Infusion tube blockage identification method and device, electronic equipment and storage medium

Abstract

The application provides an occlusion identification method and device of an infusion tube, an electronic device and a storage medium. The method is applied to an infusion pump, the infusion pump is provided with an infusion tube and a pressure sensor, and the method comprises the following steps: obtaining a preset infusion tube consumable coefficient, and obtaining an actual pressure value of the infusion tube and infusion information of a drug to be infused at a current time; the infusion information is used to represent the infusion condition of the drug; the actual pressure value is used to represent an occlusion pressure value of the infusion tube monitored by the pressure sensor at the current time; the occlusion pressure threshold value of the infusion tube at the current time is determined according to the infusion tube consumable coefficient and the infusion information; if the actual pressure value does not meet the numerical requirement of the occlusion pressure threshold value of the infusion tube at the current time, prompt information of the occlusion of the infusion tube is sent; and the prompt information is used to remind a user to check the occlusion condition of the infusion tube. The application can update the occlusion pressure threshold value in real time, and improve the accuracy and efficiency of occlusion identification.

Description

Technical Field

[0001] This application relates to data processing technology, and more particularly to a method, apparatus, electronic device, and storage medium for identifying blockages in infusion tubes. Background Technology

[0002] Infusion pumps are commonly used devices in the medical field, enabling automated intravenous infusion for patients. However, during the delivery of medication, blockages in the infusion tubing can occur, affecting the timely delivery of drugs and potentially leading to medical accidents in severe cases.

[0003] Therefore, when the infusion tubing connecting the infusion pump and the patient becomes blocked, the infusion pump needs to detect the blockage in a timely manner and issue an alarm. How to quickly and accurately identify the blockage is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a method, apparatus, electronic device, and storage medium for identifying blockages in infusion tubes, in order to improve the accuracy of blockage identification.

[0005] In a first aspect, this application provides a method for identifying blockages in an infusion tube. This method is applied to an infusion pump, which is equipped with an infusion tube and a pressure sensor. The method includes:

[0006] The system obtains a preset infusion tubing consumable coefficient, as well as the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the drug infusion status; and the actual pressure value is used to indicate the blockage pressure value of the infusion tubing monitored by the pressure sensor at the current moment.

[0007] Based on the infusion tubing consumable coefficient and the infusion information, determine the blockage pressure threshold of the infusion tubing at the current moment;

[0008] If the actual pressure value does not meet the numerical requirement of the blockage pressure threshold of the infusion tube at the current moment, a prompt message indicating blockage of the infusion tube will be issued; wherein, the prompt message is used to remind the user to check the blockage status of the infusion tube.

[0009] Secondly, this application provides a device for identifying blockages in an infusion tube. This device is applied to an infusion pump, which is equipped with an infusion tube and a pressure sensor. The device includes:

[0010] The information acquisition module is used to acquire a preset infusion tubing consumable coefficient, as well as the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the drug infusion status; and the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment.

[0011] The threshold determination module is used to determine the blockage pressure threshold of the infusion tube at the current time based on the infusion tube consumable coefficient and the infusion information.

[0012] The blockage identification module is used to issue a prompt message indicating that the infusion tube is blocked if the actual pressure value does not meet the blockage pressure threshold requirement of the infusion tube at the current time; wherein the prompt message is used to remind the user to check the blockage status of the infusion tube.

[0013] Thirdly, this application provides an infusion pump, comprising: at least one processor; and

[0014] A memory communicatively connected to the at least one processor; wherein,

[0015] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the infusion tube obstruction identification method according to the first aspect of this application.

[0016] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the infusion tube blockage identification method as described in the first aspect of this application.

[0017] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the method for identifying obstruction of an infusion tube as described in the first aspect of this application.

[0018] This application provides a method, device, electronic equipment, and storage medium for identifying blockages in infusion tubing. By acquiring the actual pressure value of the infusion tubing and the infusion information of the administered medication at the current moment, it determines the blockage pressure threshold of the infusion tubing in real time. The blockage pressure threshold can be calculated based on a preset infusion tubing consumable coefficient and infusion information. If the actual pressure value at the current moment does not meet the value requirement of the blockage pressure threshold, a blockage is determined in the infusion tubing, and the infusion pump issues a blockage warning to remind the user to check. This solves the problem of inaccurate blockage identification caused by a fixed blockage pressure threshold in existing technologies. The blockage pressure threshold is updated in real time according to the medication infusion status, eliminating the need for manual adjustment by the user and improving the accuracy and efficiency of blockage identification. Attached Figure Description

[0019] 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.

[0020] Figure 1 A flowchart illustrating a method for identifying blockages in an infusion tube, provided in an embodiment of this application;

[0021] Figure 2 A flowchart illustrating a method for identifying blockages in an infusion tube, provided in an embodiment of this application;

[0022] Figure 3 A flowchart illustrating a method for identifying blockages in an infusion tube, provided in an embodiment of this application;

[0023] Figure 4 A schematic diagram of the pressure change function provided in the embodiments of this application;

[0024] Figure 5 A schematic diagram of the actual pressure value provided in the embodiments of this application;

[0025] Figure 6 A schematic diagram of the new pressure change function provided in the embodiments of this application;

[0026] Figure 7 A structural block diagram of an infusion tube blockage detection device provided in an embodiment of this application;

[0027] Figure 8 A structural block diagram of an infusion tube blockage detection device provided in an embodiment of this application;

[0028] Figure 9 A structural block diagram of an electronic device provided in an embodiment of this application;

[0029] Figure 10 This is a structural block diagram of an electronic device provided in an embodiment of this application.

[0030] The accompanying drawings have illustrated 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 specific embodiments. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0032] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0033] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. 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.

[0034] In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0035] It should be noted that, due to space limitations, this application specification does not exhaustively list all possible implementation methods. Those skilled in the art, after reading this application specification, should be able to deduce that, as long as the technical features do not contradict each other, any combination of technical features can constitute an optional implementation method. The following provides a detailed description of each embodiment.

[0036] During the delivery of medication to a patient, if the infusion tubing connecting the pump to the patient becomes blocked, the pump detects the blockage and issues an alarm. Currently, the common method for detecting infusion pump blockage is to use a pressure sensor to detect the pressure exerted on the tubing wall. After the infusion is started, when a blockage occurs at the lower end of the tubing, the tubing expands as the infusion volume increases, causing the pressure sensor's output signal to increase, i.e., the pressure value. When the pressure value reaches a preset blockage pressure threshold, the alarm is triggered, thus implementing the infusion pump blockage alarm function.

[0037] However, current infusion blockage detection alarms require manually setting the blockage pressure threshold to trigger the alarm, increasing operational complexity, and the blockage pressure threshold is fixed. Furthermore, the creep of consumables can lead to inaccurate detection of blockage pressure values, affecting the accuracy and efficiency of blockage identification.

[0038] This application provides a method, device, electronic device, and storage medium for identifying blockages in infusion tubes, aiming to solve the above-mentioned technical problems in the prior art.

[0039] 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 be described below with reference to the accompanying drawings.

[0040] Figure 1 This is a flowchart illustrating a method for identifying blockages in an infusion tube according to an embodiment of this application. The method is applied to an infusion pump, which is equipped with an infusion tube and a pressure sensor. The method can be executed by an infusion tube blockage identification device. Figure 1 As shown, the method includes the following steps:

[0041] S101. Obtain the preset infusion tubing consumable coefficient, and obtain the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the drug infusion status; the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment.

[0042] For example, an infusion pump can be used to infuse medication into a patient. The infusion pump may include an infusion pump, a syringe pump, etc. The infusion pump may be equipped with devices such as an infusion tubing and a pressure sensor. The infusion tubing is used to deliver the medication through the infusion pump to the patient's body; the pressure sensor is used to monitor the tubing wall pressure in real time. For example, when the infusion tubing is blocked, it expands as the infusion volume increases, and the pressure value output by the pressure sensor increases. The pressure value monitored by the pressure sensor is determined as the blockage pressure value. By determining the blockage pressure value of the infusion tubing monitored by the pressure sensor as the actual pressure value, the actual pressure value of the infusion tubing can be obtained in real time during the operation of the infusion pump.

[0043] Infusion tubing can be made from various materials. During use, creep may occur, leading to tubing deformation. This deformation can affect the accuracy of determining the obstruction pressure value. Different materials produce different deformations, so a consumable coefficient is pre-set for each material. This consumable coefficient indicates the degree of deformation; for example, a higher coefficient means the tubing is more prone to deformation.

[0044] The material of the infusion tubing in the infusion pump is predetermined, and a consumable coefficient for the tubing is obtained based on this material. For example, the consumable coefficient for the tubing corresponding to a particular material can be determined based on the correlation between the material and the consumable coefficient. During the use of the infusion pump, the actual pressure value of the infusion tubing and the infusion information of the administered medication are acquired in real time. That is, the actual pressure value of the infusion tubing and the infusion information of the administered medication at the current moment are obtained. The actual pressure value can be used to represent the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment. The obstruction pressure value is the pressure value of the tubing wall. The data output by the pressure sensor can be in the form of an AD (Analog to Digital Converter) value. The infusion information can be used to indicate the infusion status of the medication. For example, the infusion information can include the name of the medication, infusion time, infusion rate, and estimated end time.

[0045] For an infusion pump, the consumable coefficient of the infusion tubing remains the same at different times. Based on experience using the infusion pump, the actual pressure value tends to decrease. Infusion information can also change; for example, infusion time and infusion rate can vary continuously.

[0046] S102. Based on the infusion tubing consumable coefficient and infusion information, determine the blockage pressure threshold of the infusion tubing at the current moment.

[0047] For example, after obtaining the consumable coefficient and infusion information of the infusion tubing, the obstruction pressure threshold of the infusion tubing at the current moment can be determined in real time; that is, the obstruction pressure threshold of the infusion tubing can be updated in real time. A calculation formula for the obstruction pressure threshold can be preset, and the consumable coefficient and infusion information can be substituted into the preset formula to calculate the obstruction pressure threshold of the infusion tubing.

[0048] In this embodiment, a correlation between the infusion tubing consumable coefficient and / or infusion information and the obstruction pressure threshold can also be preset. Based on the preset correlation, the obstruction pressure threshold associated with the infusion tubing consumable coefficient and / or infusion information at the current moment is determined as the obstruction pressure threshold of the infusion tubing at the current moment.

[0049] S103. If the actual pressure value does not meet the numerical requirement of the blockage pressure threshold of the infusion tube at the current moment, a prompt message of infusion tube blockage will be issued; the prompt message is used to remind the user to check the blockage status of the infusion tube.

[0050] For example, after obtaining the current occlusion pressure threshold of the infusion tubing, it is determined whether the actual pressure value at the current moment meets the numerical requirement of the occlusion pressure threshold. For instance, the numerical requirement could be that the actual pressure value cannot exceed the occlusion pressure threshold. If the actual pressure value meets the numerical requirement of the current occlusion pressure threshold, the infusion pump can continue to administer the infusion to the patient without issuing an alarm. If the actual pressure value does not meet the numerical requirement of the current occlusion pressure threshold, the infusion pump issues an infusion tubing occlusion warning and can stop the infusion, awaiting intervention from medical personnel. The warning message can be used to remind medical personnel to check the occlusion status of the infusion tubing to prevent occlusion from affecting infusion efficiency. For example, the warning message can be a voice alarm or pop-up notification issued by the infusion pump itself, or it can be sent to the user terminal bound to the infusion pump.

[0051] In this embodiment, if the actual pressure value does not meet the numerical requirement of the infusion tube blockage pressure threshold at the current moment, an infusion tube blockage warning message is issued, including: if the actual pressure value is equal to or greater than the infusion tube blockage pressure threshold, an infusion tube blockage warning message is issued.

[0052] Specifically, the numerical requirement could be that the actual pressure value is less than the infusion tube's blockage pressure threshold. If the actual pressure value is less than the infusion tube's blockage pressure threshold, then the actual pressure value meets the current requirement for the infusion tube's blockage pressure threshold, and no warning message needs to be issued. If the actual pressure value is equal to or greater than the infusion tube's blockage pressure threshold, then the actual pressure value does not meet the current requirement for the infusion tube's blockage pressure threshold, and a warning message indicating infusion tube blockage needs to be issued.

[0053] The advantage of this setting is that by comparing the actual pressure value with the blockage pressure threshold, it is possible to quickly determine whether a blockage alarm needs to be triggered. The judgment process is simple and effectively improves the efficiency of blockage identification.

[0054] In this embodiment, the method further includes: if the actual pressure value of the infusion tube is within a preset pressure value range, then determining the infusion rate corresponding to the actual pressure value based on the preset correlation between the pressure value and the infusion rate; and adjusting the speed of the motor in the infusion pump based on the infusion rate corresponding to the actual pressure value.

[0055] Specifically, the higher the actual pressure value of the infusion tubing, the more severe the blockage. Blockage affects the infusion rate; that is, the higher the actual pressure value, the slower the infusion rate. When the actual pressure value is sufficiently high, the infusion rate needs to be appropriately increased to improve infusion efficiency.

[0056] A pressure range is preset; for example, it can be set to a relatively large obstruction pressure value. The actual pressure value is then continuously monitored to determine if it falls within this range. If the actual pressure value of the infusion tubing is outside the preset range, the infusion can still be administered normally, and no adjustment to the infusion rate is needed. If the actual pressure value is within the preset range, the obstruction is considered severe, and the infusion rate needs to be increased. For example, if the preset pressure range is greater than 500 mmHg, and the pressure sensor detects an actual pressure value greater than 500 mmHg, then an increase in the infusion rate is required.

[0057] A pre-set correlation between pressure and infusion rate is established. After confirming that the actual pressure falls within the preset range, the infusion rate corresponding to the actual pressure is determined based on this correlation, and the infusion pump's current infusion rate is adjusted to match this correlation. The infusion pump is equipped with a motor, and its infusion rate can be controlled by the motor. The motor speed is adjusted based on the infusion rate corresponding to the actual pressure. For example, increasing the motor speed can increase the infusion rate.

[0058] The advantage of this setup is that, due to the creep of the infusion tubing material, the actual pressure value collected by the pressure sensor will gradually decrease. There is a correlation between the actual pressure value and the infusion rate; the higher the actual pressure value, the lower the infusion rate. When the infusion rate decreases, the motor speed can be increased simultaneously. Furthermore, the infusion rate can be automatically adjusted, saving manpower and time, and improving the infusion efficiency of the infusion pump.

[0059] This application provides a method for identifying blockages in infusion tubing. By acquiring the actual pressure value of the infusion tubing at the current moment and the infusion information of the administered medication, a blockage pressure threshold is determined in real time. The blockage pressure threshold can be calculated based on a preset infusion tubing consumable coefficient and infusion information. If the actual pressure value at the current moment does not meet the required value of the blockage pressure threshold, a blockage is determined in the infusion tubing, and the infusion pump issues a blockage warning to remind the user to check. This solves the problem of inaccurate blockage identification caused by a fixed blockage pressure threshold in existing technologies. By updating the blockage pressure threshold in real time according to the medication infusion status, the user does not need to manually change the blockage pressure threshold, thus improving the accuracy and efficiency of blockage identification.

[0060] Figure 2 This is a flowchart illustrating a method for identifying blockages in an infusion tube, which is an optional embodiment based on the above-described embodiments.

[0061] In this embodiment, the infusion information includes the infusion rate. Based on the infusion tubing consumable coefficient and the infusion information, the blockage pressure threshold of the infusion tubing at the current moment is determined. This can be further refined as follows: based on the preset correlation between the drug and the drug viscosity coefficient, the drug viscosity coefficient corresponding to the infused drug is determined as the target viscosity coefficient. Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, and based on the preset pressure threshold determination algorithm, the blockage pressure threshold of the infusion tubing at the current moment is determined.

[0062] like Figure 2 As shown, the method includes the following steps:

[0063] S201. Obtain the preset infusion tubing consumable coefficient, and obtain the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the infusion status of the drug; the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment.

[0064] For example, this step can refer to step S101 above, and will not be repeated here.

[0065] S202. Based on the preset correlation between drugs and drug viscosity coefficients, determine the drug viscosity coefficient corresponding to the infused drug, which is the target viscosity coefficient.

[0066] For example, different drugs have different viscosities. Drugs with low viscosity flow easily, while drugs with high viscosity tend to stick to the walls of the infusion tubing. Different viscosities can affect the degree of blockage in the infusion tubing; for example, the more viscous the drug, the more likely it is to cause blockage.

[0067] The viscosity coefficients of different drugs are predetermined; a higher viscosity coefficient indicates a higher viscosity drug. A pre-set and stored correlation between drugs and their viscosity coefficients is established. Users can input drug name and other information into the infusion pump before starting it. Upon pump startup, the drug to be infused is determined, for example, its name. Based on the pre-set correlation between drugs and their viscosity coefficients, the corresponding viscosity coefficient is determined and used as the target viscosity coefficient.

[0068] S203. Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, determine the blockage pressure threshold of the infusion tubing at the current moment using a preset pressure threshold determination algorithm.

[0069] For example, a pressure threshold determination algorithm is pre-set. This algorithm can be used to determine the blockage pressure threshold of the infusion tubing at the current moment based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment. That is, the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment can be substituted into the pressure threshold determination algorithm, and the calculated value is determined as the blockage pressure threshold of the infusion tubing at the current moment. For example, in the pressure threshold algorithm, the target viscosity coefficient is directly proportional to the blockage pressure threshold, the infusion tubing consumable coefficient is inversely proportional to the blockage pressure threshold, and the infusion rate at the current moment is inversely proportional to the blockage pressure threshold. In other words, the larger the target viscosity coefficient, the larger the blockage pressure threshold; the larger the infusion tubing consumable coefficient, the smaller the blockage pressure threshold; and the higher the infusion rate, the smaller the blockage pressure threshold. In this embodiment, the pressure threshold determination algorithm is not specifically limited.

[0070] In this embodiment, at the current moment, the occlusion pressure threshold of the infusion tubing is:

[0071]

[0072] Where Δ is the occlusion pressure threshold, α is the infusion tubing consumable coefficient, β is the target viscosity coefficient, and v is the infusion rate.

[0073] Specifically, the preset pressure threshold determination algorithm can be the above-mentioned calculation formula for Δ. The infusion tubing consumable coefficient, target viscosity coefficient, and infusion rate at the current moment are input into the calculation formula for Δ, and the calculation result is the occlusion pressure threshold at the current moment.

[0074] The beneficial effect of this setting is that, in the above calculation formula for Δ, the consumable coefficient of the infusion tubing and the target viscosity coefficient remain constant, while the infusion rate can change in real time. This allows the blockage pressure threshold to be updated in real time according to the infusion rate, meeting actual infusion requirements, accurately detecting blockages, and improving the accuracy of blockage identification.

[0075] S204. If the actual pressure value does not meet the numerical requirement of the infusion tube blockage pressure threshold at the current moment, an infusion tube blockage warning message will be issued; the warning message is used to remind the user to check the blockage status of the infusion tube.

[0076] For example, this step can refer to step S103 above, and will not be repeated here.

[0077] This application provides a method for identifying blockages in infusion tubing. By acquiring the actual pressure value of the infusion tubing at the current moment and the infusion information of the administered medication, a blockage pressure threshold is determined in real time. The blockage pressure threshold can be calculated based on a preset infusion tubing consumable coefficient and infusion information. If the actual pressure value at the current moment does not meet the required value of the blockage pressure threshold, a blockage is determined in the infusion tubing, and the infusion pump issues a blockage warning to remind the user to check. This solves the problem of inaccurate blockage identification caused by a fixed blockage pressure threshold in existing technologies. By updating the blockage pressure threshold in real time according to the medication infusion status, the user does not need to manually change the blockage pressure threshold, thus improving the accuracy and efficiency of blockage identification.

[0078] Figure 3 This is a flowchart illustrating a method for identifying blockages in an infusion tube, which is an optional embodiment based on the above-described embodiments.

[0079] In this embodiment, before obtaining the actual pressure value of the infusion tubing at the current moment, the following can be added: in response to the infusion start command of the infusion pump, the pressure value of the infusion tubing at the moment of infusion start is obtained through the pressure sensor, which is the zero-point pressure value.

[0080] like Figure 3 As shown, the method includes the following steps:

[0081] S301. In response to the infusion start command of the infusion pump, the pressure value of the infusion tube at the moment of infusion start is obtained through the pressure sensor, which is the zero-point pressure value.

[0082] For example, a user can issue an infusion start command to the infusion pump to activate it and begin operation. For instance, a user can issue the infusion start command by clicking the "Start" control on the infusion pump. In response to the infusion start command, the infusion pump begins delivering the medication to the patient.

[0083] Upon receiving the infusion start command, the infusion pump monitors the actual pressure value of the infusion tubing in real time to determine if there is any blockage. The infusion pump responds to the user's infusion start command and begins monitoring the pressure value. An initial pressure value can be determined using a pressure sensor configured in the infusion pump; that is, the actual pressure value of the infusion tubing at the moment of infusion start is obtained as the zero-point pressure value.

[0084] S302. Obtain the preset infusion tubing consumable coefficient, and obtain the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment.

[0085] For example, this step can refer to step S101 above, and will not be repeated here.

[0086] S303. Based on the infusion tubing consumable coefficient and infusion information, determine the blockage pressure threshold of the infusion tubing at the current moment.

[0087] For example, based on a preset correlation between drugs and drug viscosity coefficients, the drug viscosity coefficient corresponding to the infused drug is determined as the target viscosity coefficient. The infusion information may include the infusion rate, which is determined in real time at the current moment. Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the current infusion rate, a preset pressure threshold determination algorithm is used to determine the obstruction pressure threshold of the infusion tubing at the current moment.

[0088] In this embodiment, the infusion information includes the drug infusion time; based on the infusion tubing consumable coefficient and the infusion information, the obstruction pressure threshold of the infusion tubing at the current moment is determined, including: determining a preset pressure change function corresponding to the zero-point pressure value, and the drug infusion time at the current moment; determining the pressure value corresponding to the infusion time based on the pressure change function, which is the theoretical pressure value of the infusion tubing at the current moment; wherein, the pressure change function is used to represent the change of the obstruction pressure value with the infusion time; comparing the actual pressure value at the current moment with the theoretical pressure value at the current moment, and determining the pressure difference threshold of the infusion tubing at the current moment based on the comparison result; and determining the obstruction pressure threshold of the infusion tubing at the current moment based on the theoretical pressure value and the pressure difference threshold.

[0089] Based on the comparison results, the pressure difference threshold of the infusion tubing at the current moment is determined, including: if the actual pressure value at the current moment is not less than the theoretical pressure value at the current moment, then the pressure difference threshold of the infusion tubing at the current moment is determined based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate.

[0090] Specifically, the infusion information can include the drug infusion time, which refers to the duration of drug infusion from the start of the infusion pump to the current time. The infusion time of the drug being infused by the infusion pump is determined in real time at the current moment.

[0091] Different zero-point pressure values ​​and pressure change functions are pre-defined, and the pressure change function can be a curve function. Figure 4 This is a schematic diagram of the pressure change function. Figure 4The curve in the graph shows a decreasing trend, which can represent the relationship between the occlusion pressure value and the infusion time under ideal conditions. That is, the pressure change function can be used to represent how the occlusion pressure value changes with infusion time. The horizontal axis represents the infusion time, and the vertical axis represents the occlusion pressure value of the infusion tubing under ideal conditions, as the theoretical pressure value. The zero-point pressure value can be the starting point of the curve, for example, the pressure value corresponding to an infusion time of 0. Different starting points correspond to different pressure change functions; that is, different zero-point pressure values ​​correspond to different pressure change functions. After determining the zero-point pressure value of the infusion pump, the pressure change function corresponding to the zero-point pressure value of the infusion pump is determined based on the preset correlation between the zero-point pressure value and the pressure change function.

[0092] Based on the infusion time at the current moment, determine the theoretical pressure value corresponding to the infusion time under the pressure change function. That is, find the ordinate of the infusion time at the current moment on the x-axis of the pressure change function curve. Compare the actual pressure value at the current moment with the theoretical pressure value at the current moment to determine if the actual pressure value is less than the theoretical pressure value. The comparison result can be either that the actual pressure value is not less than the theoretical pressure value, or that the actual pressure value is less than the theoretical pressure value. If the actual pressure value is not less than the theoretical pressure value, then the pressure difference threshold of the infusion tubing at the current moment is determined in real time based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the current infusion rate. Based on the theoretical pressure value and the pressure difference threshold, the blockage pressure threshold of the infusion tubing at the current moment is determined. For example, the theoretical pressure value and the pressure difference threshold can be added together to obtain the blockage pressure threshold.

[0093] Figure 5 This is a schematic diagram of the actual pressure value. Figure 5 In this system, the preset pressure change function curve is denoted as curve A, and the actual pressure change curve is denoted as curve B. Curve B initially decays normally following the decay trend of curve A. When the infusion time reaches 10 minutes, the infusion tube becomes blocked, and the actual pressure value begins to rise, i.e., curve B begins to rise. The system checks whether the actual pressure value in curve B is equal to or greater than the blockage pressure threshold. If so, the infusion pump alarms, and the infusion can be stopped, awaiting medical personnel intervention. Alternatively, the difference between the actual pressure value and the theoretical pressure value can be determined in real time and compared with a pressure difference threshold. If the difference is equal to or greater than the pressure difference threshold, the infusion pump alarms; if the difference is less than the pressure difference threshold, the infusion continues.

[0094] The advantage of this setup is that it allows for the identification of a pressure change function corresponding to the zero-point pressure value, thereby determining the theoretical pressure value at each moment. When the actual pressure value is not less than the theoretical pressure value, the pressure difference threshold is updated in real time, resulting in the real-time occlusion pressure threshold. Besides the infusion rate, the infusion time also affects the occlusion pressure threshold. Based on experience, a function for the change of occlusion pressure over time in the infusion tubing is pre-determined to obtain the theoretical pressure value at the current moment; the theoretical pressure value varies at different times. A pressure difference threshold is then calculated using a pre-defined formula. Adding the theoretical pressure value to the pressure difference threshold yields the occlusion pressure threshold. By varying the pressure difference threshold and the theoretical pressure value, the occlusion pressure threshold becomes variable, improving the flexibility and accuracy of occlusion identification.

[0095] In this embodiment, the pressure difference threshold of the infusion tube at the current moment is determined based on the target viscosity coefficient, the infusion tube consumable coefficient, and the infusion rate. This includes determining the pressure difference threshold of the infusion tube at the current moment based on a preset pressure difference threshold determination algorithm, according to the target viscosity coefficient, the infusion tube consumable coefficient, and the infusion rate at the current moment.

[0096] Specifically, a pressure difference threshold determination algorithm can be pre-set. This algorithm determines the pressure difference threshold of the infusion tubing at the current moment based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment. The target viscosity coefficient and the infusion tubing consumable coefficient can be fixed values, while the infusion rate varies at different times. Therefore, the pressure difference threshold varies at different times. In this embodiment, the pressure difference threshold determination algorithm is not specifically limited. For example, weights for the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate can be preset, and a weighted sum can be performed on these factors to obtain the pressure difference threshold.

[0097] The advantage of this setting is that by using a preset pressure difference threshold determination algorithm, the pressure difference threshold can be calculated quickly and accurately, thereby improving the efficiency and accuracy of determining the blockage pressure threshold.

[0098] In this embodiment, the infusion rate is a preset fixed value; based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, the pressure difference threshold of the infusion tubing at the current moment is determined, including: searching the preset drug library for the pressure difference threshold pre-stored by the user that corresponds to the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, which is the pressure difference threshold of the infusion tubing at the current moment.

[0099] Specifically, the infusion pump's infusion rate is preset to a fixed value, eliminating the need for real-time monitoring during drug infusion. A pre-defined correlation between the target viscosity coefficient, infusion tubing consumable coefficient, and / or infusion rate, and a pressure difference threshold, can be established within the drug library. The target viscosity coefficient, infusion tubing consumable coefficient, and infusion rate for this infusion process are determined. Based on the preset correlation, a pressure difference threshold corresponding to the target viscosity coefficient, infusion tubing consumable coefficient, and / or infusion rate is determined as the pressure difference threshold for the infusion tubing at the current moment. In other words, the pressure difference threshold can be a preset fixed value.

[0100] As the infusion process proceeds, the infusion time changes continuously, causing the theoretical pressure value to change continuously. Therefore, the occlusion pressure threshold obtained by comparing the theoretical pressure value with the pressure difference threshold also changes in real time, thus achieving a variable occlusion pressure threshold.

[0101] The advantage of this setting is that the pressure difference threshold can be quickly found through the preset correlation, and there is no need to search in real time. The pressure difference threshold only needs to be determined once during the entire infusion process, which improves the efficiency of determining the blockage pressure threshold and thus improves the efficiency of blockage identification.

[0102] In this embodiment, determining the pressure difference threshold of the infusion tubing at the current moment based on the comparison result includes: if the actual pressure value at the current moment is less than the theoretical pressure value at the current moment, then determining the actual pressure value at the current moment as the new zero-point pressure value; determining the pressure change function corresponding to the new zero-point pressure value as the new pressure change function; determining the new infusion time at the new current moment, and determining the pressure value corresponding to the new infusion time based on the new pressure change function as the theoretical pressure value of the infusion tubing at the new current moment; continuing to compare the real-time determined actual pressure value with the theoretical pressure value, and determining the pressure difference threshold of the infusion tubing at the new current moment based on the comparison result.

[0103] Specifically, when the infusion pump starts, the initial blockage pressure value of the infusion tubing is determined as the zero-point pressure value, and the pressure change function corresponding to the zero-point pressure value is found. Based on the determined pressure change function, the theoretical pressure value at the current moment is determined in real time. The actual pressure value at the current moment is obtained and compared with the theoretical pressure value. If the actual pressure value at the current moment is not less than the theoretical pressure value at the current moment, the pressure difference threshold of the infusion tubing at the current moment can be determined based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate. Based on the theoretical pressure value and the pressure difference threshold, the blockage pressure threshold of the infusion tubing at the current moment is then determined. If the actual pressure value at the current moment is less than the theoretical pressure value at the current moment, it is considered that the infusion tubing creep is causing inaccurate blockage pressure values. To solve the problem of pressure inaccuracy caused by creep, a real-time zeroing method can be used; that is, whenever the actual pressure value is detected to be lower than the theoretical pressure value during the infusion process, the actual pressure value is taken as the new zero-point pressure value.

[0104] After determining that the actual pressure value at the current moment is less than the theoretical pressure value, the actual pressure value at the current moment is set as the new zero-point pressure value. Based on the preset correlation between the zero-point pressure value and the pressure change function, the pressure change function corresponding to the new zero-point pressure value is determined. The actual pressure value at the current moment serves as the starting point of the new pressure change function. Monitoring of the actual pressure value continues to obtain the new actual pressure value and theoretical pressure value at the current moment. Based on the new pressure change function, the pressure value corresponding to the new infusion time is determined as the theoretical pressure value of the infusion tubing at the new current moment. Figure 6 This is a schematic diagram of the curve of the new pressure change function. Figure 6In the process, when the infusion time is 5 minutes, the actual pressure value is less than the theoretical pressure value, and a new pressure change function is determined, which is a function of curve C, meaning the pressure change function changes from curve A to curve C. Based on curve C, the new theoretical pressure value continues to be detected, and the pressure value corresponding to the infusion time is determined for subsequent time intervals, which is the theoretical pressure value of the infusion tubing at the current time. The actual pressure value at the new current time is compared with the theoretical pressure value at the new current time. If the actual pressure value at the new current time is not less than the theoretical pressure value at the new current time, then the pressure difference threshold of the infusion tubing at the new current time is determined based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate. Based on the theoretical pressure value and the pressure difference threshold, the blockage pressure threshold of the infusion tubing at the new current time is determined. After obtaining the new obstruction pressure threshold, the system continues to determine whether the new actual pressure value meets the numerical requirement of the new obstruction pressure threshold. If the new actual pressure value at the current moment does not meet the numerical requirement of the obstruction pressure threshold for the infusion tubing at the current moment, an obstruction warning message is issued, which can be used to remind the user to check the obstruction status of the infusion tubing. That is, after obtaining the actual pressure value and the theoretical pressure value at the current moment each time, the real-time determined actual pressure value is compared with the theoretical pressure value. This process is repeated to determine the real-time pressure difference threshold based on the comparison result. Thus, based on the real-time theoretical pressure value and the real-time pressure difference threshold, the real-time obstruction pressure threshold of the infusion tubing at the current moment is determined until the medication in the infusion pump is completely infused.

[0105] The advantage of this setting is that it can determine the new zero-point pressure value in real time, avoid the problem of incorrect zero-point selection due to external factors, improve the accuracy of the determination of the theoretical pressure value, and thus improve the accuracy of the determination of the blockage pressure threshold, ensuring accurate identification of blockage.

[0106] S304. If the actual pressure value does not meet the numerical requirement of the current infusion tube blockage pressure threshold, an infusion tube blockage warning message will be issued.

[0107] For example, this step can refer to step S103 above, and will not be repeated here.

[0108] This application provides a method for identifying blockages in infusion tubing. By acquiring the actual pressure value of the infusion tubing at the current moment and the infusion information of the administered medication, a blockage pressure threshold is determined in real time. The blockage pressure threshold can be calculated based on a preset infusion tubing consumable coefficient and infusion information. If the actual pressure value at the current moment does not meet the required value of the blockage pressure threshold, a blockage is determined in the infusion tubing, and the infusion pump issues a blockage warning to remind the user to check. This solves the problem of inaccurate blockage identification caused by a fixed blockage pressure threshold in existing technologies. By updating the blockage pressure threshold in real time according to the medication infusion status, the user does not need to manually change the blockage pressure threshold, thus improving the accuracy and efficiency of blockage identification.

[0109] Figure 7 This is a structural block diagram of an infusion tube blockage detection device provided in an embodiment of this application. The device is applied to an infusion pump, which is equipped with an infusion tube and a pressure sensor. For ease of explanation, only the parts relevant to the embodiments of this disclosure are shown. (Refer to...) Figure 7 The device includes: an information acquisition module 701, a threshold determination module 702, and a blockage identification module 703.

[0110] The information acquisition module 701 is used to acquire a preset infusion tubing consumable coefficient, and to acquire the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the infusion status of the drug; and the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment.

[0111] The threshold determination module 702 is used to determine the blockage pressure threshold of the infusion tube at the current time based on the infusion tube consumable coefficient and the infusion information.

[0112] The blockage identification module 703 is used to issue a prompt message indicating that the infusion tube is blocked if the actual pressure value does not meet the numerical requirement of the blockage pressure threshold of the infusion tube at the current time; wherein the prompt message is used to remind the user to check the blockage status of the infusion tube.

[0113] Figure 8 This application provides a structural block diagram of an infusion tube blockage detection device according to an embodiment of the present application. Figure 7 Based on the illustrated embodiment, the infusion information includes the infusion rate, such as... Figure 8 As shown, the threshold determination module 702 includes a coefficient determination unit 7021 and a threshold calculation unit 7022.

[0114] The coefficient determination unit 7021 is used to determine the drug viscosity coefficient corresponding to the infused drug, which is the target viscosity coefficient, based on the preset correlation between the drug and the drug viscosity coefficient.

[0115] The threshold calculation unit 7022 is used to determine the blockage pressure threshold of the infusion tube at the current moment based on the target viscosity coefficient, the infusion tube consumable coefficient, and the infusion rate at the current moment, according to a preset pressure threshold determination algorithm.

[0116] In one example, at the current moment, the occlusion pressure threshold of the infusion tubing is:

[0117]

[0118] Wherein, Δ is the obstruction pressure threshold, α is the infusion tubing consumable coefficient, β is the target viscosity coefficient, and v is the infusion rate.

[0119] In one example, the device also includes:

[0120] The zero-point determination module is used to, in response to the infusion start command of the infusion pump, obtain the pressure value of the infusion tube at the moment of infusion start via the pressure sensor before obtaining the actual pressure value of the infusion tube at the current time, which is the zero-point pressure value.

[0121] In one example, the infusion information includes the infusion time of the drug;

[0122] Threshold determination module 702 includes:

[0123] A time determination unit is used to determine a preset pressure change function corresponding to the zero-point pressure value, and the infusion time of the drug at the current moment;

[0124] The theoretical value determination unit is used to determine the pressure value corresponding to the infusion time based on the pressure change function, which is the theoretical pressure value of the infusion tube at the current moment; wherein, the pressure change function is used to represent the change of the obstruction pressure value with the infusion time;

[0125] The difference threshold determination unit is used to compare the actual pressure value at the current moment with the theoretical pressure value at the current moment, and determine the pressure difference threshold of the infusion tube at the current moment based on the comparison result.

[0126] The pressure threshold determination unit is used to determine the obstruction pressure threshold of the infusion tube at the current moment based on the theoretical pressure value and the pressure difference threshold.

[0127] In one example, the difference threshold determination unit includes:

[0128] The first determining subunit is used to determine the pressure difference threshold of the infusion tube at the current moment, based on the target viscosity coefficient, the infusion tube consumable coefficient, and the infusion rate, if the actual pressure value at the current moment is not less than the theoretical pressure value at the current moment.

[0129] In one example, the first determined sub-unit is specifically used for:

[0130] Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, a preset pressure difference threshold is used to determine the pressure difference threshold of the infusion tubing at the current moment.

[0131] In one example, the infusion rate is a preset fixed value;

[0132] The difference threshold determination unit is specifically used for:

[0133] The system retrieves a pre-stored pressure difference threshold from the preset drug library, which corresponds to the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, and sets this threshold as the pressure difference threshold for the infusion tubing at the current moment.

[0134] In one example, the difference threshold determination unit also includes:

[0135] The second determining subunit is used to determine the pressure value corresponding to the infusion time as the theoretical pressure value of the infusion tube at the current moment according to the pressure change function, and if the actual pressure value at the current moment is less than the theoretical pressure value at the current moment, then the actual pressure value at the current moment is determined as the new zero-point pressure value.

[0136] The function update subunit is used to determine the pressure change function corresponding to the new zero-point pressure value, which is the new pressure change function;

[0137] The theoretical pressure value determination subunit determines the new infusion time at the new current moment, and determines the pressure value corresponding to the new infusion time based on the new pressure change function, which is the theoretical pressure value of the infusion tube at the new current moment;

[0138] The loop subunit is used to continue comparing the real-time determined actual pressure value with the theoretical pressure value, and based on the comparison result, determine the pressure difference threshold of the infusion tube at the new current moment.

[0139] In one example, the blockage detection module 703 is specifically used for:

[0140] If the actual pressure value is equal to or greater than the blockage pressure threshold of the infusion tube, a warning message indicating that the infusion tube is blocked will be issued.

[0141] In one example, the device also includes:

[0142] The speed determination module is used to determine the infusion speed corresponding to the actual pressure value if the actual pressure value of the infusion tube is within a preset pressure value range, based on the correlation between the preset pressure value and the infusion speed.

[0143] The speed adjustment module is used to adjust the speed of the motor in the injection pump according to the injection speed corresponding to the actual pressure value.

[0144] Figure 9 This is a structural block diagram of an electronic device provided in an embodiment of this application. The electronic device may be an infusion pump, such as... Figure 9 As shown, the electronic device includes: a memory 91 and a processor 92; the memory 91 is a memory for storing executable instructions of the processor 92.

[0145] The processor 92 is configured to perform the methods provided in the embodiments described above.

[0146] The electronic device also includes a receiver 93 and a transmitter 94. The receiver 93 is used to receive instructions and data sent by other devices, and the transmitter 94 is used to send instructions and data to external devices.

[0147] Figure 10 This is a structural block diagram of an electronic device according to an exemplary embodiment, the device being an infusion pump.

[0148] Device 1000 may include one or more of the following components: processing component 1002, memory 1004, power supply component 1006, multimedia component 1008, audio component 1010, input / output (I / O) interface 1012, sensor component 1014, and communication component 1016.

[0149] Processing component 1002 typically controls the overall operation of device 1000, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 1002 may include one or more processors 1020 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1002 may include one or more modules to facilitate interaction between processing component 1002 and other components. For example, processing component 1002 may include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.

[0150] Memory 1004 is configured to store various types of data to support the operation of device 1000. Examples of this data include instructions for any application or method operating on device 1000, contact data, phonebook data, messages, pictures, videos, etc. Memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0151] Power supply component 1006 provides power to various components of device 1000. Power supply component 1006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 1000.

[0152] Multimedia component 1008 includes a screen that provides an output interface between the device 1000 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1008 includes a front-facing camera and / or a rear-facing camera. When the device 1000 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0153] Audio component 1010 is configured to output and / or input audio signals. For example, audio component 1010 includes a microphone (MIC) configured to receive external audio signals when device 1000 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1004 or transmitted via communication component 1016. In some embodiments, audio component 1010 also includes a speaker for outputting audio signals.

[0154] I / O interface 1012 provides an interface between processing component 1002 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0155] Sensor assembly 1014 includes one or more sensors for providing state assessments of various aspects of device 1000. For example, sensor assembly 1014 may detect the on / off state of device 1000, the relative positioning of components such as the display and keypad of device 1000, changes in the position of device 1000 or a component of device 1000, the presence or absence of user contact with device 1000, the orientation or acceleration / deceleration of device 1000, and temperature changes of device 1000. Sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1014 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0156] Communication component 1016 is configured to facilitate wired or wireless communication between device 1000 and other devices. Device 1000 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 1016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1016 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0157] In an exemplary embodiment, device 1000 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0158] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1004 including instructions, which can be executed by a processor 1020 of device 1000 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0159] A non-transitory computer-readable storage medium, wherein when the instructions in the storage medium are executed by the processor of a terminal device, the terminal device is able to perform the aforementioned method for identifying blockages in the infusion tube of the terminal device.

[0160] This application also discloses a computer program product, including a computer program that, when executed by a processor, implements the method described in this embodiment.

[0161] Various embodiments of the systems and technologies described above in this application can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0162] The program code used to implement the methods of this application may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or electronic device.

[0163] In the context of this application, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0164] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0165] The systems and technologies described herein can be implemented in computing systems that include back-end components (e.g., as data electronic devices), or computing systems that include middleware components (e.g., application electronic devices), or computing systems that include front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0166] Computer systems can include client and electronic devices. Clients and electronic devices are generally geographically separated and typically interact via communication networks. The client-electronic device relationship is created by computer programs running on the respective computers and having a client-electronic device relationship with each other. The electronic device can be a cloud electronic device, also known as a cloud computing electronic device or cloud host, a host product within the cloud computing service system, addressing the shortcomings of traditional physical hosts and VPS services ("Virtual Private Server," or simply "VPS") in terms of management difficulty and weak business scalability. The electronic device can also be an electronic device in a distributed system or an electronic device incorporating blockchain technology. It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this application is achieved, and this is not limited herein.

[0167] 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.

[0168] 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 method for identifying blockages in an infusion tube, characterized in that, The method is applied to an infusion pump, which is equipped with an infusion tubing and a pressure sensor. The method includes: The system acquires a preset infusion tubing consumable coefficient, as well as the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the drug infusion status; the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment; the infusion information includes the infusion rate; and the infusion tubing consumable coefficient is used to indicate the deformation of the infusion tubing. Based on the infusion tubing consumable coefficient and the infusion information, determine the blockage pressure threshold of the infusion tubing at the current moment; If the actual pressure value does not meet the numerical requirement of the blockage pressure threshold of the infusion tube at the current moment, a prompt message indicating blockage of the infusion tube will be issued; wherein, the prompt message is used to remind the user to check the blockage status of the infusion tube.

2. The method according to claim 1, characterized in that, Based on the infusion tubing consumable coefficient and the infusion information, determine the obstruction pressure threshold of the infusion tubing at the current moment, including: Based on the pre-defined correlation between drugs and drug viscosity coefficients, the drug viscosity coefficient corresponding to the infused drug is determined, which is the target viscosity coefficient. Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, the blockage pressure threshold of the infusion tubing at the current moment is determined.

3. The method according to claim 2, characterized in that, Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, determine the blockage pressure threshold of the infusion tubing at the current moment, including: Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, the blockage pressure threshold of the infusion tubing at the current moment is determined using a preset pressure threshold determination algorithm.

4. The method according to claim 3, characterized in that, At the current moment, the occlusion pressure threshold of the infusion tubing is: ； in, The blocking pressure threshold is... The consumable coefficient for the infusion tubing is... denoted as the target viscosity coefficient, and v as the infusion rate.

5. The method according to claim 2, characterized in that, The infusion information also includes the drug infusion time. Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, the occlusion pressure threshold of the infusion tubing at the current moment is determined, including: Based on the infusion time, determine the theoretical pressure value of the infusion tubing at the current moment; Compare the actual pressure value at the current moment with the theoretical pressure value at the current moment; If the actual pressure value at the current moment is not less than the theoretical pressure value at the current moment, then the pressure difference threshold of the infusion tube at the current moment is determined based on the target viscosity coefficient, the infusion tube consumable coefficient, and the infusion rate. Based on the theoretical pressure value and the pressure difference threshold, the blockage pressure threshold of the infusion tube at the current moment is determined.

6. The method according to claim 5, characterized in that, Before obtaining the actual pressure value of the infusion tubing at the current moment, the process also includes: In response to the infusion start command of the infusion pump, the pressure value of the infusion tube at the moment of infusion start is obtained through the pressure sensor, which is the zero-point pressure value.

7. The method according to claim 6, characterized in that, Determining the theoretical pressure value of the infusion tubing at the current moment based on the infusion time includes: Determine the preset pressure change function corresponding to the zero-point pressure value, and the infusion time of the drug at the current moment; Based on the pressure change function, the pressure value corresponding to the infusion time is determined, which is the theoretical pressure value of the infusion tube at the current moment; wherein, the pressure change function is used to represent the change of the obstruction pressure value with the infusion time.

8. The method according to claim 5, characterized in that, Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, determine the pressure difference threshold of the infusion tubing at the current moment, including: Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate at the current moment, a preset pressure difference threshold is used to determine the pressure difference threshold of the infusion tubing at the current moment.

9. The method according to claim 5, characterized in that, The infusion rate is a preset fixed value; Based on the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, determine the pressure difference threshold of the infusion tubing at the current moment, including: The system retrieves a pre-stored pressure difference threshold from the preset drug library, which corresponds to the target viscosity coefficient, the infusion tubing consumable coefficient, and the infusion rate, and sets this threshold as the pressure difference threshold for the infusion tubing at the current moment.

10. The method according to claim 5, characterized in that, Also includes: If the actual pressure value at the current moment is less than the theoretical pressure value at the current moment, then the actual pressure value at the current moment is determined as the new zero-point pressure value. Determine the pressure change function corresponding to the new zero-point pressure value, which is the new pressure change function; Determine the new infusion time at the new current moment, and based on the new pressure change function, determine the pressure value corresponding to the new infusion time, which is the theoretical pressure value of the infusion tube at the new current moment; Continue to compare the real-time determined actual pressure value with the theoretical pressure value.

11. The method according to claim 1, characterized in that, If the actual pressure value does not meet the numerical requirement of the blockage pressure threshold of the infusion tube at the current moment, a warning message indicating blockage of the infusion tube will be issued, including: If the actual pressure value is equal to or greater than the blockage pressure threshold of the infusion tube, a warning message indicating that the infusion tube is blocked will be issued.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: If the actual pressure value of the infusion tubing is within the preset pressure value range, then the infusion rate corresponding to the actual pressure value is determined according to the correlation between the preset pressure value and the infusion rate. The rotational speed of the motor in the infusion pump is adjusted according to the infusion rate corresponding to the actual pressure value.

13. A device for identifying blockages in an infusion tube, characterized in that, The device is used in an infusion pump, which is equipped with an infusion tubing and a pressure sensor. The device includes: The information acquisition module is used to acquire a preset infusion tubing consumable coefficient, and to acquire the actual pressure value of the infusion tubing and the infusion information of the infused drug at the current moment; wherein, the infusion information is used to indicate the drug infusion status; the actual pressure value is used to indicate the obstruction pressure value of the infusion tubing monitored by the pressure sensor at the current moment; the infusion information includes the infusion rate; and the infusion tubing consumable coefficient is used to indicate the deformation of the infusion tubing; The threshold determination module is used to determine the blockage pressure threshold of the infusion tube at the current time based on the infusion tube consumable coefficient and the infusion information. The blockage identification module is used to issue a prompt message indicating that the infusion tube is blocked if the actual pressure value does not meet the blockage pressure threshold requirement of the infusion tube at the current time; wherein the prompt message is used to remind the user to check the blockage status of the infusion tube.

14. An injection pump, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the infusion tube obstruction identification method according to any one of claims 1-12.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method for identifying obstruction of an infusion tube as described in any one of claims 1-12.

16. A computer program product, characterized in that, The method includes a computer program that, when executed by a processor, implements the method for identifying blockages in an infusion tube as described in any one of claims 1-12.

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