remotely control the infusion pump via a remote control terminal.

[0070] When operators need to send remote control commands to the infusion pump through the system management software, password verification is required. Only by entering the correct password can they access the remote control command operation interface to perform the operation.

[0071] Remote control functionality is optional. If this function is disabled on the infusion pump, the infusion pump cannot be remotely controlled from the remote control terminal. Aside from this, it will not affect any other functions.

[0072] The remote control interface allows users to edit and modify entered information (patient number, ward / bed number, nurse number), such as... Figure 14 Clicking the "Update" button will send the edited and modified information to the infusion pump.

[0073] The infusion can be started and stopped via the remote control interface. For example... Figure 15 After clicking the "Start" button under the infusion control, a "Confirmation Message" interface will pop up on this screen (e.g., Figure 16 Selecting "Yes" will send a start infusion command to the infusion pump; if you click the "Stop" button under infusion control, a confirmation message will appear on the screen (e.g., ...). Figure 17 If you select "Yes" in the settings, the remote control terminal will send a stop infusion command to the infusion pump.

[0074] When the remote control terminal receives a pre-alarm indicating that the infusion pump has completed its infusion, the "Clear" button in the pre-alarm clearance control becomes operable. Figure 18 Clicking this button will send a command to the infusion pump to close the infusion completion pre-alarm interface. After the infusion pump activates its remote control function and receives the closing command, it will close the infusion completion pre-alarm interface.

[0075] In a second aspect, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the infusion pump control method of any one of the embodiments in the first aspect.

[0076] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0077] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0078] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for controlling an infusion pump, characterized in that, The infusion pump control method is executed by the central controller of the infusion pump control system, and the infusion pump control method includes: The central controller receives infusion parameters; The infusion parameters are verified and calculated using the knowledge base pre-stored in the central controller; then a target infusion plan is generated, which includes preset thresholds. In response to the infusion start command, the central controller sends a control command to the peristaltic pump according to the target infusion plan. The control command is used to drive the peristaltic pump to start the infusion. The central controller acquires status parameters of the infusion tubing collected by multiple sensors; the central controller compares the status parameters with the preset threshold in the target infusion plan, and dynamically adjusts the control command to the peristaltic pump according to the comparison result, the control command including control parameters for controlling the operation of the peristaltic pump; The central controller monitors the status parameters and system status; the system status includes the power of the infusion pump. If the status parameters and / or system status indicate an infusion abnormality, a stop command is generated to stop the infusion, an alarm command is generated and sent to the alarm unit, and a stop information is sent to the remote control terminal.

2. The infusion pump control method according to claim 1, characterized in that, The central controller acquires status parameters of the infusion tubing from multiple sensors; the central controller compares the status parameters with the preset threshold in the target infusion plan, and dynamically adjusts the control commands to the peristaltic pump based on the comparison results. The control commands include steps for controlling the peristaltic pump's operation, such as: Acquire infusion flow rate and pipeline pressure in real time from flow sensor and pressure sensor; The central controller calculates the speed adjustment amount of the drive motor based on the deviation between the collected infusion flow rate and the target flow rate and the deviation between the pipeline pressure and the target pressure, and generates a new control command. The new control command includes the speed adjustment amount, which is used to adjust the motor speed of the peristaltic pump.

3. The infusion pump control method according to claim 1, characterized in that, The step of verifying and calculating the infusion parameters by combining the knowledge base pre-stored in the central controller, and then generating a target infusion plan, wherein the target infusion plan includes a preset threshold, includes: The central controller retrieves pharmacopoeia information from the knowledge base associated with the infusion parameters; Based on the pharmacopoeia information, the infusion parameters are verified and calculated to generate the target infusion plan, which includes the infusion flow rate, the tubing pressure, the infusion velocity, the total infusion volume, and the associated preset threshold.

4. The infusion pump control method according to claim 1, characterized in that, The status parameters and / or the system status indicate an infusion abnormality, including at least one of the following: If the pipeline pressure exceeds the blockage threshold, it indicates that the infusion pipeline is blocked; If the pipeline pressure is lower than the leakage threshold, it indicates that the infusion pipeline is leaking; If the bubble concentration in the pipeline exceeds the bubble threshold, it means that the bubble content in the pipeline exceeds the threshold. If the total infusion volume reaches the set value, it means that the preset total infusion volume has been reached; If an external emergency stop signal is received, it indicates that another emergency has occurred; If the remaining battery power of the system is lower than the battery power threshold, it means that the system power is too low.

5. The infusion pump control method according to claim 1, characterized in that, The step of generating a stop command to stop the infusion includes: A high-priority stop command is generated and sent to the peristaltic pump to lock the motor rotor of the peristaltic pump, causing the peristaltic pump to stop working immediately.

6. The infusion pump control method according to claim 1, characterized in that, The central controller, the alarm unit, and the peristaltic pump are all equipped with independent power supply circuits and independent control chips.

7. The infusion pump control method according to claim 1, characterized in that, The infusion pump control method further includes: Receive remote control commands from the remote control terminal, the remote control commands including start infusion, stop infusion, modify parameters, or clear alarm; In response to the remote control command, perform the corresponding operation.

8. The infusion pump control method according to claim 1, characterized in that, The infusion pump control method further includes: recording a log of the entire infusion process and storing the log locally and / or uploading it to a remote monitoring platform.

9. The infusion pump control method according to claim 1, characterized in that, The status parameters and / or the system status indicate infusion abnormalities, including: infusion tubing leakage abnormalities; the methods for determining infusion tubing leakage abnormalities include: Obtain the pipeline pressure curve within a normal cycle as the baseline curve; Obtain the pipeline pressure curve during the test period as the sample curve; The baseline curve and the sample curve are compared for features; the correlation coefficient between the two curves is calculated. When the correlation coefficient is lower than the coefficient threshold, it is determined that the infusion line is leaking abnormally; when the correlation coefficient is higher than the coefficient threshold, it is determined that the infusion line is normal.

10. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the infusion pump control method according to any one of claims 1-9.

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