A detection system

Abstract

The present application relates to the field of equipment control technology, and discloses a detection system, including: a detection device and a signal processing device, the detection device is communicatively connected with the signal processing device, the detection device includes: a common breathing air circuit, a first air circuit, a second air circuit, an oral pressure sensor, a reversing valve and an atomizing cup, the common breathing air circuit includes a front-end air circuit and a rear-end air circuit, the rear-end air circuit is respectively connected to the first air circuit and the second air circuit through a reversing valve, and the atomizing cup is connected to the second air circuit; the oral pressure sensor is used to obtain the actual pressure of the front-end air circuit; the signal processing device is used to control the reversing valve to close the first air circuit and open the second air circuit if the actual pressure is less than the first pressure threshold, so that the medicine in the atomizing cup enters the common breathing air circuit; the signal processing device is also used to control the reversing valve to close the second air circuit and open the first air circuit if the actual pressure is greater than or equal to the first pressure threshold. The present application can avoid cross infection during the detection process.

Description

Technical Field

[0001] The present application relates to the field of equipment control technology, and in particular to a detection system. Background Art

[0002] With the development of economy and the progress of society, people are paying more and more attention to the diagnosis and prevention of respiratory system abnormalities. The airway response test system is a device used to detect and monitor the patient's airway response, and is often used for the early evaluation and diagnosis of various respiratory system abnormalities. Since the subject needs to inhale the excitation agent spray and measure the respiratory impedance at the same time, the excitation agent and the flow rate sensor are connected to the main airway, which causes the subject to use a large public breathing airway when exhaling and inhaling, which will inevitably cause some of the subject's saliva molecules to enter the airway response test system with the exhalation, thereby increasing the risk of cross infection. Summary of the invention

[0003] The present application provides a detection system to solve the problem of cross infection that may occur during detection.

[0004] In a first aspect, the present application provides a detection system, including a detection device and a signal processing device, wherein the detection device is communicatively connected to the signal processing device, and the detection device includes: a common breathing air circuit, a first air circuit, a second air circuit, an oral pressure sensor, a reversing valve, and an atomizing cup, wherein the common breathing air circuit includes a front-end air circuit and a rear-end air circuit, wherein the front-end air circuit is connected to the oral pressure sensor, and the rear-end air circuit is respectively connected to the first air circuit and the second air circuit through the reversing valve, and the atomizing cup is connected to the second air circuit;

[0005] The oral pressure sensor is used to obtain the actual pressure of the front-end gas path;

[0006] The signal processing device is used to control the reversing valve to close the first gas circuit and open the second gas circuit if the actual pressure is less than a first pressure threshold, so that the medicine in the nebulizer cup enters the common breathing gas circuit;

[0007] The signal processing device is further used to control the reversing valve to close the second gas path and open the first gas path if the actual pressure is greater than or equal to a first pressure threshold.

[0008] In one embodiment, the detection device further comprises: a flow rate sensor, wherein the flow rate sensor is connected to the first gas path;

[0009] The flow rate sensor is used to obtain the first gas flow rate of the first gas path before the atomizer cup is turned on;

[0010] After the atomizer cup is turned on and the second gas path is opened, a second gas flow rate of the first gas path is obtained.

[0011] In one embodiment, the oral pressure sensor is used to:

[0012] Before the atomizer cup is turned on, a first oral cavity pressure is obtained; the time of obtaining the first oral cavity pressure is the same as the time of obtaining the first gas flow rate;

[0013] And, after the atomizer cup is turned on and the second gas path is opened, the second oral cavity pressure is obtained; the time of obtaining the second oral cavity pressure is the same as the time of obtaining the second gas flow rate.

[0014] In one embodiment, the signal processing device is further used for:

[0015] Calculating a first respiratory impedance according to the first oral pressure and the first gas flow rate;

[0016] Calculating a second respiratory impedance according to the second oral cavity pressure and the second gas flow rate;

[0017] The atomizer cup is controlled to be turned on or off according to the impedance difference between the first respiratory impedance and the second respiratory impedance.

[0018] In one embodiment, the detection device further comprises: an oscillation generator, the oscillation generator being connected to the second gas path;

[0019] The oscillation generator is used to generate an oscillation wave, and the gas in the second gas circuit is driven to the common breathing gas circuit by the oscillation wave, so that the gas in the common breathing gas circuit generates an initial flow rate.

[0020] In one embodiment, the first pressure threshold is set according to the atmospheric pressure, and the signal processing device is further used for:

[0021] If the actual pressure is greater than or equal to the first pressure threshold, it is determined that the current phase is the exhalation phase;

[0022] If the actual pressure is less than the first pressure threshold, it is determined that the current phase is the inhalation phase.

[0023] In one embodiment, the detection device further comprises a filter, and the filter is connected to the first gas path;

[0024] The filter is configured to be opened when the first gas path is opened;

[0025] Or, it is turned on after the detection device is started.

[0026] In one embodiment, the number of the atomizing cups is multiple;

[0027] The signal processing device is also used to open one of the multiple nebulizer cups in sequence according to a preset order, and input the medicine in the nebulizer cup into the second gas path, wherein the medicine includes physiological saline, an stimulant and a diastolic agent.

[0028] This application has the following beneficial effects:

[0029] The detection system provided by the present application divides the detection air circuit into a common breathing air circuit, a first air circuit, and a second air circuit, and realizes the connection between the common breathing air circuit, the first air circuit, and the second air circuit through a reversing valve. The user's breathing state is determined by detecting the pressure of the front-end air circuit of the common breathing air circuit, and the reversing valve is controlled according to the user's breathing state to adjust the opening and closing of the first air circuit and the second air circuit, so that the user can inhale and exhale respectively through different air circuits, avoiding the problem of cross infection caused by the user using the same air circuit when breathing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection of the present application. For ordinary technicians in this field, other related drawings can also be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram showing a detection principle provided by an embodiment of the present application is shown;

[0032] Figure 2 A schematic diagram of the structure of a detection device provided in an embodiment of the present application is shown;

[0033] Figure 3 An exploded schematic diagram of a detection device provided in an embodiment of the present application is shown;

[0034] Figure 4 A cross-sectional view of a detection device provided in an embodiment of the present application is shown.

[0035] Description of main component symbols:

[0036] 100. Detection device; 101. Front-end air circuit; 102. Back-end air circuit; 103. Reversing valve; 104. First air circuit; 105. Filter; 106. Flow rate sensor; 107. Mouthpiece; 108. Oral pressure sensor; 109. Second air circuit; 110. Nebulizer cup; 111. Oscillator generator; 112. Common breathing air circuit. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0038] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0039] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present application, are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing items or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing items.

[0040] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0041] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0042] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] Reference Figure 1 , Figure 1 A schematic diagram of a detection principle provided in this embodiment.

[0044] The detection device 100 includes: a common breathing air circuit 112, a first air circuit 104, a second air circuit 109, an oral pressure sensor 108, a reversing valve 103 and a nebulizer cup 110. The common breathing air circuit 112 includes a front-end air circuit 101 and a rear-end air circuit 102. The front-end air circuit 101 is connected to the oral pressure sensor 108, and the rear-end air circuit 102 is respectively connected to the first air circuit 104 and the second air circuit 109 through the reversing valve 103. The nebulizer cup 110 is connected to the second air circuit 109. The reversing valve 103 can be a three-channel reversing valve, and the three channels are respectively connected to the common breathing air circuit 112, the first air circuit 104 and the second air circuit 109. A valve is also arranged in the middle of the reversing valve. By turning the valve, one of the first air circuit 104 and the second air circuit 109 can be blocked. Moreover, when the first air circuit 104 is blocked, the second air circuit 109 will be opened, and when the first air circuit 104 is opened, the second air circuit 109 will be blocked.

[0045] The signal processing device can be a microprocessor chip or computer or other equipment carried by the detection system. The signal processing device can communicate with any communicative device in the detection system and perform corresponding control.

[0046] The front end air circuit 101 may also be provided with a mouthpiece 107, for the subject to be tested to bite the mouthpiece 107 and breathe through the mouthpiece 107 during the test. A filter 105 and a flow rate sensor 106 may be provided on the first air circuit 104, and an oscillation generator 111 may be provided at the end of the second air circuit 109.

[0047] The oral pressure sensor is used to obtain the actual pressure of the front-end air path.

[0048] like Figure 1 As shown, when the subject breathes through the mouthpiece 107, the actual pressure of the front-end air path 101 can be detected by the oral pressure sensor 108, and the actual pressure can be regarded as the oral pressure of the user when breathing.

[0049] The signal processing device is used to control the reversing valve to close the first gas circuit and open the second gas circuit if the actual pressure is less than a first pressure threshold, so that the medicine in the nebulizer cup enters the common breathing gas circuit.

[0050] The user's oral pressure is different during the inhalation and exhalation stages. The oral pressure during exhalation is usually greater than that during inhalation. In order to prevent the saliva molecules of the subject from entering the interior of the testing device and causing cross infection, two different air paths can be set, namely the first air path and the second air path. The second air path is opened when the user inhales, and the first air path is opened when the user exhales, so that the user uses different air paths for inhalation and exhalation, thereby reducing the risk of cross infection.

[0051] Therefore, when it is detected that the actual pressure is less than the first threshold value, it is determined that the subject is in the inhalation state at this time, and the reversing valve 103 can be controlled to close the first air circuit 104 and open the second air circuit 109, so that the medicine in the nebulizer cup 110 enters the common breathing air circuit 112. At this time, the gas only flows between the common breathing air circuit 112 and the second air circuit 109, so that the user can inhale the medicine in the nebulizer cup 110.

[0052] The first threshold may be the pressure value of the current atmospheric pressure. For example, the pressure greater than the atmospheric pressure may be defined as positive, and the pressure less than the atmospheric pressure may be defined as negative. When the actual pressure is detected to be a negative number, it is determined that the subject is in an inhaling state at this time. When the actual pressure is detected to be zero or a positive number, it is determined that the subject is in an exhaling state at this time.

[0053] The signal processing device is further used to control the reversing valve to close the second gas path and open the first gas path if the actual pressure is greater than or equal to a first pressure threshold.

[0054] When it is detected that the actual pressure is greater than or equal to the first threshold, it is determined that the subject is in the exhalation state at this time, and the reversing valve 103 can be controlled to close the second air path 109 and open the first air path 104. At this time, the gas exhaled by the subject only flows between the common breathing air path 112 and the second air path 109.

[0055] In this embodiment, the detection gas circuit is divided into a common breathing gas circuit 112, a first gas circuit 104, and a second gas circuit 109, and the rear end gas circuit 102 of the common breathing gas circuit 112 is connected with the first gas circuit 104 and the second gas circuit 109 through the reversing valve 103, and the breathing state of the user is determined by detecting the pressure of the front end gas circuit 101 of the common breathing gas circuit 112. The reversing valve 103 is controlled according to the breathing state of the user to adjust the opening and closing of the first gas circuit 104 and the second gas circuit 109, so that the user can inhale and exhale respectively through different gas circuits, thereby avoiding the problem of cross infection caused by the user using the same gas circuit when breathing.

[0056] In one embodiment, the flow rate sensor is used to obtain the first gas flow rate of the first gas path through the flow rate sensor before the atomizer cup is turned on;

[0057] It is also used to obtain the second gas flow rate of the first gas path through the flow rate sensor after the atomizer cup is turned on and the second gas path is opened.

[0058] The oral pressure sensor is used to obtain a first oral pressure through the oral pressure sensor before the atomizer cup is turned on; the time of obtaining the first oral pressure is the same as the time of obtaining the first gas flow rate;

[0059] And, after the atomizer cup is turned on and the second gas path is opened, the second oral cavity pressure is obtained through the oral cavity pressure sensor; the time of obtaining the second oral cavity pressure is the same as the time of obtaining the second gas flow rate. The signal processing device is used to calculate the first respiratory impedance according to the first oral cavity pressure and the first gas flow rate;

[0060] Calculating a second respiratory impedance according to the second oral cavity pressure and the second gas flow rate;

[0061] The atomizer cup is controlled to be turned on or off according to the impedance difference between the first respiratory impedance and the second respiratory impedance.

[0062] Respiratory impedance is mainly calculated based on the oral pressure and expiratory flow rate of the subject. The specific calculation method is: Respiratory impedance = oral pressure / expiratory flow rate. In order to ensure the accuracy of the calculation of respiratory impedance, it is necessary to ensure that the oral pressure and expiratory flow rate are obtained at the same time or in the same time period.

[0063] For example, before the nebulizer cup is turned on, when the subject starts to breathe through the detection device, such as after 2 seconds of stable breathing, the first oral pressure of the subject is obtained through the oral pressure sensor, and the first exhalation flow of the subject is obtained through the flow sensor. The first respiratory impedance is calculated based on the first oral pressure and the first exhalation flow.

[0064] After the nebulizer cup is turned on and the second air circuit is opened, the medicine in the nebulizer cup enters the second air circuit, and then the oscillation generator generates an oscillation wave to apply pressure to the second air circuit, so that the airflow in the second air circuit produces an initial flow rate, so that the medicine in the second air circuit enters the common breathing air circuit and is inhaled by the subject.

[0065] For example, 2 seconds after the second air path is opened, the second oral pressure of the subject to be tested can be obtained through the oral pressure sensor, and the second exhalation flow of the subject to be tested can be obtained through the flow sensor. Then, the second respiratory impedance is calculated based on the second oral pressure and the second exhalation flow. The respiratory impedance can reflect the degree of the corresponding symptoms of the subject to be tested. When the difference in respiratory impedance is large, the signal processing device can control the atomization cup to close, or control the detection process to stop.

[0066] In one embodiment, the oscillation generator is used to generate an oscillation wave, and the gas in the second gas circuit is driven to the common breathing gas circuit by the oscillation wave, so that the gas in the common breathing gas circuit generates an initial flow rate.

[0067] like Figure 1As shown, there is a distance between the nebulizer cup 110 and the mouthpiece 107. Therefore, after the medicine in the nebulizer cup 110 is injected into the second airway, it takes a certain amount of time to spread to the mouthpiece 107. In order to speed up the process, an oscillation generator 111 can be set at the end of the second airway. The oscillation generator 111 can emit an oscillation wave, and an initial pressure is applied to the direction of the mouthpiece 107 through the oscillation wave. The initial pressure can accelerate the movement of the medicine injected by the nebulizer cup 110 toward the mouthpiece 107 and then be inhaled by the subject. Moreover, the initial pressure can make the gas in the second airway and the common breathing airway generate an initial flow rate and pressure, and its function is similar to applying an excitation signal to the entire detection device to facilitate subsequent detection.

[0068] In this embodiment, an oscillation generator 111 is provided at the end of the second airway so that the medicine in the atomizer cup 110 can be delivered to the mouthpiece 107 to be inhaled by the test subject more quickly, thereby improving the test efficiency and providing an initial flow rate for the gas in the detection device to facilitate subsequent detection.

[0069] In one embodiment, the filter is used to:

[0070] opening when the first gas path is opened;

[0071] Or, it is turned on after the detection device is started.

[0072] The filter 105 may be an electric filter 105. When the first gas path 104 is opened, it indicates that the subject is in the exhalation stage. At this time, opening the filter 105 can absorb the gas and medicine exhaled by the subject, thereby preventing the gas from being directly discharged into the external environment and causing pollution.

[0073] The filter 105 can also be a fixed filter 105 such as a filter tip. In order to prevent dust and moisture, a corresponding switch can also be set so that the filter 105 is turned on when the detection device 100 is started. Alternatively, in order to save costs, the filter 105 can be directly fixed in the first airway to achieve real-time filtering.

[0074] In this embodiment, a filter 105 is arranged in the first airway to absorb the gas exhaled by the subject and the medicine together to avoid environmental pollution.

[0075] Reference Figure 2 , Figure 3 and Figure 4 , Figure 2 A schematic diagram of the structure of a detection device provided in this embodiment.

[0076] Figure 3 An exploded schematic diagram of a detection device provided in this embodiment.

[0077] Figure 4 This is a cross-sectional view of a detection device provided in this embodiment.

[0078] A plurality of nebulizer cups 110 may be provided in the detection device 100 . The nebulizer cups 110 may be provided on both sides of the second gas path 109 . The concentration of the medicine in each nebulizer cup 110 is different.

[0079] In one embodiment, the signal processing device is further used for:

[0080] According to a preset sequence, one of the plurality of nebulizer cups 110 is opened in turn, and the medicine in the nebulizer cup 110 is input into the second gas path 109 , wherein the medicine includes physiological saline, an irritant, and a diastolic agent.

[0081] Each nebulizer cup 110 is provided with a corresponding switch. When a nebulizer cup 110 needs to be used for testing, it is only necessary to control the corresponding switch to be turned on to deliver the medicine in the nebulizer cup 110 to the second airway. In the actual test process, physiological saline is usually first nebulized and then input into the second airway to determine whether the subject can adapt to subsequent testing. If so, the test is then carried out in sequence according to the concentration of the stimulant in the nebulizer cup 110 storing the stimulant.

[0082] For example, the stimulant concentration in a nebulizer cup 110 is 0.1, the stimulant concentration in b nebulizer cup 110 is 0.2, and the stimulant concentration in c nebulizer cup 110 is 0.3. When performing the test, the test is usually started from a nebulizer cup 110. If the subject does not react, the atomizer cup 110 is closed and the b nebulizer cup 110 is opened, and so on, until the stimulants in all the nebulizer cups 110 are tested, or until the second respiratory impedance of the subject reaches a certain threshold, it means that the subject has reacted, and the test can be stopped at this time.

[0083] In one embodiment, there is at least one target nebulizer cup among the plurality of nebulizer cups, and the target nebulizer cup stores a diastolic agent, and the signal processing device is further used for:

[0084] If the respiratory impedance is abnormal, the injection of the drug into the second gas path 109 is stopped, and the diastolic agent is injected into the second gas path 109 .

[0085] During the testing of certain lung function items, the subject may have an allergic reaction, such as asthma, at any time. At this time, the second respiratory impedance rises to a certain threshold, or the subject has wheezing and severe coughing in the lungs. At this time, the signal processing device can immediately terminate the testing process and inject dilators and other agents into the second air path 109. The dilator can be a drug that eliminates the user's reaction, thereby ensuring the user's safety.

[0086] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or the flow diagram, and the combination of boxes in the structure diagram and / or the flow diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0087] In addition, the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0088] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

[0089] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A detection system, characterized in that: It comprises a detection device and a signal processing device, the detection device is communicatively connected with the signal processing device, the detection device comprises: a common breathing air circuit, a first air circuit, a second air circuit, an oral pressure sensor, a reversing valve and an atomizing cup, the common breathing air circuit comprises a front-end air circuit and a rear-end air circuit, the front-end air circuit is connected with the oral pressure sensor, the rear-end air circuit is respectively connected with the first air circuit and the second air circuit through the reversing valve, and the atomizing cup is connected with the second air circuit; The oral pressure sensor is used to obtain the actual pressure of the front-end gas path; The signal processing device is used to control the reversing valve to close the first gas circuit and open the second gas circuit if the actual pressure is less than a first pressure threshold, so that the medicine in the nebulizer cup enters the common breathing gas circuit; The signal processing device is further configured to control the reversing valve to close the second gas path and open the first gas path if the actual pressure is greater than or equal to a first pressure threshold; The signal processing device is further used for: If the actual pressure is greater than or equal to the first pressure threshold, it is determined that the current phase is the exhalation phase; If the actual pressure is less than the first pressure threshold, it is determined that the current phase is the inhalation phase.

2. The detection system according to claim 1, characterized in that: The detection device further comprises: a flow rate sensor, wherein the flow rate sensor is connected to the first gas path; The flow rate sensor is used to obtain the first gas flow rate of the first gas circuit before the atomizer cup is turned on; and to obtain the second gas flow rate of the first gas circuit after the atomizer cup is turned on and the second gas circuit is opened.

3. The detection system according to claim 2, characterized in that: The oral cavity pressure sensor is used to obtain a first oral cavity pressure before the atomizer cup is turned on; the time of obtaining the first oral cavity pressure is the same as the time of obtaining the first gas flow rate; And, after the atomizer cup is turned on and the second gas path is opened, the second oral cavity pressure is obtained; the time of obtaining the second oral cavity pressure is the same as the time of obtaining the second gas flow rate.

4. The detection system according to claim 3, characterized in that: The signal processing device is further used for: Calculating a first respiratory impedance according to the first oral pressure and the first gas flow rate; Calculating a second respiratory impedance according to the second oral cavity pressure and the second gas flow rate; The atomizer cup is controlled to be turned on or off according to the impedance difference between the first respiratory impedance and the second respiratory impedance.

5. The detection system according to claim 1, characterized in that: The detection device further includes: an oscillation generator, the oscillation generator being connected to the second gas path; The oscillation generator is used to generate an oscillation wave, and the gas in the second gas circuit is driven to the common breathing gas circuit by the oscillation wave, so that the gas in the common breathing gas circuit generates an initial flow rate.

6. The detection system according to claim 1, characterized in that: The detection device further comprises a filter, and the filter is connected to the first gas path; The filter is configured to be opened when the first gas path is opened; Or, it is turned on after the detection device is started.

7. The detection system according to claim 1, characterized in that: The number of the atomizing cups is multiple; The signal processing device is also used to open one of the multiple nebulizer cups in sequence according to a preset order, and input the medicine in the nebulizer cup into the second gas path, wherein the medicine includes physiological saline, an stimulant and a diastolic agent.

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