Control method for an infusion pump and infusion pump

CN117323502BActive Publication Date: 2026-11-03MEDCAPTAIN MEDICAL TECH
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Patent Information

Application Number
CN202311517136.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2022-12-29
Filing Date
2023-11-10
Publication Date
2026-11-03
Estimated Expiration
2043-11-10

AI Technical Summary

Technical Problem

The existing calibration method for infusion pumps has the problem of inaccurate calibration results, especially after changing the type of infusion tubing, the calibration results are not applicable.

Method used

By determining the identification information and/or consumable information of the target infusion consumable on the infusion pump, and based on the identification information and/or consumable information, determining the control rules pre-stored in the infusion pump corresponding to the target infusion consumable, and adjusting the control rules of the target infusion consumable according to the preset correction rules.

Benefits of technology

It achieves accuracy and convenience in infusion pump calibration, adapts to the connection of different types of infusion tubing, and improves infusion accuracy and safety.

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Abstract

The application provides a control method of an infusion pump and an electronic device. The method comprises the following steps: determining identification information and / or consumable information of a target infusion consumable arranged to the infusion pump; determining a control rule corresponding to the target infusion consumable of the infusion pump according to the identification information and / or the consumable information; and adjusting the control rule corresponding to the target infusion consumable according to a preset correction rule. The control rule of each target infusion consumable arranged to the infusion pump can be automatically adjusted according to the adjustment mode of the control rule of the target infusion consumable according to the preset correction rule, so that the calibration mode of the infusion pump is more accurate and convenient.
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Description

Technical Field

[0001] This application relates to the field of infusion pump technology, and in particular to a control method for an infusion pump and an infusion pump. Background Technology

[0002] Infusion pumps, also known as syringe pumps, are intelligent infusion devices. Due to their advantages such as high precision and low dependence on manual labor, they have been increasingly widely used. The accuracy of infusion pump calibration directly affects the infusion accuracy.

[0003] In existing technologies, due to inherent manufacturing and assembly errors in the infusion pump itself, there are instances where calibration fails. Currently, the method for calibrating a non-compliant infusion pump typically involves connecting the pump to a specified type of infusion tubing, obtaining calibration data from the pump as liquid flows through the tubing, and then replacing the corresponding components based on this data.

[0004] However, the calibration methods in the existing technology are not accurate enough. Summary of the Invention

[0005] This application provides a control method for an infusion pump and an infusion pump to solve the problem that the calibration results of the existing calibration methods are not accurate enough.

[0006] In a first aspect, this application provides a method for controlling an infusion pump, comprising:

[0007] Determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump;

[0008] Based on the identification information and / or consumable information, determine the control rules for the infusion pump corresponding to the target infusion consumable;

[0009] The control rules corresponding to the target infusion consumables are adjusted according to the preset correction rules.

[0010] Secondly, this application provides a method for controlling an infusion pump, including:

[0011] Determine the control rules set for the target infusion consumables of the infusion pump;

[0012] According to the control rules, the infusion pump is run, and feedback information of the infusion pump is obtained within a preset time period; the feedback information includes the liquid information of the infusion pump.

[0013] Based on the feedback information, the actual consumable information of the target infusion consumable is determined.

[0014] Thirdly, embodiments of this application provide an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0015] The memory stores computer-executed instructions;

[0016] The processor executes computer execution instructions stored in the memory to implement the control method of the infusion pump according to any one of the first aspects, or to implement the control method of the infusion pump according to any one of the second aspects.

[0017] Fourthly, this application provides an infusion pump, including: a controller, a drive mechanism, a squeezing component, and infusion consumables. The controller is connected to the drive mechanism, the drive mechanism is drivenly connected to the squeezing component, and the squeezing component is disposed on the tube wall of the infusion consumables.

[0018] The controller causes the infusion pump to perform a control method for the infusion pump, the method comprising:

[0019] Determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump;

[0020] Based on the identification information and / or consumable information, determine the control rules for the infusion pump corresponding to the target infusion consumable;

[0021] The control rules corresponding to the target infusion consumables are adjusted according to the preset correction rules.

[0022] This application provides a control method for an infusion pump and the infusion pump itself. By determining the identification information and / or consumable information of a target infusion consumable set to the infusion pump, and based on the identification information and / or consumable information, determining the control rules pre-stored within the infusion pump corresponding to the target infusion consumable, and adjusting the control rules corresponding to the target infusion consumable according to preset correction rules. This method of adjusting the control rules of the target infusion consumable according to preset correction rules allows for automatic adjustment of the control rules for each target infusion consumable set to the infusion pump, making the calibration method of the infusion pump more accurate and convenient. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 A flowchart illustrating a control method for an infusion pump provided in an embodiment of this application;

[0025] Figure 2 A schematic diagram of an infusion pump provided in an embodiment of this application;

[0026] Figure 3A flowchart illustrating a control method for an infusion pump provided in another embodiment of this application;

[0027] Figure 4 A schematic diagram of the structure of a control device for an infusion pump provided in an embodiment of this application;

[0028] Figure 5 A schematic diagram of the structure of a control device for an infusion pump provided in another embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] It should be noted that in the description of the embodiments of this application, the terms "inner" and "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0033] Furthermore, it should be noted that, in the description of the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0034] Infusion pumps, along with syringe pumps, are collectively referred to as infusion pumps. An infusion pump is an intelligent infusion device that can accurately control the infusion drip rate or infusion flow rate, and is widely used in clinical practice. Infusion pumps can greatly improve the accuracy and safety of the infusion process.

[0035] Before leaving the factory, infusion pumps need to undergo quality verification. However, due to inherent processing and assembly errors, some pumps may fail the verification. Currently, the method for calibrating unqualified infusion pumps is to connect the pump to a specified type of infusion tubing and obtain the verification data fed back by the pump as the liquid flows through the tubing. Based on this data, the corresponding components are replaced.

[0036] However, existing technology calibrates based on a specific type of infusion tubing connected to the infusion pump. This can easily lead to a situation where the calibrated infusion pump is only compatible with the type of infusion tubing it was connected to during calibration. When the infusion pump is connected to other types of infusion tubing, the calibration results are not accurate enough.

[0037] Therefore, to address the aforementioned technical problems of the prior art, this application proposes a control method, apparatus, device, and readable medium for an infusion pump. By determining the identification information and / or consumable information of the target infusion consumable set to the infusion pump, and based on the identification information and / or consumable information, determining the control rules pre-stored within the infusion pump corresponding to the target infusion consumable, and adjusting the control rules corresponding to the target infusion consumable according to preset correction rules. This method of adjusting the control rules of the target infusion consumable according to preset correction rules allows for automatic adjustment of the control rules for each target infusion consumable set to the infusion pump, making the calibration method of the infusion pump more accurate and convenient.

[0038] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0039] Figure 1 This is a flowchart illustrating a control method for an infusion pump provided in an embodiment of this application. This method can be applied to... Figure 2 In the infusion pump, such as Figure 2 As shown, the infusion pump includes a controller (not specifically shown in the figure), a drive mechanism (not specifically shown in the figure), a squeezing component 11, and an infusion consumable 12. The drive mechanism is connected to the squeezing component 11. The infusion consumable 12 is a fluid delivery conduit, with one end connected to a fluid storage device and the other end connected to the patient. The infusion consumable 12 is installed inside the infusion pump, and the squeezing component 11 is mounted on the wall of the infusion consumable 12. During operation, the controller controls the drive mechanism, which in turn drives the squeezing component 11 to squeeze the infusion consumable 12, thereby driving the fluid flow within the infusion consumable 12. Figure 1 As shown, the method specifically includes the following steps:

[0040] S10. Determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump.

[0041] Specifically, Figure 2 The infusion pump shown also includes a consumable identification device and / or an interactive device (not shown in the figure) that are communicatively connected to the infusion pump controller. Based on the consumable identification device or the interactive device, the identification information and / or consumable information of the target infusion consumable currently installed on the infusion pump can be determined.

[0042] Among them, infusion consumables 12 generally refer to pipelines for conveying fluids. Identification information may include one or more of the following: brand, model, serial number, code, etc. Consumable information may include one or more of the following: material information, pipe wall thickness information, pipe inner and outer diameter information, and pipe preload information.

[0043] In some embodiments of this application, the infusion consumable 12 is provided with an identification part (not shown in the figure) for identification by the consumable identification device. Different brands or types of infusion consumables 12 may be provided with different identification parts.

[0044] For example, the identification part can be a coating applied to the tube of the infusion consumable 12, which can be formed by applying materials such as ink or pigment; the identification part can also be a specific identification pattern in the shape of dots or other shapes, which can be formed by ink, pigment, or by methods such as pasting or engraving; the identification part can also be a label such as a QR code or barcode. Accordingly, depending on the type of identification part, the consumable identification device also has various types, for example, the consumable identification device can be an image sensor, a contact sensor, a reflective light sensor, a through-beam light sensor, a decoder, etc.

[0045] The infusion pump is equipped with a consumable mounting position. When a target infusion consumable is placed in the mounting position, the identification section of the target consumable aligns with the consumable identification device of the infusion pump. The consumable identification device then detects the identification section and identifies the brand or type of the target consumable, thereby determining the consumable's identification information and / or consumable information. After completion, the consumable identification device feeds back the identification result to the infusion pump's controller.

[0046] In some embodiments of this application, the identification information and / or consumable information of the target infusion consumable disposed on the infusion pump can also be determined by an interactive device.

[0047] For example, the interactive device can be a touchscreen, a button, or a third-party electronic device communicatively connected to the infusion pump. For instance, the infusion pump may have a touchscreen display. When a consumable parameter input activation operation is detected, a parameter input interface is displayed on the infusion pump's screen, allowing the user to input the identification information and / or consumable information of the target infusion consumable. The consumable parameter input activation operation may, but is not limited to, an activation operation of a specific button pre-set on the infusion pump.

[0048] It should be noted that in some embodiments of this application, if the infusion consumable does not have an identification part, the user does not know the specific information of the infusion consumable, that is, it is impossible to determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump. In this case, the user can select the identification information and / or consumable information of an infusion consumable that is similar to the target infusion consumable through an interactive device as the identification information and / or consumable information of the target infusion consumable.

[0049] S20. Based on the identification information and / or consumable information, determine the control rules for the infusion pump corresponding to the target infusion consumable.

[0050] Specifically, the infusion pump includes a storage unit that stores identification information, consumable information, and control rules corresponding to each identification information and / or consumable information. The controller of the infusion pump can determine the control rules pre-stored in the infusion pump corresponding to the target infusion consumable based on the acquired identification information and / or consumable information.

[0051] The control rules indicate the relationships between various operating parameters of the infusion pump. These operating parameters may include, but are not limited to, one or more of the following: motor speed, pressure, voltage, motor current, and infusion rate. These operating parameters can be obtained through various sensors and detection components installed on the infusion pump. For example, a speed sensor detects motor speed, a pressure sensor detects pump pressure, a voltage sensor detects pump voltage, a current sensor detects pump current, and a flow rate sensor detects infusion rate.

[0052] Specifically, the control rules may include, but are not limited to, at least one of the following: infusion accuracy control rules, blockage pressure control rules, bubble detection rules, and drive mechanism current adjustment rules. The infusion accuracy control rule indicates the relationship between the infusion pump motor speed and the infusion rate; different infusion pump motor speeds correspond to different infusion rates, and the infusion rate can be changed by adjusting the infusion pump motor speed. The blockage pressure control rule indicates the relationship between the infusion pump blockage pressure and voltage; different blockage pressures correspond to different voltage values, and an alarm can be triggered when the voltage value reaches a preset alarm threshold. The bubble detection rule indicates the relationship between the infusion pump voltage and the bubble size; different bubble sizes correspond to different voltage values, and the bubble size can be determined by calculating the product of the time to reach the bubble threshold and the infusion rate. The drive mechanism current adjustment rule indicates the relationship between the infusion pump motor current and different infusion consumables. Due to differences in the material and mechanical properties of different infusion consumables, different consumables correspond to different motor currents. Precisely controlling the motor current corresponding to each infusion consumable can extend the operating time, reduce operating temperature, and achieve energy savings.

[0053] It should be noted that the infusion pump has pre-stored control rules for various infusion consumables. Different types of infusion consumables can have different control rules, and each type of infusion consumable can have multiple control rules.

[0054] Furthermore, due to differences in materials, inner diameter, outer diameter, wall thickness, and pre-compression of different types of infusion consumables, the resistance and rebound force of each consumable vary. Consequently, the control rules for different types of infusion consumables also differ, meaning that the operating parameters for different types of infusion consumables are different. For infusion consumables made of harder materials, the corresponding motor speed and motor current are higher to reduce resistance and ensure the normal operation of the infusion pump. For example, two infusion consumables, a and b, with the same inner and outer diameters but different hardnesses, can achieve an infusion rate of 100 ml / h with consumable a having a tube hardness of 60 HB and a motor speed of 1 r / s. Consumable b, with a tube hardness of 70 HB, requires a motor speed of 1.05 r / s to achieve the same infusion rate.

[0055] The control rules specify one or more of the control logic, operating parameters, and relationships between these parameters for the infusion pump. During operation, the infusion pump executes corresponding operations according to these operating parameters. The infusion pump controller can determine the control rules corresponding to the target infusion consumable based on the acquired identification information and / or consumable information, and then ensure the infusion pump operates according to the operating parameters indicated by these control rules, making the pump's operation more convenient and accurate.

[0056] S30. Adjust the control rules corresponding to the target infusion consumables according to the preset correction rules.

[0057] The infusion pump's storage unit also stores preset correction rules corresponding to the identification information and / or consumable information of each infusion consumable. When the identification information and / or consumable information of a target infusion consumable set to the infusion pump is determined, the infusion pump's controller can match the identification information and / or consumable information of the target infusion consumable with the preset correction rules and control rules stored in the infusion pump corresponding to the target infusion consumable. Then, the infusion pump's controller adjusts the control rules for the target infusion consumable according to the preset correction rules.

[0058] The preset correction rule indicates the relationship between the correction parameters and the control rules. This relationship can be determined based on pre-defined mapping relationships, functional relationships, self-learning, or other methods. The correction parameters can be preset or calculated based on feedback information from the infusion pump within a preset time period.

[0059] For example, if the control rule for the target infusion consumable is F1(x), the control rule for the target infusion consumable can be adjusted to F2(x) according to the preset correction rule and the relationship between the correction parameter and the control rule. Wherein, F2(x) = k·F1(x), x represents the motor speed of the infusion pump, F1(x) and F2(x) represent the infusion rate, and k represents the correction parameter.

[0060] In some embodiments of this application, step S30: adjusting the control rules corresponding to the target infusion consumable according to preset correction rules may include:

[0061] Based on the preset correction parameters, the control rules for the target infusion consumables are adjusted according to the relationship between the correction parameters and the control rules.

[0062] It should be noted that the target infusion consumable may include multiple control rules, such as infusion accuracy control rule F1(x), choking pressure control rule G1(x), bubble detection rule H1(x), and drive mechanism current adjustment rule I1(x). The correction parameters corresponding to each control rule can be the same or different. For example, the adjusted infusion accuracy control rule is F2(x), F2(x) = F1(x) + k1, and the adjusted choking pressure control rule is G2(x), G2(x) = G1(x) + k2; where k1 and k2 represent different correction parameters.

[0063] Since the correction parameters are preset, once the identification information and / or consumable information of the target infusion consumable set to the infusion pump are determined, the controller of the infusion pump can directly adjust the control rules of the target infusion consumable according to the preset correction parameters and the relationship between the correction parameters and the control rules, making the calibration method of the infusion pump more convenient and more accurate.

[0064] In some embodiments of this application, step S30: adjusting the control rules corresponding to the target infusion consumable according to preset correction rules may further include:

[0065] S31. Run the infusion pump according to the control rules corresponding to the target infusion consumable.

[0066] Specifically, the control rules specify one or more of the control logic, operating parameters, and relationships between these parameters of the infusion pump. This allows the control rules to determine the operating parameters within the control rules for the target infusion consumable, enabling the infusion pump to perform corresponding operations based on these parameters. For example, it can cause the infusion pump to operate at the motor speed specified in the control rules.

[0067] S32. Obtain feedback information from the infusion pump within a preset time period. The feedback information includes the liquid information from the infusion pump.

[0068] Specifically, feedback information from the infusion pump within a preset time period can be obtained by acquiring the liquid information of the infusion pump through a data acquisition device that is connected to the infusion pump. The data acquisition device can then transmit the acquired liquid information as feedback information to the controller of the infusion pump.

[0069] For example, the data acquisition device may include an electronic weighing device or a pressure sensor. The electronic weighing device can acquire the weight of the liquid output by the infusion pump and use this weight as feedback information. Alternatively, when the data acquisition device is a pressure sensor, the pressure sensor can acquire the liquid pressure value of the liquid output by the infusion pump and use this liquid pressure value as feedback information.

[0070] S33. Based on the feedback information, determine the preset correction rules and adjust the control rules of the target infusion consumables according to the preset correction rules.

[0071] Specifically, the liquid flow rate can be calculated based on the time corresponding to the liquid weight collected by the electronic weighing device; or, the liquid flow rate can be calculated based on the liquid pressure value collected by the pressure sensor; then, the calculated liquid flow rate is compared with the liquid flow rate in the control rules to determine the correction parameters; the controller of the infusion pump adjusts the control rules for the target infusion consumable according to the preset correction rules, that is, the relationship between the correction parameters and the control rules.

[0072] The correction parameter can be determined based on the difference, ratio, or other preset functional relationship between the calculated liquid flow rate and the liquid flow rate in the control rules.

[0073] It should be noted that the target infusion consumable may include multiple control rules, such as infusion accuracy control rule F(x), blockage pressure control rule G(x), bubble detection rule H(x), drive mechanism current adjustment rule I(x), etc., and step 33 may further include:

[0074] S331. Based on the feedback information, determine the preset correction rule corresponding to the first control rule of the target infusion consumable;

[0075] S332. Adjust at least one control rule for the target infusion consumable according to the preset correction rule of the first control rule.

[0076] For example, if the first control rule is the infusion accuracy control rule F(x), the liquid flow rate can be calculated based on the time corresponding to the liquid weight collected by the electronic weighing device. Then, the calculated liquid flow rate is compared with the liquid flow rate in the infusion accuracy control rule F(x) to determine the correction parameter k. According to the preset correction rule, i.e., the relationship between the correction parameter k and the infusion accuracy control rule F(x), the infusion accuracy control rule F(x) is adjusted. Simultaneously, based on the correction parameter k determined by the infusion accuracy control rule F(x), other control rules are adjusted, such as adjusting the blockage pressure control rule G(x), the bubble detection rule H(x), and the drive mechanism current adjustment rule I(x).

[0077] This application determines preset correction rules based on feedback information from the operation of the infusion pump within a preset time period, and then adjusts the control rules of the target infusion consumables according to the preset correction rules, which can make the calibration method of the infusion pump more accurate.

[0078] Furthermore, in some embodiments of this application, after step S33, the method may further include: adjusting the control rules for other types of infusion consumables stored in the infusion pump according to preset correction rules.

[0079] If the above method is adopted, the controller of the infusion pump can determine the preset correction rule corresponding to the target infusion consumable based on the feedback information of the infusion pump running within a preset time period. It can also adjust the control rules of other types of infusion consumables stored in the infusion pump according to the preset correction rule, so that the calibration method of the infusion pump is more accurate.

[0080] Furthermore, in some embodiments of this application, after step S33, the method may further include: determining the actual consumable information of the target infusion consumable set on the infusion pump based on feedback information.

[0081] The actual consumable information may include one or more of the following: material information of the infusion consumable, pipe wall thickness information, pipe inner and outer diameter information, and pipe pre-compression information.

[0082] For example, if the blocking pressure control rule is G(x) = a·b c·x +d, where a represents material information, b represents pipe wall thickness information, c represents pipe inner and outer diameter information, d represents pipe preload information, x represents voltage value, and G(x) represents blockage pressure value. Substitute the four sets of test results (G(x1), x1), (G(x2), x2), (G(x3), x3), (G(x4), x4) into G(x) = a·b c·x +d can calculate the values ​​of a, b, c, and d, thereby determining the actual consumable information of the target infusion consumable.

[0083] The infusion pump stores identification information for various infusion pumps, as well as pre-set consumable information corresponding to each identification. If there is a discrepancy between the determined actual consumable information and the pre-set consumable information stored in the infusion pump, the infusion pump controller can update the pre-set consumable information stored in the infusion pump, that is, replace the original pre-set consumable information with the actual consumable information, thereby calibrating the pre-set consumable information stored in the infusion pump.

[0084] Furthermore, the controller of the infusion pump can also compare the actual consumable information with the preset consumable information of the target infusion consumable. If the deviation between the actual consumable information and the preset consumable information is large, it indicates that the user may have placed the wrong infusion consumable on the infusion pump, and the system will issue an alarm.

[0085] For example, when calibrating infusion consumable A, if the user mistakenly places infusion consumable B on the infusion pump, the calculated actual consumable information of infusion consumable B will have a large deviation from the preset consumable information of infusion consumable A. At this time, the system will issue an alarm prompt, indicating that the infusion consumable has been selected incorrectly.

[0086] In some embodiments of this application, step S30: adjusting the control rules corresponding to the target infusion consumable according to preset correction rules may further include:

[0087] S301. Obtain the initial compensation parameter m0 and preset step size n preset in the infusion pump.

[0088] S302. Calculate the deviation between the product of the initial compensation parameter m0 and the target infusion consumable control rule G(x), m0·G(x), and the target infusion consumable control rule G(x); where G(x) is the liquid flow rate.

[0089] S303. If the deviation value does not meet the preset deviation threshold, the initial compensation parameter m0 is adjusted according to the preset step size n to obtain the adjusted compensation parameter m1; where m1 = m0 + n.

[0090] Calculate the deviation between the product of the adjusted compensation parameter m1 and the target infusion consumable control rule G(x), m1·G(x), and the target infusion consumable control rule G(x);

[0091] S304. If the deviation value meets the preset deviation threshold, the adjusted compensation parameter m1 is determined as the correction parameter, and the control rule of the target infusion consumable is adjusted according to the preset correction rule, that is, the relationship between the correction parameter and the control rule.

[0092] S305. If the deviation value still does not meet the preset deviation threshold, repeat step S303. Adjust the compensation parameter m1 according to the preset step size n to obtain the adjusted compensation parameter m2; where m2 = m1 + n; calculate the deviation value between the adjusted compensation parameter m2 and the product m2G(x) of the control rule G(x) of the target infusion consumable, and determine whether the deviation value meets the deviation threshold; if it does, proceed to step S304 to adjust the adjusted compensation parameter m1. n Once the parameter is determined to be corrected, the control rules for the target infusion consumable are adjusted according to the preset correction rules, i.e., the relationship between the correction parameter and the control rules. If the condition is not met, step S303 is repeated until the deviation value meets the preset deviation threshold.

[0093] It should be noted that the target infusion consumable may include multiple control rules, such as infusion accuracy control rule F(x), blockage pressure control rule G(x), bubble detection rule H(x), and drive mechanism current adjustment rule I(x), etc. If the correction parameter for the blockage pressure control rule G(x) is determined to be m according to the above method... n Then, based on the correction parameter m n Other control rules for the target infusion consumables can be adjusted separately, such as adjusting the infusion accuracy control rule F(x), the bubble judgment rule H(x), and the drive mechanism current adjustment rule I(x).

[0094] If the above method is adopted, the controller of the infusion pump can determine the preset correction rule corresponding to the target infusion consumable based on the compensation parameters. It can also adjust the control rules of other types of infusion consumables stored in the infusion pump according to the determined preset correction rule, so that the calibration method of the infusion pump is more accurate.

[0095] Furthermore, in some embodiments of this application, the above-mentioned control method for the infusion pump further includes: operating the infusion pump according to the adjusted control rules.

[0096] After completing this calibration, running the infusion pump according to the adjusted control rules can improve the accuracy of monitoring.

[0097] Furthermore, in some embodiments of this application, the above-mentioned control method for the infusion pump further includes: updating the control rules for the target infusion consumable.

[0098] When the infusion pump completes this infusion, the control rules corresponding to the target infusion consumable stored in the infusion pump are updated to the adjusted control rules so that when the same type of infusion consumable is installed on the infusion pump next time, it can operate according to the updated control rules, thereby improving the accuracy of monitoring.

[0099] Furthermore, in some embodiments of this application, the above-mentioned control method for the infusion pump further includes: outputting updated control rules for the target infusion consumable.

[0100] After the infusion pump completes its infusion, it updates the control rules for the target infusion consumable and sends these updated rules to external devices connected to the infusion pump. These external devices can include infusion workstations, remote terminals, or other infusion pumps. Each infusion pump sends the updated control rules to the external device, enabling data exchange between different infusion pumps. When the same type of infusion consumable is installed on other infusion pumps, it can directly operate according to the updated control rules, thereby improving monitoring accuracy.

[0101] Figure 3 A flowchart illustrating a control method for an infusion pump according to another embodiment of this application is shown below. Figure 3 As shown, the method specifically includes the following steps:

[0102] S40. Determine the control rules for the target infusion consumables set to the infusion pump.

[0103] In some embodiments of this application, if the identification information and / or consumable information of the target infusion consumable set on the infusion pump is known, that is, the identification information and / or consumable information of the target infusion consumable can be obtained through a consumable identification device and / or interactive device communicatively connected to the infusion pump controller. In this case, the infusion pump controller can determine the control rules of the infusion pump corresponding to the target infusion consumable based on the obtained identification information and / or consumable information.

[0104] Specifically, step S40 may include:

[0105] S41. Determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump. Since step S41 is the same as step S10 in the aforementioned embodiment, its specific implementation will not be described again here.

[0106] S42. Determine the control rules for the infusion pump corresponding to the target infusion consumable based on the identification information and / or consumable information. Since step S42 is the same as step S20 in the aforementioned embodiment, its specific implementation will not be described again here.

[0107] In some embodiments of this application, if the controller of the infusion pump cannot obtain the identification information and / or consumable information of the target infusion consumable set to the infusion pump, that is, it cannot identify the specific information of the target infusion consumable through the consumable identification device communicatively connected to the infusion pump controller, then the user can select identification information and / or consumable information similar to the target infusion consumable through an interactive device, and use the control rules corresponding to the identification information and / or consumable information similar to the target infusion consumable stored in the infusion pump as the control rules corresponding to the target infusion consumable.

[0108] S50. According to the control rules corresponding to the target infusion consumable, run the infusion pump and obtain feedback information from the infusion pump within a preset time period. The feedback information includes the liquid information of the infusion pump.

[0109] Specifically, the control rules indicate the relationship between various operating parameters of the infusion pump. This allows the control rules to determine the operating parameters within the control rules for the target infusion consumable, enabling the infusion pump to perform corresponding operations based on these parameters. For example, it can cause the infusion pump to operate at the motor speed specified in the control rules.

[0110] Feedback information from the infusion pump within a preset time period can be obtained by acquiring the liquid information of the infusion pump through a data acquisition device that is connected to the infusion pump. The data acquisition device can then transmit the acquired liquid information as feedback information to the infusion pump controller.

[0111] For example, the data acquisition device may include an electronic weighing device or a pressure sensor. The electronic weighing device can acquire the weight of the liquid output by the infusion pump and use this weight as feedback information. Alternatively, when the data acquisition device is a pressure sensor, the pressure sensor can acquire the liquid pressure value of the liquid output by the infusion pump and use this liquid pressure value as feedback information.

[0112] S60. Based on the feedback information, determine the actual consumable information of the target infusion consumable.

[0113] The actual consumable information may include one or more of the following: material information of the infusion consumable, pipe wall thickness information, pipe inner and outer diameter information, and pipe pre-compression information.

[0114] For example, if the blocking pressure control rule is G(x) = a·b c·x+d, where a represents material information, b represents pipe wall thickness information, c represents pipe inner and outer diameter information, d represents pipe preload information, x represents voltage value, and G(x) represents blockage pressure value. Substitute the four sets of test results (G(x1), x1), (G(x2), x2), (G(x3), x3), (G(x4), x4) into G(x) = a·b c·x +d can calculate the values ​​of a, b, c, and d, thereby determining the actual consumable information of the target infusion consumable.

[0115] In some embodiments of this application, the control method of the infusion pump further includes: comparing the actual consumable information with the various preset consumable information stored in the infusion pump to determine the identification information of the target infusion consumable.

[0116] Specifically, the infusion pump stores identification information for various infusion pumps, as well as pre-set consumable information corresponding to each identification information. If the target infusion consumable set on the output pump is an infusion consumable of an unknown brand, the controller of the infusion pump will compare the calculated actual consumable information with the various pre-set consumable information stored in the infusion pump to determine the identification information of the target infusion consumable, thereby realizing the identification of infusion consumables of unknown brands.

[0117] Furthermore, in some embodiments of this application, the above-mentioned infusion pump control method further includes: outputting the identification information of the target infusion consumable.

[0118] Specifically, the controller of the infusion pump can display the identification information of the target infusion consumable on the display device of the infusion pump, or send the identification information of the target infusion consumable to an external device connected to the infusion pump, so as to facilitate the user to understand the specific information of the target infusion consumable.

[0119] Furthermore, in some embodiments of this application, the above-described control method for the infusion pump further includes:

[0120] S71. Obtain the identification information of the target infusion consumable;

[0121] S72. Based on the identification information, determine the pre-installed consumable information associated with the identification information;

[0122] S73. Calculate the deviation between the actual consumable information and the preset consumable information. When the deviation reaches the preset deviation threshold, issue an alarm.

[0123] Specifically, if the identification information of the target infusion consumable set on the infusion pump is known, the infusion pump controller can obtain the identification information of the target infusion consumable through a consumable identification device and / or interactive device that is communicatively connected to the infusion pump controller, and match the preset consumable information corresponding to the identification information within the infusion pump. If the deviation between the actual consumable information and the preset consumable information reaches a preset deviation threshold, it indicates that the user may have placed the wrong infusion consumable on the infusion pump, or the user has selected the wrong identification information, and the system will issue an alarm.

[0124] For example, when calibrating infusion consumable A, if the user mistakenly places infusion consumable B on the infusion pump, the calculated actual consumable information of infusion consumable B will have a large deviation from the preset consumable information of infusion consumable A. At this time, the system will issue an alarm prompt, indicating that the infusion consumable has been selected incorrectly.

[0125] Furthermore, if there is a discrepancy between the actual consumable information and the preset consumable information stored in the infusion pump, the preset consumable information stored in the infusion pump can be updated, that is, the actual consumable information is used to replace the original preset consumable information, thereby calibrating the preset consumable information stored in the infusion pump.

[0126] In some embodiments of this application, the control method for the infusion pump further includes adjusting the control rules related to actual consumable information stored in the infusion pump.

[0127] Specifically, the control rules related to the actual consumable information stored in the infusion pump can be adjusted according to preset correction rules. Since the method of adjusting the control rules according to preset correction rules is the same as step S30 in the aforementioned embodiment, its specific implementation will not be described again here.

[0128] Figure 2 Another embodiment of this application provides an infusion pump, which includes: a controller (not specifically shown in the figure), a drive mechanism (not specifically shown in the figure), a squeezing component 11, and an infusion consumable 12. The drive mechanism is tractively connected to the squeezing component 11. The infusion consumable 12 is a fluid delivery conduit, with one end connected to a fluid storage device and the other end connected to a patient. The infusion consumable 12 is disposed within the infusion pump, and the squeezing component 11 is disposed on the wall of the infusion consumable 12. During operation of the infusion pump, the controller controls the drive mechanism to operate, thereby causing the squeezing component 11 to squeeze the infusion consumable 12, thus driving the fluid flow within the infusion consumable 12.

[0129] Specifically, the controller causes the infusion pump to perform the following control method:

[0130] Determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump;

[0131] Based on the identification information and / or consumable information, determine the control rules for the infusion pump corresponding to the target infusion consumable;

[0132] The control rules corresponding to the target infusion consumables are adjusted according to the preset correction rules.

[0133] As one embodiment, determining the identification information and / or consumable information of the target infusion consumable set to the infusion pump includes:

[0134] The identification information and / or consumable information of the target infusion consumable are determined based on the consumable identification device and / or interactive device that are in communication with the infusion pump.

[0135] As another embodiment, the control rules corresponding to the target infusion consumables are adjusted according to preset correction rules, including:

[0136] Operate the infusion pump according to the control rules corresponding to the target infusion consumable;

[0137] Obtain feedback information from the infusion pump within a preset time period; the feedback information includes the liquid information of the infusion pump.

[0138] Based on the feedback information, a preset correction rule is determined, and the control rules for the target infusion consumables are adjusted according to the preset correction rule.

[0139] As yet another example, the target infusion consumables include a variety of control rules;

[0140] Based on the feedback information, preset correction rules are determined, and the control rules for the target infusion consumables are adjusted according to these preset correction rules, including:

[0141] Based on the feedback information, determine the preset correction rule corresponding to the first control rule of the target infusion consumable;

[0142] According to the preset correction rules of the first control rule, at least one control rule of the target infusion consumable is adjusted.

[0143] As another embodiment, the infusion pump stores control rules for various infusion consumables; the method further includes: adjusting the control rules for at least one other type of infusion consumable stored in the infusion pump according to preset correction rules.

[0144] As another embodiment, the method further includes: updating the control rules for the target infusion consumable.

[0145] Figure 4 The present application provides a schematic diagram of the structure of a control device for an infusion pump, which includes: an acquisition module 801, a determination module 802, and an adjustment module 803.

[0146] The acquisition module 801 is used to determine the identification information and / or consumable information of the target infusion consumable set to the infusion pump.

[0147] The determination module 802 is used to determine the control rules of the infusion pump corresponding to the target infusion consumable based on the identification information and / or consumable information.

[0148] The adjustment module 803 adjusts the control rules corresponding to the target infusion consumables according to the preset correction rules.

[0149] As an example, the control rules may include, but are not limited to, at least one of the following: infusion accuracy control rules, blockage pressure control rules, bubble detection rules, and drive mechanism current adjustment rules.

[0150] As another embodiment, the acquisition module 801 determines the identification information and / or consumable information of the target infusion consumable based on the consumable identification device and / or interactive device that are communicatively connected to the infusion pump.

[0151] As another embodiment, the adjustment module 803 may include:

[0152] The operating unit is used to run the infusion pump according to the control rules corresponding to the target infusion consumable.

[0153] The acquisition unit is used to acquire feedback information from the infusion pump within a preset time period; the feedback information includes the liquid information of the infusion pump.

[0154] The analysis unit is used to determine preset correction rules based on feedback information and adjust the control rules of the target infusion consumables according to the preset correction rules.

[0155] As another embodiment, the target infusion consumable includes multiple control rules; the analysis unit may include:

[0156] The correction rule confirmation unit is used to determine the preset correction rule corresponding to the first control rule of the target infusion consumable based on the feedback information.

[0157] The adjustment unit is used to adjust the control rules of the target infusion consumable according to the preset correction rules of the first control rule.

[0158] As another embodiment, the infusion pump stores control rules for various infusion consumables, and the adjustment module 803 may include:

[0159] The adjustment unit is used to adjust the control rules of other types of infusion consumables stored in the infusion pump according to preset correction rules.

[0160] In yet another embodiment, the adjustment module 803 further includes:

[0161] The consumables determination unit determines the actual consumables information of the target infusion consumables based on the feedback information.

[0162] As yet another embodiment, the device further includes:

[0163] The update module is used to update the control rules for the target infusion consumables.

[0164] Figure 5 The present application provides a schematic diagram of the structure of a control device for an infusion pump, which includes: a determination module 901, an operation module 902, and an information analysis module 903.

[0165] The determination module 901 is used to determine the control rules set for the target infusion consumables in the infusion pump.

[0166] The operation module 902 is used to run the infusion pump according to the control rules and obtain feedback information of the infusion pump within a preset time period; the feedback information includes the liquid information of the infusion pump.

[0167] The information analysis module 903 is used to determine the actual consumable information of the target infusion consumable based on the feedback information.

[0168] As an example, the control rules may include, but are not limited to, at least one of the following: infusion accuracy control rules, blockage pressure control rules, bubble detection rules, and drive mechanism current adjustment rules.

[0169] As another embodiment, the infusion pump stores various preset consumable information, as well as identification information of the infusion consumable associated with each preset consumable information; the device also includes:

[0170] The identification module compares the actual consumable information with the information of various pre-set consumables stored in the infusion pump to determine the identification information of the target infusion consumable.

[0171] As yet another embodiment, the device further includes:

[0172] The output module is used to output the identification information of the target infusion consumable.

[0173] As another embodiment, the infusion pump stores identification information for various infusion consumables, as well as pre-set consumable information associated with each identification information; the device also includes:

[0174] The identification acquisition module is used to acquire the identification information of the target infusion consumable.

[0175] The preset information acquisition module is used to determine the preset consumable information associated with the identification information based on the identification information.

[0176] The alarm module is used to calculate the deviation between the actual consumable information and the preset consumable information. When the deviation reaches the preset deviation threshold, an alarm is issued.

[0177] As yet another embodiment, the device further includes:

[0178] The adjustment module is used to adjust the control rules related to the actual consumable information stored in the infusion pump.

[0179] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application, such as... Figure 6 As shown, the device may include at least one processor 701 and a memory 702.

[0180] The memory 702 is used to store programs. Specifically, the program may include program code, which includes computer operation instructions.

[0181] The memory 702 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0182] The processor 701 is used to execute computer execution instructions stored in the memory 702 to implement the methods described in the foregoing embodiments. The processor 701 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0183] Optionally, the electronic device may also include a communication interface 703. In specific implementations, if the communication interface 703, memory 702, and processor 701 are implemented independently, they can be interconnected via a bus to complete communication. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc., but this does not imply that there is only one bus or one type of bus.

[0184] Optionally, in a specific implementation, if the communication interface 703, memory 702, and processor 701 are integrated on a single chip, then the communication interface 703, memory 702, and processor 701 can communicate through an internal interface.

[0185] The electronic device provided in this embodiment is used to perform the aforementioned calibration method for the infusion pump. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0186] This application also provides a computer-readable storage medium, which may include various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. Specifically, the computer-readable storage medium stores program instructions thereon, which are used for the above-mentioned calibration method of the infusion pump.

[0187] This application also provides a computer program product including executable instructions stored in a readable storage medium. At least one processor of an electronic device can read the executable instructions from the readable storage medium, and the processor executes the executable instructions to cause the electronic device to implement the calibration method for the infusion pump provided in the various embodiments described above.

[0188] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0189] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A calibration method for an infusion pump, characterized in that, A controller for an infusion pump, the infusion pump including a controller, a drive mechanism, a squeezing component, and infusion consumables, the controller being connected to the drive mechanism, the drive mechanism being drively connected to the squeezing component, the squeezing component being used to act on the tube wall of the infusion consumables, the method comprising: The controller determines the identification information and / or consumable information of the target infusion consumable set to the infusion pump; The controller determines multiple control rules for the infusion pump corresponding to the target infusion consumable based on the identification information and / or consumable information; wherein, the multiple control rules include a first control rule and at least one second control rule, the first control rule is an infusion accuracy control rule or a blockage pressure control rule, and the at least one second control rule includes at least one of an infusion accuracy control rule, a blockage pressure control rule, a bubble detection rule, and a drive mechanism current adjustment rule, and the at least one second control rule is different from the first control rule; The controller determines a preset correction rule corresponding to the identification information and / or consumable information of the target infusion consumable; wherein, the preset correction rule is used to determine correction parameters; The controller adjusts the first control rule according to the correction parameter, and adjusts the at least one second control rule according to the correction parameter; The controller controls the drive mechanism to operate according to the adjusted first control rule and the at least one second control rule, so as to drive the extrusion component to extrude the target infusion consumable.

2. The calibration method according to claim 1, characterized in that, The first control rule is an infusion accuracy control rule, and the at least one second control rule includes a blockage pressure control rule. The controller determines a correction parameter according to a preset correction rule corresponding to the infusion accuracy control rule, and adjusts the blockage pressure control rule according to the correction parameter.

3. The calibration method according to claim 1, characterized in that, The first control rule is a blockage pressure control rule, and the at least one second control rule includes an infusion accuracy control rule. The controller determines a correction parameter according to a preset correction rule corresponding to the blockage pressure control rule, and adjusts the infusion accuracy control rule according to the correction parameter.

4. The calibration method according to claim 1, characterized in that, The at least one second control rule further includes at least one of a bubble detection rule and a drive mechanism current adjustment rule, and the controller further adjusts at least one of the bubble detection rule and the drive mechanism current adjustment rule according to the correction parameter.

5. The calibration method according to claim 3, characterized in that, The controller determines correction parameters according to a preset correction rule corresponding to the blocking pressure control rule, including: Obtain the pre-set initial compensation parameters and preset step size within the infusion pump; Based on the initial compensation parameters, the preset step size, and the preset deviation threshold, the correction parameters corresponding to the blocking pressure control rule are determined.

6. The calibration method according to claim 1, characterized in that, The determination of the identification information and / or consumable information of the target infusion consumable set to the infusion pump includes: The identification information and / or consumable information of the target infusion consumable are determined based on the consumable identification device and / or interaction device that are communicatively connected to the infusion pump.

7. The calibration method according to claim 1, characterized in that, The controller controls the drive mechanism to operate according to the adjusted first control rule and the at least one second control rule, so that the extrusion component extrudes the target infusion consumable. The method further includes: The controller acquires feedback information from the infusion pump within a preset time period; the feedback information includes the liquid information of the infusion pump. The controller determines the actual consumable information of the target infusion consumable based on the feedback information.

8. The calibration method according to claim 7, characterized in that, The liquid information includes the liquid weight and / or liquid pressure value of the liquid output by the infusion pump; The actual consumable information includes at least one of the following: material information of the target infusion consumable, tube wall thickness information, tube inner and outer diameter information, and tube pre-compression amount information.

9. The calibration method according to claim 7 or 8, characterized in that, The infusion pump stores information on various pre-set consumables, as well as identification information of the infusion consumables associated with each of the pre-set consumables; the method further includes: The controller compares the actual consumable information with the various preset consumable information stored in the infusion pump to determine the identification information of the target infusion consumable.

10. The calibration method according to claim 9, characterized in that, The method further includes: The controller outputs the identification information of the target infusion consumable.

11. The calibration method according to claim 7 or 8, characterized in that, The infusion pump stores identification information for various infusion consumables, as well as pre-set consumable information associated with each of the identification information; the method further includes: The controller acquires the identification information of the target infusion consumable; The controller determines the preset consumable information associated with the identification information based on the identification information; The controller calculates the deviation between the actual consumable information and the preset consumable information, and issues an alarm when the deviation reaches a preset deviation threshold.

12. The calibration method according to claim 7 or 8, characterized in that, After determining the actual consumable information of the target infusion consumable, the method further includes: The controller adjusts the control rules related to the actual consumable information stored in the infusion pump based on the actual consumable information.

13. A delivery pump, characterized in that, include: The system includes a controller, a drive mechanism, an extrusion component, and infusion consumables. The controller is connected to the drive mechanism, and the drive mechanism is connected to the extrusion component via a transmission connection. The extrusion component is used to act on the tube wall of the infusion consumables. The controller is configured to perform the calibration method for the infusion pump according to any one of claims 1 to 12.

Citation Information

Patent Citations

  • Infusion pump and method to enhance long term medication delivery accuracy

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