Medical warning system

Abstract

The invention provides a medical warning system. The medical warning system comprises a closed cavity, a carbon dioxide detector, an air inlet channel, a micro air compressor and a processing circuit. The closed cavity comprises an air inlet valve and an air release valve. The carbon dioxide detector is arranged on the inner side of the closed cavity. The miniature air compressor comprises a gas input side connected to the gas inlet channel and a gas output side connected to the gas inlet valve of the closed cavity. In the carbon dioxide detection mode, the micro air compressor pressurizes the gas in the gas inlet channel, so that the pressurized gas is conveyed into the closed cavity through the gas output side and the gas inlet valve, and the carbon dioxide detector measures the carbon dioxide concentration of the pressurized gas stored in the closed cavity. And the processing circuit is used for determining whether to send out a warning signal according to the carbon dioxide concentration of the pressurized gas stored in the closed cavity.

Description

Technical Field

[0001] The present application relates to a medical warning system, and more particularly to a medical warning system regarding symptoms of lung disease. Background Art

[0002] Among the current lung diseases, the pathology of chronic obstructive pulmonary disease is the obstruction of the alveoli of many small bronchi. Usually, patients will have wheezing sounds when breathing, and the carbon dioxide concentration in the patient's body will be higher than that of normal people.

[0003] In some cases, there is a method of measuring the carbon dioxide concentration by extracting the patient's arterial blood and converting the carbon dioxide concentration in the blood. This is an invasive detection and requires a needle to be left in the body, which can easily cause discomfort to the patient. Another method is the structure of a large laboratory motor device for detecting the electrochemical absorption of carbon dioxide concentration. This method is difficult to popularize, and patients with chronic pulmonary obstructive pulmonary disease may suffer acute deterioration due to excessive carbon dioxide concentration and insufficient blood oxygen, which may miss the opportunity to warn patients with excessively high carbon dioxide concentrations.

[0004] Therefore, how to provide a medical warning system to solve the above problems is an important issue in the art. Summary of the invention

[0005] The present application provides a medical warning system. The medical warning system includes a carbon dioxide detection device and a processing circuit. The carbon dioxide detection device includes a closed cavity, a carbon dioxide detector, an air intake passage and a micro air compressor. The closed cavity includes an air intake valve and an air release valve. The carbon dioxide detector is arranged on the inner side of the closed cavity. The micro air compressor includes a gas input side connected to the air intake passage and a gas output side connected to the air intake valve of the closed cavity. In the carbon dioxide detection mode, the micro air compressor pressurizes the gas in the air intake passage to transport the pressurized gas into the closed cavity through the gas output side and the air intake valve, so that the carbon dioxide detector measures the carbon dioxide concentration of the pressurized gas stored in the closed cavity. The processing circuit is communicatively coupled to the carbon dioxide detector, and the processing circuit is used to determine whether to issue a warning signal according to the carbon dioxide concentration of the pressurized gas stored in the closed cavity.

[0006] In summary, when the user blows air into the air inlet channel of the carbon dioxide detection device, the micro air compressor will pressurize the gas blown by the user and deliver it to the sealed cavity, thereby reducing the difficulty of the user blowing the gas into the sealed cavity, thereby improving the accuracy of the carbon dioxide concentration detection of the user's breathing movement. Furthermore, the medical warning system of the present application will decide whether to issue a warning signal based on the aforementioned carbon dioxide concentration, thereby monitoring the user's current breathing condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1A Shown is a schematic diagram of the medical alert system described in an embodiment of the present application.

[0008] Figure 1B Shown is a schematic diagram of a carbon dioxide detection device according to an embodiment of the present application.

[0009] Figure 2 Shown is a flow chart of the control method described in an embodiment of the present application.

[0010] Figure 3 Shown is a schematic diagram of the medical alert system described in an embodiment of the present application.

[0011] Figure 4 Shown is a flow chart of the control method described in an embodiment of the present application.

[0012] Figure 5 Shown is a flow chart of the control method described in an embodiment of the present application.

[0013] Component number description

[0014] 100, 300 Medical Alert System

[0015] 110, 310 power supply circuit

[0016] 120, 320 Carbon dioxide detection device

[0017] 121 Sealed cavity

[0018] 122 Micro Air Compressor

[0019] 122a Gas input side

[0020] 122b Gas output side

[0021] 123 Intake valve

[0022] 124 Carbon dioxide detector

[0023] 125 Intake channel

[0024] 126 Air Release Valve

[0025] 127 Blowing nozzle

[0026] 128 switch button

[0027] 129 Inside

[0028] 130, 330 processing circuit

[0029] 140, 340 monitors

[0030] 150, 350 communication circuit

[0031] 160, 360 Network

[0032] 170, 370 servers

[0033] 180, 380 memory devices

[0034] 390 Sound Detector

[0035] 395 Blood Oxygen Detector

[0036] 200, 400, 500 Control Method

[0037] Steps S210, S220, S230, S240

[0038] S250, S260, S270, S280 steps

[0039] S410, S420, S430, S440, S450, S460 steps

[0040] Steps S470, S480, S482, S484, S488, S486

[0041] S510, S520, S530, S540 steps

[0042] S550, S560, S570, S582, S584 steps DETAILED DESCRIPTION

[0043] The following embodiments are described in detail with the accompanying drawings, but the embodiments provided are not intended to limit the scope of the present application, and the description of the structure operation is not intended to limit its execution order. Any structure recombined by the components, including devices with equal functions, are all within the scope of the present application. In addition, the drawings are for illustration purposes only and are not drawn according to the original size. For ease of understanding, the same components or similar components in the following description will be described with the same symbols.

[0044] The terms used throughout the specification and the claims generally include the ordinary meaning of each term in the field, in the disclosed content and in the specific content, unless otherwise specified. In addition, the terms "include", "including", "comprising", "containing", etc. used in this article are open-ended terms, that is, they mean "including but not limited to". In addition, "and / or" used in this article includes any one or more of the related listed items and all combinations thereof.

[0045] See also Figure 1A , Figure 1A Schematic diagram of a medical warning system 100 according to some embodiments of the present application. Figure 1A As shown, the medical warning system 100 includes a power supply circuit 110, a carbon dioxide detection device 120, a processing circuit 130, a display 140, a communication circuit 150, a network 160, a server 170 and a memory device 180. In some embodiments, the power supply circuit 110, the processing circuit 130, and the communication circuit 150 can be arranged on the same circuit substrate. In some embodiments, the memory device 180 is used to store data and the computer can execute instructions. In some embodiments, the memory device 180 can be a volatile memory, a static memory, a hard disk and / or a flash memory, or other memory capable of storing data and instructions. In some embodiments, the processing circuit 130 can be implemented by a processor inside a microcontroller. In some embodiments, the processing circuit 130 is a central processing unit or other equivalent circuit to access the instructions and data stored in the memory device 180.

[0046] In some embodiments, the power supply circuit 110 is used to supply power to the processing circuit 130. In some embodiments, the processing circuit 130 supplies power to the carbon dioxide detection device 120, the display 140, and the communication circuit 150 based on the user's operation instruction, so as to measure the carbon dioxide concentration and send data. In some embodiments, the communication circuit 150 sends the carbon dioxide concentration detected by the carbon dioxide detection device 120 to the server 170 via the network 160. In some embodiments, if the processing circuit 130 determines that the carbon dioxide concentration detected by the carbon dioxide detection device 120 exceeds the threshold, it will instruct the communication circuit 150 to send a warning signal to the server 170 via the network 160. In some embodiments, the server 170 refers to a server of a medical affairs agency or a medical unit.

[0047] In some embodiments, the carbon dioxide detection device 120 is a handheld carbon dioxide detection device. In some embodiments, the carbon dioxide detection device 120 includes a micro air compressor 122 , a carbon dioxide detector 124 , a release valve 126 , and a switch button 128 .

[0048] For better understanding, please also refer to Figure 1B .like Figure 1BAs shown, the carbon dioxide detection device 120 also includes a closed cavity 121, an air inlet channel 125 and an air blowing nozzle 127. In some embodiments, the closed cavity 121 includes an air inlet valve 123 and an air release valve 126. Structurally, the air blowing nozzle 127 and the micro air compressor 122 are respectively arranged at both ends of the air inlet channel 125. The air inlet channel 125 is arranged on the gas input side 122a of the micro air compressor 122, and the air inlet valve 123 of the closed cavity 121 is arranged on the gas output side 122b of the micro air compressor 122. The carbon dioxide detector 124 is arranged on the inner side 129 of the closed cavity 121. In some embodiments, the closed cavity 121 is a container capable of storing gas. In some embodiments, the closed cavity 121 is a vacuum cavity. In some embodiments, the closed cavity 121 is a gas cylinder. In some embodiments, the closed cavity 121 is a closed container made of metal, glass, plastic or other materials.

[0049] In some embodiments, the carbon dioxide detector 124 is fixed to the bottom of the sealed cavity 121 with screws, and the circuit of the carbon dioxide detector 124 is electrically connected to the processing circuit 130 through a perforated structure (not shown) at the bottom of the sealed cavity 121 for wired communication, wherein the circuit and the perforated structure can be fixed with rubber and waterproof glue to prevent gas leakage.

[0050] In other embodiments, the carbon dioxide detector 124 includes a wireless access circuit (e.g., a Bluetooth communication circuit or a WiFi communication circuit) to wirelessly communicate with the processing circuit 130. In this case, the internal battery of the carbon dioxide detector 124 is wirelessly charged with an external wireless charger, and the internal battery and the external wireless charger comply with the QI wireless charging specification.

[0051] See also Figure 1A , Figure 1B as well as Figure 2 . Figure 2 2 is a flow chart of a control method 200 according to some embodiments of the present application. As shown in FIG. 2 , the control method 200 includes steps S210 to S280. In some embodiments, steps S210 to S280 may be performed by the processing circuit 130. In some embodiments, the processing circuit 130 is electrically coupled to the memory device 180 to access instructions and data from the memory device 180.

[0052] In some embodiments, the processing circuit 130 executes step S210 to receive a start signal from the switch button 128. In some embodiments, the switch button 128 is electrically coupled to the processing circuit 130. When the user presses the switch button 128, the switch button 128 transmits a start signal to the processing circuit 130 to enter the carbon dioxide measurement mode. In some embodiments, the display screen of the display 140 prompts the user to enter the carbon dioxide measurement mode and prompts the user to prepare for blowing.

[0053] In some embodiments, in the carbon dioxide measurement mode, the processing circuit 130 executes step S220 to control the micro air compressor 122 to continue to operate within a preset time, so as to pressurize and deliver the gas to the closed cavity 121. In some embodiments, the display screen of the display 140 prompts the user to start and continue to blow air into the blowing nozzle 127 within a preset time. At this time, the micro air compressor 122 will continue to pressurize the gas in the air inlet channel 125 and deliver the pressurized gas to the closed cavity 121. In some embodiments, the micro air compressor 122 includes a pressure detector to measure the pressure of the gas output side 122b, and the preset time is the operating time required for the pressure of the gas output side 122b of the micro air compressor 122 to reach a constant. In other embodiments, the micro air compressor 122 includes a flow sensor to measure the amount of gas delivered to the gas output side 122b, and the preset time is the operating time required for the gas flow rate output by the micro air compressor 122 to reach a default value. In some embodiments, the aforementioned preset time is greater than or equal to 10 seconds. In some embodiments, the aforementioned preset time is 15 seconds. In some other embodiments, the preset time is 20 seconds. In some other embodiments, the preset time can be set according to the capacity of the sealed cavity 121 and the specifications of the micro air compressor 122. Therefore, the present application is not limited thereto.

[0054] It is worth noting that the micro air compressor 122 can effectively assist the user in delivering the exhaled gas into the sealed cavity 121, thereby reducing the difficulty for the user to blow gas into the sealed cavity 121, and thus enabling the elderly, children or patients who are less able to blow easily to use the carbon dioxide detection device 120 to detect the carbon dioxide concentration of the exhaled gas.

[0055] In some embodiments, when the operation time of the micro air compressor 122 reaches a default time in the carbon dioxide measurement mode, the processing circuit 130 executes step S230 to instruct the carbon dioxide detector 124 to sense the carbon dioxide concentration inside the sealed cavity 121. At this time, the pressure inside the sealed cavity 121 is maintained at a constant state, so that the carbon dioxide detector 124 senses the carbon dioxide concentration of the pressurized gas stored inside the sealed cavity 121, and transmits the carbon dioxide concentration data to the processing circuit 130.

[0056] In some embodiments, after the carbon dioxide measurement mode ends, the medical warning system 100 switches to the reset mode, and the processing circuit 130 executes step S240 to control the air release valve 126 to open in the reset mode, thereby discharging the pressurized gas inside the sealed cavity 121, and then performing a reset operation. In some embodiments, the air release valve 126 is an electronic air release valve and is controlled by the processing circuit 130. In some embodiments, the processing circuit 130 instructs the air release valve 126 to close in the carbon dioxide measurement mode.

[0057] In some embodiments, the processing circuit 130 performs step S250 to determine whether the carbon dioxide concentration is greater than a first threshold value. In some embodiments, patients with lung diseases (e.g., chronic obstructive pulmonary disease) may experience dyspnea, resulting in a higher carbon dioxide concentration in the patient's exhaled gas (e.g., 6% or more). In some embodiments, the first threshold value can be set at a value greater than or equal to 6%. In some embodiments, the first threshold value is set at 6%. In other embodiments, the first threshold value is set at 8%. In yet other embodiments, the first threshold value can be set according to the symptoms of the lung disease. Therefore, the present application is not limited thereto.

[0058] In some embodiments, if the processing circuit 130 determines that the carbon dioxide concentration is greater than the first threshold, it means that the carbon dioxide concentration in the user's lungs is too high and the oxygen concentration is insufficient, causing dyspnea or respiratory failure. At this time, the processing circuit 130 executes step S270 to instruct the communication circuit 150 to send a warning signal to the server 170 of the medical institution or medical unit. In some examples, the processing circuit 130 instructs the display 140 to display a warning reminder to remind the user that the carbon dioxide concentration exceeds the standard. In some embodiments, the processing circuit 130 will simultaneously send a warning signal to the mobile device of the user and / or the user's emergency contact, thereby prompting the user and / or the user's emergency contact that the user is in a state of dyspnea or respiratory failure.

[0059] In some embodiments, the processing circuit 130 also executes step S280 to transmit the measurement data (e.g., carbon dioxide concentration and measurement time) and user data (e.g., age and ID number) to the server 170 of the medical affairs agency or medical unit, thereby uploading the data to the hospital emergency application programming interface and / or health insurance system cloud.

[0060] In some embodiments, if the processing circuit 130 determines that the carbon dioxide concentration is less than the first threshold, the processing circuit 130 executes step S260 to record the measurement data (eg, carbon dioxide concentration and measurement time).

[0061] See also Figure 3 , Figure 3 FIG. 3 is a schematic diagram of a medical warning system 300 according to some embodiments of the present application. Figure 3 As shown, the medical alert system 300 includes a power supply circuit 310, a carbon dioxide detection device 320, a processing circuit 330, a display 340, a communication circuit 350, a network 360, a server 370, a memory device 380, a sound detector 390, and a blood oxygen detector 395. In some embodiments, the power supply circuit 310, the carbon dioxide detection device 320, the processing circuit 330, the display 340, the communication circuit 350, the network 360, the server 370, and the memory device 380 in the medical alert system 300 of FIG. 3 correspond to the power supply circuit 110, the carbon dioxide detection device 120, the processing circuit 130, the display 140, the communication circuit 150, the network 160, the server 170, and the memory device 180 in the medical alert system 100 of FIG. 1, and are not described in detail here.

[0062] In some embodiments, the sound detector 390 is a microphone sound collecting cavity patch. In some instances, the sound detector 390 is used to be attached to the chest or trachea of ​​the user to sense and receive the breathing sound of the user. In some embodiments, the sound detector 390 is connected to the processing circuit 330 in communication to transmit the sensing data to the processing circuit 330. In some instances, the sound detector 390 is connected to the processing circuit 330 in wireless communication to wirelessly transmit the sensing data to the processing circuit 330.

[0063] In some embodiments, the blood oxygen detector 395 is wired / communicatively connected to the processing circuit 330 to transmit the sensing data to the processing circuit 330. In some embodiments, the blood oxygen detector 395 can be a finger blood oxygen detector.

[0064] See also Figure 3 as well as Figure 4 . Figure 4 FIG. 4 is a flow chart of a control method 400 according to some embodiments of the present application. Figure 4 As shown, the control method 400 includes steps S410 to S488. In some embodiments, steps S410 to S488 can be performed by the processing circuit 330. In some embodiments, Figure 4 Steps S410 to S460 of the control method 400 correspond to steps S210 to S260 of the control method 200 of FIG. 2 , and are not described again herein.

[0065] In some embodiments, if the processing circuit 330 determines in step S450 that the carbon dioxide concentration is greater than the first threshold, the processing circuit 330 executes step S470 to instruct the blood oxygen detector 395 to measure the blood oxygen concentration. In some embodiments, the user places a finger into the blood oxygen detector 395, so that the blood oxygen detector 395 detects the user's blood oxygen concentration and transmits the sensing data to the processing circuit 330.

[0066] In some embodiments, the processing circuit 330 performs step S480 to determine whether the blood oxygen concentration is lower than a second threshold value. In some embodiments, patients with lung diseases (e.g., patients with chronic obstructive pulmonary disease) have symptoms including many small bronchoalveolar obstructions, carbon dioxide concentrations will exceed the standard ratio, and blood oxygen concentrations will decrease. In some embodiments, the second threshold value can be set to a value in the range of 92% to 97%. In some embodiments, the second threshold value is set at 95%. In other embodiments, the second threshold value can be set according to the symptoms of the lung disease. Therefore, the present application is not limited thereto.

[0067] In some embodiments, if the processing circuit 330 determines that the blood oxygen concentration is higher than the second threshold, it means that the oxygen content in the blood is relatively normal. In this case, the processing circuit 330 executes step S460. Figure 4 Step S460 corresponds to Figure 2 Step S260 is not described again here.

[0068] In some embodiments, if the processing circuit 330 determines that the blood oxygen concentration is lower than the second threshold value (for example, 95%), it means that the user's carbon dioxide concentration is high and the oxygen content in the blood is insufficient, which may affect the health of the brain and heart. At this time, the processing circuit 330 executes step S480 to determine whether the blood oxygen concentration is lower than the third threshold value. In some embodiments, the third threshold value is a value less than the second threshold value. In some embodiments, the third threshold value can be set to a value in the range of 88% to 92%. In some embodiments, the third threshold value is set at 90%. In other embodiments, the third threshold value can be set according to the symptoms of lung disease. Therefore, the present application is not limited to this.

[0069] In some embodiments, if the processing circuit 330 determines that the blood oxygen concentration is lower than the second threshold and higher than the third threshold (for example, the measured blood oxygen concentration is between 90% and 95%), the processing circuit 330 executes step S484 to instruct the communication circuit 350 to send a warning signal to the server 370 of the medical institution or medical unit. In some embodiments, the processing circuit 330 instructs the display 340 to display a warning reminder to remind the user that the carbon dioxide concentration exceeds the standard. In some embodiments, the processing circuit 330 synchronously sends a warning signal to the mobile device of the user and / or the user's emergency contact, thereby prompting the user and / or the user's emergency contact that the user is in a state of difficulty breathing.

[0070] If the processing circuit 330 determines that the blood oxygen concentration is lower than the third threshold value (for example, the measured blood oxygen concentration at this time is lower than 90%), it means that the user is in respiratory failure. The processing circuit 330 executes step S486 to instruct the communication circuit 350 to send an emergency notification to the server 370 of the medical agency or medical unit, so that the medical rescue unit can urgently send the user to the medical unit for rescue, thereby monitoring the user's respiratory condition (for example, respiratory failure) in real time, thereby preventing respiratory failure from endangering the patient's life.

[0071] In some embodiments, the processing circuit 330 also executes step S488 to transmit the measurement data (e.g., carbon dioxide concentration, blood oxygen concentration, and measurement time) and user data (e.g., age and ID number) to the server 370 of the medical affairs agency or medical unit, and then upload the data to the hospital emergency application programming interface and / or health insurance system cloud.

[0072] See also Figure 3 as well as Figure 5 . Figure 5 FIG. 5 is a flow chart of a control method 500 according to some embodiments of the present application. Figure 5 As shown, the control method 500 includes steps S510 to S584. In some embodiments, steps S510 to S584 can be performed by the processing circuit 330. In some embodiments, Figure 5 Steps S510 to S560 of the control method 500 correspond to Figure 2 Steps S210 to S260 of the control method 200 are not described in detail here.

[0073] In some embodiments, if the processing circuit 330 determines in step S550 that the carbon dioxide concentration is greater than the first threshold, the processing circuit 330 executes step S570 to instruct the sound detector 390 to detect the breathing sound of the patient (or user). In some embodiments, the user attaches the sound detector 390 to the part to be detected, such as the chest cavity or the trachea, so as to sense and receive the breathing sound of the user's breathing movement, and transmit the sensed breathing sound to the processing circuit 330.

[0074] In some embodiments, the processing circuit 330 analyzes whether the user suffers from lung disease based on the breathing sounds. In some embodiments, the memory device 380 stores a neural network model suitable for analyzing sounds. In some embodiments, the neural network model may be a deep neural network or other neural network model suitable for analyzing abnormal breathing sounds, but the present application is not limited thereto. In some embodiments, the processing circuit 330 analyzes whether the sound detected by the sound detector 390 includes an asthma sound waveform or an asthma audio frequency based on the aforementioned neural network model, thereby determining whether the user suffers from lung disease and generating an analysis result (for example, whether the user suffers from lung disease or the proportion of the user suffering from lung disease). In some embodiments, if the processing circuit 330 determines that the user does not suffer from lung disease based on the analysis result that the user's breathing has no abnormal sounds (for example, asthma sounds), this means that the user may be in a state after exercise, causing the carbon dioxide concentration to slightly increase but the breathing sounds to be normal. At this point, the processing circuit 330 executes step S460. At Figure 4 Step S460 in is similar to Figure 2 Step S460 in will not be repeated here.

[0075] In some embodiments, if the processing circuit 330 determines that the user suffers from lung disease, the processing circuit 330 executes step S582 to instruct the communication circuit 350 to send an alarm signal. And executes step S584 to instruct the communication circuit 350 to transmit the measurement data (carbon dioxide concentration and / or asthma sound) to the server 370 of the medical unit. In some embodiments, steps S584 and S584 of FIG. 5 are similar to / equal to steps S270 and S280 of FIG. 2, respectively, and are not described in detail here.

[0076] In summary, the carbon dioxide detection device 120 of the present application can effectively assist the user to deliver the exhaled gas to the inside of the sealed cavity 121, thereby reducing the difficulty of the user blowing the gas into the sealed cavity 121, and thus the elderly, children or patients who are weak in blowing can also easily use the carbon dioxide detection device 120 to detect the carbon dioxide concentration of the exhaled gas. Furthermore, the medical warning system 100 of the present application warns the user when the carbon dioxide concentration is too high, thereby warning the user in real time of life-threatening situations caused by dyspnea or respiratory failure.

[0077] Although the present application has been implemented as above, it is not intended to limit the present application. Anyone with ordinary knowledge in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be determined by the scope of the appended claims.

Claims

1. A medical alert system, characterized in that: include: A carbon dioxide detection device, comprising: A closed cavity including an air inlet valve and an air release valve; a carbon dioxide detector, disposed inside the sealed cavity; an air intake passage; and A micro air compressor comprises a gas input side connected to the air inlet passage and a gas output side connected to the air inlet valve of the closed cavity, and wherein: In a carbon dioxide detection mode, the micro air compressor pressurizes the gas in the air inlet passage to deliver the pressurized gas into the sealed chamber through the gas output side and the air inlet valve, so that the carbon dioxide detector measures a carbon dioxide concentration of the pressurized gas stored in the sealed chamber; and A processing circuit is communicatively coupled to the carbon dioxide detector, and wherein the processing circuit is used to determine whether to issue a warning signal according to the carbon dioxide concentration of the pressurized gas stored in the sealed chamber.

2. The medical alert system according to claim 1, characterized in that: The processing circuit is further configured to: Determining whether the carbon dioxide concentration exceeds a first threshold; If the carbon dioxide concentration exceeds the first threshold, the processing circuit instructs a communication circuit to send the warning signal; and If the carbon dioxide concentration does not exceed the first threshold, the processing circuit indicates to store the measurement data obtained in the carbon dioxide detection mode.

3. The medical alert system according to claim 2, characterized in that: The first threshold is set at a value greater than or equal to 6%.

4. The medical alert system according to claim 1, characterized in that: The processing circuit is communicatively coupled to the micro air compressor, and the processing circuit is further configured to: In the carbon dioxide detection mode, the micro air compressor is instructed to continuously pressurize the gas in the air intake passage for a preset time, and continuously deliver the pressurized gas to the closed cavity via the gas output side and the air intake valve, so as to instruct the carbon dioxide detector to measure the carbon dioxide concentration of the pressurized gas stored in the closed cavity after the preset time ends.

5. The medical alert system according to claim 4, characterized in that: The default time is greater than or equal to 10 seconds.

6. The medical alert system according to claim 1, characterized in that: The processing circuit is communicatively coupled to the purge valve, and the processing circuit is configured to: The air release valve is closed in the carbon dioxide detection mode, and is opened in a reset mode to allow the pressurized gas to be discharged from the closed cavity through the air release valve.

7. The medical alert system according to claim 1, characterized in that: Also includes: a blood oxygen detector, communicatively connected to the processing circuit, wherein the processing circuit is further used to determine whether to send the warning signal according to the carbon dioxide concentration and a blood oxygen concentration, and wherein the processing circuit is used to: Determining whether the carbon dioxide concentration exceeds a first threshold; If the carbon dioxide concentration exceeds the first threshold, the processing circuit instructs the blood oxygen detector to measure a blood oxygen concentration; If the blood oxygen concentration is lower than a second threshold, the processing circuit sends the warning signal; as well as If the blood oxygen concentration is lower than a third threshold, the processing circuit sends an emergency notification, wherein the third threshold is smaller than the second threshold.

8. The medical alert system according to claim 7, characterized in that: The second threshold is set to a value in the range of 92% to 97%, and the third threshold is set to a value in the range of 88% to 92%.

9. The medical alert system according to claim 1, characterized in that: Also includes: a sound detector, communicatively coupled to the processing circuit, the sound detector being used to measure a breathing sound of a breathing movement at a detected part of a user, And the processing circuit analyzes whether the user suffers from a lung disease according to the breathing sound to generate an analysis result, and determines whether to send the warning signal according to the analysis result and the carbon dioxide concentration.

10. The medical alert system according to claim 8, characterized in that: The sound detector is a microphone sound collecting cavity patch.

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