Method, device, system and storage medium for updating zero voltage of infusion pump

Abstract

The application belongs to the field of medical equipment, and provides a zero voltage updating method of an infusion pump, comprising: collecting the maximum voltage after the pump door is closed; collecting the stable voltage when the voltage of the infusion pump tends to be stable, and recording the time length during which the voltage tends to be stable; calculating the voltage difference average value of the infusion pump within the time length; forming the data collected and calculated into an updating judgment condition, and judging whether the zero voltage needs to be updated in combination with the updating judgment condition; if yes, updating the real-time voltage of the infusion pump when it is confirmed that the updating is needed into a new zero voltage. The application also provides an updating device, system and storage medium of the zero voltage. The updating method of the application is used for updating the real-time voltage needing to be updated into a new zero voltage by forming the data collected and calculated into an updating judgment condition, realizes the calibration of the pressure sensor in the infusion pump, and further calculates the more accurate pressure in the tube, thereby improving the safety and user experience of the infusion pump.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a method, apparatus, system and storage medium for updating the zero-point voltage of an infusion pump. Background Technology

[0002] Infusion pumps are commonly used infusion devices in clinical treatment. They control the infusion rate by acting on the infusion tubing. Real-time monitoring of whether blockage occurs in the infusion tubing during the infusion process is a necessary clinical requirement.

[0003] Typically, the pressure inside the infusion tubing is monitored in real time to determine whether the needle is aligned and whether there is any blockage in the tubing. If a high pressure value is detected in the tubing, appropriate measures need to be taken to address the issue.

[0004] During the pressure calculation process, the pressure sensor in each machine is usually calibrated. Then, the pressure inside the tube is calculated based on the calibrated parameters. If the calculated pressure value is lower than the actual pressure value, high pressure blockage may occur without alarming, which may harm the patient receiving intravenous infusion. If the calculated pressure value is lower than the actual pressure value, false blockage alarms may occur, which may call medical personnel and increase the workload of medical staff.

[0005] Therefore, it is evident that accurate calculation of the pressure within the tubing is crucial in the use of infusion pumps. Summary of the Invention

[0006] This invention provides a method for updating the zero-point voltage of an infusion pump, aiming to solve the technical problem in the prior art where the inaccurate calibration of the pressure sensor in the infusion pump affects the calculation of pressure inside the infusion tube.

[0007] To address the aforementioned technical problems, in a first aspect, the present invention provides a method for updating the zero-point voltage of an infusion pump, comprising:

[0008] The maximum voltage was collected after the pump door of the infusion pump was closed;

[0009] The stable voltage when the voltage of the infusion pump tends to stabilize is collected as the zero-point voltage and the reference voltage, and the duration of voltage stabilization is recorded.

[0010] Calculate the average voltage difference of the infusion pump during the duration of the infusion.

[0011] The operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage are used as update criteria. The zero-point voltage is then determined based on these update criteria to see if it needs updating.

[0012] If so, the real-time voltage of the infusion pump when it is confirmed that an update is needed will be updated to the new zero-point voltage.

[0013] Further, the step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, includes:

[0014] Determine whether the infusion pump is in operation;

[0015] If it is not in operation, then the voltage of the infusion pump is determined to be stable within the time period preceding the current time point by combining the average voltage difference.

[0016] If the system is in operation, it is determined whether the fluctuation range of the zero-point voltage of the infusion pump is within a preset fluctuation range, which is obtained by setting the reference voltage; and

[0017] If it is within the preset range, then the zero-point voltage needs to be updated.

[0018] Furthermore, the step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, further includes:

[0019] Determine whether the infusion pump is in operation;

[0020] If the pump is in operation, then within the time elapsed after the pump door is closed, determine whether the real-time voltage of the infusion pump is less than the maximum voltage.

[0021] If it is less than the maximum voltage, then determine whether the real-time voltage is decreasing; and

[0022] If the voltage is decreasing, then the zero-point voltage needs to be updated.

[0023] Furthermore, the step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, further includes:

[0024] Determine whether the infusion pump is in operation;

[0025] If the pump is in operation, after the pump door has been closed for the specified duration, it is determined whether the average voltage of the infusion pump during the specified duration is less than the zero-point voltage.

[0026] If the voltage is less than the zero-point voltage, then the average voltage difference is used to determine whether the voltage of the infusion pump has been stable within the preceding time period at the current time point; and

[0027] If the system is in a stable state, then the zero-point voltage needs to be updated.

[0028] Further, the step of determining whether the voltage of the infusion pump has been stable within the preceding time period based on the average voltage difference includes:

[0029] Obtain the standard value of voltage deviation amplitude; and

[0030] Determine whether the average voltage difference is less than the standard value of voltage deviation amplitude within the preceding time period at the current time point.

[0031] Further, if so, then after updating the real-time voltage of the infusion pump to the new zero-point voltage when it is confirmed that an update is needed, the process includes:

[0032] Update the real-time voltage to the new reference voltage.

[0033] Secondly, the present invention provides a device for updating the zero-point voltage of an infusion pump, comprising:

[0034] The first acquisition unit is used to acquire the maximum voltage after the pump door of the infusion pump is closed;

[0035] The second acquisition unit is used to acquire the stable voltage when the voltage of the infusion pump tends to stabilize as the zero-point voltage and the reference voltage, and to record the duration of the voltage stabilization.

[0036] The calculation unit is used to calculate the average voltage difference of the infusion pump during the duration of the infusion.

[0037] The judgment unit is used to determine whether the zero-point voltage needs to be updated by combining the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage into update judgment conditions; and by combining the update judgment conditions.

[0038] The update unit is used to update the real-time voltage of the infusion pump when the preset update conditions are met to the new zero-point voltage if the conditions are met.

[0039] Thirdly, the present invention provides a system for updating the zero-point voltage of an infusion pump, comprising:

[0040] One or more processors; and

[0041] A memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the above-described method for updating the zero-point voltage of the infusion pump.

[0042] Fourthly, the present invention provides a computer-readable storage medium storing program instructions that, when executed by a processor, implement the above-described method for updating the zero-point voltage of an infusion pump.

[0043] In the zero-point voltage update method of the infusion pump of the present invention, the maximum voltage after the pump door is closed, the stable voltage when the voltage of the infusion pump tends to stabilize and the duration thereof, the voltage state of the infusion pump, the operating state, and the average value of the calculated voltage difference are used as update judgment conditions to update the real-time voltage that needs to be updated to a new zero-point voltage, thereby calibrating the pressure sensor in the infusion pump and calculating a more accurate intra-tubular pressure, thus improving the safety of the infusion pump and the user experience. Attached Figure Description

[0044] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments of this invention will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is a schematic flowchart of the method for updating the zero-point voltage of the infusion pump according to the present invention;

[0046] Figure 2 This is a flowchart illustrating a specific embodiment of step S40 in the method for updating the zero-point voltage of an infusion pump according to the present invention.

[0047] Figure 3 This is a flowchart illustrating another specific embodiment of step S40 in the method for updating the zero-point voltage of the infusion pump of the present invention.

[0048] Figure 4 This is a flowchart illustrating another specific embodiment of step S40 in the method for updating the zero-point voltage of the infusion pump of the present invention.

[0049] Figure 5 This is a flowchart illustrating a specific embodiment of step S412 in the method for updating the zero-point voltage of an infusion pump according to the present invention.

[0050] Figure 6This is another schematic diagram of the method for updating the zero-point voltage of the infusion pump according to the present invention;

[0051] Figure 7 This is a schematic diagram of the zero-point voltage updating device for the infusion pump of the present invention;

[0052] Figure 8 This is a schematic diagram of the zero-point voltage update system for the infusion pump of the present invention.

[0053] Explanation of key component symbols:

[0054] The zero-point voltage update system 100, memory 11, processor 12, zero-point voltage update device 200, first acquisition unit 21, second acquisition unit 22, calculation unit 23, judgment unit 24, and update unit 25. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0056] In the description of this application, unless otherwise expressly defined, terms such as "setup" and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the technical solution of this invention, the maximum voltage after the pump door is closed, the stable voltage and duration when the voltage of the infusion pump tends to stabilize, the voltage state and operating state of the infusion pump, and the average value of the calculated voltage difference are used as update judgment conditions to update the real-time voltage that needs to be updated to a new zero-point voltage, thereby calibrating the pressure sensor in the infusion pump and calculating a more accurate intra-tube pressure, thus improving the safety of the infusion pump and the user experience.

[0060] Example 1

[0061] Please see Figure 1 The method for updating the zero-point voltage of an infusion pump according to an embodiment of the present invention includes the following steps:

[0062] S10: The maximum voltage collected after the pump door of the infusion pump is closed;

[0063] S20: Collect the stable voltage when the voltage of the infusion pump tends to stabilize as the zero-point voltage and the reference voltage, and record the duration of the voltage stabilization.

[0064] S30: Calculate the average voltage difference of the infusion pump over the duration of the infusion period;

[0065] S40: The operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero point voltage and the reference voltage are used as update judgment conditions. The zero point voltage is then determined to be updated based on the update judgment conditions.

[0066] S50: If so, update the real-time voltage of the infusion pump when it is confirmed that an update is needed to the new zero-point voltage.

[0067] In the zero-point voltage update method of the infusion pump in this embodiment of the invention, the update judgment conditions are composed of the maximum voltage after the pump door is closed, the stable voltage and duration when the voltage of the infusion pump tends to stabilize, the voltage state of the infusion pump, the operating state, and the calculated average voltage difference. These conditions are used to update the real-time voltage that needs to be updated to the new zero-point voltage, thereby calibrating the pressure sensor in the infusion pump and calculating a more accurate intra-tubular pressure, thus improving the safety of the infusion pump and the user experience.

[0068] In the method steps of this embodiment of the invention, for example, step S40 involves determining whether the zero-point voltage needs to be updated based on the update judgment conditions, which may be a matter that needs to be determined. Step S50 includes determining whether the zero-point voltage needs to be updated based on the update judgment conditions.

[0069] In such cases, if the determination of whether the zero-point voltage needs updating, based on the update judgment condition, is negative, the steps of this method may end here. This can be understood as follows: in some steps of this application, there may be a situation where a yes or no judgment is required. If in subsequent steps only one of yes or no is determined, the other judgment may be assumed to be the end of this method's steps. Similar judgment situations in subsequent embodiments can be referred to the explanation here.

[0070] It is understood that a medical infusion pump generally refers to an instrument that can accurately control the infusion flow rate or the number of infusion drops, ensuring that the medication can enter the patient's body at a uniform rate, with accurate dosage, and safely. The infusion pump in this embodiment of the invention can have the structure of a commonly existing infusion pump. Medical infusion pumps are usually composed of mechanical or electronic control devices that control the infusion rate by acting on the infusion tubing. They are commonly used in situations where strict control of the infusion volume and medication dosage is required.

[0071] It is worth mentioning that real-time monitoring of tubing blockage is crucial during infusion pump administration. By calibrating a pressure sensor and calculating the tubing pressure using its linear parameters, real-time pressure monitoring of the infusion tubing can be achieved, allowing for the determination of needle patency and the presence of blockages. When a high pressure value is detected, an alarm is triggered, enabling medical staff to take appropriate measures. This pressure monitoring effectively ensures the smooth progress of the infusion process and protects patient safety.

[0072] Accurate pressure calculation is crucial for the proper functioning of infusion pumps and patient safety. If the calculated pressure is too low, it may cause high-pressure blockage without triggering an alarm, potentially harming the patient. Conversely, if the calculated pressure is too high, it may generate false blockage alarms, increasing the workload of medical staff. To ensure accurate pressure calculation, the pressure sensor needs to be calibrated regularly. Calibration is a vital step in ensuring the accuracy and reliability of the infusion pump.

[0073] Specifically, the calibration process for pressure sensors typically involves the concept of zero-point voltage. The zero-point voltage of a pressure sensor generally refers to the voltage value output by the sensor when there is no pressure input. It's important to note that different types or models of pressure sensors may have different zero-point voltages. Therefore, updating the zero-point voltage value in real time based on the usage of the infusion pump, and using this as a benchmark to calculate the actual pressure, will yield a more accurate pressure reading.

[0074] In this embodiment of the invention, the zero-point voltage of the pressure sensor in the infusion pump generally refers to the voltage when the infusion tubing is in place, the pump door is closed, and the infusion tubing is unobstructed. Alternatively, it can be understood that when the infusion tubing is in place and unobstructed, the pump door is closed, and the output voltage value of the pressure sensor at this time is the zero-point voltage.

[0075] When the infusion pump door is open, the pressure sensor is not compressed by the pump door, resulting in a low voltage. When the infusion tubing is in place and the pump door is closed, the pump door pressure block at the pressure sensor depresses, compressing the infusion tubing and causing it to deform. This deformation then compresses the pressure sensor, generating pressure. At this time, the output voltage value of the pressure sensor changes, corresponding to the pressure state of the infusion tubing. By measuring and calculating the output voltage value of the pressure sensor, the pressure state of the infusion tubing and the flow rate of the fluid can be determined.

[0076] After the pump door is closed, squeezing the infusion tubing will cause the pressure value to increase continuously over η seconds. Let the voltage value at the ηth second be P. q P q The voltage is the maximum after the pump door is closed, and it gradually decreases thereafter, stabilizing after n seconds. During the compression of the infusion tubing after the pump door closes, the pressure value will continuously increase for a period of time because the compression causes deformation of the tubing, increasing the pressure inside. Simultaneously, the output voltage of the pressure sensor will change accordingly. Subsequently, the pressure value will gradually decrease as the infusion tubing adapts to the pump door's compression, reducing deformation and lowering the pressure.

[0077] Finally, after n seconds, the pressure value will stabilize, and the output voltage of the pressure sensor will also stabilize. Thus, the maximum voltage P collected in step S10 after the infusion pump door is closed... q .

[0078] The voltage has stabilized at the nth second. Therefore, the voltage value Pn at that moment is taken as the zero-point value and reference voltage value of the pressure sensor. The maximum voltage limit for the zero-point voltage fluctuation is P, based on the reference voltage value. max The minimum voltage for fluctuation amplitude is P. max In step S20, the stable voltage P is collected when the voltage of the infusion pump tends to stabilize. n The zero-point voltage and reference voltage are used as the reference voltage, and the time taken for the voltage to stabilize is recorded. In this embodiment, the time taken can be n seconds.

[0079] In step S30, calculating the average voltage difference of the infusion pump over the duration can more specifically involve calculating the average voltage difference P over the first n seconds when the duration is n seconds. Aver for:

[0080] Among them, P i This represents the voltage at the i-th second.

[0081] In step S40, the operating status of the infusion pump, the voltage status of the infusion pump, and the duration, maximum voltage, average voltage difference, zero-point voltage, and reference voltage collected and calculated in previous steps are used as update criteria. By combining these factors, a more comprehensive determination can be made as to whether the zero-point voltage needs to be updated. This then enables the calibration of the pressure sensor.

[0082] It's also worth mentioning that when a batch of pressure sensors has good consistency (meaning the output results are consistent when the pressure sensors are measured multiple times under the same operating conditions) but different zero-point voltages, the pressure values ​​of all pressure sensors can be accurately calculated by calibrating only the parameters of one pressure sensor or a few sensors in a batch. Specifically, one pressure sensor can be selected as a standard sensor, and its zero-point voltage and reference voltage values ​​can be obtained through experiments or measurements. Then, by comparing the output voltage values ​​of other pressure sensors with those of the standard sensor, the zero-point voltage and reference voltage values ​​of the other sensors can be calculated.

[0083] This method utilizes the interrelationships among multiple pressure sensors with good consistency to calibrate the parameters of one sensor and calculate the pressure values ​​from all sensors. When multiple pressure sensors are well-coordinated, this method eliminates the need to calibrate each sensor due to differences in zero points. This reduces calibration workload, significantly lowers labor costs, and improves the consistency and accuracy of pressure measurements.

[0084] Example 2

[0085] Please see Figure 2 Furthermore, Figure 2 This is a flowchart illustrating a specific implementation of step S40 in the method for updating the zero-point voltage of an infusion pump according to an embodiment of the present invention, which involves determining whether the zero-point voltage needs to be updated based on update judgment conditions. The specific steps include:

[0086] S411: Determine if the infusion pump is running;

[0087] S412: If not in operation, determine whether the voltage of the infusion pump has been stable over the previous time period based on the average voltage difference.

[0088] S413: If the system is in a stable state, determine whether the fluctuation range of the zero-point voltage of the infusion pump is within the preset fluctuation range, which is obtained by setting the reference voltage.

[0089] S414: If it is within the preset range, the zero-point voltage needs to be updated.

[0090] Step S411 determines whether the infusion pump is running. More specifically, this can be determined by checking the running status of the infusion pump motor. In other words, the infusion pump is running when the motor is running, and not running or stopped when the motor is stopped. Considering the flexibility and unstable pressure of the infusion tubing, it may be necessary to monitor the voltage value in real time and update the zero-point voltage value to more accurately calculate the voltage of the medication solution within the tubing, whether the motor is running or stopped.

[0091] In a specific implementation, when the infusion pump is in a stopped state, step S412 can be performed by comparing the average voltage difference P. Aver The deviation p from the steady-state value is used to determine whether the voltage of the infusion pump has been in a steady state over the preceding time period. If P Aver If <p, then the voltage is determined to be in a stable state within n seconds; otherwise, it is unstable. The duration preceding the current time point can be n seconds.

[0092] The deviation amplitude p under steady state can be set or limited by the user according to the usage situation, or the component itself can have the deviation amplitude p parameter under steady state.

[0093] In step S413, the voltage fluctuation amplitude within n seconds can be P. max and P min When this occurs, the zero-point voltage needs to be updated. Among them, P... max and P min The range is a preset fluctuation range. More specifically, it can be that the zero-point voltage value is updated in real time to the current voltage value.

[0094] In this embodiment of the invention, when the motor of the infusion pump is stopped, and the voltage remains stable for a period of n seconds, and the voltage fluctuation amplitude is within P... max and P min If the voltage value is between these values, then the current voltage value can be used as the zero-point voltage value for real-time updates.

[0095] This improves the accuracy of the zero-point voltage value. By updating the zero-point voltage value, the impact of voltage fluctuations caused by motor stoppage on the infusion pump can be reduced or even avoided, thereby ensuring the stability and accuracy of the infusion pump's operation.

[0096] It is worth mentioning that steps S412 and S413 can be in a sequential relationship, or other relationships, such as judging step S413 first and then judging step S412.

[0097] Example 3

[0098] Please see Figure 3 Furthermore, Figure 3 This is a flowchart illustrating another specific implementation of step S40 in the method for updating the zero-point voltage of an infusion pump according to an embodiment of the present invention, which involves determining whether the zero-point voltage needs to be updated based on update judgment conditions. The specific steps include:

[0099] S421: Determine if the infusion pump is running;

[0100] S422: If the pump is in operation, determine whether the real-time voltage of the infusion pump is less than the maximum voltage within the time elapsed after the pump door is closed.

[0101] S423: If the voltage is less than the maximum voltage, determine whether the real-time voltage is decreasing; and

[0102] S424: If the voltage is decreasing, the zero-point voltage needs to be updated.

[0103] In this embodiment, when the infusion pump is in operation, the current voltage value (real-time voltage) is monitored in real time within n seconds after the pump door closes, i.e., within the duration of the pump door closing. If the real-time voltage is less than the maximum voltage value P after the pump door closes... q If the real-time voltage subsequently shows a decreasing or continuously decreasing trend, then the zero-point voltage needs to be updated. More specifically, this can mean updating the zero-point voltage and / or the reference voltage to the current voltage value. A decreasing real-time voltage could mean the real-time voltage value gradually decreases over time or due to some operation; a continuously decreasing real-time voltage could mean the real-time voltage value shows a continuous and uninterrupted decreasing trend.

[0104] By updating the zero-point voltage value, the impact of voltage fluctuations caused by motor startup on the infusion pump can be reduced or even avoided.

[0105] It is worth mentioning that steps S422 and S423 can be in a sequential relationship, or other relationships, such as judging step S423 first and then judging step S422.

[0106] In addition, the determination of "whether it is less than" in this embodiment also includes the case of equal to. For the case of determining whether the real-time voltage of the infusion pump is less than the maximum voltage, if the real-time voltage is less than or equal to the maximum voltage, then it is further determined whether the real-time voltage is in a decreasing state. The same applies to the following content, and will not be repeated.

[0107] Example 4

[0108] Please see Figure 4Furthermore, Figure 4 This is a flowchart of another specific implementation of the method for updating the zero-point voltage of an infusion pump according to an embodiment of the present invention, in which step S40 is combined with an update judgment condition to determine whether the zero-point voltage needs to be updated. The specific steps include:

[0109] S431: Determine if the infusion pump is running;

[0110] S432: If the pump is in operation, after the pump door has been closed for a certain period of time, determine whether the average voltage of the infusion pump during that period is less than the zero point voltage.

[0111] S433: If the voltage is less than zero, then determine whether the voltage of the infusion pump has been stable over the preceding time period based on the average voltage difference; and

[0112] S434: If the system is in a stable state, the zero-point voltage needs to be updated.

[0113] In this embodiment, when the infusion pump is in operation, n seconds after the pump door is closed, i.e. after the duration of the pump door closure, if the average voltage of the infusion pump during the duration of the pump door closure is less than the zero point voltage, and the voltage of the infusion pump is in a stable state during the duration preceding the current time point, then it is determined that the zero point voltage needs to be updated. More specifically, the zero point voltage can be updated to the current voltage value.

[0114] In this embodiment of the invention, determining whether the voltage of the infusion pump is stable within the preceding time period by combining the average voltage difference can specifically involve calculating the average voltage difference P within the preceding n seconds when the duration is n seconds. Aver for:

[0115] Among them, P i This represents the voltage at the i-th second.

[0116] By comparing the average voltage difference P Aver The deviation p from the steady-state value is used to determine whether the voltage of the infusion pump has been in a steady state over the preceding time period. If P Aver If <p, then the voltage is determined to be in a stable state within n seconds; otherwise, it is unstable. The duration preceding the current time point can be n seconds.

[0117] It is worth mentioning that steps S432 and S433 can be in a sequential relationship, or other relationships, such as judging step S433 first and then judging step S432.

[0118] In practice, the technical solutions of Embodiments 2, 3 and 4 can be implemented independently or combined with Embodiment 1 for implementation.

[0119] Example 5

[0120] Please see Figure 5 Furthermore, Figure 5 This is a flowchart illustrating a specific implementation of step S412 in Embodiment 2 of the present invention, which involves determining whether the voltage of the infusion pump has been stable within the preceding time period by combining the average voltage difference, and step S433 in Embodiment 4 of the present invention, which involves determining whether the voltage of the infusion pump has been stable within the preceding time period by combining the average voltage difference. Figure 5 Taking step S412 of Example 2 as an example, the specific steps for determining whether the voltage of the infusion pump has been in a stable state over the preceding time period based on the average voltage difference include:

[0121] S4121: Obtain the standard value of voltage deviation amplitude; and

[0122] S4122: Determine whether the average voltage difference is less than the standard value of voltage deviation amplitude within the time period preceding the current time point.

[0123] In this embodiment, the standard value of voltage deviation amplitude in step S4121 can be the deviation amplitude p in a stable state. The deviation amplitude p in a stable state, i.e., the standard value of voltage deviation amplitude, can be set or limited by the user according to the usage situation, or the component itself can have the parameter of deviation amplitude p in a stable state.

[0124] Specifically, the average voltage difference in step S4122 can be P in the aforementioned embodiment. Aver P Aver The method for obtaining this will not be elaborated further. When the average voltage difference is less than the standard value of the voltage deviation amplitude within the preceding time period n at the current time point, i.e., when P... Aver If the voltage is less than p, then the voltage is considered to be in a stable state within n seconds; otherwise, it is considered unstable.

[0125] Example 6

[0126] Please see Figure 6 In some embodiments, the method for updating the zero-point voltage of the infusion pump, after confirming that the real-time voltage of the infusion pump needs to be updated and updating it to the new zero-point voltage, further includes:

[0127] Step S60: Update the real-time voltage to the new reference voltage.

[0128] By updating the real-time voltage to the zero-point voltage and reference voltage, the infusion pump can be ensured to have an accurate reference voltage value during operation, thereby guaranteeing its stability and accuracy. This updating method helps adapt to changes in different operating conditions, improving the control precision and stability of the infusion pump.

[0129] Example 7

[0130] Please see Figure 7 , Figure 7 This is a schematic diagram of one embodiment of the zero-point voltage updating device 200 for an infusion pump according to an embodiment of the present invention, as a reference. Figure 1 The implementation of the zero-point voltage update method for the infusion pump shown in this embodiment provides an infusion pump zero-point voltage update device 200, which is similar to... Figure 1 Corresponding to the method embodiment shown, the zero-point voltage updating device 200 includes:

[0131] The first acquisition unit 21 is used to acquire the maximum voltage after the pump door of the infusion pump is closed;

[0132] The second acquisition unit 22 is used to acquire the stable voltage when the voltage of the infusion pump tends to stabilize as the zero-point voltage and the reference voltage, and to record the duration of the voltage stabilization.

[0133] Calculation unit 23 is used to calculate the average voltage difference of the infusion pump over the duration of the infusion.

[0134] Judgment unit 24 is used to determine whether the zero-point voltage needs to be updated by combining the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage into update judgment conditions; and by combining the update judgment conditions.

[0135] The updating unit 25 is used to update the real-time voltage of the infusion pump when it is confirmed that an update is needed to the new zero-point voltage.

[0136] The beneficial effects of the zero-point voltage updating device 200 for the infusion pump in this embodiment of the invention are equivalent to the beneficial effects of the zero-point voltage updating method for the infusion pump described above, and will not be repeated here.

[0137] Example 8

[0138] Please see Figure 8 This invention also provides a zero-point voltage update system 100 for an infusion pump, comprising:

[0139] One or more processors 12; and

[0140] The memory 11 is used to store one or more programs, wherein when the one or more programs are executed by one or more processors 12, the one or more processors 12 cause the one or more processors 12 to implement the above-described method for updating the zero-point voltage of the infusion pump.

[0141] The beneficial effects of the zero-point voltage update system 100 for the infusion pump in this embodiment of the invention are equivalent to the beneficial effects of the zero-point voltage update method for the infusion pump described above, and will not be repeated here.

[0142] As will be understood by those skilled in the art, the memory 11 includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc.

[0143] In some embodiments, memory 11 may be an internal storage unit of the infusion pump, such as the hard disk or memory of the infusion pump.

[0144] In other embodiments, the memory 11 may also be an external storage device for the infusion pump, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc.

[0145] Of course, the memory 11 may include both the internal storage unit of the infusion pump and its external storage device.

[0146] In this embodiment, the memory 11 is typically used to store the operating system and various application software installed on the infusion pump, such as computer-readable instructions for updating the zero-point voltage of the infusion pump.

[0147] In addition, the memory 11 can also be used to temporarily store various types of data that have been output or will be output.

[0148] In some embodiments, processor 12 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. This processor 12 is typically used to control the overall operation of the infusion pump.

[0149] In this embodiment, the processor 12 is used to execute computer-readable instructions or process data stored in the memory 11, such as computer-readable instructions for executing a method for updating the zero-point voltage of an infusion pump.

[0150] Example 9

[0151] This invention also provides a computer-readable storage medium storing program instructions, which, when executed by a processor, implement the above-described method for updating the zero-point voltage of an infusion pump.

[0152] The beneficial effects of the storage medium of the present invention are equivalent to the beneficial effects of the above-described method for updating the zero-point voltage of the infusion pump, and will not be repeated here.

[0153] This invention can be used in a wide range of general-purpose or special-purpose computer system environments or configurations.

[0154] Examples include: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, and distributed computing environments that include any of the above systems or devices.

[0155] This invention can be described in the general context of computer-executable instructions that are executed by a computer, such as program modules.

[0156] Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific tasks or implement specific abstract data types. This invention can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via communication networks.

[0157] In a distributed computing environment, program modules can reside on local and remote computer storage media, including storage devices.

[0158] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing related hardware with computer-readable instructions. These computer-readable instructions can be stored in a computer-readable storage medium. When executed, the program can include the processes of the embodiments of the above methods. The aforementioned storage medium can be a non-volatile storage medium such as a magnetic disk, optical disk, or read-only memory (ROM), or random access memory (RAM).

[0159] It is understood that those skilled in the art can combine various implementation methods in the above embodiments under the guidance of the above examples to obtain technical solutions with multiple implementation methods.

[0160] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for updating the zero-point voltage of an infusion pump, characterized in that, include: The maximum voltage was collected after the pump door of the infusion pump was closed; The stable voltage when the voltage of the infusion pump tends to stabilize is collected as the zero-point voltage and the reference voltage, and the duration of voltage stabilization is recorded. Calculate the average voltage difference of the infusion pump during the duration of the infusion. The operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage are used to form update judgment conditions. The zero-point voltage is then determined to be updated based on the update judgment conditions. as well as If so, the real-time voltage of the infusion pump when it is confirmed that an update is needed will be updated to the new zero-point voltage. The step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, includes: Determine whether the infusion pump is in operation; If it is not in operation, then the voltage of the infusion pump is determined to be stable within the time period preceding the current time point by combining the average voltage difference. If the system is in a stable state, it is determined whether the fluctuation amplitude of the zero-point voltage of the infusion pump is within a preset fluctuation range, which is obtained by setting the reference voltage; and If it is within the preset range, then the zero-point voltage needs to be updated; The step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, further includes: Determine whether the infusion pump is in operation; If the pump is in operation, after the pump door has been closed for the specified duration, it is determined whether the average voltage of the infusion pump during the specified duration is less than the zero-point voltage. If the voltage is less than the zero-point voltage, then the average voltage difference is used to determine whether the voltage of the infusion pump has been stable within the preceding time period at the current time point; and If the system is in a stable state, then the zero-point voltage needs to be updated.

2. The method for updating the zero-point voltage of an infusion pump according to claim 1, characterized in that, The step of using the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage as update judgment conditions, and combining these update judgment conditions to determine whether the zero-point voltage needs to be updated, further includes: Determine whether the infusion pump is in operation; If the pump is in operation, then within the time elapsed after the pump door is closed, determine whether the real-time voltage of the infusion pump is less than the maximum voltage. If it is less than the maximum voltage, then determine whether the real-time voltage is decreasing; and If the voltage is decreasing, then the zero-point voltage needs to be updated.

3. The method for updating the zero-point voltage of an infusion pump according to claim 1, characterized in that, The step of determining whether the voltage of the infusion pump has been stable within the preceding time period based on the average voltage difference includes: Obtain the standard value of voltage deviation amplitude; and Determine whether the average voltage difference is less than the standard value of voltage deviation amplitude within the preceding time period at the current time point.

4. The method for updating the zero-point voltage of an infusion pump according to claim 1, characterized in that, If so, then after updating the real-time voltage of the infusion pump to the new zero-point voltage when it is confirmed that an update is needed, the process includes: Update the real-time voltage to the new reference voltage.

5. A device for updating the zero-point voltage of an infusion pump, applied to the method for updating the zero-point voltage of an infusion pump according to any one of claims 1 to 4, characterized in that, include: The first acquisition unit is used to acquire the maximum voltage after the pump door of the infusion pump is closed; The second acquisition unit is used to acquire the stable voltage when the voltage of the infusion pump tends to stabilize as the zero-point voltage and the reference voltage, and to record the duration of the voltage stabilization. The calculation unit is used to calculate the average voltage difference of the infusion pump during the duration of the infusion. The judgment unit is used to combine the operating status of the infusion pump, the voltage status of the infusion pump, the duration, the maximum voltage, the average voltage difference, the zero-point voltage, and the reference voltage to form update judgment conditions, and to determine whether the zero-point voltage needs to be updated in combination with the update judgment conditions. as well as The updating unit is used to update the real-time voltage of the infusion pump when it is confirmed that an update is needed to the new zero-point voltage if the condition is met. The judgment unit is specifically used for: Determine whether the infusion pump is in operation; If it is not in operation, then the voltage of the infusion pump is determined to be stable within the time period preceding the current time point by combining the average voltage difference. If it is in a stable state, then determine whether the fluctuation range of the zero-point voltage of the infusion pump is within the preset fluctuation range, which is obtained by setting the reference voltage; as well as If it is within the preset range, then the zero-point voltage needs to be updated; The judgment unit is further specifically used for: Determine whether the infusion pump is in operation; If the pump is in operation, after the pump door has been closed for the specified duration, it is determined whether the average voltage of the infusion pump during the specified duration is less than the zero-point voltage. If it is less than the zero point voltage, then the voltage of the infusion pump is determined by combining the average voltage difference to determine whether the voltage of the infusion pump has been in a stable state during the preceding time period at the current time point; as well as If the system is in a stable state, then the zero-point voltage needs to be updated.

6. A system for updating the zero-point voltage of an infusion pump, characterized in that, include: One or more processors; as well as A memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to implement the method for updating the zero-point voltage of an infusion pump according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores program instructions that, when executed by a processor, implement the method for updating the zero-point voltage of the infusion pump as described in any one of claims 1 to 4.

Images