Respiratory parameter measurement system and method

Abstract

The application discloses a kind of respiratory parameter measurement system and method, the system includes: oscillator, airway pipeline, breathing nozzle, gyroscope, gas parameter sensor and compensation processing part;Oscillator is connected with breathing nozzle by airway pipeline, gyroscope is set on breathing nozzle;Gas parameter sensor is set on the inner surface of airway pipeline;Compensation processing part is respectively connected with oscillator, gas parameter sensor and gyroscope communication;Wherein, compensation processing part, based on the first respiratory parameter measured by oscillator, the breathing nozzle angle based on gyroscope detection, the first gas parameter based on gas parameter sensor detection, and the target nominal respiratory parameter corresponding to standard load, the second respiratory parameter and the second gas parameter, carry out respiratory parameter calibration processing, obtain the target respiratory parameter corresponding to test object, solve the problem of inaccurate respiratory parameter measurement, can reduce the measurement error of target respiratory parameter, improve the accuracy of target respiratory parameter.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and in particular to a respiratory parameter measurement system and method. BACKGROUND

[0002] Oscillatory wave lung function test is an important means for diagnosing respiratory diseases. Since the oscillatory wave lung function test does not require exhalation, inhalation, breath holding and other operations, it is suitable for severe patients or the elderly.

[0003] At present, the existing technology usually adopts a lung function detection instrument based on sound wave oscillation excitation to detect the response of the respiratory system of a subject, so as to obtain respiratory parameters representing the mechanical properties of the respiratory system. However, the respiratory parameters detected based on the lung function detection instrument have errors, and cannot provide reliable basis for the diagnosis of respiratory diseases. SUMMARY

[0004] The present application provides a respiratory parameter measurement system and method to solve the problem of inaccurate respiratory parameter measurement, and improves the accuracy of respiratory parameters.

[0005] According to an aspect of the present application, a respiratory parameter measurement system is provided, comprising: an oscillator, an airway pipeline, a breathing mouthpiece, a gyroscope, a gas parameter sensor, and a compensation processing component; the oscillator is connected to the breathing mouthpiece through the airway pipeline, and the gyroscope is arranged on the breathing mouthpiece; the gas parameter sensor is arranged on the inner surface of the airway pipeline; the compensation processing component is in communication connection with the oscillator, the gas parameter sensor, and the gyroscope; wherein,

[0006] The oscillator is configured to generate an oscillatory wave.

[0007] The breathing mouthpiece is configured at the mouth of a subject during measurement, loads the oscillatory wave transmitted through the airway pipeline to the mouth of the subject, and loads the first echo gas signal fed back by the subject to the airway pipeline.

[0008] The oscillator is further configured to determine the first respiratory parameter corresponding to the subject based on the airway pipeline loaded with the first echo gas signal, and transmit the first respiratory parameter to the compensation processing component.

[0009] The gyroscope is configured to detect the breathing mouthpiece angle of the breathing mouthpiece when the breathing mouthpiece is configured at the mouth of the subject, and transmit the breathing mouthpiece angle to the compensation processing component.

[0010] The gas parameter sensor is configured to detect the first gas parameter of the gas inside the airway pipeline, and transmit the first gas parameter to the compensation processing component.

[0011] The compensation processing component receives the first respiratory parameter, the mouthpiece angle, and the first gas parameter, and obtains a target nominal respiratory parameter, a second respiratory parameter, and a second gas parameter corresponding to a standard load; performs respiratory parameter calibration processing based on the target nominal respiratory parameter, the second respiratory parameter, and the second gas parameter, and the first respiratory parameter, the mouthpiece angle, and the first gas parameter, to obtain a target respiratory parameter corresponding to the test subject.

[0012] According to another aspect of the present application, a respiratory parameter measurement method is provided, comprising:

[0013] generating an oscillation wave based on an oscillator;

[0014] configuring the mouthpiece on the mouth of the test subject during the measurement process, loading the oscillation wave transmitted through the airway pipeline to the mouth of the test subject based on the mouthpiece, and loading the first echo gas signal fed back by the test subject to the airway pipeline;

[0015] determining a first respiratory parameter corresponding to the test subject based on the airway pipeline loaded with the first echo gas signal by the oscillator, and transmitting the first respiratory parameter to the compensation processing component;

[0016] detecting a mouthpiece angle of the mouthpiece when the mouthpiece is configured on the mouth of the test subject by the gyroscope, and transmitting the mouthpiece angle to the compensation processing component;

[0017] detecting a first gas parameter of the gas inside the airway pipeline by the gas parameter sensor, and transmitting the first gas parameter to the compensation processing component;

[0018] The compensation processing component receives the first respiratory parameter, the mouthpiece angle, and the first gas parameter, and obtains a target nominal respiratory parameter, a second respiratory parameter, and a second gas parameter corresponding to a standard load; performs respiratory parameter calibration processing based on the target nominal respiratory parameter, the second respiratory parameter, and the second gas parameter, and the first respiratory parameter, the mouthpiece angle, and the first gas parameter, to obtain a target respiratory parameter corresponding to the test subject.

[0019] The oscillator and the mouthpiece are connected through the airway pipeline, the gyroscope is arranged on the mouthpiece; the gas parameter sensor is arranged on the inner surface of the airway pipeline; and the compensation processing component is in communication connection with the oscillator, the gas parameter sensor, and the gyroscope, respectively.

[0020] The technical scheme of the embodiment of the present application, the respiratory parameter measurement system comprises an oscillator, an airway pipeline, a breathing nozzle, a gyroscope, a gas parameter sensor and a compensation processing component, the compensation processing component performs respiratory parameter calibration processing on a first respiratory parameter based on the measurement of the oscillator, a breathing nozzle angle based on the detection of the gyroscope, a first gas parameter based on the detection of the gas parameter sensor, and a target nominal respiratory parameter, a second respiratory parameter and a second gas parameter corresponding to a standard load, to obtain a target respiratory parameter corresponding to the test object, instead of directly determining the first respiratory parameter as the target respiratory parameter, solving the problem of inaccurate respiratory parameter measurement, being capable of reducing the measurement error of the target respiratory parameter, making the target respiratory parameter closer to the real respiratory parameter of the test object relative to the first respiratory parameter, and improving the accuracy of the target respiratory parameter.

[0021] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a structural schematic diagram of a respiratory parameter measurement system provided by the first embodiment of the present application;

[0024] Figure 2 is a structural schematic diagram of a respiratory parameter measurement system provided by the first embodiment of the present application;

[0025] Figure 3 is a structural schematic diagram of a respiratory parameter measurement system provided by the first embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of a respiratory parameter measurement system provided by the second embodiment of the present application;

[0027] Figure 5 is a flowchart of a respiratory parameter measurement method provided by the third embodiment of the present application. DETAILED DESCRIPTION

[0028] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely 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 the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0029] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not necessarily have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to the process, method, product, or device.

[0030] Embodiment one

[0031] Figure 1 is a structural schematic diagram of a respiratory parameter measurement system provided by the embodiment one of the present application. The embodiment can be applicable to the case of detecting the respiratory parameter of a test object. The system can be realized in the form of hardware and / or software, and can be realized by an electronic device, which can be a mobile terminal, a PC terminal, or a server, etc.

[0032] In the embodiment, the test object is a sample for respiratory parameter detection, which can be a human body or an animal body containing a respiratory system, and the embodiment does not limit this. The respiratory parameter is a parameter representing the lung function of the test object, wherein the respiratory parameter includes but is not limited to respiratory impedance and respiratory reactance.

[0033] As shown in Figure 1 , the respiratory parameter measurement system 100 can specifically include an oscillator 110, an airway pipeline 120, a breathing mouthpiece 130, a gyroscope 140, a gas parameter sensor 150, and a compensation processing component (not shown). The oscillator 110 is connected to the breathing mouthpiece 130 through the airway pipeline 120, and the gyroscope 140 is arranged on the breathing mouthpiece 130. The gas parameter sensor 150 is arranged on the inner surface of the airway pipeline 120. The compensation processing component is communicatively connected to the oscillator 110, the gas parameter sensor 150, and the gyroscope 140, respectively.

[0034] The oscillator 110 is configured to generate an oscillation wave.

[0035] In the embodiment, the oscillometer 110 is an instrument for lung function detection of a subject, wherein the principle of the oscillometer 110 is to measure the respiratory parameters of the respiratory system of the subject by using sound wave excitation and spectrum analysis technology. For example, the oscillometer 110 is a pulse oscillometer 110 or a continuous wave oscillometer 110. The oscillating wave is a sound wave signal used to impact the respiratory system of the subject.

[0036] Specifically, in the case of meeting the oscillating wave generation condition, the oscillometer 110 performs the oscillating wave generation operation, generates the oscillating wave, and transmits the oscillating wave to the airway pipeline 120 through the outlet of the oscillometer 110. The oscillating wave generation condition is a triggering condition for the oscillometer 110 to perform the oscillating wave generation operation. For example, the oscillating wave generation condition includes one or more of the following: detecting that the oscillating wave generation button on the oscillometer 110 is triggered; detecting the oscillating wave generation signal sent by the mobile terminal associated with the oscillometer 110; detecting that the airway pipeline 120 is airtight. The mobile terminal associated with the oscillometer 110 can be a mobile phone, a computer, a remote controller, or other terminals associated with the oscillometer 110, which is used to provide interactive functions. The airway pipeline 120 is a pipeline for propagating the oscillating wave. It should be noted that the respiratory system of the subject will reflect the corresponding echo gas signal of the oscillating wave when it is impacted by the oscillating wave. The corresponding echo gas signal of the oscillating wave contains information representing the lung function of the subject. In addition to transmitting the oscillating wave from the oscillometer 110 to the respiratory system of the subject, the airway pipeline 120 is also used to transmit the corresponding echo gas signal of the oscillating wave from the respiratory system of the subject to the oscillometer 110. Optionally, the airway pipeline 120 includes an airway hose and an airway joint pipe; the airway joint pipe is arranged outside the airway hose; wherein the airway hose is used to transmit the oscillating wave and the corresponding echo gas signal of the oscillating wave; and the airway joint pipe is used to support the shape of the airway hose.

[0037] In the embodiment, the airway hose is a pipeline in the airway pipeline 120 for transmitting the sound wave signal. The airway hose is made of soft material, such as polyvinyl chloride or silicone, so as to be able to bend.

[0038] It should be noted that the oscillating wave and the corresponding echo gas signal of the oscillating wave are both transmitted by the gas in the airway pipeline 120 and the respiratory system of the subject. The airway pipeline 120 is connected at the oscillating wave outlet of the oscillometer 110. By setting the inner diameter of the airway hose to match the outer diameter of the outlet of the oscillometer 110, the airtightness is ensured, and the leakage of the oscillating wave and the corresponding echo gas signal of the oscillating wave at the outlet of the oscillometer 110 is avoided, which causes the measurement error of the respiratory parameters.

[0039] The airway bellows is a pipeline in the airway pipeline 120 for supporting the shape of the airway hose. The airway bellows is made of a hard material, such as metal or polyethylene, so as to avoid deformation of the airway hose. The airway bellows has a range of bending degrees, and the bending degree of the airway bellows can be arbitrarily selected within the range of bending degrees, so that the airway hose wrapped by the airway bellows is bent and not deformed. For example, the range of bending degrees is 0-180 degrees.

[0040] The technical scheme of the embodiment can ensure that the airway hose does not deform and reduce the loss of the oscillation wave and the corresponding echo gas signal in the process of transmission in the airway pipeline 120.

[0041] The breathing mouthpiece 130 is arranged at the mouth of the test object during measurement, loads the oscillation wave transmitted through the airway pipeline 120 to the mouth of the test object, and loads the first echo gas signal fed back by the test object to the airway pipeline 120.

[0042] In the embodiment, the breathing mouthpiece 130 is a device for connecting the airway pipeline 120 and the mouth of the test object. For example, the breathing mouthpiece 130 is a mask capable of covering the mouth of the test object.

[0043] Specifically, during measurement, the breathing parameter of the test object is measured by arranging the breathing mouthpiece 130 at the mouth of the test object, which can avoid the leakage of the oscillation wave and the corresponding echo gas signal at the mouth of the test object, thereby avoiding the measurement error of the breathing parameter. The breathing mouthpiece 130 receives the oscillation wave transmitted through the airway pipeline 120 and loads the received oscillation wave to the mouth of the test object, so that the respiratory system of the test object receives the impact of the oscillation wave. The first echo gas signal is the reflected oscillation wave corresponding to the echo gas signal after the respiratory system of the test object receives the impact of the oscillation wave. The breathing mouthpiece 130 collects the first echo gas signal fed back by the test object and loads the first echo gas signal to the airway pipeline 120, so that the first echo gas signal is transmitted from the test object to the oscillator 110 along the airway pipeline 120.

[0044] The oscillator 110 is also used to determine the first breathing parameter corresponding to the test object based on the airway pipeline 120 loaded with the first echo gas signal, and send the first breathing parameter to the compensation processing component.

[0045] In the embodiment, the first breathing parameter is a breathing parameter representing the lung function of the test object. For example, the first breathing parameter includes the respiratory impedance and the respiratory reactance of the test object.

[0046] Specifically, the oscillator 110 performs airway characteristic analysis on the airway pipeline 120 loaded with the first echo gas signal to obtain the first respiratory parameter. For example, the oscillator 110 includes an air flow sensor and a sound pressure sensor, both of which are arranged on the inner surface of the airway pipeline 120, wherein the air flow sensor is configured to detect a flow signal corresponding to the first echo gas signal, and the sound pressure sensor is configured to detect a pressure signal corresponding to the first echo gas signal. The oscillator 110 calculates the respiratory parameter based on the flow signal and the pressure signal to obtain the first respiratory parameter. The oscillator 110 transmits the first respiratory parameter to the compensation processing component in a wired or wireless manner.

[0047] The gyroscope 140 is configured to detect a mouthpiece angle of the mouthpiece 130 when the mouthpiece 130 is arranged at the mouth of the subject, and transmit the mouthpiece angle to the compensation processing component.

[0048] In this embodiment, the mouthpiece angle is an angle of the mouthpiece 130 detected by the gyroscope 140, and is used to represent the pose of the subject.

[0049] Specifically, when the mouthpiece 130 is arranged at the mouth of the subject, it can be considered that the respiratory parameter measurement system 100 is currently in a measurement process, and the gyroscope 140 detects the angle of the mouthpiece 130 to obtain the mouthpiece angle. The gyroscope 140 transmits the mouthpiece angle to the compensation processing component in a wired or wireless manner. For example, the gyroscope 140 is a three-axis gyroscope or a six-axis gyroscope.

[0050] The gas parameter sensor 150 is configured to detect a first gas parameter of the gas in the airway pipeline 120, and transmit the first gas parameter to the compensation processing component.

[0051] In this embodiment, the first gas parameter is a gas parameter representing the property of the gas in the airway pipeline 120 during the measurement process. For example, the gas parameter includes but is not limited to a temperature parameter, a humidity parameter, and a pressure parameter.

[0052] Specifically, the gas parameter sensor 150 arranged on the inner surface of the airway pipeline 120 detects the gas parameter of the gas in the airway pipeline 120 during the measurement process to obtain the first gas parameter. The gas parameter sensor 150 transmits the first gas parameter to the compensation processing component in a wired or wireless manner.

[0053] The compensation processing component is configured to receive the first respiratory parameter, the mouthpiece angle, and the first gas parameter, and obtain a target nominal respiratory parameter, a second respiratory parameter, and a second gas parameter corresponding to a standard load; and perform respiratory parameter calibration processing based on the target nominal respiratory parameter, the second respiratory parameter, and the second gas parameter, and the first respiratory parameter, the mouthpiece angle, and the first gas parameter to obtain a target respiratory parameter corresponding to the subject.

[0054] In the embodiment, the compensation processing component is a component with a computing function. The compensation processing component can be a hardware component (for example, a desktop computer, a tablet computer, a mobile phone, and a chip integrated in the oscillator 110) or a software processing module. The embodiment is not limited in this regard. For example, the compensation processing component can be a computer. Figure 2 is a structural diagram of a breathing parameter measurement system according to an embodiment of the present application. As shown in the figure, the compensation processing component 160 is a computer in communication connection with the oscillator 110, the gas parameter sensor 150, and the gyroscope 140. It can be understood that the compensation processing component further includes an amplifier and a collector. The amplifier is configured to amplify the first breathing parameter, the first gas parameter, and the mouth angle. The collector is configured to collect the amplified first breathing parameter, the first gas parameter, and the mouth angle. The target breathing parameter is the calibrated first breathing parameter. Figure 2 Specifically, during the measurement process, the compensation processing component receives the first breathing parameter transmitted by the oscillator 110, the mouth angle transmitted by the gyroscope 140, and the first gas parameter transmitted by the gas parameter sensor 150. The standard load is a load with a known breathing parameter. The target nominal breathing parameter is a known breathing parameter corresponding to the standard load. For example, the target nominal breathing parameter and the target breathing parameter are both respiratory impedance or respiratory reactance. The second breathing parameter is a breathing parameter measured by the breathing parameter measurement system 100 when the mouthpiece 130 is arranged on the standard load. The second gas parameter is a gas parameter representing the gas property inside the airway pipeline 120 during the determination of the second breathing parameter. It should be noted that the target nominal breathing parameter, the second breathing parameter, and the target breathing parameter all belong to the same type of breathing parameter.

[0055]

[0056] ​It should be noted that, under the condition that the standard load is the same, the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter obtained by the same type of respiratory parameter measurement system 100 can be considered as fixed values, and the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load can be determined based on any respiratory parameter measurement system 100, and the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter are pre-stored in the compensation processing component locally or in the server. The compensation processing component can obtain the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter by calling the pre-stored target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, so as to improve the efficiency of obtaining the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load; the compensation processing component can also read the known respiratory parameter of the standard load before or after measuring the first respiratory parameter of the subject each time, to obtain the target nominal respiratory parameter corresponding to the standard load, or to re-measure the respiratory parameter and the gas parameter based on the standard load to obtain the second respiratory parameter and the second gas parameter corresponding to the standard load, so as to avoid the influence of the working environment of the respiratory parameter measurement system 100 on the second respiratory parameter and the second gas parameter, and improve the accuracy of the second respiratory parameter and the second gas parameter. The present embodiment is not limited in this regard. Optionally, the gas parameter sensor 150 includes a temperature sensor and a pressure sensor; correspondingly, the first gas parameter includes a first airway temperature parameter and a first airway pressure parameter; the second gas parameter includes a second airway temperature parameter and a second airway pressure parameter; wherein the first airway temperature parameter and the second airway temperature parameter are obtained based on the temperature sensor, and the first airway pressure parameter and the second airway pressure parameter are obtained based on the pressure sensor.

[0057] In the present embodiment, the temperature sensor and the pressure sensor are both arranged on the inner surface of the airway pipeline 120. The first airway temperature parameter is a gas parameter representing the temperature property of the gas inside the airway pipeline 120 during the measurement process, and the first airway pressure parameter is a gas parameter representing the pressure property of the gas inside the airway pipeline 120 during the measurement process. The second airway temperature parameter is a gas parameter representing the temperature property of the gas inside the airway pipeline 120 during the determination of the second respiratory parameter. The second airway pressure parameter is a gas parameter representing the pressure property of the gas inside the airway pipeline 120 during the determination of the second respiratory parameter.

[0058] Specifically, during the measurement process, the temperature sensor detects the temperature parameter of the gas in the airway pipeline 120 to obtain the first airway temperature parameter, and the pressure sensor detects the pressure parameter of the gas in the airway pipeline 120 to obtain the first airway pressure parameter. During the second respiratory parameter determination process, the temperature sensor detects the temperature parameter of the gas in the airway pipeline 120 to obtain the second airway temperature parameter, and the pressure sensor detects the pressure parameter of the gas in the airway pipeline 120 to obtain the second airway pressure parameter.

[0059] The technical scheme of the embodiment can ensure that the first airway temperature parameter and the second airway temperature parameter represent the temperature of the gas at the same position in the airway pipeline 120, and ensure that the first airway pressure parameter and the second airway pressure parameter represent the pressure of the gas at the same position in the airway pipeline 120, thereby avoiding the influence of the airway parameter detection position on the calibration accuracy and helping to improve the accuracy of the target respiratory parameter.

[0060] The compensation processing component calibrates the first respiratory parameter based on the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, the mouthpiece angle, and the first gas parameter, and determines the calibrated first respiratory parameter as the target respiratory parameter corresponding to the test subject. For example, the target respiratory parameter is obtained by inputting the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, the mouthpiece angle, the first respiratory parameter, and the first gas parameter into a first respiratory parameter calibration function for calculation and processing, wherein the first respiratory parameter calibration function is a function for calibrating the first respiratory parameter, the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, the mouthpiece angle, the first respiratory parameter, and the first gas parameter are independent variables, and the target respiratory parameter is a dependent variable. Optionally, the compensation processing component is specifically configured to: determine a compensation offset value based on the first gas parameter, the second gas parameter, the target nominal respiratory parameter, and the second respiratory parameter; determine a compensation coefficient based on a preset correlation coefficient and the mouthpiece angle; and calibrate the first respiratory parameter based on the compensation offset value and the compensation coefficient to obtain the target respiratory parameter corresponding to the test subject.

[0061] In the embodiment, the compensation offset value is a parameter value for offset compensation of the first gas parameter, and is used to represent the degree of deviation of the first gas parameter from the target respiratory parameter. The compensation coefficient is a parameter value for gain compensation of the offset-compensated first gas parameter, and is used to represent the amplification multiple of the target respiratory parameter relative to the offset-compensated first gas parameter.

[0062] Specifically, the compensation processing component performs offset compensation calculation based on the first gas parameter, the second gas parameter, the target nominal respiratory parameter and the second respiratory parameter to obtain a compensation offset value. The compensation processing component performs gain compensation calculation based on a preset correlation coefficient and the mouthpiece angle to obtain a compensation coefficient. The preset correlation coefficient is used to represent the correlation between the first gas parameter and the respiratory parameter of the subject in the standard pose. The standard pose is a sitting pose, and the preset correlation coefficient is within [0, 1]. In some cases, the subject is in a non-standard test pose, and the non-standard test pose includes a lying pose. The non-standard test pose is a pose other than the standard pose, and the subject in the lying pose lies flat on the bed or the ground with the face upward and the body parallel to the ground. The non-standard test pose can also include one or more of a side-lying position, a supine semi-sitting position, and a prone position. Optionally, the preset correlation coefficient is determined based on the test pose of the subject; the preset correlation coefficient corresponding to the lying pose is within [0.6, 0.7].

[0063] Specifically, the test pose is the real-time pose of the subject during the measurement. In the process of determining the compensation coefficient, the test pose of the subject can be determined by a pose detection device, for example, an optical sensor; or the subject can be guided to maintain a preset pose, and the preset pose is determined as the test pose. The preset pose is a pose that the subject needs to maintain during the measurement, and the preset pose can be a pose that the subject is easy to maintain. For example, assuming that the subject is a critically ill patient or an elderly person, the preset pose can be a lying pose. The preset correlation coefficient is obtained by querying the correlation between the test pose and the standard pose in terms of the respiratory parameter. When the respiratory parameter measured in the lying pose is 60% to 70% of the respiratory parameter measured in the sitting pose, the preset correlation coefficient corresponding to the lying pose is within [0.6, 0.7], and for example, 0.65 is determined as the preset correlation coefficient when the test pose is a lying pose.

[0064] The technical solution of the embodiment can ensure the reliability of the calibration process of the first respiratory parameter, and help to obtain an accurate target respiratory parameter in the test pose by determining the preset correlation coefficient based on the test pose of the subject.

[0065] The first gas parameter is summed with the compensation offset value to obtain the offset-compensated first gas parameter, and the offset-compensated first gas parameter is multiplied by the compensation coefficient to obtain the target respiratory parameter.

[0066] For example, assuming that the first gas parameter includes a first airway temperature parameter and a first airway pressure parameter, and the second gas parameter includes a second airway temperature parameter and a second airway pressure parameter, the target respiratory parameter is: r= [U1-(P1T2) / (P2T1)(U2-U s )]*n*cosθ, wherein the compensation offset value is -(P1T2) / (P2T1)(X2-X s ), T1 is a first airway temperature parameter, P1 is a first airway pressure parameter, T2 is a second airway temperature parameter, P2 is a second airway pressure parameter, U s is a target nominal respiratory parameter, U1 is a second respiratory parameter, U2 is a second respiratory parameter, the compensation coefficient is n*cosθ, n is a preset correlation coefficient, and θ is a breathing mouth angle.

[0067] For example, assuming that the target respiratory parameter includes a target respiratory impedance and a target respiratory reactance, the target respiratory impedance is R r = [R1-(P1T2) / (P2T1)(R2-R s )]*n*cosθ, wherein R s is a respiratory impedance in the target nominal respiratory parameter, R1 is a respiratory impedance in the first respiratory parameter, and R2 is a respiratory impedance in the second respiratory parameter; and the target respiratory reactance is X r = [X1-(P1T2) / (P2T1)(X2-X s )]*n*cosθ, wherein X s is a respiratory reactance in the target nominal respiratory parameter, X1 is a respiratory reactance in the first respiratory parameter, and X2 is a respiratory reactance in the second respiratory parameter.

[0068] The technical solution of the embodiment determines the compensation offset value and the compensation coefficient, and calibrates the first respiratory parameter based on the compensation offset value and the compensation coefficient to obtain the target respiratory parameter corresponding to the test subject, thereby reducing the measurement error of the target respiratory parameter and making the target respiratory parameter closer to the real respiratory parameter of the test subject relative to the first respiratory parameter.

[0069] In some embodiments, the respiratory parameter measurement system 100 supports and fixes the airway pipeline 120 and the oscillator 110. Optionally, the respiratory parameter measurement system 100 further includes a support frame 170; wherein the support frame 170 includes an airway pipeline sub-support frame 171 and an oscillator sub-support frame 172; wherein the airway pipeline sub-support frame 171 is configured to support the airway pipeline 120, and the oscillator sub-support frame 172 is configured to support the oscillator 110.

[0070] In the embodiment, the support frame 170 is used to support the airway pipeline 120 and the oscillometer 110, and is fixed at the positions of the airway pipeline 120 and the oscillometer 110. Exemplarily, the material of the support frame 170 can be metal or engineering plastic, and the embodiment does not limit this. The airway pipeline sub-support frame 171 is a sub-support frame in the support frame 170, which supports at least a part of the airway pipeline 120 outside the airway pipeline 120; the oscillometer sub-support frame 172 is a sub-support frame in the support frame 170, which supports at least a part of the oscillometer 110 outside the oscillometer 110. Exemplarily, Figure 3 is a structural schematic diagram of a breathing parameter measurement system 100 provided by the embodiment one of the present application, wherein a compensation processing component is not shown, such as Figure 3 As shown, the airway pipeline sub-support frame 171 is higher than the oscillometer sub-support frame 172. Optionally, the contact point of the airway pipeline sub-support frame 171 with the airway pipeline 120 is located within the [1 / 3, 2 / 3] length of the airway pipeline 120; the contact point of the oscillometer sub-support frame 172 with the oscillometer 110 is located within the [1 / 3, 2 / 3] height of the oscillometer 110.

[0071] Specifically, by contacting one or more points within the [1 / 3, 2 / 3] length of the airway pipeline 120 with the airway pipeline sub-support frame 171, the airway pipeline sub-support frame 171 supports the airway pipeline 120 at the contact point, and the one or more points within the [1 / 3, 2 / 3] length of the airway pipeline 120 are located at the middle position of the length of the airway pipeline 120, which can ensure that the airway pipeline 120 is stably supported by the airway pipeline sub-support frame 171 and will not slide off the airway pipeline sub-support frame 171. By contacting one or more points within the [1 / 3, 2 / 3] height of the oscillometer 110 with the oscillometer sub-support frame 172, the oscillometer sub-support frame 172 supports the oscillometer 110 at the contact point, and the one or more points within the [1 / 3, 2 / 3] height of the oscillometer 110 are located at the middle position of the height of the oscillometer 110, which can ensure that the oscillometer 110 is stably supported by the oscillometer sub-support frame 172 and will not tilt or slide off the oscillometer sub-support frame 172.

[0072] In some embodiments, the support frame 170 can adjust the height of the airway pipeline 120 and / or the oscillometer 110. Optionally, the support frame 170 further comprises a height adjustment sub-module, wherein the height adjustment sub-module is used to adjust the height of the airway pipeline sub-support frame 171 and / or the height of the oscillometer sub-support frame 172.

[0073] In the embodiment, the structure of the support frame 170 except the airway pipeline sub-support frame 171, the oscillator sub-support frame 172 and the height adjustment sub-module is a load-bearing structure. The height adjustment sub-module can be arranged at the connection between the airway pipeline sub-support frame 171 and the load-bearing structure and / or the connection between the oscillator sub-support frame 172 and the load-bearing structure; or can be arranged between the two connections of the load-bearing structure and the airway pipeline sub-support frame 171 and the oscillator sub-support frame 172 respectively and / or below the connection between the oscillator sub-support frame 172 and the load-bearing structure, which is not limited in the embodiment. By arranging the height adjustment sub-module in the support frame 170, the height of the airway pipeline sub-support frame 171 and / or the height of the oscillator sub-support frame 172 can be adjusted, the height adjustment of the airway pipeline 120 and the oscillator 110 is realized, and the respiratory parameter measurement of the test object in different test poses and / or different test heights is facilitated, wherein the test height is the height of the mouth of the test object in the measurement process.

[0074] In some embodiments, the height adjustment sub-module synchronously adjusts the height of the airway pipeline sub-support frame 171 and the oscillator sub-support frame 172, so that the height difference between the airway pipeline 120 and the oscillator 110 is fixed; in some embodiments, the height adjustment sub-module adjusts the height of the airway pipeline sub-support frame 171 and / or the oscillator sub-support frame 172 individually, so that the height difference between the airway pipeline 120 and the oscillator 110 changes.

[0075] The technical scheme of the embodiment, by arranging the support frame 170 in the respiratory parameter measurement system 100, the airway pipeline 120 is supported by the airway pipeline sub-support frame 171, and the oscillator 110 is supported by the oscillator sub-support frame 172, which can provide stable support for the airway pipeline 120 and the oscillator 110, and does not need to find the placement position of the oscillator 110 and the airway pipeline 120 in the measurement process, thereby improving the convenience of the respiratory parameter measurement system 100.

[0076] The technical scheme of the embodiment, the respiratory parameter measurement system 100 comprises: an oscillator 110, an airway pipeline 120, a breathing mouth 130, a gyroscope 140, a gas parameter sensor 150 and a compensation processing part. The compensation processing part performs respiratory parameter calibration processing on the first respiratory parameter measured based on the oscillator 110, the breathing mouth angle detected based on the gyroscope 140, the first gas parameter detected based on the gas parameter sensor 150, and the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load, to obtain the target respiratory parameter corresponding to the test object, instead of directly determining the first respiratory parameter as the target respiratory parameter, thereby solving the problem of inaccurate respiratory parameter measurement, reducing the measurement error of the target respiratory parameter, making the target respiratory parameter closer to the true respiratory parameter of the test object relative to the first respiratory parameter, and improving the accuracy of the target respiratory parameter.

[0077] Embodiment Two

[0078] Figure 4 is a structural schematic diagram of a respiratory parameter measurement system 100 provided by Embodiment Two of the present application. The technical solution of the present embodiment is further optimized on the basis of any of the above embodiments. The explanations of the same or corresponding terms as in the above embodiments will not be repeated here. As shown in the figure, the respiratory parameter measurement system 100 specifically can include an oscillator 110, an airway pipeline 120, a breathing mouthpiece 130, a gyroscope 140, a gas parameter sensor 150, a compensation processing component (not shown), and a standard load 180. Figure 4

[0079] In the present embodiment, the respiratory parameter measurement system 100 is used to detect, in addition to the first respiratory parameter, the breathing mouthpiece angle and the first gas parameter, and is also used to preprocess based on the standard load 180 to obtain the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load 180.

[0080] The oscillator 110 is used to generate an oscillation wave.

[0081] The breathing mouthpiece 130 is configured at the mouth of the test subject during the measurement process, loads the oscillation wave transmitted through the airway pipeline 120 to the mouth of the test subject, and loads the first echo gas signal fed back by the test subject to the airway pipeline 120; the oscillator 110 is also used to determine the first respiratory parameter corresponding to the test subject based on the airway pipeline 120 loaded with the first echo gas signal, and sends the first respiratory parameter to the compensation processing component; the gyroscope 140 is used to detect the breathing mouthpiece angle of the breathing mouthpiece 130 when the breathing mouthpiece 130 is configured at the mouth of the test subject, and transmit the breathing mouthpiece angle to the compensation processing component; the gas parameter sensor 150 is used to detect the first gas parameter of the gas inside the airway pipeline 120, and send the first gas parameter to the compensation processing component.

[0082] During the preprocessing process, the breathing mouthpiece 130 is configured on the standard load 180, loads the oscillation wave transmitted through the airway pipeline 120 to the standard load 180, and loads the second echo gas signal fed back by the standard load 180 to the airway pipeline 120; the oscillator 110 is also used to determine the second respiratory parameter corresponding to the standard load 180 based on the airway pipeline 120 loaded with the second echo gas signal, and send the second respiratory parameter to the compensation processing component; the gas parameter sensor 150 is used to detect the second gas parameter of the gas inside the airway pipeline 120 during the preprocessing process, and send the second gas parameter to the compensation processing component; the compensation processing component stores the second respiratory parameter, the second gas parameter and the target nominal respiratory parameter corresponding to the standard load 180.

[0083] ​Specifically, in the pre-processing process, the second respiratory parameter and the second gas parameter corresponding to the standard load 180 are measured. The breathing mouth 130 is configured on the standard load 180 by connecting the standard load 180 with the breathing mouth 130 and ensuring that there is no gas leakage between the standard load 180 and the breathing mouth 130. For example, as shown in FIG. 1, the breathing mouth 130 is configured at one end of the standard load 180. Figure 4

[0084] When the breathing mouth 130 is configured on the standard load 180, the oscillation wave generated by the oscillator 110 is transmitted to the airway pipeline 120, and the breathing mouth 130 loads the oscillation wave transmitted through the airway pipeline 120 to the standard load 180, so that the standard load 180 reflects the echo gas signal corresponding to the oscillation wave under the impact of the oscillation wave, and the echo gas signal reflected by the standard load 180 is determined as the second echo gas signal fed back by the standard load 180. The breathing mouth 130 collects the second echo gas signal fed back by the standard load 180 and loads the second echo gas signal to the airway pipeline 120, so that the second echo gas signal is transmitted from the test subject to the oscillator 110 along the airway pipeline 120.

[0085] The oscillator 110 analyzes the airway characteristics of the airway pipeline 120 loaded with the second echo gas signal to obtain the second respiratory parameter. For example, the oscillator 110 includes an airflow sensor and a sound pressure sensor, both of which are arranged on the inner surface of the airway pipeline 120. The airflow sensor is used to detect the flow signal corresponding to the second echo gas signal, and the sound pressure sensor is used to detect the pressure signal corresponding to the second echo gas signal. The oscillator 110 calculates the respiratory parameter based on the flow signal and the pressure signal to obtain the second respiratory parameter. The oscillator 110 transmits the second respiratory parameter to the compensation processing component in a wired or wireless manner.

[0086] The gas parameter sensor 150 arranged on the inner surface of the airway pipeline 120 detects the gas parameter of the gas inside the airway pipeline 120 in the pre-processing process to obtain the second gas parameter. The gas parameter sensor 150 transmits the second gas parameter to the compensation processing component in a wired or wireless manner. For example, the second gas parameter includes a second airway temperature parameter and a second airway pressure parameter.

[0087] The compensation processing component stores the second respiratory parameter, the second gas parameter obtained in the pre-processing process, and the target nominal respiratory parameter corresponding to the target load in the compensation processing component locally or in a server, so as to facilitate obtaining the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load 180 in the subsequent respiratory parameter calibration process.

[0088] ​It should be noted that the embodiment does not limit the order between the measurement process and the pretreatment process, and the pretreatment process can also be located before the measurement process.

[0089] For example, it is assumed that the length of the airway tube 120 in the respiratory parameter measurement system 100 is 2 meters. During the test, the test subject maintains a lying position, the height adjustment submodule adjusts the height of the airway tube sub-support frame and / or the oscillator sub-support frame, so that the airway tube sub-support frame stably supports the airway tube 120, and the oscillator sub-support frame stably supports the oscillator 110, and by adjusting the breathing nozzle angle of the breathing nozzle 130, the breathing nozzle 130 is wrapped around the mouth and nose of the test subject without air leakage, and the adaptation of the breathing nozzle 130 to the test subject is achieved; the oscillator 110 performs first respiratory parameter measurement processing on the test subject, and obtains first respiratory parameters, during the first respiratory parameter measurement processing, the oscillation wave generated by the oscillator 110 is transmitted from the outlet of the oscillator 110 to the breathing nozzle 130 arranged at the mouth of the test subject through the airway tube 120; the compensation processing component records the first respiratory parameters measured by the oscillator 110 and the first gas parameters measured by the gas parameter sensor 150 during the measurement process, and draws a frequency-dependent curve corresponding to the first respiratory parameters based on the first respiratory parameters. After the measurement process is completed, the height adjustment submodule adjusts the height of the airway tube sub-support frame and / or the oscillator sub-support frame, so that the breathing nozzle 130 is separated from the mouth of the test subject, and the pretreatment is performed based on the standard load 180. During the pretreatment process, the standard load 180 is connected to the breathing nozzle 130 and ensures no air leakage; the compensation processing component records the second respiratory parameters measured by the oscillator 110 and the second gas parameters measured by the gas parameter sensor 150 during the pretreatment process, and draws a frequency-dependent curve corresponding to the second respiratory parameters based on the second respiratory parameters.

[0090] The compensation processing component is configured to receive the first respiratory parameters, the breathing nozzle angle, and the first gas parameters, and obtain target nominal respiratory parameters, second respiratory parameters, and second gas parameters corresponding to the standard load 180; perform respiratory parameter calibration processing based on the target nominal respiratory parameters, the second respiratory parameters, and the second gas parameters, and the first respiratory parameters, the breathing nozzle angle, and the first gas parameters, to obtain target respiratory parameters corresponding to the test subject.

[0091] The technical scheme of the embodiment is configured with the standard load 180 in the respiratory parameter measurement system 100, the second respiratory parameter and the second gas parameter corresponding to the standard load 180 are measured by the respiratory parameter measurement system 100 in the preprocessing process, and the second respiratory parameter, the second gas parameter and the target nominal respiratory parameter corresponding to the standard load 180 are stored by the compensation processing component in the respiratory parameter measurement system 100, so that the compensation processing component re-measures the respiratory parameter and the gas parameter based on the standard load 180 before or after each measurement of the first respiratory parameter of the test subject, to obtain the second respiratory parameter and the second gas parameter corresponding to the standard load 180, thereby avoiding the influence of the working environment of the respiratory parameter measurement system 100 on the second respiratory parameter and the second gas parameter, and improving the accuracy of the second respiratory parameter and the second gas parameter.

[0092] Embodiment three

[0093] Figure 5 is a flowchart of a respiratory parameter measurement method provided by the embodiment three of the present application. As shown in the figure, Figure 5 the method comprises:

[0094] S310, generating an oscillation wave based on an oscillator.

[0095] S320, configuring the breathing mouthpiece at the mouth of the test subject during the measurement process, loading the oscillation wave transmitted through the airway pipeline to the mouth of the test subject based on the breathing mouthpiece, and loading the first echo gas signal fed back by the test subject to the airway pipeline.

[0096] S330, determining the first respiratory parameter corresponding to the test subject based on the airway pipeline loaded with the first echo gas signal by the oscillator, and sending the first respiratory parameter to the compensation processing component.

[0097] S340, detecting the breathing mouthpiece angle of the breathing mouthpiece when the breathing mouthpiece is configured at the mouth of the test subject by the gyroscope, and transmitting the breathing mouthpiece angle to the compensation processing component.

[0098] S350, detecting the first gas parameter of the gas inside the airway pipeline by the gas parameter sensor, and sending the first gas parameter to the compensation processing component.

[0099] S360, receiving the first respiratory parameter, the breathing mouthpiece angle and the first gas parameter by the compensation processing component, and obtaining the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load; performing respiratory parameter calibration processing based on the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, and the first respiratory parameter, the breathing mouthpiece angle and the first gas parameter, to obtain the target respiratory parameter corresponding to the test subject.

[0100] The oscillator is connected with the breathing nozzle through an airway pipeline, and the gyroscope is arranged on the breathing nozzle; the gas parameter sensor is arranged on the inner surface of the airway pipeline; and the compensation processing component is in communication connection with the oscillator, the gas parameter sensor and the gyroscope.

[0101] On the basis of the above-mentioned embodiments, the target respiratory parameter corresponding to the test object is obtained through respiratory parameter calibration processing based on the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter, and the first respiratory parameter, the breathing nozzle angle and the first gas parameter, and specifically includes: determining a compensation offset value based on the first gas parameter, the second gas parameter, the target nominal respiratory parameter and the second respiratory parameter; determining a compensation coefficient based on the preset correlation coefficient and the breathing nozzle angle; and calibrating the first respiratory parameter based on the compensation offset value and the compensation coefficient to obtain the target respiratory parameter corresponding to the test object.

[0102] On the basis of the above-mentioned embodiments, the test object is in a non-standard test posture, and the non-standard test posture includes a lying posture; the preset correlation coefficient is determined based on the test posture of the test object; and the preset correlation coefficient corresponding to the lying posture is located in [0.6, 0.7].

[0103] On the basis of the above-mentioned embodiments, the gas parameter sensor includes a temperature sensor and a pressure sensor; correspondingly, the first gas parameter includes a first airway internal temperature parameter and a first airway internal pressure parameter; the second gas parameter includes a second airway internal temperature parameter and a second airway internal pressure parameter; wherein the first airway internal temperature parameter and the second airway internal temperature parameter are both obtained based on the temperature sensor, and the first airway internal pressure parameter and the second airway internal pressure parameter are both obtained based on the pressure sensor.

[0104] On the basis of the above-mentioned embodiments, the respiratory parameter measurement method further includes: in the pre-processing process, the breathing nozzle is configured on a standard load, the oscillation wave transmitted through the airway pipeline is loaded to the standard load, and the second echo gas signal fed back by the standard load is loaded to the airway pipeline; the second respiratory parameter corresponding to the standard load is determined by the oscillator based on the airway pipeline loaded with the second echo gas signal, and the second respiratory parameter is sent to the compensation processing component; the second gas parameter of the gas in the airway pipeline in the pre-processing process is detected by the gas parameter sensor, and the second gas parameter is sent to the compensation processing component; and the second respiratory parameter corresponding to the standard load, the second gas parameter and the target nominal respiratory parameter are stored by the compensation processing component.

[0105] On the basis of the above-mentioned embodiment, optionally, the airway pipeline comprises an airway hose and an airway elbow; the airway elbow is arranged outside the airway hose; correspondingly, the method for measuring the respiratory parameter further comprises: transmitting the oscillation wave and the corresponding echo gas signal of the oscillation wave based on the airway hose; and supporting the shape of the airway hose based on the airway elbow.

[0106] On the basis of the above-mentioned embodiment, optionally, the support frame comprises an airway pipeline sub-support frame and an oscillator sub-support frame; the airway pipeline sub-support frame is used for supporting the airway pipeline; and the oscillator sub-support frame is used for supporting the oscillator.

[0107] On the basis of the above-mentioned embodiment, optionally, the support frame further comprises a height adjustment sub-module; correspondingly, the method for measuring the respiratory parameter further comprises: adjusting the height of the airway pipeline sub-support frame and / or the height of the oscillator sub-support frame based on the height adjustment sub-module.

[0108] On the basis of the above-mentioned embodiment, optionally, the contact point between the airway pipeline sub-support frame and the airway pipeline is located within the [1 / 3, 2 / 3] length of the airway pipeline; and the contact point between the oscillator sub-support frame and the oscillator is located within the [1 / 3, 2 / 3] height of the oscillator.

[0109] The technical scheme of the embodiment, by means of the compensation processing component, the first respiratory parameter measured based on the oscillator, the respiratory mouth angle detected based on the gyroscope, the first gas parameter detected based on the gas parameter sensor, and the target nominal respiratory parameter, the second respiratory parameter and the second gas parameter corresponding to the standard load, are subjected to respiratory parameter calibration processing to obtain the target respiratory parameter corresponding to the test object, instead of directly determining the first respiratory parameter as the target respiratory parameter, thereby solving the problem of inaccurate respiratory parameter measurement, reducing the measurement error of the target respiratory parameter, making the target respiratory parameter closer to the true respiratory parameter of the test object relative to the first respiratory parameter, and improving the accuracy of the target respiratory parameter.

[0110] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical scheme of the present application can be achieved, which is not limited herein.

[0111] The above detailed description does not constitute a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A respiratory parameter measurement system, characterized in that, include: The system comprises an oscillator, an airway tubing, a mouthpiece, a gyroscope, a gas parameter sensor, and a compensation processing unit. The oscillator is connected to the mouthpiece via the airway tubing, and the gyroscope is mounted on the mouthpiece. The gas parameter sensor is disposed on the inner surface of the airway tubing. The compensation processing unit is communicatively connected to the oscillator, the gas parameter sensor, and the gyroscope. The oscillator is used to generate oscillating waves; During the measurement process, the breathing nozzle is positioned in the mouth of the test subject, and the oscillation wave transmitted through the airway is applied to the mouth of the test subject, and the first echo gas signal fed back by the test subject is applied to the airway. The oscillator is also used to determine the first respiratory parameter corresponding to the subject based on the airway tube loaded with the first echo gas signal, and send the first respiratory parameter to the compensation processing unit. The gyroscope is used to detect the mouthpiece angle of the breathing nozzle when the breathing nozzle is disposed in the mouth of the subject, and to transmit the mouthpiece angle to the compensation processing unit. The gas parameter sensor is used to detect a first gas parameter of the gas inside the gas pipeline and send the first gas parameter to the compensation processing component. The compensation processing unit is used to receive the first breathing parameter, the mouthpiece angle, and the first gas parameter, and to obtain the target nominal breathing parameter, the second breathing parameter, and the second gas parameter corresponding to the standard load; and to perform breathing parameter calibration processing based on the target nominal breathing parameter, the second breathing parameter, and the second gas parameter, as well as the first breathing parameter, the mouthpiece angle, and the first gas parameter, to obtain the target breathing parameter corresponding to the subject.

2. The system according to claim 1, characterized in that, The compensation processing component is specifically used for: Based on the first gas parameter, the second gas parameter, the target nominal breathing parameter, and the second breathing parameter, a compensation offset value is determined; The compensation coefficient is determined based on the preset correlation coefficient and the mouthpiece angle; The first respiratory parameter is calibrated based on the compensation offset value and the compensation coefficient to obtain the target respiratory parameter corresponding to the subject.

3. The system according to claim 2, characterized in that, The subject is in a non-standard testing posture, including a lying position; the preset correlation coefficient is determined based on the subject's testing posture; the preset correlation coefficient corresponding to the lying position is within [0.6, 0.7].

4. The system according to claim 1 or 2, characterized in that, The gas parameter sensor includes a temperature sensor and a pressure sensor; Accordingly, the first gas parameters include the temperature parameter and the pressure parameter within the first airway; The second gas parameters include the temperature parameter inside the second airway and the pressure parameter inside the second airway. The temperature parameters in the first and second airways are both obtained based on the temperature sensor, and the pressure parameters in the first and second airways are both obtained based on the pressure sensor.

5. The system according to claim 1, characterized in that, The system also includes the standard load; During the pretreatment process, the breathing nozzle is configured on the standard load, the oscillation wave transmitted through the airway is loaded onto the standard load, and the second echo gas signal fed back by the standard load is loaded onto the airway. The oscillator is also used to determine the second breathing parameter corresponding to the standard load based on the airway tube loaded with the second echo gas signal, and send the second breathing parameter to the compensation processing unit; The gas parameter sensor is used to detect a second gas parameter of the gas inside the gas pipeline during the pretreatment process, and send the second gas parameter to the compensation processing component. The compensation processing unit stores the second breathing parameters, the second gas parameters, and the target nominal breathing parameters corresponding to the standard load.

6. The system according to claim 1, characterized in that, The airway system includes an airway hose and an airway bamboo tube; the airway bamboo tube is disposed outside the airway hose; wherein, The airway hose is used to transmit the oscillation wave and the corresponding echo gas signal of the oscillation wave; The airway bamboo tube is used to support the shape of the airway hose.

7. The system according to claim 1, characterized in that, The respiratory parameter measurement system further includes: a support frame; wherein; the support frame includes an airway tubing sub-support frame and an oscillator sub-support frame; wherein; The airway tubing sub-support frame is used to support the airway tubing; The oscillator sub-support frame is used to support the oscillator.

8. The system according to claim 7, characterized in that, The support frame further includes: a height adjustment submodule; wherein, The height adjustment submodule is used to adjust the height of the airway tubing sub-support frame and / or the height of the oscillator sub-support frame.

9. The system according to claim 7, characterized in that, The contact point between the airway tube sub-support frame and the airway tube is located within the [1 / 3, 2 / 3] length of the airway tube; The contact point between the oscillator sub-support frame and the oscillator is located within the height of the oscillator at [1 / 3, 2 / 3].

10. A method for measuring respiratory parameters, characterized in that, include: Oscillating waves are generated based on an oscillator; During the measurement process, a breathing nozzle is placed in the mouth of the subject, and the oscillating wave transmitted through the airway is loaded onto the mouth of the subject based on the breathing nozzle, and the first echo gas signal fed back by the subject is loaded onto the airway. The first respiratory parameter corresponding to the subject is determined by the oscillator based on the airway tube loaded with the first echo gas signal, and the first respiratory parameter is sent to the compensation processing unit. With the breathing nozzle positioned over the subject's mouth using a gyroscope, the breathing nozzle angle is detected and transmitted to the compensation processing unit. The gas parameter sensor detects the first gas parameter of the gas inside the gas passage and sends the first gas parameter to the compensation processing unit. The compensation processing unit receives the first breathing parameter, the breathing nozzle angle, and the first gas parameter, and obtains the target nominal breathing parameter, the second breathing parameter, and the second gas parameter corresponding to the standard load. Based on the target nominal breathing parameters, the second breathing parameters and the second gas parameters, as well as the first breathing parameters, the mouthpiece angle and the first gas parameters, breathing parameter calibration processing is performed to obtain the target breathing parameters corresponding to the subject. The oscillator is connected to the breathing nozzle via the airway tubing, and the gyroscope is mounted on the breathing nozzle; the gas parameter sensor is mounted on the inner surface of the airway tubing; the compensation processing component is communicatively connected to the oscillator, the gas parameter sensor, and the gyroscope.

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