Liquid amount monitoring method, device and system, storage medium and program product

Abstract

The invention provides a liquid amount monitoring method, liquid amount monitoring equipment, a liquid amount monitoring system, a readable storage medium and a computer program product.The liquid amount monitoring method comprises the steps that firstly, the liquid amount in a first container used for storing liquid to be poured is monitored, and a first liquid amount is obtained; meanwhile, the liquid amount of a second container used for receiving liquid discharged by the perfused object is monitored to obtain a second liquid amount, then in response to reduction of the first liquid amount, the reduction amount is accumulated to the remaining liquid amount used for representing the perfused liquid remaining in the perfused object, and in response to increase of the second liquid amount, the remaining liquid amount is accumulated to the remaining liquid amount used for representing the perfused liquid remaining in the perfused object. And taking the difference value between the retained liquid amount and the increased liquid amount as a new retained liquid amount, and triggering an alarm when the retained liquid amount is higher than a target threshold value.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical data detection, and particularly relates to a liquid volume monitoring method, a liquid volume monitoring device, a liquid volume monitoring system, a readable storage medium, and a computer program product. Background Art

[0002] During various surgical procedures, liquid perfusion may be performed on the human body. For example, in hysteroscopy surgery, perfusion fluid needs to be injected into the uterine cavity for uterine cavity distension to create a surgical environment. The perfusion volume of the liquid plays a crucial role in the success or failure of the surgery. If too much liquid is perfused into the uterine cavity, the pressure in the uterine cavity will be too high, which may cause damage to the patient's body. Therefore, it is necessary to monitor the liquid volume in the uterine cavity in real time.

[0003] The current monitoring method is mainly manual monitoring. Manual data recording is prone to errors, the accuracy of the monitored liquid volume is low, the monitored data has a lag, and it is difficult to give a timely warning when an accident is about to occur. Summary of the Invention

[0004] The present disclosure provides a liquid volume monitoring method, a liquid volume monitoring device, a liquid volume monitoring system, a readable storage medium, and a computer program product.

[0005] In a first aspect of the present disclosure, a liquid volume monitoring method is proposed, including: monitoring the liquid volume in a first container for storing liquid to be perfused to obtain a first liquid volume, and monitoring the liquid volume in a second container for receiving the liquid discharged from the perfused object to obtain a second liquid volume, where the liquid to be perfused is used to perfuse the perfused object; in response to the decrease in the first liquid volume, accumulating the decrease amount to the retained liquid volume used to represent the retained perfused liquid in the perfused object; in response to the increase in the second liquid volume, taking the difference between the retained liquid volume and the increased liquid volume as the new retained liquid volume; and triggering an alarm when the retained liquid volume is higher than a target threshold.

[0006] According to some embodiments of the present disclosure, taking one or more of the first container and the second container as the container to be measured, the method for monitoring the liquid volume in the container to be measured includes: multiplying the digital quantity fed back by the weighing sensor by a proportionality coefficient, and calculating the liquid volume weight in the container to be measured through the obtained product and the tare weight value; and calculating the liquid volume in the container to be measured based on the obtained liquid volume weight.

[0007] According to some embodiments of the present disclosure, the weighing sensor collects weight data at a specified acquisition period, and calculating the liquid volume in the container to be measured based on the obtained liquid volume weight specifically includes: averaging the liquid volume weights corresponding to a plurality of consecutive weight data in the acquisition time sequence, and taking the obtained average value as the liquid volume in the container to be measured.

[0008] According to some embodiments of the present disclosure, using one or more of the first container and the second container as the container to be measured, the method further includes: in a state where the container to be measured is not loaded, calibrating a weighing sensor for weighing the container to be measured to obtain a tare weight value; and calibrating a range for an object carrying a specified weight to obtain a proportionality coefficient.

[0009] According to some embodiments of the present disclosure, using one or more of the first container and the second container as the container to be measured, and using one or more of the first liquid volume and the second liquid volume as the liquid volume to be measured, the method further includes: for each container to be measured, in response to the range of consecutive multiple liquid volumes to be measured of the container to be measured being not less than a specified threshold, determining the container to be measured as a container to be replaced.

[0010] According to some embodiments of the present disclosure, for each container to be measured, in response to the range of consecutive multiple liquid volumes to be measured of the container to be measured being not less than a specified threshold, determining the container to be measured as a container to be replaced includes: for each container to be measured, in response to obtaining a new liquid volume to be measured, determining the range of a specified number of the latest obtained liquid volumes to be measured; and if the range is not less than the specified threshold, determining the container to be measured as a container to be replaced.

[0011] According to some embodiments of the present disclosure, after determining that the container to be measured is a container to be replaced, the method further includes: in response to the completion of the replacement of the container to be measured, starting to monitor the liquid volume to be measured after a specified time interval.

[0012] According to some embodiments of the present disclosure, the manner of determining the completion of the replacement of the first container is to determine that the monitored first liquid volume is greater than the first liquid volume before replacement or higher than a first specified threshold within a first specified time after determining that the first container is a container to be replaced.

[0013] According to some embodiments of the present disclosure, the manner of determining the completion of the replacement of the second container is to determine that the monitored second liquid volume is less than the second liquid volume before replacement or lower than a second specified threshold within a second specified time after determining that the second container is a container to be replaced.

[0014] According to some embodiments of the present disclosure, the method further includes: displaying the remaining liquid volume in real time.

[0015] A second aspect of the present disclosure provides a liquid volume monitoring device, including: a memory storing execution instructions; and a processor that executes the execution instructions stored in the memory, such that the processor executes the method according to any one of the above embodiments.

[0016] A third aspect of the present disclosure provides a liquid volume monitoring system, which is characterized by including: a first weighing sensor for monitoring the weight of a first container for storing liquid to be perfused; a second weighing sensor for monitoring the weight of a second container for receiving the liquid discharged by the perfused object, where the liquid to be perfused is used to perfuse the perfused object; and a controller configured to perform the following steps: monitoring a first liquid volume in the first container through the weight of the first container, and monitoring a second liquid volume in the second container through the weight of the second container; in response to a decrease in the first liquid volume, accumulating the decrease amount to a retained liquid volume representing the retained perfused liquid in the perfused object; in response to an increase in the second liquid volume, using the difference between the retained liquid volume and the increased liquid volume as a new retained liquid volume; and triggering an alarm when the retained liquid volume is higher than a target threshold.

[0017] A fourth aspect of the present disclosure provides a readable storage medium storing a computer program, which when executed by a processor is used to implement the method described in any of the above embodiments.

[0018] A fifth aspect of the present disclosure provides a computer program product including a computer program, which when executed by a processor is used to implement the method described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0020] Figure 1 FIG. shows a schematic diagram of an application scenario of a liquid volume monitoring method according to some embodiments of the present disclosure.

[0021] Figures 2 - 6 FIG. shows a schematic overall flow diagram of a liquid volume monitoring method M100 according to some embodiments of the present disclosure.

[0022] Figure 7 FIG. shows a schematic timing diagram of a liquid volume monitoring process according to some embodiments of the present disclosure.

[0023] Figure 8 is a schematic block diagram of the structure of a liquid volume monitoring device according to an embodiment of the present disclosure.

[0024] Figure 9 is a schematic block diagram of the structure of a liquid volume monitoring device 1000 according to an embodiment of the present disclosure.

[0025] Figure 10It is a schematic block diagram of a liquid volume monitoring system according to an embodiment of the present disclosure. Detailed Embodiment

[0026] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the sake of description, only parts related to the present disclosure are shown in the drawings.

[0027] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the drawings and embodiments.

[0028] Unless otherwise specified, the exemplary embodiments / examples shown will be understood to provide exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, without departing from the technical concept of the present disclosure, the features of various embodiments / examples can be additionally combined, separated, interchanged, and / or rearranged.

[0029] The terms used herein are for the purpose of describing specific embodiments and are not restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms. In addition, when the terms "comprise" and / or "include" and their variants are used in this specification, it is stated that there are the stated features, wholes, steps, operations, components, assemblies, and / or groups thereof, but it does not exclude the presence or addition of one or more other features, wholes, steps, operations, components, assemblies, and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about", and other similar terms are used as approximate terms rather than degree terms, and thus they are used to explain the inherent deviations of measured values, calculated values, and / or provided values that would be recognized by those of ordinary skill in the art.

[0030] During some surgical procedures, it may be necessary to perfuse a perfusion medium into the human body through a perfusion device. For example, during hysteroscopic surgery, it is necessary to perfuse distending fluid into the uterine cavity to expand the uterine cavity so as to better observe the internal situation of the uterine cavity through the hysteroscope. During the surgery, in order to maintain a clear field of view and operating space, the distending fluid may continuously flow into and out of the uterine cavity, that is, the pressure inside the uterine cavity will change. In order to avoid excessive pressure inside the uterine cavity causing endometrial injury, abdominal pain, or even complications to the patient, it is necessary to calculate the volume of the distending fluid in the uterine cavity, which is usually calculated based on the inflow and outflow of the distending fluid.

[0031] The data of the input volume and the output volume are usually monitored manually. Manually monitored data is prone to omission or recording of incorrect data, and the accuracy of the recorded data may be insufficient, resulting in data errors; the real-time performance of manually recorded data is poor, unable to track liquid changes in real time, lagging behind the actual situation, and unable to give timely warnings when the liquid volume in the uterine cavity is too high.

[0032] For this reason, the present disclosure proposes a liquid volume monitoring method.

[0033] Figure 1 FIG. shows a schematic diagram of an application scenario of the liquid volume monitoring method according to some embodiments of the present disclosure. In this application scenario, it may include a data monitoring device 10, a liquid bag mounting device 20, and a liquid bucket device 30. The liquid bag mounting device 20 may include a liquid bag monitor and a hook for mounting a liquid bag 40. The liquid bag 40 contains the liquid to be perfused. The liquid bucket device 30 may include a liquid bucket and a liquid bucket monitor, and the liquid bucket is used to contain the waste liquid discharged from the patient's body.

[0034] The liquid bag mounting device 20 and the liquid bucket device 30 can communicate with the data monitoring device 10 respectively, so as to send and receive weight data or command. In the present disclosure, the data monitoring device 10 includes at least one processor and at least one memory, and the liquid bag mounting device 20 and the liquid bucket device 30 can each include at least one processor and at least one memory.

[0035] Exemplarily, the liquid bag mounting device 20 can monitor the weight of the liquid bag in real time, the liquid bucket device 30 can monitor the weight of the liquid bucket in real time, and the data monitoring device 10 can calculate the liquid volume of the perfused liquid remaining in the patient's body based on the liquid bag weight and the liquid bucket weight, and display it on the display screen in real time.

[0036] It can be understood that the shapes and structures of the data monitoring device 10, the liquid bag mounting device 20, and the liquid bucket device 30 shown in Figure 1 should not be construed as limiting the protection scope of the present disclosure.

[0037] Figure 2 FIG. shows a schematic diagram of the overall flow of the liquid volume monitoring method M100 according to some embodiments of the present disclosure. As Figure 2 shown, the method includes step S110, step S120, step S130, and step S140. Among them, this method can be executed by a liquid volume monitoring system.

[0038] S110, monitor the liquid volume in the first container for storing the liquid to be perfused to obtain a first liquid volume, and monitor the liquid volume of the second container for receiving the liquid discharged from the perfused object to obtain a second liquid volume. Among them, the liquid to be perfused is used to perfuse the perfused object.

[0039] Taking hysteroscopic surgery as an example, a liquid bag and a liquid bucket can be prepared in advance before the surgery. The liquid bag is the first container, and the liquid bucket is the second container. The liquid bag contains a perfusion medium as the liquid to be perfused, and the perfusion medium can be a uterine distension fluid. The object to be perfused can be a patient. When needed, the doctor can start the perfusion device to input the uterine distension fluid in the liquid bag into the patient's uterine cavity. The doctor can also start the liquid suction device when needed to suck out the waste liquid in the uterine cavity by negative pressure and discharge it into the liquid bucket.

[0040] During the surgery, the liquid bag can be hung on the liquid bag mounting device, and the weight of the liquid bag can be monitored in real time through the liquid bag monitor included in the liquid bag mounting device. The liquid bag monitor can monitor the weight of the liquid bag through devices such as sensors, calculate the liquid volume of the uterine distension fluid in the liquid bag based on the weight of the liquid bag, that is, calculate the first liquid volume, and then send it to the data monitoring device. Or, it can also be that the liquid bag monitor sends the monitored weight of the liquid bag to the data monitoring device, and the data monitoring device calculates the first liquid volume based on the weight of the liquid bag.

[0041] In addition, the liquid bucket can be detachably installed on the liquid bucket device, and the weight of the liquid bucket can be monitored in real time through the liquid bucket monitor included in the liquid bucket device. The liquid volume of the waste liquid discharged from the patient's body can be calculated based on the weight of the liquid bucket, that is, calculate the second liquid volume, and then send it to the data monitoring device. Or, it can also be that the liquid bucket monitor sends the monitored weight of the liquid bucket to the data monitoring device, and the data monitoring device calculates the second liquid volume based on the weight of the liquid bucket.

[0042] It can be understood that since the type of the perfusion medium is known, the liquid volume (mL or L) corresponding to the weight (g or kg) can be calculated through data such as the medium density.

[0043] S120, in response to the decrease in the first liquid volume, accumulate the decrease amount to the retained liquid volume used to represent the retained perfusion liquid in the object to be perfused.

[0044] The retained liquid volume is the liquid volume remaining in the patient's body and not discharged, which can be called the negative deficit amount, that is, the value obtained by subtracting the outflow volume (outflow) of the uterine distension fluid from the total volume (inflow) of the uterine distension fluid used during the current surgery. The retained liquid volume can include the uterine distension fluid in the uterine cavity and can also include the uterine distension fluid absorbed by the human body.

[0045] When the perfusion device perfuses the distending fluid in the fluid bag into the patient's body, the distending fluid in the fluid bag decreases, and the first fluid volume calculated or received by the data monitoring device from the fluid bag monitor will decrease in real time. The reduced part exists in the uterine cavity of the patient (the perfused object), so it will be included in the retained fluid volume. For example, if the first fluid volume drops from A1 milliliters to A2 milliliters within 1 second, the retained fluid volume needs to increase by (A1 - A2) milliliters. In the next second, if the first fluid volume drops from A2 milliliters to A3 milliliters, the retained fluid volume needs to increase by (A2 - A3) milliliters. If the first fluid volume does not change, the retained fluid volume will not increase due to the perfusion of the distending fluid.

[0046] S130. In response to the increase in the second fluid volume, use the difference between the retained fluid volume and the increased fluid volume as the new retained fluid volume.

[0047] When the liquid suction device sucks out the liquid in the uterine cavity and discharges it into the liquid bucket, the retained liquid volume in the uterine cavity decreases, and the waste liquid volume in the liquid bucket increases. The second fluid volume calculated or received by the data monitoring device from the liquid bucket monitor will increase in real time. The increased part is the part sucked out from the patient's body (the perfused object), so it will be subtracted from the retained fluid volume. For example, if the second fluid volume increases from 0 to A4 milliliters within 1 second, the retained fluid volume needs to decrease by A4 milliliters, and the value after decreasing by A4 milliliters is the current retained fluid volume. In the next second, if the second fluid volume increases from A4 milliliters to A5 milliliters, the retained fluid volume needs to decrease by (A5 - A4) milliliters to obtain the new current retained fluid volume. If the second fluid volume does not change, the retained fluid volume will not decrease due to the discharge of the waste liquid.

[0048] It can be understood that step S120 and step S130 can be asynchronous parallel steps, and the triggering of both steps is controlled by the doctor. For example, it is possible that the perfusion device and the liquid suction device operate simultaneously, discharging waste liquid while perfusing the distending fluid.

[0049] S140. Trigger an alarm when the retained fluid volume is higher than the target threshold.

[0050] The target threshold can be set differently according to the patient's age, gender, type of perfusion medium, and type of surgery. For example, the target threshold for an electrolyte perfusion medium can be higher than that for a non - electrolyte perfusion medium. The target threshold can be set to 200 ml, 500 ml, 1000 ml, or other values.

[0051] If the retained liquid volume is higher than the target threshold, it indicates that there is too much distending fluid in the uterine cavity and absorbed by the human body, which may cause damage to the patient's body. Therefore, when the retained liquid volume is higher than the set target threshold, the data monitoring device can give a prompt sound through a buzzer or other means to give an alarm. At the same time, corresponding images or identifiers can be displayed through a touch screen to prompt the doctor in a timely manner, and the doctor can perform the liquid suction operation in a timely manner and stop the perfusion operation in a timely manner.

[0052] The liquid volume monitoring method proposed according to the embodiments of the present disclosure can automatically monitor the liquid volume of the liquid bag and the liquid bucket, calculate and update the retained liquid volume when the liquid volume changes, and timely inform the doctor through an alarm when the retained liquid volume changes to be higher than the set threshold. In this way, the change of the liquid volume can be tracked in real time, ensuring the timeliness of data update and alarm, and improving the safety of the operation; in addition, compared with manually recording data, there will be no omission and no wrong data will be recorded, and the data accuracy can meet the accuracy requirements compared with visual observation.

[0053] Exemplarily, taking one or more of the first container and the second container as the container to be measured, in step S110, the method for monitoring the liquid volume in the container to be measured may include: multiplying the weight data fed back by the weighing sensor by a proportionality coefficient, and calculating the liquid volume weight in the container to be measured through the obtained product and the offset value; and calculating the liquid volume in the container to be measured based on the obtained liquid volume weight. Both the liquid bag (the first container) and the liquid bucket (the second container) are containers to be measured, and asynchronous parallel monitoring can be realized through this monitoring method.

[0054] Figure 3 The overall flowchart of the liquid volume monitoring method M100 according to some other embodiments of the present disclosure is shown. Refer to Figure 3 , step S110 may include the following step S111 and step S112.

[0055] S111, taking the first container and the second container as the containers to be measured, multiplying the digital quantity fed back by the weighing sensor by a proportionality coefficient, and calculating the liquid volume weight in the container to be measured through the obtained product and the tare weight value.

[0056] S112, calculating the liquid volume in the container to be measured based on the obtained liquid volume weight to obtain the first liquid volume and the second liquid volume.

[0057] The liquid bag monitor and the liquid bucket monitor can each be configured with one or more weighing sensors. For example, the weighing sensor of the liquid bag monitor can be set on the mechanical structure between the liquid bag and the liquid bag mounting device to weigh the weight of the liquid bag; the weighing sensor of the liquid bucket monitor can be set under the liquid bucket to weigh the weight of the liquid bag. The weighing sensor can specifically adopt an Hx711 weighing sensor or other models or types of sensors.

[0058] The proportionality coefficient is the rate of change of the digital quantity corresponding to each unit of weight. If the proportionality coefficient is 80, then a change in weight of 1 gram causes a change in the digital quantity by 80 units. After performing A / D conversion on the analog quantity (such as voltage value) collected by the sensor to obtain the digital quantity, it is necessary to further convert the digital quantity through the proportionality coefficient to obtain the weight data of the object to be measured (liquid bag or liquid barrel).

[0059] The obtained weight data includes the weight of non-liquid, that is, it includes the tare weight value. It is necessary to subtract the tare weight value to obtain the net weight of the liquid. For the measurement of the liquid volume of a liquid bag, the tare weight value can include the weights of structures such as hooks and the liquid bag body; for the measurement of the liquid volume of a liquid barrel, the tare weight value can include the weights of structures such as the liquid barrel body. Therefore, the product calculated by the proportionality coefficient can be subtracted by the tare weight value to obtain the weight of the liquid volume, such as obtaining the weight of the liquid volume in the liquid bag and obtaining the weight of the liquid volume in the liquid barrel. Then, the liquid volume corresponding to the weight can be calculated through the known liquid density data.

[0060] It can be understood that the process of the above operation of subtracting the tare weight value and the process of weight-liquid volume conversion can occur in the liquid bag monitor or the liquid barrel monitor, or can occur in the data monitoring device.

[0061] Figure 4 The overall flowchart of the liquid volume monitoring method M100 according to other embodiments of the present disclosure is shown. Refer to Figure 4 , the weighing sensor can collect weight data according to a specified acquisition period. For example, weight data is collected every 100 milliseconds. Correspondingly, in step S112, the method of calculating the liquid volume in the container to be measured based on the obtained liquid volume weight can specifically be: averaging the liquid volume weights corresponding to a plurality of consecutive weight data in the acquisition time sequence, and taking the obtained average value as the liquid volume in the container to be measured.

[0062] Taking the liquid bag as an example, the weighing sensor of the liquid bag monitor collects once every 100 milliseconds. At time q1, 5 weight data are collected. Median value averaging filtering processing is performed on these 5 weight data, that is, the maximum value and the minimum value in these 5 data are removed, and the remaining 3 data are averaged. The obtained average value is used as the liquid volume weight this time, reducing noise interference and improving data accuracy and stability.

[0063] It can be understood that every time a new weight data d1 is collected after 100 ms, the above median value averaging filtering processing can be performed on the latest 5 collected weight data and a liquid volume value can be obtained. Among them, the latest 5 collected weight data include d1 and the 4 weight data collected most recently before d1.

[0064] Exemplarily, taking one or more of the first container and the second container as the container to be measured, the liquid volume monitoring method M100 may further include the following steps: in the state where the container to be measured is not loaded, calibrate the weighing sensor for weighing the container to be measured to obtain the tare weight value; and calibrate the range for an object with a specified weight to obtain the proportionality coefficient.

[0065] For the liquid bag calibration, no heavy object is hung on the liquid bag monitor, and click the button on the touch screen of the data monitoring device to trigger the zero calibration, that is, the tare weight value PeelValue is obtained. Assuming that the maximum capacity of the liquid bag is 5L, an object with a specified weight can use a 1kg weight. After the zero calibration is successful, hang the above weight on the liquid bag mounting device for range calibration to obtain the proportionality coefficient (i.e., the calibration coefficient). Then, a 500g weight can be hung. If the current weight measured is 500g, the liquid bag monitor is successfully calibrated. The calibration of the liquid bucket is the same as the above liquid bag calibration process and will not be elaborated here.

[0066] Figure 5 The overall flow diagram of the liquid volume monitoring method M100 according to some other embodiments of the present disclosure is shown. Refer to Figure 5 taking one or more of the first container and the second container as the container to be measured, and taking one or more of the first liquid volume and the second liquid volume as the liquid volume to be measured, the liquid volume monitoring method M100 may further include the following step S150. Step S150 S150, for each container to be measured, in response to the range of consecutive multiple liquid volumes to be measured of the container to be measured being not less than the specified threshold, determine that the container to be measured is a container to be replaced.

[0067] Taking the liquid bag as an example, during the monitoring process, a calculated first liquid volume can be obtained every 250ms. When the number of the obtained first liquid volumes w10 reaches the specified number (for example, 10), the maximum value and the minimum value will be determined from the 10 first liquid volumes from w1 to w10 through bubble sort or other methods, and then the difference between the maximum value and the minimum value is calculated to obtain the range of w1 to w10. The specified threshold corresponding to the liquid bag replacement is used to measure whether the liquid bag needs to be replaced. The range corresponding to the liquid bag can be set to 500ml or other volumes. If the calculated range is greater than or equal to 500ml, it is determined that the liquid bag is a container to be replaced, that is, the liquid bag needs to be replaced.

[0068] Similarly for the liquid bucket, during the monitoring process, a calculated second liquid volume can be obtained every 250 ms. When the number of the obtained second liquid volumes e10 reaches a specified number (for example, 10), the range will be determined from the 10 first liquid volumes from e1 to e10. The specified threshold corresponding to the replacement of the liquid bucket is used to measure whether the liquid bucket needs to be replaced. The range corresponding to the liquid bucket can be set to half of the maximum volume of the liquid bucket or other volumes. If the calculated range is greater than or equal to half of the maximum volume of the liquid bucket, it is determined that the liquid bucket is a container to be replaced, that is, the liquid bucket needs to be replaced.

[0069] It can be understood that the replacement detection of the liquid bag and the replacement detection of the liquid bucket can be executed asynchronously. For example, it may be detected simultaneously that both the liquid bag and the liquid bucket need to be replaced.

[0070] Figure 6 The overall flowchart of the liquid volume monitoring method M100 according to some other embodiments of the present disclosure is shown. Refer to Figure 6 The above step S150 may specifically include the following steps S151 and S152.

[0071] S151, for each container to be measured, in response to obtaining a new liquid volume to be measured, determine the range of the specified number of the latest obtained liquid volumes to be measured.

[0072] S152, if the range is not less than the specified threshold, determine that the container to be measured is a container to be replaced.

[0073] When the number of the obtained first liquid volumes reaches, for example, 10 or other specified numbers, every time a new first liquid volume is obtained, the range can be calculated once and an identification of whether the liquid bag needs to be replaced can be performed. For example, when w11 is obtained, the latest 10 liquid volumes to be measured (including the latest calculated 1 first liquid volume and the latest 9 first liquid volumes calculated previously) are w2 to w11. The range can be calculated for the 10 first liquid volumes from w2 to w11, and then it is judged whether the range is greater than or equal to 500 ml. It is equivalent to making a judgment of whether to replace every 250 ms. The judgment of replacing the liquid bucket is the same.

[0074] It can be understood that step S151 can also be that, for each container to be measured, in response to obtaining the specified number of liquid volumes to be measured in sequence, determine the range of these specified number of liquid volumes to be measured, and use the next obtained liquid volume to be measured as the first obtained liquid volume to be measured when determining the range next time. For example, when w1 to w10 are obtained in sequence, w1 to w10 are used to determine the range for the first time. Then until w20 is obtained, w11 to w20 are used to determine the range for the second time.

[0075] Refer to Figure 5, after determining that the container to be measured is a container to be replaced (step S150), step S160 can also be executed.

[0076] S160, in response to the completion of the replacement of the container to be measured, start monitoring the amount of liquid to be measured after a specified time interval. That is to say, after the liquid bag is replaced, the first specified time (for example, 2 seconds) can be waited first, and then the monitoring of the first liquid amount can be started. After the liquid bucket is replaced, the second specified time (for example, 6 seconds) can be waited first, and then the monitoring of the second liquid amount can be started.

[0077] For the liquid bag, the method of determining the completion of the replacement of the first container can be that within the first specified time after determining that the first container is a container to be replaced, it is determined that the monitored first liquid amount is greater than the first liquid amount before replacement or higher than the first specified threshold. For example, when it is determined that the liquid bag needs to be replaced, continue to monitor the first liquid amount or the weight of the first container, and then compare it with the latest monitored first liquid amount or the weight of the first container before replacement. If the newly monitored first liquid amount is greater than the first liquid amount before replacement, or the newly monitored weight of the first container is greater than the weight of the first container before replacement, it means that the liquid bag has become heavier, that is, the liquid bag has been replaced with a new liquid bag (for example, a full liquid bag).

[0078] For the liquid bucket, the method of determining the completion of the replacement of the second container can be that within the second specified time after determining that the second container is a container to be replaced, it is determined that the monitored second liquid amount is less than the second liquid amount before replacement or lower than the second specified threshold. For example, when it is determined that the liquid bucket needs to be replaced, continue to monitor the second liquid amount or the weight of the second container, and then compare it with the latest monitored second liquid amount or the weight of the second container before replacement. If the newly monitored second liquid amount is less than the second liquid amount before replacement, or the newly monitored weight of the second container is less than the weight of the second container before replacement, it means that the liquid bucket has become lighter, that is, the liquid bucket has been replaced with a new liquid bucket (for example, an empty bucket).

[0079] The liquid amount monitoring method M100 can also include the following steps: display the remaining liquid amount in real time. For example, the current remaining liquid amount can be displayed in real time through the touch screen of the data monitoring device, and an alarm can be issued when the remaining liquid amount reaches the target threshold (warning value).

[0080] In the process of determining whether there is a container to be replaced in the container to be tested (step S150), if the range of the liquid bag is less than 500 ml, it is determined that the liquid bag does not need to be replaced. At this time, the currently latest calculated remaining liquid volume can be temporarily stored, and the current first liquid volume of the liquid bag can be temporarily stored. After the irrigation device perfuses the expansion liquid in the liquid bag into the uterine cavity later, if it is determined through step S150 that the range of the liquid bag is greater than 500 ml, that is, the liquid bag needs to be replaced, then after the liquid bag replacement is completed, the remaining liquid volume before replacement can be added to the cumulative remaining liquid volume to update the remaining liquid volume. After the liquid bag replacement is completed, it is also possible to wait for 4 seconds and then clear the liquid bag, and then wait for another 2 seconds and then start monitoring the first liquid volume. The same can be applied to the liquid bucket, which will not be elaborated here.

[0081] Figure 7 The timing diagram of the liquid volume monitoring process of some embodiments of the present disclosure is shown. Refer to Figure 7 , the moment T0 is the start moment of the operation. At this time, the liquid bag is a newly mounted liquid bag. The first liquid volume of the liquid bag is detected by the weighing sensor to be 500 ml, and the second liquid volume of the liquid bucket is 0. At this time, the irrigation device and the liquid suction device have not been started yet, so the first liquid volume and the second liquid volume have not changed, and the negative balance (remaining liquid volume) is 0.

[0082] Within one minute after the moment T0, due to doctor's operation or equipment reasons, the first liquid volume decreases slowly. At the moment T1, one minute after the moment T0, it drops from 500 ml to 480 ml, a total drop of 20 ml. Since the second liquid volume has not changed, the negative balance rises to 20 ml.

[0083] At the moment T1, the irrigation device is started and the first liquid filling begins. Liquid is injected into the patient's uterine cavity, and the detected value of the first liquid volume drops rapidly. At the moment T2, one minute after the moment T0, it drops from 480 ml to 100 ml. Since the second liquid volume has not changed, the negative balance at the moment T2 rises to 400 ml.

[0084] During the period from the moment T1 to the moment T2, the range of a continuous plurality of monitoring values of the first liquid volume within a certain period of time is greater than the corresponding threshold (for example, 300 ml), indicating that the first liquid volume drops by 300 ml during a certain period of this period. Therefore, it is determined that the liquid bag needs to be replaced. Therefore, the liquid bag replacement starts at the moment T2. After 20 seconds, the moment T3 is reached. At this time, the liquid bag replacement is completed, so the first liquid volume detected by the weighing sensor becomes 500 ml. At this time, the first liquid volume is reset to 500 ml, the second liquid volume is 0, and the negative balance is 400 ml.

[0085] After a period of surgical operation, the time point T4 is reached. During this period, neither the perfusion device nor the liquid suction device is started, so the first liquid volume, the second liquid volume, and the negative deficit volume remain unchanged. At time point T4, the liquid suction device is started, and the first liquid drainage begins. The waste liquid in the uterine cavity is sucked out and discharged into the liquid bucket, and the monitored value of the second liquid volume starts to increase. After 30 seconds, the time point T5 is reached. At this time, 200 ml of waste liquid is sucked out, the second liquid volume is 200 ml, and the negative deficit volume is 400 - 200 = 200 ml.

[0086] At time point T5, the perfusion device is started, and at the same time, the liquid suction device remains started, and secondary perfusion is started while draining. After one minute, the time point T6 is reached. At this time, the first liquid volume drops to 100 ml again, that is, 400 ml is infused, and the second liquid volume continues to rise to 400 ml, that is, 200 ml is drained. Then the negative deficit volume is 200 + (400 - 200) = 400 ml. And at this time, the liquid bag needs to be replaced again.

[0087] After another period of surgical operation and secondary replacement of the liquid bag, and then perfusion and liquid suction operations, the time point T7 is reached. At this time, after the secondary replacement of the liquid bag, the first liquid volume drops to 200 ml, the second liquid volume rises to 700 ml, and the negative deficit volume is 400 ml. Since the range of consecutive multiple monitored values of the second liquid volume within a certain period of time is greater than the corresponding threshold (for example, 300 ml), it indicates that the second liquid volume has increased by 300 ml during a certain period of this time. Therefore, it is determined that the liquid bucket needs to be replaced. So the liquid bucket replacement starts at time point T7.

[0088] After 10 seconds, the time point T8 is reached. At this time, the liquid bucket replacement is completed. Before the liquid bucket replacement, the perfusion device continues to infuse 100 ml. At this time, the first liquid volume drops to 100 ml for the third time. Since the liquid bucket has been replaced, the second liquid volume is reset to 0, and the negative deficit volume reaches 400 + 100 = 500 ml. The negative deficit volume reaches the preset warning value at this time, so the data monitoring device starts to alarm.

[0089] After the doctor hears the alarm sound, the liquid suction device is operated to suck the liquid. After 20 seconds, at time point T10, a total of 150 ml of waste liquid is sucked out. At this time, the second liquid volume rises from 0 to 150 ml. Since the fourth replacement of the liquid bag has not been carried out yet, the first liquid volume remains 100 ml, and the negative deficit volume drops to 500 - 150 = 350 ml, and the alarm is eliminated.

[0090] Based on any one of the above embodiments, the present disclosure also provides a liquid volume monitoring device. Figure 8 It is a structural schematic block diagram of the liquid volume monitoring device according to an embodiment of the present disclosure. As Figure 8 shown, the liquid volume monitoring device includes: a first monitoring module 110, a second monitoring module 120, a liquid volume determination module 130, and an alarm module 140.

[0091] The first monitoring module 110 is configured to monitor the liquid volume in the first container for storing the liquid to be perfused to obtain the first liquid volume. Specifically, the first monitoring module 110 may include a weighing sensor, and the first liquid volume is monitored based on the weight data fed back by the weighing sensor.

[0092] The second monitoring module 120 is configured to monitor the liquid volume in the second container for receiving the liquid discharged by the object to be perfused to obtain the second liquid volume. Wherein, the liquid to be perfused is used for perfusing the object to be perfused. Specifically, the second monitoring module 120 may include a weighing sensor, and the second liquid volume is monitored based on the weight data fed back by the weighing sensor.

[0093] The liquid volume determination module 130 is configured to, in response to the decrease of the first liquid volume, accumulate the decreased amount to the retained liquid volume representing the liquid to be perfused retained in the object to be perfused, and in response to the increase of the second liquid volume, use the difference between the retained liquid volume and the increased liquid volume as the new retained liquid volume.

[0094] The alarm module 140 is configured to trigger an alarm when the retained liquid volume is higher than the target threshold. Specifically, the alarm module 140 may include a buzzer, and the alarm is carried out through the buzzer.

[0095] Some function implementations of the above liquid volume monitoring device may be in the form of computer software, and some function implementations of each module of the above liquid volume monitoring device may be implemented by computer software modules. For the specific implementation processes of the functions and roles of each module in the above device, please refer to the implementation processes of the corresponding steps in the above method, which will not be elaborated here.

[0096] The execution subject of the liquid volume monitoring method in the specific implementation manners of the present disclosure may be an electronic device such as a computer or a monitor. Therefore, based on any of the above embodiments, the present disclosure further provides a liquid volume monitoring device, and this liquid volume monitoring device can execute the liquid volume monitoring method of any of the above embodiments described in the present disclosure. Figure 9 It is a structural schematic diagram of a liquid volume monitoring device 1000 according to an embodiment of the present disclosure. The hardware structure of the liquid volume monitoring device 1000 can be implemented using a bus architecture. The bus architecture may include any number of interconnected buses and bridges, depending on the specific application of the hardware and the overall design constraints. The bus 1100 connects various circuits including one or more processors 1200, a memory 1300, a screen 1500, and / or hardware modules together. The bus 1100 may also connect various other circuits 1400 such as peripheral devices, voltage regulators, power management circuits, external antennas, etc. Wherein, the screen 1500 may be a touch screen.

[0097] The bus 1100 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one connection line is used in this figure, but it does not mean that there is only one bus or one type of bus.

[0098] Among them, the processor 1200 can be a Central Processing Unit (CPU). The processor 1200 can also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. chips, or combinations of the above types of chips.

[0099] The memory 1300 can be used as a non-transitory computer-readable storage medium, and can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions of the computer program in the embodiments of the present disclosure. The processor 1200 realizes the liquid volume monitoring method by running the non-transitory software programs, instructions, and modules stored in the memory 1300. The memory 1300 can include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created by the processor 1200. In addition, the memory 1300 can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 1300 optionally includes a memory remotely set relative to the processor 1200, and these remote memories can be connected to the processor 1200 through a network. Examples of the above networks include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0100] The present disclosure also provides a liquid volume monitoring system. Figure 10 It is a structural schematic diagram of a liquid volume monitoring system according to an embodiment of the present disclosure. As Figure 10As shown, the liquid volume monitoring system includes: a first weighing sensor 201, a second weighing sensor 202, and a controller 203.

[0101] The first weighing sensor 201 monitors the weight of a first container for storing the liquid to be perfused. The second weighing sensor 202 monitors the weight of a second container for receiving the liquid discharged by the object to be perfused, and the liquid to be perfused is used for perfusing the object to be perfused. Among them, both the first weighing sensor 201 and the second weighing sensor 202 can adopt Hx711 weighing sensors.

[0102] The controller 203 is configured to perform the following steps: monitor the first liquid volume in the first container through the weight of the first container, and monitor the second liquid volume in the second container through the weight of the second container; in response to the decrease in the first liquid volume, accumulate the reduction amount to the retained liquid volume used to represent the retained perfused liquid in the object to be perfused; in response to the increase in the second liquid volume, use the difference between the retained liquid volume and the increased liquid volume as the new retained liquid volume; and trigger an alarm when the retained liquid volume is higher than the target threshold. Among them, the controller 203 can specifically adopt a microcontroller (MCU) of the STM32F407 model.

[0103] In addition, the liquid volume monitoring system may further include a memory 204, a touch screen 205, a buzzer 206, and a power supply 207. The memory 204 is used to store data such as the data collected by the first weighing sensor 201 and the first weighing sensor 201, the liquid volume data generated by the controller 203, and the instructions that the controller 203 can send. The touch screen 205 is used to receive user operations to trigger the controller 203 to perform corresponding actions, such as operations for calibrating the weighing sensor. The buzzer 206 is used to give an alarm by emitting a prompt sound. The power supply 207 is used to supply power to the controller 203, the memory 204, the touch screen 205, and the buzzer 206.

[0104] The present disclosure also provides a readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, it is used to implement the above method. The "readable storage medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples of the readable storage medium include the following: an electrical connection part (electronic device) having one or more wirings, a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable read-only memory (CDROM), etc.

[0105] The present disclosure also provides a computer program product. The method of the present disclosure can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed, the processes or functions of the present disclosure are executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, a core network device, an OAM, or other programmable devices.

[0106] The computer program or instructions can be stored in a readable storage medium, or transmitted from one readable storage medium to another. For example, the computer program or instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The readable storage medium can be any available medium that can be accessed, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it can also be an optical medium, such as a digital video disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile types of storage media.

[0107] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0108] The present disclosure is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and the combination of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0109] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more processes and / or blocks Figure 1 in the process Figure 1 or processes and / or blocks

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are executed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions for implementing the functions specified in one or more processes and / or blocks Figure 1 in the process Figure 1 or processes and / or blocks

[0111] In the description of this specification, the descriptions referring to the terms "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples", etc. mean that the specific features, structures, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples

[0112] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined

[0113] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and not for limiting the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure

Claims

1. A liquid volume monitoring method, characterized in that: include: Monitoring the liquid volume in a first container for storing liquid to be poured to obtain a first liquid volume, and monitoring the liquid volume in a second container for receiving liquid discharged from a poured object to obtain a second liquid volume, wherein the liquid to be poured is poured into the poured object; In response to the first liquid volume being reduced, accumulating the reduced amount to a retained liquid volume representing the perfused liquid retained in the perfused object; In response to the increase of the second liquid volume, taking the difference between the retained liquid volume and the increased liquid volume as a new retained liquid volume; as well as An alarm is triggered when the retained fluid volume is higher than a target threshold.

2. The liquid volume monitoring method according to claim 1, characterized in that: Taking one or more of the first container and the second container as the container to be tested, the method of monitoring the liquid amount in the container to be tested includes: Multiplying the digital quantity fed back by the weighing sensor by the proportional coefficient, and calculating the weight of the liquid in the container to be tested by the obtained product and the tare value; and The amount of liquid in the container to be measured is calculated based on the obtained liquid weight.

3. The liquid volume monitoring method according to claim 2, characterized in that: The weighing sensor collects weight data according to a specified collection period, and the amount of liquid in the container to be tested is calculated based on the obtained liquid weight: The weights of the liquid volumes corresponding to a plurality of continuous weight data in the acquisition sequence are averaged, and the obtained average value is used as the liquid volume in the container to be tested.

4. The liquid volume monitoring method according to claim 2, characterized in that: Taking one or more of the first container and the second container as containers to be tested, the method further includes: In a state where the container to be tested is not loaded, calibrating a weighing sensor for weighing the container to be tested to obtain a tare value; and The scale factor is obtained by calibrating the range with an object of specified weight.

5. The liquid volume monitoring method according to claim 1 or 2, characterized in that: One or more of the first container and the second container are used as containers to be tested, and one or more of the first liquid volume and the second liquid volume are used as liquid volumes to be tested, and the method further includes: For each of the containers to be tested, in response to a range difference of a plurality of consecutive amounts of the liquid to be tested of the container to be tested being not less than a specified threshold, the container to be tested is determined to be a container to be replaced.

6. The liquid volume monitoring method according to claim 5, characterized in that: For each of the containers to be tested, in response to the range of a plurality of consecutive amounts of the liquid to be tested of the container to be tested being not less than a specified threshold, determining that the container to be tested is a container to be replaced includes: For each of the containers to be tested, in response to obtaining a new amount of the liquid to be tested, determining a range of the latest obtained specified number of amounts of the liquid to be tested; and If the range is not less than a specified threshold, determining that the container to be tested is a container to be replaced; Optionally, after determining that the container to be tested is a container to be replaced, the method further includes: In response to the completion of the replacement of the container to be tested, starting to monitor the amount of the liquid to be tested after a specified time interval; Optionally, the method of determining that the replacement of the first container is completed is to determine that the monitored first liquid volume is greater than the first liquid volume before replacement or higher than a first specified threshold within a first specified time period after the first container is determined to be the container to be replaced; Optionally, the method of determining that the replacement of the second container is completed is to determine that the monitored second liquid volume is less than the second liquid volume before replacement or lower than a second specified threshold within a second specified time period after the second container is determined to be the container to be replaced; Optionally, the method further comprises: The retained liquid volume is displayed in real time.

7. A liquid volume monitoring device, characterized in that: include: A memory storing execution instructions; as well as A processor, wherein the processor executes the execution instructions stored in the memory, so that the processor executes the method according to any one of claims 1 to 6.

8. A liquid volume monitoring system, characterized in that: include: a first load cell that monitors the weight of a first container for storing a liquid to be poured; a second weighing sensor, the second weighing sensor monitoring the weight of a second container for receiving liquid discharged from the object to be perfused, the liquid to be perfused being used to perfuse into the object to be perfused; as well as A controller that performs the following steps: Monitoring the liquid volume in the first container by the weight of the first container to obtain a first liquid volume, and monitoring the liquid volume in the second container by the weight of the second container to obtain a second liquid volume; In response to the first liquid volume being reduced, accumulating the reduced amount to a retained liquid volume representing the perfused liquid retained in the perfused object; In response to the increase of the second liquid volume, taking the difference between the retained liquid volume and the increased liquid volume as a new retained liquid volume; as well as An alarm is triggered when the retained fluid volume is higher than a target threshold.

9. A readable storage medium, characterized in that: The readable storage medium stores a computer program, and when the computer program is executed by a processor, it is used to implement the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the computer program is used to implement the method according to any one of claims 1 to 6.

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