CN111595609A - A respiratory rhythm generating device, detection system and detection method thereof - Google Patents

Abstract

The embodiment of the application discloses a respiratory rhythm generating device, a detection system with the same and a detection method. The respiratory rhythm generating apparatus includes: the controller, install first solenoid valve, second solenoid valve and positive pressure pump on the equipment bottom plate, set up standard gas inlet and the outlet of modulating gas on the equipment side board. The respiratory rhythm generating device can truly and accurately simulate the respiratory change rule of a human body, and is matched with carbon dioxide standard gas with different concentrations to detect the accuracy of a monitoring module in the respiratory monitoring device. Meanwhile, the breathing rhythm generation equipment is simple and easy to operate and understand, small in size and convenient to carry and carry out detection work.

Description

A respiratory rhythm generating device, detection system and detection method thereof

technical field

The present application relates to a monitoring technology of a respiratory monitoring system, in particular to a respiratory rhythm generating device, a detection system and a detection method thereof.

Background technique

End-tidal carbon dioxide concentration or partial pressure is an important monitoring indicator for anesthetized patients and patients with respiratory and metabolic diseases. At present, the monitoring function of parameters such as end-tidal carbon dioxide concentration or partial pressure has become a routine configuration of multi-parameter monitoring equipment (hereinafter referred to as respiratory monitoring equipment) in domestic and foreign hospitals. Therefore, there is a need to test the accuracy of these respiratory monitoring devices.

SUMMARY OF THE INVENTION

This summary of the disclosure serves to introduce concepts in a simplified form that are described in detail in the detailed description that follows. The content section of this disclosure is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to be used to limit the scope of the claimed technical solution.

Some embodiments of the present application propose a respiratory rhythm generating device and a respiratory monitoring device accuracy detection system and method to solve the technical problems mentioned in the above background art section.

In a first aspect, some embodiments of the present disclosure provide a respiratory rhythm generating device, comprising: a controller, a solenoid valve and a positive pressure pump mounted on a bottom plate of the device, a standard gas provided on a side panel of the device an inlet and an outlet for modulating gas; wherein the solenoid valve is used to control the input and output of gas, the solenoid valve includes a first solenoid valve for inputting carbon dioxide standard gas and a second solenoid valve for inputting air, and the first solenoid valve is used for inputting air. Both ends of a solenoid valve are respectively connected to the standard gas inlet and the modulated gas outlet through hoses, and both ends of the second solenoid valve are respectively connected to the positive pressure pump and the modulated gas outlet through hoses connected; the positive pressure pump is used for applying positive air pressure to the second solenoid valve; the controller is used to control the operation of the device, and the controller is electrically connected to the solenoid valve and the positive pressure pump connect.

In a second aspect, some embodiments of the present disclosure provide an accuracy detection system for a respiratory monitoring device, including a carbon dioxide standard gas cylinder, the respiratory rhythm generating device and the respiratory monitoring device according to any one of claims 1-6; wherein , the gas outlet of the carbon dioxide standard gas cylinder is connected with the standard gas inlet of the respiratory rhythm generating device through a hose; the monitoring module of the respiratory monitoring device and the modulating gas outlet of the respiratory rhythm generating device are connected by a hose connected.

In a third aspect, some embodiments of the present disclosure provide a method for detecting the accuracy of a respiratory monitoring device based on the respiratory monitoring device accuracy detecting system provided by the above-mentioned embodiments, including: acquiring a device set on a respiratory rhythm generating device in the system. The breathing parameter includes a first carbon dioxide concentration; the breathing rhythm generating device is controlled to generate expiratory gas based on the breathing parameter; the monitoring module of the breathing monitoring device in the system determines the breathing gas. The second carbon dioxide concentration of the gas; the first carbon dioxide concentration and the second carbon dioxide concentration are compared and calculated; based on the comparison result obtained by the comparison calculation, the accuracy of the breathing monitoring device is determined.

One of the above-mentioned embodiments of the present disclosure has the following beneficial effects: the respiratory rhythm generating device and the respiratory monitoring device accuracy detection system and method proposed in the present disclosure can truly and accurately simulate the changing laws of human respiration, and cooperate with different concentrations of Carbon dioxide standard gas, used to test the accuracy of monitoring modules in functional equipment with respiratory parameter monitoring. At the same time, the respiratory rhythm generating equipment is easy to operate and easy to understand, and the volume is small, which is easy to carry out for testing. In addition, in order to ensure that the respiratory rhythm generating device can simulate the changing law of human respiration according to the set respiratory frequency parameters, the device also provides an evaluation function of device self-calibration, which ensures the reliability of the accuracy detection of the respiratory monitoring device.

Description of drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent when taken in conjunction with the accompanying drawings and with reference to the following detailed description. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

Fig. 1 is the schematic diagram of end-tidal carbon dioxide curve;

2 is a block diagram of the internal structure of some embodiments of a respiratory rhythm generating device according to the present disclosure;

3 is a block diagram of the internal structure of other embodiments of the respiratory rhythm generating device according to the present disclosure;

4 is a block diagram of the external structure of some embodiments of a respiratory rhythm generating device according to the present disclosure;

5 is a structural block diagram of a controller in some embodiments of a respiratory rhythm generating apparatus according to the present disclosure;

6 is a structural block diagram of some embodiments of a respiratory monitoring device accuracy detection system according to the present disclosure;

7 is a schematic diagram of a respiratory rhythm waveform curve of a respiratory rhythm generating device according to some embodiments of the respiratory monitoring device accuracy detection system of the present disclosure;

FIG. 8 is a flowchart of some embodiments of a method of detecting the accuracy of a respiratory monitoring device according to the present disclosure;

FIG. 9 is a schematic diagram of a working state of a respiratory rhythm generating device in some embodiments of the respiratory parameter device accuracy detection method according to the present disclosure.

Detailed ways

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes, and are not intended to limit the protection scope of the present disclosure.

In addition, it should be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings. The embodiments of this disclosure and features of the embodiments may be combined with each other without conflict.

It should be noted that concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or interdependence.

It should be noted that the modifications of "a" and "a plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, they should be understood as "one or a plurality of". multiple".

The names of messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes, and are not intended to limit the scope of these messages or information.

The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

In clinical diagnosis, end-tidal carbon dioxide monitoring equipment or multi-parameter monitoring equipment with carbon dioxide partial pressure monitoring function (hereinafter referred to as respiratory monitoring equipment) are equipped with mainstream/side-flow end-tidal carbon dioxide probes for measuring The concentration of carbon dioxide in the exhaled air at the end of exhalation (the peak concentration during the expiratory cycle) and the respiratory rate. The realization of this monitoring function is mainly based on non-dispersive infrared spectroscopy technology. The end-tidal carbon dioxide probe has a built-in infrared light sensor. When CO2 gas flows through the probe, it will absorb part of the infrared energy. After the signal is processed, the corresponding carbon dioxide waveform curve and concentration value will be obtained. Objective assessment of respiratory function.

As shown in Figure 1, during respiration, the normal carbon dioxide curve can be divided into expiratory phase (P-Q-R) and inspiratory phase (R-S-P). During exhalation, the waveform curve generally rises steeply from the inspiratory baseline (zero position), and maintains a horizontal or slightly upward slope from a certain moment. When the expiratory curve is close to the horizontal, the plateau end value is the end-tidal carbon dioxide concentration; At the beginning of inspiration, the carbon dioxide waveform drops sharply and steeply to the baseline, completing a complete expiratory cycle.

Respiratory rhythm generation equipment simulates the changing laws of human breathing, and with different concentrations of carbon dioxide standard gas (balanced gas is nitrogen), it can be used to detect the accuracy of end-tidal carbon dioxide monitoring equipment or multi-parameter monitoring equipment with carbon dioxide monitoring partial pressure monitoring function.

FIG. 2 shows a respiratory rhythm generating device according to an embodiment of the present disclosure. The device includes: a controller 11, a solenoid valve and a positive pressure pump 4 mounted on the bottom plate of the device, a standard gas inlet 5 and a modulated gas outlet 6 provided on the side panel of the device.

Among them, the solenoid valve is used to control the input and output of gas, and simulate the changing law of human respiration, which includes a first solenoid valve 1 for inputting carbon dioxide standard gas and a second solenoid valve 2 for inputting air. One end of the first solenoid valve 1 is connected to the standard gas inlet 5 through a hose to ensure that when the first solenoid valve 1 is opened, the carbon dioxide standard gas enters the gas path of the device; the other end is connected to the modulated gas outlet 6 through a hose, The carbon dioxide standard gas is discharged through the modulating gas outlet 6 . One end of the second solenoid valve 2 is connected to the positive pressure pump 4 through a hose, and the other end is connected to the modulating gas outlet 6 through a hose. When the second solenoid valve 2 is opened, the positive pressure pump 4 applies positive air pressure to the second Solenoid valve 2, and discharged through the modulating gas outlet 6. The controller 11 is used to control the operation of the equipment, specifically including the setting of breathing parameters, the opening and closing of the solenoid valve, the monitoring of parameters in the simulated breathing process, etc., so as to realize the simulation of the breathing variation law. The controller 11 is connected with the solenoid valve and positive pressure. The pump 4 is electrically connected.

When the above-mentioned breathing rhythm generating device starts to work, it receives the settings for breathing parameters, and the breathing parameters may include carbon dioxide gas concentration, breathing rate, inspiratory volume and expiratory volume, and breathing-to-breath ratio; and then determine carbon dioxide standard gas and air according to the breathing parameters. The input time period, input concentration, etc. respectively; after the determination is completed, the solenoid valve 1 is opened, the carbon dioxide standard gas enters the equipment through the standard gas inlet 5 through the hose, and is discharged through the modulated gas outlet 6; according to the determined time period, the solenoid valve 1 is closed, carbon dioxide standard gas is prohibited from entering the air circuit; the positive pressure pump 4 applies air positive pressure to the solenoid valve 2, the solenoid valve 2 is opened, and the air is discharged through the modulating gas outlet 6 to realize the occurrence of the breathing rhythm and the simulation of the breathing change law.

The monitoring module of the aforementioned respiratory monitoring equipment is connected to the modulated gas outlet 6, and the measurement of the carbon dioxide concentration in the expiratory gas discharged from the modulated gas outlet 6 is realized by the infrared light sensor of the end-tidal carbon dioxide probe in the monitoring module, The carbon dioxide concentration is compared and calculated with the set value of the respiratory rhythm generating device, so as to realize the detection of the accuracy of the respiratory monitoring device, and the detection result can be displayed through an external device or a display panel on the device.

Optionally, the setting process of the breathing parameters may be set through voice setting, remote control setting of an external device, and key panel setting on the device, which is not limited in this disclosure.

Through the respiratory rhythm generating device disclosed in the above-mentioned embodiments of the present disclosure, the variation law of human respiration can be simulated truly and accurately, and the standard gas of carbon dioxide with different concentrations can be used to detect the accuracy of the monitoring module in the functional device with respiratory parameter monitoring. . The present disclosure can detect end-tidal carbon dioxide monitoring modules of two sampling types of mainstream type and side-flow type, and meets the requirements of relevant verification regulations. At the same time, the respiratory rhythm generating device is easy to operate and easy to understand, and the volume is small, so it is easy to carry out to carry out detection work.

As another embodiment of the present disclosure, FIG. 3 shows a respiratory rhythm generating apparatus according to an embodiment of the present disclosure. On the basis of the embodiment shown in FIG. 2 , the respiratory rhythm generating device of this embodiment further includes a third solenoid valve 3 for discharging air. The opening and closing state of the third solenoid valve 3 is opposite to the opening and closing state of the second solenoid valve 2. One end of the third solenoid valve 3 is connected to the positive pressure pump 4 through a hose. When the third solenoid valve 3 is opened, The positive pressure pump 4 is used to apply positive air pressure to the third solenoid valve 3 . It should be noted that, because the positive pressure pump needs to be connected to the second solenoid valve 2 and the third solenoid valve 3 at the same time, the solenoid valve 2 , the solenoid valve 3 , and the positive pressure pump 4 are connected through a three-way hose.

Specifically, after the respiratory rhythm generating device is turned on, the positive pressure pump 4 is always in the working state of drawing air. In the process that the device simulates the changing law of human breathing and generates breathing gas, carbon dioxide standard gas and air are sequentially discharged through the modulating gas outlet 6 . When carbon dioxide standard gas needs to be discharged through the modulating gas outlet 6, the second solenoid valve 2 is in a closed state, while the third solenoid valve 3 needs to be opened, and the air is discharged through the third solenoid valve 3; when the air needs to be discharged through the modulating gas outlet 6 When the third solenoid valve 3 is closed, the positive pressure pump 4 applies positive air pressure to At the second solenoid valve 2, the second solenoid valve 2 is opened, and the air can be discharged through the modulating gas outlet 6.

Optionally, as shown in FIG. 4 , a display panel 12 and control buttons are provided outside the device, and the control buttons include an upper button 8, a lower button 9 and a cursor button 10, which are used to set and adjust breathing parameters, and the breathing parameters include carbon dioxide. Gas concentration, respiration rate, inspiratory volume, expiratory volume, and breath-to-breath ratio. The controller 11 is electrically connected to the display panel 12 and the control keys. Optionally, when setting the parameters of carbon dioxide gas concentration and respiration rate, the default respiration rate step is 1 RPM, and the CO2 concentration step is 0.01%. The display panel has the function of displaying breathing parameters and error information. Specifically, it has the function of dynamic curve indication of breathing frequency and carbon dioxide standard gas output, which can display the breathing frequency and carbon dioxide standard gas output in the process of simulating the change of body breathing. . At the same time, after receiving the monitoring data of the carbon dioxide concentration in the expiratory gas discharged from the modulated gas outlet 6 by the respiratory monitoring device, the controller 11 can automatically calculate the error between the end-tidal carbon dioxide concentration and the set end-tidal carbon dioxide concentration data, and display the error data on the display panel 12 .

As some optional embodiments of the present disclosure, as shown in FIG. 5 , the controller 11 specifically includes a power module, a solenoid valve driving module, a key control module and a display module. The power supply module is used to realize the power supply function of the device; the solenoid valve driving module is electrically connected to the first solenoid valve 1, the first solenoid valve 2 and the third solenoid valve 3, and is used to control the opening and closing of the above solenoid valves; The module is electrically connected with the control button, and is used to set the breathing parameters and the monitoring parameters of the external equipment. The monitoring parameters can be the monitoring data of the carbon dioxide concentration and the breathing frequency in the exhaled gas discharged from the modulated gas outlet 6 by the breathing monitoring equipment; display The module is electrically connected to the display panel 12 for displaying the above breathing parameters and error information.

Further, the controller 11 also includes an air pressure measurement module and a data processing module. Among them, the air pressure measurement module is used to measure the ambient atmospheric pressure; the data processing module is used to calculate and process the monitoring data. Specifically, the standard value of the end-tidal carbon dioxide concentration can be calculated according to the ambient atmospheric pressure, and the end-tidal carbon dioxide concentration and the set value can also be calculated. Error data for the determined end-tidal carbon dioxide concentration.

As some optional embodiments of the present disclosure, as shown in FIG. 3 , a calibration port 7 is further provided on the side panel of the device for calibrating the device. In the actual use of the respiratory rhythm generating equipment, in order to ensure that the respiratory rhythm generating equipment can simulate the changing law of human breathing according to the set respiratory frequency parameters, the accuracy of the equipment can be evaluated, and the accuracy of the respiratory monitoring equipment can be detected. reliability.

Specifically, an external device can be connected to the calibration port 7, and the external device can read the respiratory rhythm waveform curve generated by the respiratory rhythm generating device. The breathing frequency in the set breathing parameters is compared and calculated, and the accuracy of the breathing rhythm generating equipment is determined according to the comparison results, and the technology is calibrated.

FIG. 6 shows a respiratory monitoring device accuracy detection system according to an embodiment of the present disclosure. The system shown includes: a carbon dioxide standard gas cylinder, the breathing rhythm generating device described in the above embodiment, and the breathing monitoring device.

Wherein, the gas outlet of the carbon dioxide standard gas cylinder is connected with the standard gas inlet 5 of the breathing rhythm generating device through a hose, to ensure that when the solenoid valve 1 is opened, the carbon dioxide standard gas enters the generator through the standard gas inlet 5. . The monitoring module of the respiration monitoring device is connected with the modulated gas outlet 6 of the breathing rhythm generating device through a hose, so that through the infrared light sensor of the end-tidal carbon dioxide probe in the monitoring module, the expiratory gas discharged from the modulated gas outlet 6 can be detected. The determination of carbon dioxide concentration completes the subsequent detection of the accuracy of the respiratory monitoring equipment.

As some optional embodiments of the present disclosure, the system further includes a digital oscilloscope, and the signal input end of the digital oscilloscope is connected to the calibration port 7 of the respiratory rhythm generating device. As shown in Figure 7, the digital oscilloscope can display the respiratory rhythm waveform curve of the respiratory rhythm generating device, read the period T of the respiratory rhythm waveform curve through the oscilloscope, calculate the respiratory frequency value, and compare it with the respiratory rhythm generating device actually set the respiratory frequency Values are compared to determine the accuracy of the respiratory rhythm generating device, and the technique is calibrated.

Through the accuracy detection system for respiratory monitoring equipment disclosed in the above embodiments of the present disclosure, the variation law of human breathing can be simulated truly and accurately, and the standard gas of carbon dioxide with different concentrations can be used to detect the accuracy of the monitoring module in the respiratory monitoring equipment. The present disclosure can detect end-tidal carbon dioxide monitoring modules of two sampling types of mainstream type and side-flow type, and meets the requirements of relevant verification regulations. At the same time, the system also provides the self-calibration evaluation function of the respiratory rhythm generating equipment, which ensures the reliability of the accuracy detection of the respiratory monitoring equipment.

FIG. 8 shows a flow chart of some embodiments of an accuracy detection method of a breathing monitoring device according to the present disclosure. The method is carried out based on the accuracy detection system for respiratory monitoring equipment provided by the embodiment shown in FIG. 6 , and includes the following steps:

S801. Acquire a breathing parameter set on a breathing rhythm generating device in the system, where the breathing parameter includes a first carbon dioxide parameter.

Before implementing step S801 of this method, it is necessary to install the respiratory monitoring device accuracy detection system provided in the embodiment shown in FIG. 6 and set the respiratory parameters. specifically,

First, connect the gas circuit, connect the standard gas inlet 5 with the gas outlet of the carbon dioxide standard gas cylinder, and connect the modulated gas outlet 6 with the monitoring modules of the breathing monitoring equipment in one-to-one correspondence.

Secondly, connect the power supply of the respiratory rhythm generating device, connect the monitoring module of the respiratory monitoring device to the modulated gas outlet 6 of the respiratory rhythm generating device, and select the corresponding main flow or side flow connection accessories according to the type of the monitoring module.

Finally, the respiration monitoring equipment is started, and the end-tidal carbon dioxide probe in the monitoring module is thermally processed. Turn on the power of the respiratory rhythm generator, and press to set the end-tidal carbon dioxide parameter display value after the screen is on. The breathing parameters can be set as required through the upper button 8, the lower button 9 and the cursor button 10. Specifically, the breathing parameters may include the first carbon dioxide gas concentration, the breathing rate, the inspiratory volume, the expiratory volume, and the inhalation-to-breath ratio.

After the parameter setting is completed, the respiratory parameters set on the respiratory rhythm generating device can be obtained.

S802, controlling the breathing rhythm generating device to generate expiratory gas based on the breathing parameter.

In this step, the input time period, input concentration, etc. A of the carbon dioxide standard gas and air, respectively, are determined according to the breathing parameters in step S801. As shown in FIG. 9 , when the rhythm generating device starts to work, the first solenoid valve 1 is opened, and the carbon dioxide standard gas enters the generator through the standard gas inlet 5 through the hose according to the input concentration, and is discharged through the modulating gas outlet 6. During this process, the second solenoid valve 2 is closed, and the third solenoid valve 3 needs to be opened, and the air is discharged through the third solenoid valve 3; according to the set time period, the first solenoid valve 1 is closed, and carbon dioxide standard gas is prohibited from entering the gas The third solenoid valve 3 is closed, so that the positive pressure pump can apply positive air pressure to the second solenoid valve 2, the second solenoid valve 2 is opened, and the air passes through the modulating gas outlet 6 according to the input concentration. According to the above process, carbon dioxide standard gas and air are alternately discharged, and the simulation of the breathing change law is realized, and the exhaled gas is obtained.

S803: Determine the second carbon dioxide concentration of the expiratory gas through the monitoring module of the breathing monitoring device in the system.

In this step, the second carbon dioxide concentration of the expiratory gas is obtained through detection by the end-tidal carbon dioxide probe in the monitoring module. Optionally, the dynamic curve indication function with respiratory rate and standard gas output can be used to display the changes of respiratory rate and carbon dioxide standard gas output during the simulation process on the display panel of the respiratory rhythm generating device.

S804, compare and calculate the first carbon dioxide concentration and the second carbon dioxide concentration.

S805, based on the comparison result obtained by the comparison calculation, determine the accuracy of the respiration monitoring device.

In this step, the second carbon dioxide parameter read by the monitoring module can be input into the respiratory rhythm generating device through the control button, and the controller in the respiratory rhythm generating device compares the first carbon dioxide concentration with the second carbon dioxide concentration, According to the comparison result, the monitoring of the accuracy of the end-tidal carbon dioxide monitoring module in the respiratory monitoring device is realized.

Further, as some optional embodiments of the present disclosure, self-calibration evaluation can be performed on the respiratory rhythm generating device. Specifically, the breathing parameter includes a first breathing frequency, and the method further includes: reading a breathing rhythm waveform curve generated by the breathing rhythm generating device through a digital oscilloscope in the system; the breathing rhythm generating device is based on the The respiratory rhythm waveform curve calculates the second respiratory frequency; the first respiratory frequency and the second respiratory frequency are compared and calculated; and the accuracy of the respiratory rhythm generating device is determined based on the comparison result obtained by the comparison calculation.

Specifically, first, connect the calibration port 7 of the respiratory rhythm generating device to the signal input terminal of the digital oscilloscope. Turn on the power of the respiratory rhythm generator, and after the screen lights up, use the cursor keys to set the value of the first respiratory rate. As shown in Figure 7, the digital oscilloscope can display the respiratory rhythm waveform curve of the respiratory rhythm generating device. Read the cycle T of the respiratory rhythm waveform curve through a digital oscilloscope, calculate the second respiratory frequency value, and compare it with the first respiratory frequency value preset by the respiratory rhythm generating device, so as to realize the accuracy of the respiratory rhythm generating device. Evaluation.

The method of the accuracy detection system for respiratory monitoring equipment proposed in the present disclosure can truly and accurately simulate the changing laws of human respiration, and cooperate with carbon dioxide standard gas of different concentrations to detect the accuracy of monitoring modules in functional equipment with respiratory parameter monitoring. In addition, in order to ensure that the respiratory rhythm generating device can simulate the changing law of human respiration according to the set respiratory frequency parameters, the method also provides an evaluation function of the accuracy of the device to ensure the reliability of the self-calibration detection of the respiratory monitoring device.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more logical functions for implementing the specified functions executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in dedicated hardware-based systems that perform the specified functions or operations , or can be implemented in a combination of dedicated hardware and computer instructions.

The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), Systems on Chips (SOCs), Complex Programmable Logical Devices (CPLDs), etc.

The above descriptions are merely some preferred embodiments of the present disclosure and illustrations of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover, without departing from the above-mentioned inventive concept, the above-mentioned Other technical solutions formed by any combination of technical features or their equivalent features. For example, a technology formed by replacing the above-mentioned features with the technical features disclosed in the embodiments of the present disclosure (but not limited to) with similar functions.

Claims (10)

1. A respiratory rhythm generating device, comprising: the controller is provided with an electromagnetic valve and a positive pressure pump which are arranged on the bottom plate of the equipment, and a standard gas inlet and a modulated gas outlet which are arranged on the side panel of the equipment; wherein,

the electromagnetic valve is used for controlling input and output of gas, the electromagnetic valve comprises a first electromagnetic valve used for inputting carbon dioxide standard gas and a second electromagnetic valve used for inputting air, two ends of the first electromagnetic valve are respectively connected with the standard gas inlet and the modulating gas outlet through hoses, and two ends of the second electromagnetic valve are respectively connected with the positive pressure pump and the modulating gas outlet through hoses;

the positive pressure pump is used for applying positive air pressure to the second electromagnetic valve;

the controller is used for controlling the equipment to operate, and is electrically connected with the electromagnetic valve and the positive pressure pump.

2. The apparatus according to claim 1, wherein the solenoid valves further include a third solenoid valve for discharging air, an open-closed state of the third solenoid valve being opposite to an open-closed state of the second solenoid valve, and the positive pressure pump is connected to the third solenoid valve and the second solenoid valve through a hose tee, respectively, and is adapted to apply positive air pressure to the third solenoid valve when the third solenoid valve is open.

3. The device according to claim 1 or 2, wherein a display panel and control keys are provided outside the device, and the controller is electrically connected with the display panel and the control keys.

4. The apparatus of claim 3, wherein the controller comprises a power module, a solenoid valve driving module, a key control module, and a display module; wherein,

the power supply module is used for realizing the power supply function of the equipment;

the electromagnetic valve driving module is electrically connected with the electromagnetic valve and used for controlling the opening and closing of the electromagnetic valve;

the key module is electrically connected with the control key and is used for setting respiratory parameters and monitoring parameters of external equipment;

the display module is electrically connected with the display panel and used for displaying the breathing parameters and the error information.

5. The apparatus of claim 4, wherein the controller further comprises an air pressure measurement module and a data processing module; wherein,

the air pressure measuring module is used for measuring the ambient atmospheric pressure;

the data processing module is used for calculating and processing the monitoring data.

6. The apparatus of claim 1 or 2, wherein the apparatus side panel is further provided with a calibration port for calibrating the apparatus.

7. A respiratory monitoring device accuracy detection system, comprising: a carbon dioxide standard gas cylinder, a respiratory rhythm generation device and a respiratory monitoring device according to any one of claims 1 to 6; wherein,

the air outlet of the carbon dioxide standard gas cylinder is connected with the standard gas inlet of the breathing rhythm generating equipment through a hose;

and the monitoring module of the respiration monitoring equipment is connected with the modulated gas outlet of the respiration rhythm generating equipment through a hose.

8. The system of claim 7, further comprising a digital oscilloscope, a signal input of the digital oscilloscope being connected to the calibration port of the respiratory rhythm generation device.

9. A detection method based on the respiratory monitoring device accuracy monitoring system of claim 7, characterized by comprising the following steps:

acquiring a respiratory parameter set on a respiratory rhythm generating device in the system, wherein the respiratory parameter comprises a first carbon dioxide concentration;

controlling the respiratory rhythm generation device to produce expiratory gas based on the respiratory parameter;

determining, by a monitoring module of a respiratory monitoring device in the system, a second carbon dioxide concentration of the expiratory gas;

comparing the first carbon dioxide concentration with the second carbon dioxide concentration;

and determining the accuracy of the respiration monitoring equipment based on a comparison result obtained by the comparison calculation.

10. The detection method of claim 9, wherein the breathing parameter further comprises a first breathing frequency, the detection method further comprising:

reading a respiratory rhythm waveform curve generated by the respiratory rhythm generating equipment through a digital oscilloscope in the system;

the respiratory rhythm generation device calculates a second respiratory frequency based on the respiratory rhythm waveform curve;

comparing the first respiratory rate with the second respiratory rate;

and determining the accuracy of the respiratory rhythm generating equipment based on a comparison result obtained by the comparison calculation.

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