Transient sensing device for detecting carbon dioxide concentration through percutaneous patch

Abstract

The invention discloses a transient sensing device for detecting carbon dioxide concentration through a percutaneous patch, and belongs to the technical field of percutaneous blood gas detection.The transient sensing device comprises a collecting main body, an annular adhering part and a gas collecting assembly, the collecting main body is provided with a cylindrical shell, a butt joint ring and a display screen, the annular adhering part is connected with the butt joint ring through a magnetic suction rod, and an annular medical silica gel pad is arranged; an inflation part is arranged in a butt joint hole in the butt joint ring and communicates with the annular elastic air bag to form a flexible annular sealing structure, the air tightness is improved, the gas production assembly comprises a gas production cover, a gas pump, a gas sensor and the like, and a high-precision laser spectrum sensor is adopted for detecting the concentration of carbon dioxide. A buffer chamber, a pressure controller, a flow controller and the like are arranged to guarantee stability and accuracy of a gas sample, the device is further provided with a gas distribution core, an electric heating net, a flow guide cover and the like to optimize gas distribution and temperature control, accurate, stable and continuous monitoring of the carbon dioxide concentration is achieved, meanwhile, the comfort and safety of a user are guaranteed, and the device is suitable for clinical diagnosis and treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of transcutaneous blood gas detection, and more specifically to an instantaneous sensing device for transcutaneous patch detection of carbon dioxide concentration. Background Art

[0002] In the field of medical monitoring, real-time monitoring of physiological parameters is crucial for the prevention, diagnosis and treatment of diseases. Among them, the monitoring of carbon dioxide concentration plays an important role in respiratory function assessment, metabolic status monitoring and intensive care. Traditional carbon dioxide monitoring methods usually rely on large medical equipment, such as blood gas analyzers or respiratory monitors. Although these devices are highly accurate, they are bulky, complex to operate, and require professional operation and maintenance, which limits their application in home monitoring, telemedicine or mobile medicine.

[0003] In recent years, with the rapid development of sensor technology and microelectronics technology, transdermal patch sensors have attracted much attention due to their non-invasive, portable and continuous monitoring characteristics. This type of sensor can monitor physiological parameters in subcutaneous tissue or blood in real time by attaching it to the surface of human skin, providing an important basis for clinical diagnosis and treatment. However, existing transdermal carbon dioxide sensors still face many challenges in terms of air tightness, sampling accuracy, comfort and long-term stability.

[0004] First of all, air tightness is one of the key factors in the performance of transdermal patch sensors. Due to the tiny movements of the human skin surface and the interference of the external environment, it is difficult for traditional pasting methods to ensure a long-term stable sealing effect, which is prone to leakage, thus affecting the accuracy of the monitoring results. In addition, oils and sweat on the skin surface will also affect the pasting effect, further exacerbating the leakage problem.

[0005] Secondly, sampling accuracy is also an important issue that transcutaneous patch sensors need to solve. Since the gas concentration on the skin surface is different from that in the subcutaneous tissue or blood, how to accurately collect gas samples that reflect the true physiological state becomes a major problem. At the same time, environmental factors such as temperature and humidity on the skin surface will also affect the sampling results, and corresponding measures need to be taken to correct them.

[0006] Furthermore, comfort is an important consideration for users to accept transdermal patch sensors. Traditional pasting methods often cause discomfort to users, such as skin pressure caused by sticking too tightly, skin allergic reactions caused by sticking too long, etc. Therefore, it is particularly important to develop a transdermal patch sensor that can maintain good airtightness and ensure user comfort.

[0007] Finally, long-term stability is the key to whether transdermal patch sensors can be widely used in clinical practice. Due to the complex and changeable microenvironment on the surface of human skin, the sensor needs to be able to maintain stable performance under various conditions, including the influence of temperature, humidity, skin oil and other factors. At the same time, the service life and reusability of the sensor are also important factors to consider. Summary of the invention

[0008] 1. Technical problems to be solved

[0009] In view of the problems existing in the prior art, the purpose of the present invention is to provide an instantaneous sensing device for detecting carbon dioxide concentration through a skin patch. It realizes real-time monitoring of air pressure changes in the pipeline by opening a detection hole on the natural gas pipeline and installing a matching mounting plate and detection cylinder. During the installation process, the detection cylinder only needs to be screwed into the mounting plate to complete the installation. No complicated debugging process is required, which greatly reduces the difficulty and cost of installation.

[0010] 2. Technical solution

[0011] To solve the above problems, the present invention adopts the following technical solutions.

[0012] An instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch, comprising:

[0013] The collection body comprises a cylindrical shell, a docking ring and a display screen, wherein the docking ring is embedded and installed on the outer surface of the cylindrical shell, the display screen is fixedly connected to the lower end of the cylindrical shell, and the diameter of the docking ring is larger than that of the cylindrical shell;

[0014] The annular adhesive component matches the docking ring and is detachably connected to the outer enclosure of the docking ring;

[0015] The gas collection component is fixedly installed in the collection body.

[0016] As a further improvement of the present invention, the gas collection component includes a gas collection hood, an air pump, a gas sensor and an air pipe connecting the various components. The gas collection hood, air pump and gas sensor are connected and communicated through the air pipe. The annular adhesive is adhered to the human body's epidermis and combined with the docking ring and the gas collection hood to form a collection air chamber. After the annular adhesive is adhered to the human body's epidermis to form a collection air chamber, the air is extracted by the air pump and transported to the gas sensor to realize the detection of carbon dioxide concentration.

[0017] As a further improvement of the present invention, a buffer chamber is provided between the air pump and the gas sensor, a pressure controller is provided between the air pump and the buffer chamber, and a flow controller is provided between the buffer chamber and the gas sensor, so as to adjust the pressure, flow and stability of the gas to ensure that the gas sensor can receive stable and accurate gas samples.

[0018] As a further improvement of the present invention, a gas separation core is installed at the inner end of the gas collection hood, and a flow guide cover is installed between the edge of the gas separation core and the gas outlet of the gas collection hood, and the flow guide cover is a trumpet-shaped structure. The gas separation core can increase the contact area between the gas and the medium, thereby promoting uniform distribution and mixing of the gas, and the flow guide cover is used to guide the flow direction of the gas so that it flows along a predetermined path, thereby avoiding gas accumulation in the cavity or forming vortices, thereby improving the representativeness and accuracy of the collected gas samples.

[0019] As a further improvement of the present invention, the gas separation core includes a pair of porous material layers, an electric heating net is embedded and installed between the pair of porous material layers, and a temperature sensor is installed on the guide cover. The porous material layer can increase the contact area between the gas and the medium, thereby promoting the uniform distribution and mixing of the gas. Therefore, embedding the electric heating net therein can just heat the gas sufficiently and carefully, keeping the temperature in the gas collection chamber within an appropriate range. The temperature sensor is used to monitor the temperature to ensure the accuracy of the detection.

[0020] As a further improvement of the present invention, the annular adhesive attachment includes a pressure cover main ring, the lower end of the outer side of the pressure cover main ring is fixedly connected with an annular medical silicone pad, and the lower end of the inner side of the pressure cover main ring is fixedly connected with a plurality of magnetic rods distributed in an annular array. The pressure cover main ring covers the docking ring for alignment and compression and positioning. The annular medical silicone pad not only maintains the stability of the device, but also can adapt to the slight movement of the skin to a certain extent, thereby improving the wearing comfort. At the same time, it can be slightly deformed to better fit the skin contours of different patients, reduce leakage points, and improve gas collection efficiency. In addition, it has the characteristics of good biocompatibility, which can reduce allergic reactions and skin irritation. The magnetic rod is used to prevent relative movement after establishing a connection with the docking ring, thereby improving the stability of the device during detection and is not prone to leakage.

[0021] As a further improvement of the present invention, the docking ring is provided with a plurality of docking holes matching the magnetic rods, and an inflatable member that is attracted to each other is slidably installed in the docking hole. An annular elastic airbag is fixedly connected to the lower end of the docking ring, and the annular elastic airbag is connected to the docking hole. When the magnetic rod is inserted into the docking hole, it can establish a magnetic connection with the inflatable member and force the inflatable member to move, thereby squeezing part of the gas in the docking hole into the annular elastic airbag to cause it to expand. The inflated annular elastic airbag can form a flexible annular sealing structure, further improving the air tightness of the collection air chamber, and ensuring that the detection process will not be disturbed by the outside world. Even if the medical-grade adhesive is unevenly coated or a leak occurs at the annular medical silicone pad due to patient movement, the annular elastic airbag can always maintain a good contact seal in the annular coverage area due to the fluidity of the gas therein, and the inflated annular elastic airbag can also isolate the medical-grade adhesive, ensuring the purity of the collection area, and in turn squeeze the docking ring and the annular adhesive to achieve a good combination, thereby improving the overall stability of the device.

[0022] As a further improvement of the present invention, the inflatable part includes a piston body, which is fixedly connected to a magnetic block near one end of the magnetic rod, and an elastic part is fixedly connected between the piston body and the inner bottom wall of the annular elastic airbag. The piston body can still maintain good air tightness when moving, ensuring that the gas can smoothly enter the annular elastic airbag to cause it to expand. The elastic part adopts physical contact to conform to the expansion of the annular elastic airbag, and can play a certain elastic supporting effect on the shape of the inflated annular elastic airbag, avoiding large deformation and causing poor sealing.

[0023] As a further improvement of the present invention, an adjustable air pressure valve is arranged between the gas collection hood and the air pump, and the end of the annular medical silicone pad away from the main ring of the pressure cover is coated with a medical-grade adhesive. The adjustable air pressure valve can allow the gas collection pressure to be adjusted according to the patient's skin characteristics and detection requirements to avoid excessive pressure or air leakage on the skin. The medical-grade adhesive has stronger adhesion and longer adhesion time, while remaining skin-friendly, reducing allergies and discomfort, and can be quickly disassembled and replaced together with the annular adhesive.

[0024] As a further improvement of the present invention, the gas sensor signal is connected to a control module, which includes a central processing unit, an actuator control unit, a data storage unit and a power supply unit. The gas sensor, pressure controller, flow controller and temperature sensor are all connected to the central processing unit signal, and the electric heating network, air pump and adjustable air pressure valve are all electrically connected to the actuator control unit. The control module is used to control the operating temperature of the electric heating network, the exhaust rate of the buffer chamber and the sampling frequency of the gas sensor, and efficiently processes the data collected by each sensor to realize an automated detection process.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] (1) The magnetic connection between the magnetic rod and the docking hole and the inflation of the annular elastic airbag form an additional sealing structure, which effectively solves the leakage problem caused by the traditional pasting method. Even if the medical-grade adhesive has uneven coating or the patient moves to cause leakage points, the annular elastic airbag can always maintain a good contact seal in the annular coverage area due to the fluidity of the gas in it, ensuring the airtightness of the collection chamber.

[0028] (2) The design of gas distribution core and guide cover increases the contact area between gas and medium, promotes the uniform distribution and mixing of gas, avoids gas accumulation or vortex formation in the cavity, and thus improves the representativeness and accuracy of the collected gas samples. At the same time, the electric heating network maintains a suitable temperature, reducing the impact of temperature on the sampling results.

[0029] (3) The annular medical silicone pad not only maintains the stability of the device, but also can adapt to the slight movement of the skin to a certain extent, improving the wearing comfort. At the same time, the medical-grade adhesive has stronger adhesion and longer sticking time, while remaining skin-friendly and reducing allergies and discomfort.

[0030] (4) Through sophisticated design and control, including the integration of pressure controller, flow controller and temperature sensor, the sensor can maintain stable performance under various conditions. In addition, the use of rechargeable batteries and wireless communication modules improves the portability and user-friendliness of the device, making long-term monitoring possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the collecting body and the annular adhesive attachment when they are separated;

[0033] Figure 3It is a schematic diagram of the structure inside the collection body in the present invention;

[0034] Figure 4 It is a cross-sectional view of the gas collecting hood part of the present invention;

[0035] Figure 5 For the present invention Figure 4 The structural diagram at A in the middle;

[0036] Figure 6 It is a schematic structural diagram of the inflatable member of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1. Collection body; 101. Cylindrical shell; 102. Docking ring; 103. Display screen; 2. Annular adhesive attachment; 201. Main gland ring; 202. Magnetic rod; 203. Annular medical silicone pad; 3. Gas collection hood; 4. Air pump; 5. Inflatable part; 501. Piston body; 502. Magnetic block; 503. Elastic part; 6. Buffer chamber; 7. Gas sensor; 8. Control module; 9. Adjustable air pressure valve; 10. Pressure controller; 11. Flow controller; 12. Annular elastic airbag; 13. Temperature sensor; 14. Gas separation core; 15. Electric heating net; 16. Flow guide cover; 17. Medical grade adhesive; 18. Docking hole. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] Example:

[0041] See also Figure 1-6 , a transdermal patch instantaneous sensing device for detecting carbon dioxide concentration, comprising:

[0042] The collection body 1 includes a cylindrical shell 101, a docking ring 102 and a display screen 103. The docking ring 102 is embedded and installed on the outer surface of the cylindrical shell 101. The display screen 103 is fixedly connected to the lower end of the cylindrical shell 101, and the diameter of the docking ring 102 is larger than that of the cylindrical shell 101.

[0043] The annular adhesive member 2 matches the docking ring 102 and is detachably connected to the outer periphery of the docking ring 102;

[0044] The annular adhesive attachment 2 includes a main gland ring 201, an annular medical silicone pad 203 is fixedly connected to the lower outer end of the main gland ring 201, and a plurality of magnetic rods 202 distributed in an annular array are fixedly connected to the lower inner end of the main gland ring 201. The main gland ring 201 covers the docking ring 102 for alignment and compression and positioning. The annular medical silicone pad 203 can not only maintain the stability of the device, but also adapt to the slight movement of the skin to a certain extent, thereby improving the wearing comfort. At the same time, it can be slightly deformed to better fit the skin contours of different patients, reduce leakage points, and improve gas collection efficiency. In addition, it has the characteristics of good biocompatibility, which can reduce allergic reactions and skin irritation. The magnetic rod 202 is used to prevent relative movement after establishing a connection with the docking ring 102, thereby improving the stability of the device during detection and not prone to leakage.

[0045] The docking ring 102 is provided with a plurality of docking holes 18 matching the magnetic rods 202, and an inflatable member 5 is slidably installed in the docking hole 18. An annular elastic airbag 12 is fixedly connected to the lower end of the docking ring 102, and the annular elastic airbag 12 is connected to the docking hole 18. When the magnetic rod 202 is inserted into the docking hole 18, it can establish a magnetic connection with the inflatable member 5 and force the inflatable member 5 to move, thereby squeezing part of the gas in the docking hole 18 into the annular elastic airbag 12 to cause it to expand. The expanded annular elastic airbag 12 can form a flexible annular sealing structure. The air tightness of the collection chamber is further improved to ensure that the detection process will not be disturbed by the outside world. Even if the medical-grade adhesive 17 is unevenly coated or a leak occurs at the annular medical silicone pad 203 due to patient movement, the annular elastic airbag 12 can always maintain a good contact seal in the annular coverage area due to the fluidity of the gas therein. The inflated annular elastic airbag 12 can also isolate the medical-grade adhesive 17 to ensure the purity of the collection area, and in turn squeeze the docking ring 102 and the annular adhesive 2 to achieve a good combination, thereby improving the overall stability of the device.

[0046] The inflatable part 5 includes a piston body 501, and one end of the piston body 501 is fixedly connected to the magnetic block 502 near the magnetic rod 202. An elastic part 503 is fixedly connected between the piston body 501 and the inner bottom wall of the annular elastic airbag 12. The piston body 501 can still maintain good air tightness when moving, ensuring that the gas can smoothly enter the annular elastic airbag 12 to cause it to expand. The elastic part 503 adopts physical contact to conform to the expansion of the annular elastic airbag 12, and can play a certain elastic supporting effect on the shape of the inflated annular elastic airbag 12, avoiding large deformation and causing poor sealing.

[0047] The gas collection component is fixedly installed in the collection body 1.

[0048] The gas collection component includes a gas collection hood 3, an air pump 4, a gas sensor 7 and an air pipe connecting the various components. The gas collection hood 3, the air pump 4 and the gas sensor 7 are connected and communicated through the air pipe. The annular adhesive 2 is attached to the human skin and combined with the docking ring 102 and the gas collection hood 3 to form a collection air chamber. After the collection air chamber is formed by the annular adhesive 2 being attached to the human skin, the air is extracted by the air pump 4 and transported to the gas sensor 7 to realize the detection of carbon dioxide concentration.

[0049] The gas sensor uses a high-precision laser spectral sensor, including a laser, a detector chamber and a detector. It calculates the concentration of carbon dioxide by accurately measuring the degree of laser absorption by carbon dioxide. It can also integrate other sensors besides carbon dioxide sensors, such as oxygen partial pressure sensors, humidity sensors, etc., to provide more comprehensive physiological parameter monitoring and provide richer data support for clinical diagnosis and treatment.

[0050] A buffer chamber 6 is also arranged between the air pump 4 and the gas sensor 7, a pressure controller 10 is arranged between the air pump 4 and the buffer chamber 6, and a flow controller 11 is arranged between the buffer chamber 6 and the gas sensor 7, which can adjust the pressure, flow and stability of the gas to ensure that the gas sensor 7 can receive stable and accurate gas samples.

[0051] A gas separation core 14 is installed at the inner end of the gas collection hood 3, and a flow guide cover 16 is installed between the edge of the gas separation core 14 and the gas outlet of the gas collection hood 3, and the flow guide cover 16 is a trumpet-shaped structure. The gas separation core 14 can increase the contact area between the gas and the medium, thereby promoting uniform distribution and mixing of the gas, and the flow guide cover 16 is used to guide the flow direction of the gas so that it flows along a predetermined path, thereby avoiding gas accumulation in the cavity or forming vortices, thereby improving the representativeness and accuracy of the collected gas samples.

[0052] The gas separation core 14 includes a pair of porous material layers, an electric heating net 15 is embedded between the pair of porous material layers, and a temperature sensor 13 is installed on the guide cover 16. The porous material layer can increase the contact area between the gas and the medium, thereby promoting the uniform distribution and mixing of the gas. Therefore, the electric heating net 15 embedded therein can fully and carefully heat the gas and keep the temperature in the gas collection chamber within an appropriate range. The temperature sensor 13 is used to monitor the temperature to ensure the accuracy of the detection.

[0053] An adjustable air pressure valve 9 is arranged between the gas collection hood 3 and the air pump 4. The end of the annular medical silicone pad 203 away from the pressure cover main ring 201 is coated with a medical-grade adhesive 17. The adjustable air pressure valve 9 can allow the gas collection pressure to be adjusted according to the patient's skin characteristics and detection requirements to avoid excessive pressure or air leakage on the skin. The medical-grade adhesive 17 has stronger adhesion and longer adhesion time, while remaining skin-friendly, reducing allergies and discomfort, and can be quickly disassembled and replaced together with the annular adhesive 2 later.

[0054] The gas sensor 7 is signal-connected to a control module 8, which includes a central processing unit, an actuator control unit, a data storage unit and a power supply unit. The gas sensor 7, a pressure controller 10, a flow controller 11 and a temperature sensor 13 are all signal-connected to the central processing unit. The electric heating network 15, the air pump 4 and the adjustable air pressure valve 9 are all electrically connected to the actuator control unit. The control module 8 is used to control the operating temperature of the electric heating network 15, the air extraction rate of the buffer chamber 6 and the sampling frequency of the gas sensor 7, and to efficiently process the data collected by each sensor to realize an automated detection process.

[0055] The power module can use a rechargeable battery and be powered by micro USB or wireless charging, reducing the reliance on external power cords, improving portability and user-friendliness, and can also integrate the function of a wireless communication module to achieve longer-distance and more stable data transmission. At the same time, the development of supporting remote monitoring software allows medical staff to view patients' test data in real time, and provide remote guidance and adjust treatment plans.

[0056] Working principle:

[0057] Installation and initialization: The user first tightly combines the annular adhesive 2 with the docking ring 102 on the target skin area through the medical-grade adhesive 17 and the magnetic rod 202. When the magnetic rod 202 is inserted into the docking hole 18, it pushes the inflatable member 5 to move, so that the annular elastic airbag 12 is inflated to form an additional sealing structure to ensure the airtightness of the collection air chamber.

[0058] Gas collection and detection: After starting the device, the air pump 4 starts to work, and the appropriate gas collection pressure is adjusted through the adjustable air pressure valve 9 to inhale the gas on the skin surface from the gas collection hood 3. The gas is evenly distributed through the gas distribution core 14, and the electric heating network 15 maintains a suitable temperature, and is guided into the trachea through the guide cover 16.

[0059] Gas processing and sensing: The gas enters the buffer chamber 6, is adjusted to a stable state by the pressure controller 10 and the flow controller 11, and then is sent to the gas sensor 7. The gas sensor 7 detects the carbon dioxide concentration in real time and transmits the data to the control module 8.

[0060] Data processing and display: The central processing unit of the control module 8 receives the sensor data, processes it, and displays the carbon dioxide concentration information in real time through the display screen 103. At the same time, the data storage unit records historical data for subsequent analysis.

[0061] End and Replacement: After the test is completed, the user can close the device as needed and gently peel off the ring-shaped adhesive 2. Due to the use of medical-grade adhesive 17 and easy-to-clean materials, the ring-shaped adhesive 2 can be quickly removed and replaced for next use.

[0062] Through sophisticated design and control, the entire system achieves accurate, stable and continuous monitoring of carbon dioxide concentration while ensuring user comfort and safety.

[0063] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transdermal patch instantaneous sensing device for detecting carbon dioxide concentration, characterized in that: include: A collection body (1), the collection body (1) comprising a cylindrical shell (101), a docking ring (102) and a display screen (103), the docking ring (102) being embedded and installed on the outer surface of the cylindrical shell (101), the display screen (103) being fixedly connected to the lower end of the cylindrical shell (101), and the diameter of the docking ring (102) being larger than that of the cylindrical shell (101); An annular adhesive member (2) matches the docking ring (102) and is detachably connected to the outer periphery of the docking ring (102); The gas collection component is fixedly installed in the gas collection body (1).

2. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 1, characterized in that: The gas collection component comprises a gas collection hood (3), an air pump (4), a gas sensor (7) and an air pipe connecting the various components. The gas collection hood (3), the air pump (4) and the gas sensor (7) are connected and communicated through the air pipe. The annular adhesive (2) is attached to the human body epidermis and combined with the docking ring (102) and the gas collection hood (3) to form a gas collection chamber.

3. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 2, characterized in that: A buffer chamber (6) is also provided between the air pump (4) and the gas sensor (7), a pressure controller (10) is provided between the air pump (4) and the buffer chamber (6), and a flow controller (11) is provided between the buffer chamber (6) and the gas sensor (7).

4. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 3, characterized in that: An air distribution core (14) is installed at the inner end of the air collection hood (3), and a flow guide cover (16) is installed between the edge of the air distribution core (14) and the air outlet of the air collection hood (3), and the flow guide cover (16) is a trumpet-shaped structure.

5. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 4, characterized in that: The gas separation core (14) comprises a pair of porous material layers, an electric heating net (15) is embedded and installed between the pair of porous material layers, and a temperature sensor (13) is installed on the guide cover (16).

6. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 5, characterized in that: The annular adhesive attachment (2) comprises a main gland ring (201), the lower outer end of the main gland ring (201) being fixedly connected to an annular medical silicone pad (203), and the lower inner end of the main gland ring (201) being fixedly connected to a plurality of magnetic suction rods (202) distributed in an annular array.

7. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 6, characterized in that: The docking ring (102) is provided with a plurality of docking holes (18) matching the magnetic attraction rod (202), and an inflatable member (5) that is attracted to each other is slidably installed in the docking hole (18). The lower end of the docking ring (102) is fixedly connected with an annular elastic airbag (12), and the annular elastic airbag (12) is communicated with the docking hole (18).

8. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 7, characterized in that: The inflatable member (5) comprises a piston body (501), one end of the piston body (501) close to the magnetic rod (202) is fixedly connected to the magnetic block (502), and an elastic member (503) is fixedly connected between the piston body (501) and the inner bottom wall of the annular elastic airbag (12).

9. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 8, characterized in that: An adjustable air pressure valve (9) is provided between the gas collection hood (3) and the air pump (4), and a medical-grade adhesive (17) is coated on one end of the annular medical silicone pad (203) away from the gland main ring (201).

10. The instantaneous sensing device for detecting carbon dioxide concentration through a transdermal patch according to claim 9, characterized in that: The gas sensor (7) is signal-connected to a control module (8), and the control module (8) comprises a central processing unit, an actuator control unit, a data storage unit and a power supply unit. The gas sensor (7), the pressure controller (10), the flow controller (11) and the temperature sensor (13) are all signal-connected to the central processing unit, and the electric heating network (15), the air pump (4) and the adjustable air pressure valve (9) are all electrically connected to the actuator control unit.

Images