A respiratory frequency acquisition method and device for oxygen inhalation monitoring

Abstract

A respiratory rate collection method and device for oxygen inhalation monitoring, including step one, collecting oral and / or nasal respiratory sound data, and transmitting the oral and / or nasal respiratory sound data to a controller; step two, collecting oral and / or nasal environmental sound data, and transmitting the oral and / or nasal environmental sound data to a controller; step three, after cross-contrast, removing the data of the oral and / or nasal respiratory sound data with the same waveform as the oral and / or nasal environmental sound data, to obtain actual oral and / or nasal respiratory sound data. The present invention uses respiratory sound data and environmental sound data for comparison and noise elimination, and then uses a controller to analyze and compare to obtain accurate respiratory sound data, and then obtain respiratory rate data.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen therapy monitoring equipment, and in particular to a respiratory frequency acquisition method and device for oxygen inhalation monitoring. Background Art

[0002] The main purpose of oxygen therapy is to correct hypoxemia in the human body, reduce the work of breathing and the load on the heart, prevent and reverse tissue damage and organ dysfunction caused by hypoxia, and try to maintain the patient's ability to move. The main risks of oxygen therapy are failure to effectively correct hypoxemia, aggravation of carbon dioxide retention, and even oxygen poisoning. The principle of standardized oxygen therapy is to ensure its safety and effectiveness. There are two well-known clinical controlled trials in the world that can clearly prove the effectiveness and corresponding conditions of home oxygen therapy, which are also the scientific basis for many countries to include home oxygen therapy in the national health insurance system.

[0003] In the 1970s, the National Institutes of Health (NIH) Nocturnal Oxygen Therapy Trial (NOTT) and the British Medical Research Council Clinical Trial (MRC) showed that the improvement in the five-year survival rate of COPD patients with chronic hypoxemia was proportional to the duration of oxygen therapy per day (hours). The survival rate of patients who did not receive supplemental oxygen therapy was the worst; the survival rate of patients who received 12 to 15 hours of oxygen therapy per day was better; and the survival rate of patients who received continuous oxygen therapy for nearly 24 hours with a mobile oxygen system was the best.

[0004] The treatment guidelines of the American Thoracic Society (ATS), the European Respiratory Society (ERS), the National Institute for Health and Clinical Excellence (NICE) and other countries have clearly defined the prescription standards and treatment goals for home oxygen therapy. The authoritative Chinese medical textbooks have also included the indications and indications for oxygen therapy in the "Internal Medicine" textbook. The core content of the guidelines of various countries is similar to the standards set by the American Thoracic Society (ATS). Hypoxemia occurs during the progression of COPD or the arterial oxygen pressure PaO2 <55mmHg or arterial oxygen saturation SaO2 <88% or arterial oxygen pressure PaO2 = 55-59mmHg in the stable period after acute exacerbation of COPD, accompanied by cor pulmonale, polycythemia, pulmonary hypertension, etc. Treatment goal: PaO2>60mmHg (SaO2>90%) is guaranteed at rest, sleep and activity, and the daily oxygen inhalation time is more than 15 hours, preferably 18-24 hours.

[0005] According to relevant literature at home and abroad, in terms of compliance and treatment effect, oxygen therapy quality management methods are generally lacking, and the monitoring effect is relatively poor. This is mainly manifested in: whether the patient is breathing oxygen, how long the oxygen is inhaled, how much flow, whether the doctor's orders are followed, and the effect of the patient's oxygen inhalation (blood oxygen saturation, respiratory rate, symptom improvement, mental state, appetite, etc.)

[0006] The present invention aims at solving the above problems and focuses on real-time monitoring of oxygen inhalation, oxygen inhalation time, respiratory rate, etc. In particular, clinical studies have shown that monitoring the variability of respiratory rate can effectively predict acute attacks of COPD and provide an effective means for early intervention.

[0007] The European Patent Office patent number applied for by the French company SRETT is EP3146 897A1. It is a technology used to solve the problem of determining the respiratory rate and oxygen flow measurement during nasal cannula oxygen inhalation. The proposed solution is to use two MEMS microphones, a MEMS pressure sensor and an ambient pressure sensor, combined with a flow-blocking structure using computational fluid dynamics (CFD), differential circuits, filter circuits, respiratory rate, flow calculation circuits, etc. to obtain the patient's respiratory rate and oxygen flow.

[0008] This solution has the following shortcomings: 1. Because the pressure change signal caused by breathing is weak, the selected sensor needs to meet high precision requirements; 2. Because the sampling calculation amount is relatively large and the device needs to save energy and power, the selection requirements for the main control microcontroller (MCPU) or DSP processor are relatively high; 3. The above factors 1 and 2 will lead to increased costs, which is not conducive to promotion and application. Summary of the invention

[0009] The object of the present invention is to provide a respiratory rate acquisition method for oxygen uptake monitoring with high accuracy.

[0010] Another object of the present invention is to provide a respiratory rate acquisition device with high accuracy for oxygen uptake monitoring.

[0011] To achieve the above object, the present invention adopts the following technical solution:

[0012] A method for collecting respiratory rate for oxygen uptake monitoring is provided, comprising:

[0013] Step 1, collecting oral and / or nasal breathing sound data, and transmitting the oral and / or nasal breathing sound data to a controller;

[0014] Step 2, collecting ambient sound data of the mouth and / or nose, and transmitting the ambient sound data of the mouth and / or nose to the controller;

[0015] Step three, after difference comparison, remove the data with the same waveform as the ambient sound data of the mouth and / or nose from the breathing sound data of the mouth and / or nose, and obtain the actual breathing sound data of the mouth and / or nose.

[0016] Wherein, the collecting of the breathing sound data of the mouth and / or nose includes using a breathing sound catheter and a microphone, the microphone collects the breathing sound data of the mouth and / or nose through the breathing sound catheter, and the sound receiving part of the breathing sound catheter is located at the mouth and / or nose.

[0017] The environmental sound data of the mouth and / or nose are collected, including through an environmental sound receiving duct and a microphone. The microphone collects the environmental sound data of the mouth and / or nose through the environmental sound receiving duct. The sound receiving part of the environmental sound receiving duct is located near the sound receiving part of the respiratory sound duct.

[0018] Another object of the present invention is achieved by the following scheme:

[0019] A respiratory rate acquisition device for oxygen uptake monitoring, comprising

[0020] Nasal cannula, used to administer oxygen to the patient;

[0021] An oxygen pipeline, connected to the nasal cannula, for supplying oxygen;

[0022] A breathing sound collection mechanism, used to collect breathing sounds from the mouth and / or nose;

[0023] An oxygen flow monitoring mechanism; one end of which is connected to an oxygen pipeline and the other end of which is connected to a nasal cannula, and oxygen is output to the nasal cannula through the oxygen pipeline and the oxygen flow monitoring mechanism;

[0024] A breathing environment sound collection mechanism is used to collect environmental sound data of the mouth and / or nose;

[0025] The controller receives the breathing sound data and the environmental sound data, cross-compares the breathing sound data and the environmental sound data, obtains the actual breathing sound data, and calculates the breathing frequency.

[0026] Among them, the respiratory sound collection mechanism includes a detection body, the body is provided with a respiratory sound detection signal inlet for collecting nasal and / or oral respiratory sounds, and also includes a sound monitoring microphone for detecting nasal and / or oral respiratory sounds and transmitting the respiratory sound data to a controller; the detection body is configured as a tube body, the respiratory sound detection signal inlet is arranged on the tube body, the tube body is extended by a pipeline, the sound monitoring microphone is arranged on the pipeline, for collecting respiratory sound data transmitted by the pipeline, the monitoring body is provided with a baffle for collecting and amplifying nasal and / or oral respiratory airflow, and the respiratory sound detection signal inlet is arranged on the detection body on the side of the baffle facing the user.

[0027] The breathing environment sound collection mechanism includes an environment sound collecting duct and an environment sound collecting microphone to collect environment sound. The environment sound collecting microphone identifies the environment noise data transmitted by the environment sound collecting duct and sends it to the controller.

[0028] Wherein, an environmental sound receiving inlet is arranged on the upper part of the detection body for collecting and amplifying the environmental sound, and the sound receiving end of the environmental sound receiving duct is connected to the environmental sound receiving inlet through an environmental sound receiving pipeline.

[0029] Wherein, the controller includes an amplifier, a subtractor, a comparator, a microcontroller and a data analysis module connected to the microcontroller which are electrically connected in sequence; the respiratory sound data of the mouth and / or nose of the respiratory sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence; the environmental sound data of the mouth and / or nose of the respiratory environmental sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence; the data analysis module compares and analyzes the environmental sound data and the number of respiratory sounds of the mouth and / or nose, transmits the analysis results to the microcontroller, and the microcontroller calculates the respiratory frequency data.

[0030] It also includes a storage module, which is used to store the digital audio signal obtained by the analog-to-digital converter and the analysis result of the data analysis module.

[0031] It also includes a Bluetooth module and a display module. The Bluetooth module is used to transmit the respiratory rate data obtained by the microcontroller to the display module for display.

[0032] Beneficial effects:

[0033] A respiratory rate acquisition method for oxygen uptake monitoring, comprising:

[0034] Step 1, collecting oral and / or nasal breathing sound data, and transmitting the oral and / or nasal breathing sound data to a controller;

[0035] Step 2, collecting ambient sound data of the mouth and / or nose, and transmitting the ambient sound data of the mouth and / or nose to the controller;

[0036] Step three, after difference comparison, remove the data with the same waveform as the ambient sound data of the mouth and / or nose from the breathing sound data of the mouth and / or nose, and obtain the actual breathing sound data of the mouth and / or nose.

[0037] The present invention compares and eliminates noise by using breathing sound data and environmental sound data, and then uses a controller to analyze and compare to obtain accurate breathing sound data, and further obtain breathing frequency data. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide further understanding of the invention and constitute a part of this application. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute improper limitations on the invention.

[0039] Figure 1A schematic diagram of the structure of a respiratory rate acquisition device for oxygen uptake monitoring provided by an embodiment of the present invention;

[0040] Figure 2 The present invention is a schematic structural diagram of a respiratory sound collection mechanism of a respiratory rate collection device for oxygen uptake monitoring that is not connected to a nasal catheter.

[0041] Figure 3 The present invention is a schematic structural diagram of a respiratory sound collection mechanism connected to a nasal catheter of a respiratory rate collection device for oxygen uptake monitoring of the present invention.

[0042] Figure 4 The present invention is a schematic structural diagram of an oxygen flow monitoring mechanism of a respiratory rate acquisition device for oxygen uptake monitoring.

[0043] Figure 5 The present invention is a schematic diagram of the structure of a controller of a respiratory rate acquisition device for oxygen uptake monitoring.

[0044] Reference numerals:

[0045] 1——Nasal cannula, 2——Oxygen line,

[0046] 3——Breath sound collection mechanism

[0047] 301 - detection body, 302 - breathing sound detection signal entry, 303 - sound monitoring microphone, 304 - baffle, 305 - buckle, 306 - connection ear

[0048] 4——Oxygen flow monitoring mechanism

[0049] 401——Monitoring body, 402——Oxygen inlet, 403——Oxygen outlet,

[0050] 404 - first air inlet chamber, 405 - second air inlet chamber, 406 - one-way valve,

[0051] 407——Oxygen monitoring microphone,

[0052] 408——sound monitoring microphone placement cavity, 409——connection air port;

[0053] 5——Noise monitoring module

[0054] 501——ambient sound receiving duct, 502——ambient sound receiving microphone, 503——ambient sound receiving inlet, 504——ambient sound receiving pipeline. DETAILED DESCRIPTION

[0055] The technical solution provided by the present invention is described in more detail below with reference to the accompanying drawings.

[0056] Example 1 Figure 1-Figure 5 As shown,

[0057] A respiratory rate acquisition device for oxygen uptake monitoring, comprising

[0058] A nasal cannula 1, used to supply oxygen to the patient;

[0059] an oxygen pipeline 2, connected to the nasal cannula 1, for supplying oxygen;

[0060] A breathing sound collection mechanism 3, used to collect breathing sounds from the mouth and nose;

[0061] An oxygen flow monitoring mechanism 4; one end of which is connected to the oxygen pipeline 2 and the other end of which is connected to the nasal catheter 1, and oxygen is output to the nasal catheter 1 through the oxygen pipeline 2 and the oxygen flow monitoring mechanism 4;

[0062] A breathing environment sound collection mechanism is used to collect environmental sound data of the mouth and / or nose;

[0063] The controller receives the breathing sound data and the environmental sound data, cross-compares the breathing sound data and the environmental sound data, obtains the actual breathing sound data, and calculates the breathing frequency.

[0064] The present invention utilizes a sound collection method, and utilizes respiratory sound data and environmental sound data for comparison and noise elimination, and then utilizes a controller to analyze and compare to obtain accurate respiratory sound data, and further obtain respiratory frequency data.

[0065] Specifically, the oxygen source supplies oxygen to the patient through the oxygen pipeline 2 and the nasal catheter 1. The user exhales air through the nose and / or mouth. The airflow enters the detection body 301 through the respiratory sound detection signal inlet 302. The caliber of the respiratory sound detection signal inlet 302 is small. When the airflow passes through, it will generate sound in the detection body. The sound monitoring microphone 303 recognizes these sound data and transmits them to the controller, and then calculates the respiratory frequency.

[0066] The sound collection method avoids the complexity of conventional pressure detection. This is because, during the oxygen inhalation process of the nasal catheter 1, the oxygen output port is in an open state, and the pressure change amplitude in the oxygen pipeline 2 is extremely small. The pressure sensor is easily affected by external interference during the detection process, resulting in inaccurate judgment.

[0067] The respiratory sound collection mechanism 3 includes a detection body 301, which is provided with a respiratory sound detection signal inlet 302 for collecting the respiratory sounds of the mouth and nose, and also includes a sound monitoring microphone 303 for detecting the respiratory sounds of the mouth and nose and transmitting the respiratory sound data to the controller.

[0068] The device further includes a baffle 304, which is fixed to the detection body 301 and used to block the nasal airflow. The breath sound detection signal inlet 302 is arranged on the detection body 301 on the side of the baffle 304 facing the user. The baffle 304 can effectively block the airflow, so that the airflow is blocked and conducted downward into the breath sound detection signal inlet 302, thereby improving the efficiency of obtaining the breath sound. The height of the baffle 304 is 0.5 to 3 cm. The baffle 304 is in the shape of a cat's ear.

[0069] like Figure 2 As shown, the present invention can also transmit sound to the end in the form of a tube, reducing the number of parts in the mouth and nose, and the power connection line of the sound monitoring microphone 303 can also be integrated and placed at the other end of the tube, that is, the end of the tube away from the patient's use site, effectively reducing the psychological burden of the user.

[0070] The detection body 301 is configured as a tube body, the respiratory sound detection signal inlet 302 is configured in the tube body, the tube body is extended through a pipeline, and the sound monitoring microphone 303 is configured in the pipeline for collecting respiratory sound data transmitted by the pipeline.

[0071] like Figure 3 As shown, the respiratory sound collection mechanism 3 of the present invention can also be integrated on the existing nasal catheter 1 to enhance the use effect. The tube body is provided with a buckle 305, and the buckle 305 is buckled on the nasal catheter 1 to fix the detection body 301 on the nasal catheter 1. It can effectively reduce the number of nasal parts and is convenient to use.

[0072] The tube body is provided with two connecting ears 306. When the detection body 301 is connected to the nasal catheter 1, the two connecting ears 306 are respectively sleeved on the two protruding parts of the nasal catheter 1. It is convenient to fix the detection body 301 to the nasal catheter 1.

[0073] The breathing sound detection signal inlet 302 is provided with two, which are respectively provided at the nostril position and the detection body 301 .

[0074] The present invention Figure 4 As shown,

[0075] The oxygen flow monitoring mechanism 4 is provided with a monitoring body 401, and the monitoring body 401 is provided with an oxygen inlet 402, an oxygen outlet 403, a first air inlet cavity 404 and a second air inlet cavity 405, and a one-way valve 406 is provided at the connection between the first air inlet cavity 404 and the second air inlet cavity 405.

[0076] The monitoring body 401 is provided with a sound monitoring microphone placement cavity 408, and the sound monitoring microphone placement cavity 408 is provided with a connecting air port 409. The connecting air port 409 is connected to the pipe body through a pipeline, and the breathing sound data is transmitted to the sound monitoring microphone placement cavity 408 through the connecting air port.

[0077] The microphone of the respiratory sound collection mechanism 3 is arranged in the first air inlet cavity 404 of the monitoring body 401. The microphone is arranged in the first air inlet cavity 404, and the one-way valve 406 can effectively block the oxygen airflow sound from being transmitted to the first air inlet cavity 404, thus affecting the microphone to collect oxygen output sound data.

[0078] The breathing environment sound collection mechanism includes an environment sound collecting duct 501 and an environment sound collecting microphone 502 for collecting environment sound. The environment sound collecting microphone 502 identifies the environment noise data transmitted by the sound collecting duct 501 and sends it to the controller.

[0079] The environment sound receiving entrance 503 is located outside the detection body 301 and is in the same horizontal plane or close to the horizontal plane as the breathing sound detection signal entrance 302, so as to maintain the consistency of the collected sound and improve the consistency of the sound receiving.

[0080] The upper portion of the detection body 301 is provided with an environmental sound receiving inlet 503 for collecting and amplifying environmental sound, and the sound receiving end of the environmental sound receiving duct 501 is connected to the environmental sound receiving inlet 503 through an environmental sound receiving pipeline 504 .

[0081] The environmental sound collection pipeline 504 is located at the upper part of the detection body 301, and the respiratory sound collection pipeline is located at the lower part of the detection body 301. The sound source entrances connected thereto are in opposite positions, one inside and the other outside, which improves the accuracy of each individual sound collection, prevents interference, and makes the difference in their common frequency parts not too large, thereby improving the accuracy and effectively reducing the difficulty of analysis by the subsequent controller.

[0082] Wherein, the controller includes an amplifier, a subtractor, a comparator, a microcontroller and a data analysis module connected to the microcontroller which are electrically connected in sequence; the respiratory sound data of the mouth and / or nose of the respiratory sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence; the environmental sound data of the mouth and / or nose of the respiratory environmental sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence; the data analysis module compares and analyzes the environmental sound data and the number of respiratory sounds of the mouth and / or nose, transmits the analysis results to the microcontroller, and the microcontroller calculates the respiratory frequency data.

[0083] It also includes a storage module, which is used to store the digital audio signal obtained by the analog-to-digital converter and the analysis result of the data analysis module.

[0084] It also includes a Bluetooth module and a display module. The Bluetooth module is used to transmit the respiratory rate data obtained by the microcontroller to the display module for display.

[0085] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A respiratory rate acquisition device for oxygen uptake monitoring, characterized in that: include Nasal cannula, used to administer oxygen to the patient; An oxygen pipeline, connected to the nasal cannula, for supplying oxygen; A breathing sound collection mechanism, used to collect breathing sounds from the mouth and / or nose; An oxygen flow monitoring mechanism, one end of which is connected to an oxygen pipeline and the other end of which is connected to a nasal cannula, and oxygen is output to the nasal cannula through the oxygen pipeline and the oxygen flow monitoring mechanism; A breathing environment sound collection mechanism is used to collect environmental sound data of the mouth and / or nose; A controller receives the breathing sound data and the environmental sound data, cross-compares the breathing sound data and the environmental sound data, obtains the actual breathing sound data, and calculates the breathing frequency; The respiratory sound collection mechanism comprises a detection body, wherein the body is provided with a respiratory sound detection signal inlet for collecting the respiratory sounds of the nose and / or mouth. The detection body is provided with a baffle for collecting and amplifying the nasal and / or oral breathing airflow, and the breathing sound detection signal inlet is provided on the detection body on the side of the baffle facing the user; The detection body is configured as a tube body, a respiratory sound detection signal inlet is configured in the tube body, the tube body is extended through a pipeline, and a sound monitoring microphone is configured in the pipeline for collecting respiratory sound data transmitted by the pipeline.

2. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 1, characterized in that: It also includes a sound monitoring microphone for detecting breathing sounds from the nose and / or mouth and transmitting the breathing sound data to the controller.

3. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 2, characterized in that: The respiratory environmental sound collection mechanism includes an environmental sound collecting duct and an environmental sound collecting microphone to collect environmental sounds. The environmental sound collecting microphone identifies the environmental noise data transmitted by the sound collecting duct and sends it to the controller.

4. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 3, characterized in that: An environmental sound receiving inlet is arranged on the upper part of the detection body for collecting and amplifying the environmental sound, and the sound receiving end of the environmental sound receiving conduit is connected with the environmental sound receiving inlet through an environmental sound receiving pipeline.

5. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 2, characterized in that: The controller includes an amplifier, a subtractor, a comparator, a microcontroller and a data analysis module connected to the microcontroller, which are electrically connected in sequence. The respiratory sound data of the mouth and / or nose of the respiratory sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence. The environmental sound data of the mouth and / or nose of the respiratory environmental sound collection mechanism are transmitted to the microcontroller through the amplifier, the subtractor and the comparator in sequence. The data analysis module compares and analyzes the environmental sound data and the number of respiratory sounds of the mouth and / or nose, and transmits the analysis results to the microcontroller, and the microcontroller calculates the respiratory frequency data.

6. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 5, characterized in that: It also includes a storage module, which is used to store the digital audio signal obtained by the analog-to-digital converter and the analysis result of the data analysis module.

7. A respiratory rate acquisition device for oxygen uptake monitoring according to claim 5, characterized in that: It also includes a Bluetooth module and a display module, wherein the Bluetooth module is used to transmit the respiratory frequency data obtained by the microcontroller to the display module for display.

8. A method for collecting respiratory rate using the respiratory rate collection device for oxygen uptake monitoring according to any one of claims 1 to 7, characterized in that: include Step 1, collecting oral and / or nasal breathing sound data, and transmitting the oral and / or nasal breathing sound data to a controller; The respiratory sound collection mechanism comprises a detection body, wherein the body is provided with a respiratory sound detection signal inlet for collecting the respiratory sounds of the nose and / or mouth. The detection body is configured as a tube body, the respiratory sound detection signal inlet is configured in the tube body, the tube body is extended by a pipeline, and the sound monitoring microphone is configured in the pipeline to collect the respiratory sound data transmitted by the pipeline; When in use, the airflow is exhaled from the nose and / or mouth, and the airflow enters the detection body through the respiratory sound detection signal inlet. The detection body is provided with a baffle for collecting and amplifying the nasal and / or oral breathing airflow, and the breathing sound detection signal inlet is provided on the detection body on the side of the baffle facing the user; Step 2, collecting ambient sound data of the mouth and / or nose, and transmitting the ambient sound data of the mouth and / or nose to the controller; Step three, after cross comparison, remove the data with the same waveform as the ambient sound data of the mouth and / or nose from the breathing sound data of the mouth and / or nose, and obtain the actual breathing sound data of the mouth and / or nose.

9. The method for collecting respiratory rate using the respiratory rate collection device for oxygen uptake monitoring according to claim 8, characterized in that: The collecting of the respiratory sound data of the mouth and / or nose includes using a respiratory sound catheter and a microphone, wherein the microphone collects the respiratory sound data of the mouth and / or nose through the respiratory sound catheter, and the sound receiving part of the respiratory sound catheter is located at the mouth and / or nose.

10. The method for collecting respiratory rate using the respiratory rate collecting device for oxygen uptake monitoring according to claim 9, characterized in that: Collecting the ambient sound data of the mouth and / or nose includes using an ambient sound receiving duct and a microphone. The microphone collects the ambient sound data of the mouth and / or nose through the ambient sound receiving duct. The sound receiving part of the ambient sound receiving duct is located near the sound receiving part of the respiratory sound duct.

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