Reference adjustment voltage acquisition method, gain adjustment method and related equipment

Abstract

The present invention relates to the technical field of insufflator, and specifically discloses a reference regulating voltage obtaining method, a gain regulating method and related equipment, wherein the reference regulating voltage obtaining method comprises the steps of: obtaining at least one output flow and a corresponding sensor voltage of the insufflator based on a flowmeter; obtaining a gain coefficient according to the output flow and the corresponding sensor voltage and a pre-acquired reference fitting curve calculation; obtaining a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve; obtaining a reference regulating voltage value according to the reference regulating flow and the flow curve calculation; the method obtains a reference regulating voltage value associated with a reference regulating flow based on the flow curve, realizes pre-calibration of the reference regulating voltage value, so that the insufflator can call a suitable reference regulating voltage value as a sensor voltage adjustment index during flow regulation and voltage stabilization to ensure the timeliness and accuracy of flow regulation and voltage stabilization.

Description

Technical Field

[0001] The present application relates to the technical field of pneumoperitoneum machines, and in particular to a reference regulation voltage acquisition method, a gain regulation method and related equipment. Background Art

[0002] In pneumoperitoneum technology, precise flow control is crucial to surgical safety. Different flow rates need to be set for adults and children due to differences in abdominal space.

[0003] In the related art, the insufflator relies on flow sensors to monitor flow, but the precise conversion relationship between the sensor voltage obtained by the sensor and the actual flow is difficult to establish stably, especially in the commonly used bypass monitoring method. The insufflator generally converts the sensor voltage generated by the sensor into flow data for monitoring and flow control. In this process, the insufflator often has significant flow errors due to the superposition of bypass structure design tolerance and sensor error. Especially when the flow magnitudes do not match, the error is likely to increase exponentially, resulting in the output flow data being unable to truly reflect the actual flow state of the insufflator, affecting the actual regulation and voltage stabilization of the flow, and seriously affecting the accuracy of surgical operations and patient safety. The method of regulation based on flow data will also increase the lag of flow regulation to a certain extent.

[0004] There is currently no effective technical solution to the above problems. Summary of the invention

[0005] The purpose of this application is to provide a reference regulation voltage acquisition method, a gain regulation method and related equipment to ensure the timeliness and accuracy of flow control.

[0006] In a first aspect, the present application provides a reference adjustment voltage acquisition method, which is applied to the output adjustment of the pneumoperitoneum machine, wherein the output gas circuit of the pneumoperitoneum machine includes multiple bypasses, wherein a flow sensor is provided in one of the bypasses, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage, and the reference adjustment voltage acquisition method includes the following steps:

[0007] Acquire at least one output flow rate of the pneumoperitoneum machine and a corresponding sensor voltage based on the flow meter;

[0008] A gain coefficient is calculated based on the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, wherein the reference fitting curve is a curve of the change of the gas flow rate output by the reference insufflator with respect to the sensor voltage;

[0009] Acquire a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, wherein the flow curve is a curve of the output flow of the output gas circuit of the insufflator with respect to the sensor voltage;

[0010] The reference regulating voltage value is obtained by calculation according to the reference regulating flow and the flow curve.

[0011] The reference regulation voltage acquisition method of the present application combines the actually collected output flow of the insufflator and the corresponding sensor voltage to compare the difference between the reference fitting curve and the output flow of the output gas circuit of the insufflator to obtain a gain coefficient, and uses the gain coefficient to correct the reference fitting curve to reconstruct a flow curve that can accurately characterize the mapping relationship between the output flow of the insufflator and the sensor voltage, and then obtains a reference regulation voltage value associated with the reference regulation flow based on the flow curve, thereby pre-calibrating the reference regulation voltage value, so that the insufflator can call a suitable reference regulation voltage value as a regulation indicator of the sensor voltage during the flow control and voltage stabilization process to ensure the timeliness and accuracy of flow control and voltage stabilization.

[0012] The method for obtaining the reference regulating voltage, wherein the process of obtaining the reference fitting curve comprises:

[0013] Obtaining a sensor voltage induced by a flow sensor in the reference insufflator at different gas flow rates;

[0014] Different gas flow rates and corresponding sensor voltages are fitted based on a cubic function to obtain the reference fitting curve.

[0015] The steps of this example are to obtain an accurate baseline fitting curve through single or multiple experimental measurements, which can accurately reflect the curve relationship between the output flow rate flowing through the flow sensor in the reference insufflator and the sensor voltage generated by the flow sensor, and can serve as the basis for calculating the flow curves of different subsequent insufflators.

[0016] The method for obtaining the reference regulating voltage, wherein the step of calculating and obtaining the gain coefficient according to the output flow rate and the corresponding sensor voltage and the pre-acquired reference fitting curve comprises:

[0017] Substituting the sensor voltage corresponding to the output flow into the reference fitting curve to obtain an estimated flow;

[0018] The gain coefficient is calculated based on the ratio of the output flow rate to the estimated flow rate.

[0019] In this example, the flow curve determined based on the gain coefficient can accurately reflect the mapping relationship between the output flow of the currently used pneumoperitoneum machine and the sensor voltage. Step S4 substitutes the reference adjustment flow into Y to calculate the corresponding sensor voltage as the reference adjustment voltage value.

[0020] In the method for obtaining the reference regulating voltage, wherein the reference regulating flow rate is multiple, the step of calculating and obtaining the reference regulating voltage value according to the reference regulating flow rate and the flow curve comprises:

[0021] The reference adjustment voltage values ​​corresponding to a plurality of reference adjustment flow rates are respectively calculated and obtained according to the flow curve to establish a reference sensor voltage value table.

[0022] The method for obtaining the reference regulating voltage, wherein the step of respectively calculating and obtaining the reference regulating voltage values ​​corresponding to the plurality of reference regulating flow rates according to the flow curve comprises:

[0023] Convert the flow curve into a cubic equation with a single variable to solve for the sensor voltage;

[0024] Substitute the multiple reference adjustment flow rates into the cubic equation to obtain corresponding real roots, so as to obtain corresponding reference adjustment voltage values.

[0025] In a second aspect, the present application further provides a gain adjustment method, which is applied in the output adjustment of the pneumoperitoneum machine, and the gain adjustment method comprises the following steps:

[0026] Acquire a reference sensor voltage value table, wherein the reference sensor voltage value table includes a plurality of reference regulating voltage values ​​corresponding to different reference regulating flow rates, and the reference regulating voltage values ​​are calculated and acquired based on the reference regulating voltage acquisition method provided in the first aspect;

[0027] Extracting a corresponding reference adjustment voltage value from the reference sensor voltage value table as a target voltage value according to the target flow rate;

[0028] The output flow of the pneumoperitoneum machine is adjusted according to the target voltage value.

[0029] The gain adjustment method of the present application obtains a reference sensor voltage value table containing multiple reference adjustment voltage values ​​associated with a reference adjustment flow based on the reference adjustment voltage acquisition method provided in the first aspect, so as to call the reference adjustment voltage value corresponding to the target flow input by the user to realize flow control and voltage stabilization, which can effectively ensure the accuracy and timeliness of the pneumoperitoneum machine during the flow control and voltage stabilization process.

[0030] In a third aspect, the present application further provides a reference adjustment voltage acquisition device, which is used in the output adjustment of the pneumoperitoneum machine, wherein the output gas circuit of the pneumoperitoneum machine includes multiple bypasses, wherein a flow sensor is provided in one of the bypasses, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage, and the reference adjustment voltage acquisition device includes:

[0031] A first acquisition module, configured to acquire at least one output flow rate of the pneumoperitoneum machine and a corresponding sensor voltage based on a flow meter;

[0032] A second acquisition module, used for calculating and acquiring a gain coefficient according to the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, wherein the reference fitting curve is a curve of a change in the gas flow rate output by a reference insufflator with respect to the sensor voltage;

[0033] A third acquisition module is used to acquire a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, wherein the flow curve is a curve of the output flow of the output gas circuit of the insufflator with respect to the sensor voltage;

[0034] The calculation module is used to calculate and obtain a reference regulation voltage value according to a reference regulation flow and the flow curve.

[0035] The reference regulation voltage acquisition device of the present application combines the actually collected output flow of the insufflator and the corresponding sensor voltage to compare the difference between the reference fitting curve and the output flow of the output gas circuit of the insufflator to obtain a gain coefficient, and uses the gain coefficient to correct the reference fitting curve to reconstruct a flow curve that can accurately characterize the mapping relationship between the output flow of the insufflator and the sensor voltage, and then obtains the reference regulation voltage value associated with the reference regulation flow based on the flow curve, thereby pre-calibrating the reference regulation voltage value, so that the insufflator can call the appropriate reference regulation voltage value as the sensor voltage regulation indicator during the flow control and voltage stabilization process to ensure the timeliness and accuracy of flow control and voltage stabilization.

[0036] In a fourth aspect, the present application further provides a gain adjustment device, which is used in the output adjustment of the pneumoperitoneum machine, and the gain adjustment device includes:

[0037] a fourth acquisition module, configured to acquire a reference sensor voltage value table, wherein the reference sensor voltage value table includes a plurality of reference regulating voltage values ​​corresponding to different reference regulating flow rates, and wherein the reference regulating voltage values ​​are calculated and acquired based on the reference regulating voltage acquisition method provided in the first aspect;

[0038] An extraction module, used for extracting a corresponding reference adjustment voltage value from the reference sensor voltage value table as a target voltage value according to a target flow rate;

[0039] A regulating module is used to regulate the output flow of the pneumoperitoneum machine according to the target voltage value.

[0040] The gain adjustment device of the present application obtains a reference sensor voltage value table containing multiple reference adjustment voltage values ​​associated with a reference adjustment flow based on the reference adjustment voltage acquisition method provided in the first aspect, so as to call the reference adjustment voltage value corresponding to the target flow input by the user to realize flow control and voltage stabilization, which can effectively ensure the accuracy and timeliness of the pneumoperitoneum machine during the flow control and voltage stabilization process.

[0041] In a fifth aspect, the present application also provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect or the second aspect are executed.

[0042] In a sixth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method provided in the first aspect or the second aspect are performed.

[0043] From the above, it can be seen that the present application provides a reference regulation voltage acquisition method, a gain adjustment method and related equipment, wherein the reference regulation voltage acquisition method combines the output flow of the insufflator actually collected and the corresponding sensor voltage to compare the difference between the reference fitting curve and the output flow of the output gas circuit of the insufflator to obtain a gain coefficient, and uses the gain coefficient to correct the reference fitting curve to reconstruct a flow curve that can accurately characterize the mapping relationship between the output flow of the insufflator and the sensor voltage, and then obtains a reference regulation voltage value associated with the reference regulation flow based on the flow curve, thereby realizing pre-calibration of the reference regulation voltage value, so that the insufflator can call a suitable reference regulation voltage value as the sensor voltage adjustment indicator during the flow control and voltage stabilization process to ensure the timeliness and accuracy of flow control and voltage stabilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A flowchart of a method for obtaining a reference regulation voltage provided in an embodiment of the present application.

[0045] Figure 2 A flow chart of a gain adjustment method provided in an embodiment of the present application.

[0046] Figure 3 A schematic diagram of the structure of a reference regulation voltage acquisition device provided in an embodiment of the present application.

[0047] Figure 4 A schematic diagram of the structure of a gain adjustment device provided in an embodiment of the present application.

[0048] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0049] Figure numerals: 301, first acquisition module; 302, second acquisition module; 303, third acquisition module; 304, calculation module; 401, fourth acquisition module; 402, extraction module; 403, adjustment module; 501, processor; 502, memory; 503, communication bus. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0051] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] First, please refer to Figure 1 Some embodiments of the present application provide a reference adjustment voltage acquisition method, which is applied to the output adjustment of the pneumoperitoneum machine. The output gas circuit of the pneumoperitoneum machine includes multiple bypasses, one of which is provided with a flow sensor, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage. The reference adjustment voltage acquisition method includes the following steps:

[0053] S1. Obtaining at least one output flow rate of the pneumoperitoneum machine and a corresponding sensor voltage based on a flow meter;

[0054] S2. Calculate and obtain a gain coefficient according to the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, where the reference fitting curve is a curve of the change of the gas flow rate output by the reference insufflator with respect to the sensor voltage;

[0055] S3, obtaining a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, where the flow curve is a curve of the output flow of the output gas path of the insufflator with respect to the sensor voltage;

[0056] S4. Calculate and obtain a reference regulating voltage value according to the reference regulating flow and the flow curve.

[0057] Specifically, the reference fitting curve pre-acquired in step S2 is equivalent to obtaining a calibration curve of the flow sensor based on a reference insufflator. When the airflow passes through the flow sensor, the flow sensor can generate a corresponding sensor voltage according to the flow rate of the airflow. The reference fitting curve reflects the mapping relationship between the flow rate and the sensor voltage in the reference insufflator, wherein the reference insufflator is an arbitrarily selected insufflator, which is used to extract the reference fitting curve as the calculation basis for the flow curves of other insufflators, and its reference fitting curve can be obtained by measurement and calculation. Taking into account the tolerance of the output gas path of the insufflator, there are certain differences in the airflow flow rates between different bypasses, and the differences between different insufflators are more obvious, resulting in a certain deviation in the mapping relationship between the output flow of different insufflators and the sensor voltage, which in turn affects It affects the establishment and pressure stabilization of pneumoperitoneum; in actual operation, the pneumoperitoneum machine has high real-time requirements for pressure stabilization control. Therefore, in the process of flow regulation and voltage stabilization, in an embodiment of the present application, the pneumoperitoneum machine converts the input flow data into the sensor voltage that needs to be adjusted, so as to perform flow regulation and voltage stabilization based on the sensor voltage, thereby reducing the delay caused by data conversion in the process of flow regulation and voltage stabilization; therefore, the reference regulation voltage acquisition method of an embodiment of the present application aims to eliminate the tolerance of the output gas circuit of the pneumoperitoneum machine through curve reconstruction, so as to obtain a reference regulation voltage value associated with a reference regulation flow, and realize pre-calibration of the reference regulation voltage value, so that the pneumoperitoneum machine can call a suitable reference regulation voltage value as a regulation indicator of the sensor voltage during the process of flow regulation and voltage stabilization to ensure the timeliness of flow regulation and voltage stabilization.

[0058] More specifically, steps S1 to S3 are used to eliminate the tolerance of the output gas circuit of the insufflator and obtain a flow curve that matches the insufflator currently in use, so as to accurately characterize the mapping relationship between the output flow of the corresponding output gas circuit and the sensor voltage; wherein, step S1 can be achieved by temporarily connecting a flow meter to the output end of the output gas circuit of the insufflator to measure the output flow actually generated, and simultaneously monitor and obtain the corresponding sensor voltage; even if there is a structural tolerance in the output gas circuit of the insufflator, the curve shape between its corresponding output flow and the sensor voltage is similar to the reference fitting curve, and there is a corresponding gain multiplier relationship, so step S2 can compare the difference between the reference fitting curve and the actual output flow of the output gas circuit of the insufflator based on one or more sensor voltages measured in step S1, and calculate and determine the gain coefficient used to characterize the output flow measurement deviation caused by the tolerance according to the difference, and step S3 can then use the gain coefficient to correct the reference fitting curve to conveniently reconstruct and obtain the flow curve that eliminates the tolerance of the output gas circuit of the insufflator and is adapted to the insufflator currently in use, so as to obtain an accurate mapping relationship between the output flow and the sensor voltage.

[0059] It should be noted that step S2 can calculate a gain coefficient based on a set of output flow and sensor voltage obtained in step S1, or it can calculate multiple preliminary gain coefficients based on multiple sets of output flow and sensor voltage obtained in step S1, and then obtain the average of these preliminary gain coefficients as the gain coefficient used to correct the benchmark fitting curve; in general, since the curve shape between the output flow and the sensor voltage is also highly similar to the benchmark fitting curve, the benchmark adjustment voltage acquisition method of the embodiment of the present application preferably uses a set of output flow and sensor voltage obtained in step S1 to calculate the gain coefficient to improve calculation efficiency.

[0060] It should be noted that when the number of bypasses of the insufflator is different, the gain coefficient may include multiplier data of the total number of bypasses; in the embodiment of the present application, the number of bypasses of the reference insufflator is consistent with that of the insufflator to be calculated, so that the gain coefficient calculated in step S2 is only used to characterize the flow deviation caused by the difference in the output gas path.

[0061] More specifically, the reference adjustment flow in step S4 is a flow value that can be selected to be adjusted in the insufflator, which is generally an integer value suitable for patients. After the flow curve that can accurately characterize the mapping relationship between the output flow and the sensor voltage actually output by the insufflator currently in use is clarified in step S3, step S4 can extract the corresponding sensor voltage from the flow curve as the reference adjustment voltage value according to the reference adjustment flow. The reference adjustment voltage value is the internal control data used by the insufflator for flow regulation and voltage stabilization, that is, the underlying logic used by the insufflator for operation is to perform flow regulation and voltage stabilization based on the difference between the sensor voltage actually generated by the flow sensor and the reference adjustment voltage value, so that the actual output flow of the output gas circuit of the insufflator reaches the corresponding reference adjustment flow.

[0062] The reference regulation voltage acquisition method of the embodiment of the present application combines the actually collected output flow of the insufflator and the corresponding sensor voltage to compare the difference between the reference fitting curve and the output flow of the output gas circuit of the insufflator to obtain a gain coefficient, and uses the gain coefficient to correct the reference fitting curve to reconstruct a flow curve that can accurately characterize the mapping relationship between the output flow of the insufflator and the sensor voltage, and then obtains a reference regulation voltage value associated with the reference regulation flow based on the flow curve, thereby pre-calibrating the reference regulation voltage value, so that the insufflator can call a suitable reference regulation voltage value as a regulation indicator of the sensor voltage during the flow control and voltage stabilization process to ensure the timeliness and accuracy of flow control and voltage stabilization.

[0063] In some preferred embodiments, the total number of bypasses is 4-12.

[0064] Specifically, designing an appropriate number of bypasses in the insufflator can effectively improve the stability of airflow delivery and avoid unstable phenomena such as airflow turbulence in the output air path. However, too many bypasses will reduce system efficiency and increase energy consumption. Therefore, the total number of bypasses of the insufflator used in the reference regulation voltage acquisition method of the embodiment of the present application is designed to be 4-12, preferably 8.

[0065] In some preferred embodiments, the process of obtaining the reference fitting curve includes:

[0066] B1. Obtain the sensor voltage induced by the flow sensor in the reference insufflator at different gas flow rates;

[0067] B2. Fit different gas flow rates and corresponding sensor voltages based on a univariate cubic function to obtain a reference fitting curve.

[0068] Specifically, in other implementations, the reference fitting curve may also be established using a quadratic function. Relatively speaking, a cubic function is more complex and can more accurately describe the relationship between the reference pneumoperitoneum machine output flow and the sensor voltage.

[0069] More specifically, step B1-step B2 belongs to an experimental measurement process. Through single or multiple experimental measurements, an accurate benchmark fitting curve is obtained that can accurately reflect the curve relationship between the output flow rate of the flow sensor passing through the flow sensor in the reference insufflator and the sensor voltage generated by the flow sensor. This curve can serve as the basis for calculating the subsequent flow curves of different insufflators.

[0070] More specifically, the output flow rate (i.e., gas flow rate) of the flow sensor in B1 is defined as Fs, and the final benchmark fitting curve is expressed as:

[0071] y=n*(a*x 3 +b*x 2 +c*x+d) (1)

[0072] Wherein, n (an integer greater than 1) is the total number of bypasses, x is the sensor voltage, and a, b, c, and d are all constant terms obtained by fitting.

[0073] In some preferred embodiments, the step of calculating and obtaining the gain coefficient according to the output flow rate and the corresponding sensor voltage and the pre-acquired reference fitting curve includes:

[0074] S21, substituting the sensor voltage corresponding to the output flow into the reference fitting curve to obtain an estimated flow;

[0075] S22. Calculate and obtain a gain coefficient based on the ratio of the output flow rate to the estimated flow rate.

[0076] More specifically, since the number of bypasses of the reference insufflator and the insufflator to be calculated is the same, the total number of bypasses is a known value and can be integrated into the corresponding constant term. Therefore, formula (1) can be transformed into:

[0077] y=n*(a*x 3 +b*x 2 +c*x+d)=A*x 3 +B*x 2 +C*x+D (2)

[0078] Among them, A=n*a, B=n*b, C=n*c, D=n*d.

[0079] More specifically, the gain coefficient is defined as G, and the output flow is Y, then G satisfies: G=Y / y. The estimated flow can be easily obtained by substituting the sensor voltage corresponding to the measured output flow Y into x. Then, the gain coefficient G can be calculated by combining the output flow and the estimated flow under the same sensor voltage conditions. The reference benchmark fitting curve of the insufflator is equivalent to the flow curve of G=1.

[0080] More specifically, after the gain coefficient is determined, the flow curve obtained based on the gain coefficient is as follows:

[0081] Y=G*y=G*(A*x 3 +B*x 2 +C*x+D) (3)

[0082] The flow curve can accurately reflect the mapping relationship between the output flow of the currently used pneumoperitoneum machine and the sensor voltage. In step S4, the reference adjustment flow is substituted into Y to calculate the corresponding sensor voltage as the reference adjustment voltage value.

[0083] In some preferred embodiments, there are multiple reference regulating flow rates, and the step of calculating and obtaining the reference regulating voltage value according to the reference regulating flow rate and the flow curve includes:

[0084] S41. Calculate and obtain reference adjustment voltage values ​​corresponding to a plurality of reference adjustment flow rates according to the flow curve to establish a reference sensor voltage value table.

[0085] Specifically, the reference regulation voltage acquisition method of the embodiment of the present application can be to convert the reference regulation voltage value based on the reference regulation flow actually input by the user to perform flow regulation and voltage stabilization when the insufflator is actually used, or it can be to convert multiple corresponding reference regulation voltage values ​​based on multiple reference regulation flow rates that need to be used before use, so that the user can select the appropriate reference regulation flow to call the corresponding reference regulation voltage value to perform flow regulation and voltage stabilization when the insufflator is actually used. In the embodiment of the present application, the latter is preferred, which can omit the calculation process of the reference regulation voltage value during the actual regulation and voltage stabilization process, thereby further improving the timeliness of the flow regulation of the insufflator tube.

[0086] In some preferred embodiments, the step of respectively calculating and obtaining reference adjustment voltage values ​​corresponding to a plurality of reference adjustment flow rates according to the flow curve comprises:

[0087] S411, converting the flow curve into a cubic equation for solving the sensor voltage;

[0088] S412, respectively substituting a plurality of reference regulating flow rates into a cubic equation to obtain corresponding real roots, so as to obtain corresponding reference regulating voltage values.

[0089] Specifically, before solving x according to equation (3), equation (3) is transformed into a cubic equation for solving the sensor voltage, which is expressed as:

[0090] (4)

[0091] Solving equation (4) to obtain the solutions of x includes:

[0092] (5)

[0093] (6)

[0094] (7)

[0095] in, , , , , since x corresponds to the sensor voltage, its solution should be the real root x1. Therefore, in step S41, each reference adjustment flow rate is substituted into formula (5) to obtain the corresponding reference adjustment voltage value, and a mapping relationship is established between these reference adjustment voltage values ​​and the corresponding reference adjustment flow rates to obtain the corresponding reference sensor voltage value table, so that the pneumoperitoneum machine can directly call the appropriate reference adjustment voltage value according to the reference adjustment flow rate selected by the user to perform flow control and voltage stabilization.

[0096] In some other embodiments, the step of calculating and obtaining the gain coefficient according to the output flow rate and the corresponding sensor voltage and the pre-acquired reference fitting curve may also include:

[0097] S21', adding an initial gain coefficient to the reference fitting curve, substituting the sensor voltage corresponding to the output flow into the reference fitting curve after adding the initial gain coefficient to obtain an estimated flow, wherein the initial value of the initial gain coefficient is 1;

[0098] S22', comparing the output flow rate with the estimated flow rate, and adjusting the initial gain coefficient according to the comparison result until the output flow rate is the same as the estimated flow rate, so as to determine the adjusted initial gain coefficient as the gain coefficient.

[0099] Specifically, this implementation is equivalent to obtaining a flow curve by obtaining a gain based on adjusting an initial gain coefficient, which can reduce the technical requirements for operators and facilitate operators to quickly determine a suitable gain coefficient to set a reference adjustment voltage value.

[0100] More specifically, the insufflator generally has a flow display function. The estimated flow is actually the flow detection result generated by the embedded device inside the insufflator when the insufflator has not completed adjustment. Therefore, when executing step S22', the data displayed by the flow display function of the insufflator is the estimated flow. Therefore, the operator can compare the output flow measured by the flowmeter and the estimated flow displayed by the insufflator.

[0101] More specifically, in this embodiment, after the adjustment of the initial gain coefficient is completed in step S23', the current baseline fitting curve with the initial gain coefficient added is actually already aligned with the flow curve, so step S3 only needs to fix the gain coefficient to obtain the flow curve; in this embodiment, the operator can quickly obtain a flow curve that matches the currently used insufflator by comparing data and changing the initial gain coefficient set by the embedded device inside the insufflator, which has the characteristics of convenient operation and low technical requirements for the operator.

[0102] Second, please refer to Figure 2 Some embodiments of the present application also provide a gain adjustment method, which is applied to the output adjustment of the pneumoperitoneum machine. The gain adjustment method includes the following steps:

[0103] A1. Obtain a reference sensor voltage value table, where the reference sensor voltage value table includes a plurality of reference regulation voltage values ​​corresponding to different reference regulation flow rates, and the reference regulation voltage values ​​are calculated and obtained based on the reference regulation voltage acquisition method provided in the first aspect;

[0104] A2. Extract the corresponding reference adjustment voltage value from the reference sensor voltage value table according to the target flow rate as the target voltage value;

[0105] A3. Adjust the output flow of the insufflator according to the target voltage value.

[0106] It should be noted that the target flow is the benchmark regulated flow selected by the user. Generally, the benchmark sensor voltage value table should contain all benchmark regulated flows that the user can select, that is, the benchmark sensor voltage value table must be paired with a benchmark regulated voltage value corresponding to the target flow.

[0107] Specifically, the interval of the reference adjustment flow rate in the reference sensor voltage value table can be set according to the use requirements or the specifications of the pneumoperitoneum machine. For example, in the embodiment of the present application, the reference sensor voltage value table contains reference adjustment voltage values ​​corresponding to all integers in the interval (0,40] L / min for the reference adjustment flow rate, which can meet medical use requirements.

[0108] The gain adjustment method of the embodiment of the present application obtains a reference sensor voltage value table containing multiple reference adjustment voltage values ​​associated with a reference adjustment flow based on the reference adjustment voltage acquisition method provided in the first aspect, so as to call the reference adjustment voltage value corresponding to the target flow input by the user to realize flow control and voltage stabilization, which can effectively ensure the accuracy and timeliness of the pneumoperitoneum machine during the flow control and voltage stabilization process.

[0109] Third, please refer to Figure 3 Some embodiments of the present application further provide a reference adjustment voltage acquisition device, which is applied to the output adjustment of the insufflator. The output gas circuit of the insufflator includes multiple bypasses, one of which is provided with a flow sensor, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage. The reference adjustment voltage acquisition device includes:

[0110] A first acquisition module 301 is used to acquire at least one output flow rate of the pneumoperitoneum machine and a corresponding sensor voltage based on a flow meter;

[0111] A second acquisition module 302 is used to calculate and acquire a gain coefficient according to the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, where the reference fitting curve is a curve of the change of the gas flow rate output by the reference insufflator with respect to the sensor voltage;

[0112] The third acquisition module 303 is used to acquire a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, where the flow curve is a curve of the output flow of the output gas path of the insufflator with respect to the sensor voltage;

[0113] The calculation module 304 is used to calculate and obtain a reference regulating voltage value according to a reference regulating flow and a flow curve.

[0114] The reference regulation voltage acquisition device of the embodiment of the present application combines the actually collected output flow of the insufflator and the corresponding sensor voltage to compare the difference between the reference fitting curve and the output flow of the output gas circuit of the insufflator to obtain a gain coefficient, and uses the gain coefficient to correct the reference fitting curve to reconstruct a flow curve that can accurately characterize the mapping relationship between the output flow of the insufflator and the sensor voltage, and then obtains the reference regulation voltage value associated with the reference regulation flow based on the flow curve, thereby pre-calibrating the reference regulation voltage value, so that the insufflator can call the appropriate reference regulation voltage value as the sensor voltage regulation indicator during the flow control and voltage stabilization process to ensure the timeliness and accuracy of the flow control and voltage stabilization.

[0115] In some preferred implementations, the reference regulation voltage acquisition device of the embodiment of the present application is used to execute the reference regulation voltage acquisition method provided in the first aspect above.

[0116] Fourth, please refer to Figure 4 Some embodiments of the present application further provide a gain adjustment device, which is used in the output adjustment of the pneumoperitoneum machine, and the gain adjustment device includes:

[0117] A fourth acquisition module 401 is used to acquire a reference sensor voltage value table, the reference sensor voltage value table includes a plurality of reference regulation voltage values ​​corresponding to different reference regulation flow rates, and the reference regulation voltage values ​​are calculated and acquired based on the reference regulation voltage acquisition method provided in the first aspect;

[0118] An extraction module 402 is used to extract a corresponding reference adjustment voltage value from a reference sensor voltage value table according to a target flow rate as a target voltage value;

[0119] The regulating module 403 is used to regulate the output flow of the pneumoperitoneum machine according to the target voltage value.

[0120] The gain adjustment device of the embodiment of the present application obtains a reference sensor voltage value table containing multiple reference adjustment voltage values ​​associated with a reference adjustment flow based on the reference adjustment voltage acquisition method provided in the first aspect, so as to call the reference adjustment voltage value corresponding to the target flow input by the user to realize flow control and voltage stabilization, which can effectively ensure the accuracy and timeliness of the pneumoperitoneum machine during the flow control and voltage stabilization process.

[0121] In some preferred embodiments, the gain adjustment device of the embodiment of the present application is used to execute the gain adjustment method provided in the second aspect above.

[0122] Fifth, please refer to Figure 5Some embodiments of the present application also provide a structural diagram of an electronic device. The present application provides an electronic device, including: a processor 501 and a memory 502. The processor 501 and the memory 502 are interconnected and communicate with each other through a communication bus 503 and / or other forms of connection mechanisms (not marked). The memory 502 stores computer-readable instructions executable by the processor 501. When the electronic device is running, the processor 501 executes the computer-readable instructions to execute the method in any optional implementation of the above embodiments.

[0123] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method in any optional implementation of the above embodiment is executed. The computer-readable storage medium 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 memory, flash memory, disk or optical disk.

[0124] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0125] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0126] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0127] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0128] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for obtaining a reference regulation voltage, applied in the output regulation of an insufflator, wherein the output gas circuit of the insufflator includes a plurality of bypasses, one of which is provided with a flow sensor, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage, characterized in that: The reference regulation voltage acquisition method comprises the following steps: Acquire at least one output flow of the pneumoperitoneum machine and a corresponding sensor voltage generated by the flow sensor based on the flow meter; A gain coefficient is calculated based on the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, wherein the reference fitting curve is a curve of the change of the gas flow rate output by the reference insufflator with respect to the sensor voltage; Acquire a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, wherein the flow curve is a curve of the output flow of the output gas circuit of the insufflator with respect to the sensor voltage; The reference regulating voltage value is obtained by calculation according to the reference regulating flow and the flow curve.

2. The reference adjustment voltage acquisition method according to claim 1, characterized in that: The process of obtaining the benchmark fitting curve includes: Obtaining a sensor voltage induced by a flow sensor in the reference insufflator at different gas flow rates; Different gas flow rates and corresponding sensor voltages are fitted based on a cubic function to obtain the reference fitting curve.

3. The reference adjustment voltage acquisition method according to claim 1, characterized in that: The step of calculating and obtaining a gain coefficient according to the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve comprises: Substituting the sensor voltage corresponding to the output flow into the reference fitting curve to obtain an estimated flow; The gain coefficient is calculated based on the ratio of the output flow rate to the estimated flow rate.

4. The reference adjustment voltage acquisition method according to claim 1, characterized in that: The reference regulating flow rate is multiple, and the step of calculating and obtaining the reference regulating voltage value according to the reference regulating flow rate and the flow curve comprises: The reference adjustment voltage values ​​corresponding to a plurality of reference adjustment flow rates are respectively calculated and obtained according to the flow curve to establish a reference sensor voltage value table.

5. The reference adjustment voltage acquisition method according to claim 4, characterized in that: The step of respectively calculating and obtaining reference regulating voltage values ​​corresponding to a plurality of reference regulating flow rates according to the flow curve comprises: Convert the flow curve into a cubic equation with a single variable to solve for the sensor voltage; Substitute the multiple reference adjustment flow rates into the cubic equation to obtain corresponding real roots, so as to obtain corresponding reference adjustment voltage values.

6. A gain adjustment method, applied in the output adjustment of a pneumoperitoneum machine, characterized in that: The gain adjustment method comprises the following steps: Acquire a reference sensor voltage value table, wherein the reference sensor voltage value table includes a plurality of reference regulation voltage values ​​corresponding to different reference regulation flow rates, and the reference regulation voltage values ​​are calculated and acquired based on the reference regulation voltage acquisition method according to any one of claims 1 to 5; Extracting a corresponding reference adjustment voltage value from the reference sensor voltage value table as a target voltage value according to the target flow rate; The output flow of the pneumoperitoneum machine is adjusted according to the target voltage value.

7. A reference regulation voltage acquisition device, used in the output regulation of an insufflator, wherein the output gas circuit of the insufflator includes a plurality of bypasses, one of which is provided with a flow sensor, and the flow sensor is used to sense the gas flow in the corresponding bypass to generate a sensor voltage, characterized in that: The reference regulation voltage acquisition device comprises: A first acquisition module, configured to acquire at least one output flow of the pneumoperitoneum machine and a corresponding sensor voltage generated by the flow sensor based on a flow meter; A second acquisition module, used for calculating and acquiring a gain coefficient according to the output flow rate and the corresponding sensor voltage and a pre-acquired reference fitting curve, wherein the reference fitting curve is a curve of a change in the gas flow rate output by a reference insufflator with respect to the sensor voltage; A third acquisition module, used for acquiring a flow curve corresponding to the insufflator according to the gain coefficient and the reference fitting curve, wherein the flow curve is a curve of the output flow of the output gas circuit of the insufflator with respect to the sensor voltage; The calculation module is used to calculate and obtain a reference regulation voltage value according to a reference regulation flow and the flow curve.

8. A gain adjustment device, used in the output adjustment of a pneumoperitoneum machine, characterized in that: The gain adjustment device comprises: a fourth acquisition module, configured to acquire a reference sensor voltage value table, wherein the reference sensor voltage value table includes a plurality of reference regulation voltage values ​​corresponding to different reference regulation flow rates, and wherein the reference regulation voltage values ​​are calculated and acquired based on the reference regulation voltage acquisition method according to any one of claims 1 to 5; An extraction module, used for extracting a corresponding reference adjustment voltage value from the reference sensor voltage value table as a target voltage value according to a target flow rate; A regulating module is used to regulate the output flow of the pneumoperitoneum machine according to the target voltage value.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 6 are executed.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are executed.

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