A dynamic monitoring system and method for chronic airway diseases based on wireless sensing

Abstract

This invention belongs to the field of diagnostic and therapeutic technology, specifically a dynamic monitoring system and method for chronic airway diseases based on wireless sensing. It includes a wearable sensing unit, an edge signal processing unit, a wireless communication transmission unit, an intelligent analysis unit, and a patient-medical terminal management unit. The wearable sensing unit includes a mask connected to the edge signal processing unit via the wireless communication transmission unit. The patient adjusts the distance between the expiratory and inspiratory tubes and their mouth and nose by rotating an adjustment ring, allowing the patient to hold the end of the expiratory tube in their mouth and the inspiratory tube to extend into the nostril through a sealing pad. At this time, the patient inhales through the inspiratory tube and exhales through the expiratory tube. Gas detection sensors are distributed inside the inspiratory and expiratory tubes to accurately detect the flow rate of the patient's inhalation and exhalation, improving the sensitivity of detecting shallow and rapid breathing symptoms, thereby improving the accuracy of disease monitoring and enhancing the system's monitoring effect.

Description

Technical Field

[0001] This invention belongs to the field of diagnostic and therapeutic technology, specifically a dynamic monitoring system and method for chronic airway diseases based on wireless sensing. Background Technology

[0002] Chronic airway diseases such as chronic obstructive pulmonary disease (COPD) and bronchial asthma are characterized by long disease courses, fluctuating airway inflammation, and insidious acute exacerbations. Therefore, long-term, 24 / 7 dynamic monitoring of airway inflammation levels and respiratory physiological parameters at home is necessary to guide tiered medication and predict the risk of acute exacerbations. Exhaled condensate, rich in airway epithelial exudate, inflammatory factors, and oxidative stress markers, is a core biological sample for non-invasive assessment of airway inflammation. In-situ collection of condensate using an integrated oral-nasal sensor mask combined with wireless transmission technology can overcome the site limitations of traditional large-scale laboratory condensate collection instruments, enabling real-time, simultaneous monitoring of biochemical indicators and respiratory parameters at home. This has become a mainstream research direction for home management of chronic airway diseases.

[0003] The existing mask features an integrated design connecting the mouth and nose cavities, with exhaled air from the oral and nasal cavities sharing the same condensation and collection chamber. During daily wear, when patients swallow, drool, speak, or unconsciously expel oral secretions, saliva droplets and saliva droplets directly splash and fall onto the condensation reservoir and the surface of the biochemical detection electrodes. Saliva contains oral digestive enzymes, oral flora, and food metabolic impurities. When mixed with the pure exhaled air condensate from the lower respiratory tract, it significantly alters key inflammatory indicators such as pH and nitrite concentration in the condensate. On the one hand, this causes falsely high or low electrode detection results, failing to accurately reflect the actual degree of airway inflammation. On the other hand, protein impurities in saliva adhere to the electrochemical electrode probe, causing electrode polarization passivation, probe scaling and failure, zero-point drift within a short period, equipment calibration failure, and decreased detection repeatability, affecting monitoring accuracy. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a dynamic monitoring system and method for chronic airway diseases based on wireless sensing.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a dynamic monitoring system and method for chronic airway diseases based on wireless sensing, including a wearable sensing unit, an edge signal processing unit, a wireless communication transmission unit, an intelligent analysis unit, and a medical staff / patient terminal management unit; the wearable sensing unit includes:

[0006] The mask is connected to an edge signal processing unit via a wireless communication transmission unit. An exhalation tube and an inhalation tube are slidably connected to the side wall of the mask via springs. The two ends of the inhalation and exhalation tubes are located on the inner and outer sides of the mask, respectively. The inhalation tube is positioned above the exhalation tube, with one end of the exhalation tube facing the mouth and the other end of the inhalation tube facing the nose. A one-way valve and a flow sensor are evenly distributed within the inhalation and exhalation tubes. A sealing gasket, flared in shape and with an arc-shaped cross-section, is provided at the edge of the mask.

[0007] The adjustment ring is rotatably connected to the outer surface of the mask. The adjustment ring is respectively fitted onto the exhalation tube and the inhalation tube and is threadedly connected. The end of the inhalation tube near the nose is provided with a soft sealing pad, and the center of the sealing pad has a hole that communicates with the inside of the inhalation tube. The end of the exhalation tube away from the mouth is provided with a ring of liquid detection sensors, and a gas detection sensor is installed in the center through a bracket. A condenser tube is provided on the outside of the exhalation tube, and the condenser tube stores ice water.

[0008] Preferably, the mask has a rotating ring rotatably connected to one end near the adjustment ring. An outer magnet is provided inside the rotating ring. A rotating plate is slidably connected to the inner wall of the exhalation tube. An inner magnet is provided on the rotating plate near the inner wall of the exhalation tube. The outer and inner magnets attract each other, and the rotating plate contacts the inner wall of the exhalation tube via a ball bearing. A motor is provided on the outer surface of the mask, and the motor is connected to the rotating ring. Rotating shafts are provided on both sides of the rotating plate, and the rotating shafts are connected to the rotating plate via torsion springs. A cleaning pad and a cleaning cotton are provided on one side of the outer surface of the rotating shaft. The cleaning pad is located on one side of the cleaning cotton and is made of rubber. The part of the cleaning pad that contacts the inner wall of the exhalation tube is arc-shaped.

[0009] Preferably, the condenser tube is an elastic capsule type, with the inlet located on the outer surface and the outlet located on the inner surface. The outlet of the condenser tube is provided with a nozzle that passes through the inner wall of the exhalation tube. One end of the nozzle has a rotating hemisphere hinged to the inner wall by a torsion spring. The surface of the rotating hemisphere is provided with a rubber layer and contacts the cleaning pad.

[0010] Preferably, the cleaning plate has a support plate inside, one end of which is connected to the rotating plate, the cleaning plate has a recess near the rotating hemisphere, and the other end of the support plate is located in the recess and is toothed.

[0011] Preferably, the inner wall of the exhalation tube is provided with a drainage groove, and the liquid detection sensors are distributed in the drainage groove, which is spirally arranged on the inner wall of the exhalation tube.

[0012] Preferably, a drainage block is slidably connected inside the drainage groove, the drainage block contacts the drainage groove through ball bearings, and the top of the drainage block is slidably connected to one side of the rotating plate.

[0013] Preferably, the cross-section of the part of the exhalation tube near the opening is hook-shaped and faces away from the mouth. A saliva tube is provided in the inner wall of the exhalation tube, and a liquid detector is distributed in the saliva tube. The saliva tube is located in the drainage groove, and the drainage block is in contact with the saliva tube.

[0014] Preferably, the exhalation tube has a built-in stabilizer, one end of which passes through the axis of the rotating plate and is rotatably connected to it.

[0015] Preferably, the inhalation tube is rotatably connected to the part near the sealing pad, and when the sealing pad rotates upward, the sealing pad contacts the nose, and when it rotates downward, it is close to one end of the exhalation tube. The top of the sealing pad is a boss shape.

[0016] A method for dynamic monitoring of chronic airway diseases based on wireless sensing, the monitoring method comprising the following steps:

[0017] Step 1: The patient wears a mask and secures it tightly, with the silicone edge fitting snugly against the face. The airway is sealed and leak-free. The inspiratory tube controls air intake through valves, and the expiratory tube controls exhalation through valves, allowing for natural breathing.

[0018] Step 2: Outside air enters the mask cavity through the inhalation tube, and the airflow sensor inside the inhalation tube records the inhalation flow rate and volume; when the patient exhales, all the exhaled airflow passes through the exhalation tube, and the airflow and CO2 data are collected simultaneously.

[0019] Step 3: The intelligent analysis unit calculates the lung function curve in real time, compares it with the thresholds for asthma and COPD classification, and controls the vibration warning of mobile phones and electrical appliances when it detects symptoms such as shallow and rapid breathing, loud wheezing, and abnormally high CO2.

[0020] Step 4: The intelligent analysis unit synchronously uploads the effective feature data to the mobile phone and the medical staff terminal management unit via the wireless communication transmission unit;

[0021] Step 5: The medical staff terminal management unit will store the monitoring data and generate a monitoring report.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The present invention discloses a dynamic monitoring system and method for chronic airway diseases based on wireless sensing. The patient adjusts the distance between the expiratory and inspiratory tubes and the mouth and nose by rotating an adjustment ring, allowing the patient to hold the end of the expiratory tube in their mouth and the inspiratory tube to extend into the nostril through a sealing pad. At this time, the patient inhales through the inspiratory tube and exhales through the expiratory tube. Gas detection sensors are distributed inside the inspiratory and expiratory tubes to accurately detect the flow rate of the patient's inhalation and exhalation, improving the sensitivity of detecting symptoms of shallow and rapid breathing, thereby improving the accuracy of disease monitoring and enhancing the system's monitoring effect.

[0024] 2. The present invention provides a dynamic monitoring system and method for chronic airway diseases based on wireless sensing. By coordinating the inspiratory and expiratory tubes, the system separates the detection of the patient's inhalation and exhalation, avoiding the mixing or interference of air during both inhalation and exhalation. This improves the contrast between inhalation and expiratory monitoring and enhances the accuracy of disease monitoring. Furthermore, all exhaled breath flows into the expiratory tube, where gas and liquid sensors detect the breath, preventing it from diffusing inside the mask and reducing the concentration of detectable substances, thus improving the accuracy of breath detection. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a schematic diagram of the invention viewed from below.

[0028] Figure 3 This is a schematic diagram of the internal structure of the mask;

[0029] Figure 4 yes Figure 3 A schematic diagram of the reciprocating adjustment or cleaning state of the middle expiratory duct;

[0030] Figure 5 This is a schematic diagram of the inside of the expiratory duct;

[0031] Figure 6 This is a cross-sectional diagram of the expiratory duct;

[0032] Figure 7 yes Figure 6 A schematic diagram illustrating the movement of the rotating plate during cleaning;

[0033] Figure 8 This is a schematic diagram of the transmission of the rotating ring;

[0034] Figure 9 This is a schematic diagram of the movement of the drainage block;

[0035] In the diagram: Mask 1, Exhalation tube 11, Inhalation tube 12, Valve 13, Sealing gasket 14, Adjustment ring 15, Sealing block 16, Condenser tube 17, Rotating ring 18, Outer magnet 19, Rotating plate 2, Inner magnet 21, Motor 22, Rotating shaft 23, Cleaning plate 24, Cleaning cotton 25, Nozzle 26, Rotating hemisphere 27, Support plate 28, Drainage groove 29, Drainage block 3, Saliva tube 31, Stabilizer 32. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1:

[0038] To effectively solve the above problems, see the attached diagram in the instruction manual. Figure 1-9 As shown, a dynamic monitoring system for chronic airway diseases based on wireless sensing includes a wearable sensing unit, an edge signal processing unit, a wireless communication transmission unit, an intelligent analysis unit, and a medical staff / patient terminal management unit; the wearable sensing unit includes:

[0039] The mask 1 is connected to the edge signal processing unit via a wireless communication transmission unit. An exhalation tube 11 and an inhalation tube 12 are slidably connected to the side wall of the mask 1 via springs. The two ends of the inhalation tube 12 and the exhalation tube 11 are located on the inner and outer sides of the mask 1, respectively. The inhalation tube 12 is located above the exhalation tube 11, with one end of the exhalation tube 11 facing the mouth and one end of the inhalation tube 12 facing the nose. A one-way valve 13 and a flow sensor are evenly distributed within the inhalation tube 12 and the exhalation tube 11. A sealing gasket 14 is provided at the edge of the mask 1. The sealing gasket 14 is funnel-shaped with an arc-shaped cross-section.

[0040] An adjustment ring 15 is rotatably connected to the outer surface of the mask 1. The adjustment ring 15 is respectively fitted onto the exhalation tube 11 and the inhalation tube 12 and is threadedly connected. The end of the inhalation tube 12 near the nose is provided with a soft sealing pad 16, and the center of the sealing pad 16 has a hole that communicates with the inside of the inhalation tube 12. The end of the exhalation tube 11 away from the mouth is provided with a ring of liquid detection sensors, and a gas detection sensor is installed in the center through a bracket. A condenser tube 17 is provided on the outside of the exhalation tube 11, and ice water is stored in the condenser tube 17.

[0041] The valve 13 inside the inspiratory tube 12 bends and opens only inwards towards the mask 1, and closes outwards. The valve 13 inside the expiratory tube 11 does the opposite. The patient inhales into the outside through the inspiratory tube 12, and after the air enters the body, it is exhaled through the mouth into the expiratory tube 11. The valve 13 inside the expiratory tube 11 opens, and the airflow in the expiratory tube 11 flows out naturally from the mask 1 and the interior of the expiratory tube 11. Both the inspiratory tube 12 and the expiratory tube 11 slide linearly with the mask 1. The adjusting ring 15 is threadedly connected to the expiratory tube 11 and the expiratory tube 11. When the adjusting ring 15 rotates clockwise, it drives the inspiratory tube 12 and the expiratory tube 11 to move linearly inwards towards the mask 1. When it rotates counterclockwise, it drives the inspiratory tube 12 and the expiratory tube 11 to move outwards.

[0042] Specific workflow: After the patient puts on mask 1, the mask 1 is secured behind the head using the straps provided with it. Mask 1 contacts the patient's facial skin through the sealing gasket 14. By squeezing the sealing gasket 14, it elastically deforms and conforms to the facial skin, achieving a seal. When the trumpet-shaped sealing gasket 14 is squeezed onto the face, the outer edge of the sealing gasket 14 first contacts the patient's face. The outer edge of the sealing gasket 14 is gradually pushed outward along the facial skin, pushing away oil and other substances on the patient's facial skin. As the sealing gasket 14 elastically deforms, the inner side of the sealing gasket 14 contacts the clean facial skin, improving the contact effect between the inner side of the sealing gasket 14 and the skin, thereby improving the seal. At the same time, the outer edge of the sealing gasket 14 has a larger area and higher softness than the inner side, allowing the outer edge of the sealing gasket 14 to conform to the creases on the side of the patient's nose. In addition, the oil pushed away from the face covers the gap between the sealing gasket 14 and the skin, playing a sealing role, thereby improving the sealing effect of mask 1 and thus improving the accuracy of respiratory monitoring.

[0043] After wearing the mask 1, the patient adjusts the distance between the exhalation tube 11 and the inhalation tube 12 and the mouth and nose by rotating the adjustment ring 15, so that the patient can hold the end of the exhalation tube 11 in their mouth and the inhalation tube 12 can be inserted into the nostril through the sealing pad 16. At this time, the patient inhales through the inhalation tube 12 and exhales through the exhalation tube 11. Gas detection sensors are distributed inside the inhalation tube 12 and the exhalation tube 11 to accurately detect the flow rate of the patient's inhalation and exhalation, improve the sensitivity of detecting the patient's shallow and rapid breathing symptoms, thereby improving the accuracy of disease monitoring and improving the monitoring effect of the system.

[0044] In addition, if the patient feels uncomfortable wearing the mask 1, they can adjust the tightness of the mask 1 themselves after their mouth and nose come into contact with the inhalation tube 12 and the exhalation tube 11. Since the patient's mouth and nose are connected to the inhalation tube 12 and the exhalation tube 11, the detection accuracy can be maintained even if the mask 1 is loose. The patient can also fix the exhalation tube 11 by biting it, thereby fixing the mask 1. This allows the wearing method of the mask 1 to be freely adjusted and controlled according to the patient's condition and needs, improving the flexibility of the mask 1 monitoring.

[0045] Furthermore, the cooperation of the inhalation tube 12 and the exhalation tube 11 allows for separate detection of the patient's inhalation and exhalation. This avoids air from contacting the inside of the mask 1 during inhalation and mouth air from contacting the inside of the mask 1 during exhalation, which could lead to mixing or interference with the detection. This improves the contrast between inhalation and exhalation monitoring and enhances the accuracy of disease monitoring. In addition, all the patient's exhaled breath flows into the exhalation tube 11, where the gas and liquid detection sensors detect the breath. This prevents the breath from diffusing inside the mask 1, which could reduce the concentration of the detected substances in the breath, thereby improving the accuracy of breath air detection.

[0046] As breath flows through the expiratory tube 11, ice water or ice chips injected into the condenser tube 17 by the patient beforehand lower the temperature of the inner wall of the expiratory tube 11. When the patient exhales warm breath, it comes into contact with the cold inner wall, causing water droplets to condense on the inner wall of the expiratory tube 11. The liquid detection sensor detects the condensed water droplets, working in conjunction with the gas detection sensor to perform a complete detection of the patient's breath, improving monitoring accuracy. Furthermore, since the liquid detection sensors are distributed in a ring on the inner wall of the expiratory tube 11, when the patient is standing normally, the liquid detection sensor at the bottom of the expiratory tube 11 promptly detects the water droplets that have gathered at the bottom. When the patient tilts their head, the water droplets gather on the side of the expiratory tube 11, and the liquid detection sensor on the side detects the gathered water droplets, achieving dynamic detection and improving detection flexibility, thereby enhancing the monitoring flexibility of the system. After the exhaled breath passes through the gas detection sensor, it flows out of the expiratory tube 11 through the valve 13, and the condensed water droplets also flow towards the valve 13 and are discharged from the expiratory tube 11, achieving a cyclic detection function.

[0047] Example 2:

[0048] Based on Embodiment 1, the mask 1 is rotatably connected to a rotating ring 18 near the adjusting ring 15. An outer magnet 19 is provided on the inner side of the rotating ring 18. A rotating plate 2 is slidably connected to the inner wall of the exhalation tube 11. An inner magnet 21 is provided on the part of the rotating plate 2 near the inner wall of the exhalation tube 11. The outer magnet 19 and the inner magnet 21 attract each other, and the rotating plate 2 contacts the inner wall of the exhalation tube 11 through a ball bearing. A motor 22 is provided on the outer surface of the mask 1, and the motor 22 is connected to the rotating ring 18. A rotating shaft 23 is provided on both sides of the rotating plate 2. The rotating shaft 23 is connected to the rotating plate 2 through a torsion spring. A cleaning plate 24 and a cleaning cotton 25 are provided on one side of the outer surface of the rotating shaft 23. The cleaning plate 24 is located on one side of the cleaning cotton 25. The cleaning plate 24 is made of rubber, and the part of the cleaning plate 24 that contacts the inner wall of the exhalation tube 11 is arc-shaped.

[0049] The condenser tube 17 is an elastic bladder type. The inlet of the condenser tube 17 is located on the outer surface, and the outlet is located on the inner surface. The outlet of the condenser tube 17 is provided with a nozzle 26. The nozzle 26 passes through the inner wall of the exhalation tube. One end of the inner wall of the nozzle 26 is hinged to a rotating hemisphere 27 by a torsion spring. The surface of the rotating hemisphere 27 is provided with a rubber layer and contacts the cleaning pad 24.

[0050] The cleaning plate 24 is provided with a support plate 28. One end of the support plate 28 is connected to the rotating plate 2. The cleaning plate 24 is provided with a recess near the rotating hemisphere 27. The other end of the support plate 28 is located in the recess and is toothed.

[0051] The inner wall of the exhalation tube 11 is provided with a drainage groove 29, and liquid detection sensors are distributed in the drainage groove 29. The drainage groove 29 is spirally arranged on the inner wall of the exhalation tube 11.

[0052] The motor 22 can be covered with a protective cover to protect the transmission connection between the motor 22 and the rotating ring 18 from being exposed and affected. The motor 22 is made of a lightweight type to avoid the motor 22 being too heavy and affecting the wearing comfort of the mask 1. The motor 22 and the rotating ring 18 are connected by a conventional transmission belt. The motor 22 drives the rotating ring 18 to rotate forward or backward through the transmission belt, and the rotation of the rotating ring 18 does not affect the rotation or stationary position of the adjusting ring 15. The outer magnet 19 and the inner magnet 21 are conventional magnets that attract each other. The exhalation tube 11 is made of conventional plastic material, which does not affect the attraction between the outer magnet 19 and the inner magnet 21, and the magnetic attraction does not affect the normal detection and operation of the mask 1.

[0053] Specific workflow: When the patient's breath enters the expiratory tube 11, the breath contacts the rotating plate 2. The motor 22 drives the rotating ring 18 to rotate. The rotating ring 18 drives the inner magnet 21 to rotate through the outer magnet 19. The inner magnet 21 drives the rotating plate 2 to rotate. The rotating plate 2 causes the breath to rotate. The water vapor or part with a high water vapor content in the breath is approached by the centrifugal force and flows along the spiral trajectory on the annular inner wall of the expiratory tube 11. This part of the breath has a high water content and is easy to condense into water droplets when it comes into contact with the cold inner wall. However, the part of the breath near the rotating plate 2 has a low water content and can contact the gas detection sensor for a long time, forming a dry and wet separation effect. The detection items do not affect each other, reducing data drift values ​​and improving monitoring accuracy.

[0054] Furthermore, the patient's breath may contain a small amount of saliva, which can cause sticky moisture, resulting in water droplets that flow and gather more slowly, thus affecting the detection efficiency.

[0055] Therefore, when detection is required, the rotating plate 2 is controlled to rotate forward. The rotating plate 2 drives the cleaning plate 24 and the cleaning cotton 25 to rotate via the rotating shaft 23. The cleaning plate 24 contacts the inner wall of the exhalation tube 11 in front of the moving cleaning cotton 25. The rubber cleaning plate 24 generates frictional resistance with the inner wall, causing it to swing. The cleaning plate 24 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the cleaning cotton 25 to swing away from the inner wall. The rotation of the cleaning plate 24 scrapes away the condensed water droplets, speeding up the water droplet aggregation speed, which helps the liquid detection sensor to contact and detect in a timely manner, improving the real-time performance of the detection data, thereby improving the accuracy of monitoring.

[0056] During long-term testing, the interior needs to be cleaned regularly to maintain the sensitivity of the test. When cleaning is required, the rotating plate 2 is reversed. The rotating plate 2 drives the cleaning plate 24 to reverse through the rotating shaft 23. The cleaning plate 24 swings away from the rotating plate 2 due to frictional resistance, forming a slight contact with the inner wall of the exhalation tube 11. The cleaning plate 24 drives the cleaning cotton 25 to rotate through the rotating shaft 23. The cleaning cotton 25 rotates, contacts and squeezes the inner wall of the exhalation tube 11, and wipes the inner wall during continuous cyclic rotation to improve cleanliness and thus improve the accuracy of the test.

[0057] Furthermore, by setting the part of the cleaning plate 24 that contacts the inner wall to be arc-shaped, the cleaning plate 24 can smoothly transition through the arc-shaped part when switching between rotation and reversal, thus avoiding the cleaning plate 24 getting stuck and improving the smoothness of movement.

[0058] Furthermore, since the condenser tube 17 is an elastic bladder type, a heat-conducting plate can be installed on the inner wall of the condenser tube 17 to accelerate the cooling effect of the condenser tube 17 on the exhalation tube 11; when the rotating plate 2 reverses to clean, the cleaning plate 24 contacts the protruding rotating hemisphere 27 of the nozzle 26, and the rotating hemisphere 27 is driven to rotate by the rubber friction resistance. When the rotating hemisphere 27 is stationary, the spherical part is blocked at the port of the nozzle 26 by the rubber layer. When the rotating hemisphere 27 rotates, the spherical part opens the port of the nozzle 26, and the nozzle 26 sprays ice water onto the exhalation tube 11, the rotating plate 2, the cleaning plate 24 and the cleaning cotton 25. After the cleaning plate 24 passes, the rotating hemisphere 27 reverses to reset by the torsion spring and re-blocks the nozzle 26; the ice water sprayed from the nozzle 26 cleans the internal parts of the exhalation tube 11, and at the same time the rotating plate 2 drives the parts to rotate, forming a scrubbing effect, thereby improving the cleanliness of the exhalation tube 11;

[0059] In addition, this cleaning process can be used during wear and use, allowing for uninterrupted use and inhalation detection, thus improving monitoring smoothness and ease of use of the system; the rotation of the rotating plate 2 can also cause the ice water to splash and swirl, creating a rinsing effect and improving cleaning ability; the ice water entering the exhalation tube 11 can also directly reduce the temperature of the inner wall and internal parts of the exhalation tube 11 through contact, improving the efficiency of breath condensation and thus improving monitoring efficiency; the cleaning wastewater flows downwards towards the valve 13 due to gravity and flows out of the exhalation tube 11 through the valve 13.

[0060] By setting up the support plate 28, when the cleaning plate 24 drives the support plate 28 to rotate forward, the toothed part of the support plate 28 provides its bending point, so that the support plate 28 can have good flexibility. While not affecting the swing of the cleaning plate 24, it provides support for scraping condensed water droplets, thereby improving the water droplet collection effect and thus improving the monitoring efficiency. When the support plate 28 rotates in reverse, the toothed part of the support plate 28 forms a rack drive. After contacting the rotating hemisphere 27, it drives the rotating hemisphere 27 to rotate through tooth meshing, improving the rotation efficiency of the rotating hemisphere 27 and helping the nozzle 26 to spray ice water better.

[0061] By setting up a drainage channel 29, and with liquid detection sensors distributed within the drainage channel 29, water droplets on the inner wall of the expiratory tube 11 are scraped and collected within the drainage channel 29. The liquid detection sensors detect the water droplets collected within the drainage channel 29. Since the drainage channel 29 is spirally designed, the spiral structure extends the flow path of the accumulated fluid, slows down the fluid flow rate, and prevents the fluid from flowing too quickly past the liquid detection sensor. The rotating plate 2 also appropriately slows down the flow rate of the breath, increasing the amount of condensation while avoiding insufficient monitoring. Furthermore, regardless of the patient's position (standing, lying on their side, tilting their head, or lying prone), the accumulated fluid can be directionally collected towards the lower position along the spiral channel surface by gravity, avoiding fluid retention caused by gravity dispersion. Then, the dispersed condensate is collected in the channel, ensuring that the liquid detection sensor is always within the effective sample coverage range, avoiding sensor misses caused by uneven distribution of accumulated fluid on the inner wall of a traditional planar surface.

[0062] Example 3:

[0063] Based on Embodiment 2, a flow-guiding block 3 is slidably connected inside the flow-guiding groove 29. The flow-guiding block 3 contacts the flow-guiding groove 29 through ball bearings, and the top of the flow-guiding block 3 is slidably connected to one side of the rotating plate 2.

[0064] The cross-section of the part of the exhalation tube 11 near the opening is hook-shaped and faces away from the mouth. A saliva tube 31 is provided in the inner wall of the exhalation tube 11. Liquid detectors are distributed in the saliva tube 31. The saliva tube 31 is located in the drainage groove 29 and the drainage block 3 contacts the saliva tube 31.

[0065] Specific workflow: One edge of the rotating plate 2 wraps around the bottom of the rotating shaft 23, and the top of the drainage block 3 slides on one edge of the rotating plate 2. When the rotating plate 2 rotates clockwise, the drainage block 3 is restricted and guided by the drainage groove 29. The rotating plate 2 drives the drainage block 3 to move along the drainage groove 29 towards the valve 13, and the top of the drainage block 3 slides close to the valve 13 on one side of the rotating plate 2. The drainage block 3 pushes the dispersed and gathered liquid in the drainage groove 29; it gathers and compresses the scattered liquid that is stuck by saliva and mucus forward. The liquid continues to gather in front of the drainage block 3 and flows directionally along the drainage groove 29 to the liquid detection sensor deployment points, avoiding the loss of liquid readings due to the dispersion of liquid, and improving the real-time performance and data stability of liquid detection; the drainage block 3 is embedded in the spiral drainage groove 29 by ball bearings. The ball bearings greatly reduce the frictional resistance between the drainage block 3 and the side wall of the groove, preventing slippage and jamming;

[0066] When the rotating plate 2 reverses, the drainage block 3 moves in the opposite direction to reset. The bidirectional movement continuously cleans the bottom of the drainage channel 29, scrapes away the protein impurities and dried saliva debris deposited in the channel, prevents long-term accumulation of dirt from causing pollution, and ensures that the drainage channel 29 is unobstructed for a long time, reducing the frequency of manual disassembly and cleaning.

[0067] The distal end of the exhalation tube 11 is bent inward with a hook-shaped opening, and its inner wall forms a protrusion facing the mouth. The protrusions are evenly arranged to prevent large saliva and sputum droplets splashed from the mouth from directly entering the main condensation sampling area. Large saliva particles are intercepted first and then flow into the saliva tube 31. The saliva tube 31 is arranged inside the drainage groove 29 and is arranged synchronously along the spiral direction. It is specifically used to distinguish between saliva waste liquid and condensate from the airway. As the drainage block 3 moves toward the valve 13, it closely adheres to the outer wall of the saliva tube 31, simultaneously wiping the tube wall and guiding the saliva. The saliva is directed to the liquid detection sensor built into the saliva tube 31 to improve detection accuracy.

[0068] During cleaning, the rotating plate 2 rotates forward, causing the cleaning water to flow in the drainage groove 29, cleaning the inside of the groove and improving the cleaning effect; the rotating plate 2 rotates in reverse, causing the drainage block 3 to return to its original position. During the resetting process, the drainage block 3 continues to maintain contact with the outer wall of the saliva tube 31 and the bottom of the drainage groove 29. On the one hand, it guides the cleaning water backward, and on the other hand, it scrapes back and forth along the outer wall of the saliva tube 31 to remove the dried saliva and mucus residues attached to the outer wall and the opening of the saliva tube 31, preventing the saliva from flowing back into the condensed sampling liquid due to blockage of the saliva tube 31. The cleaning water that is guided backward flows into the saliva tube 31 to wash the saliva tube 31 and improve the cleanliness of the saliva tube 31.

[0069] Example 4:

[0070] Based on Embodiment 3, the exhalation tube 11 has a built-in stabilizer 32, one end of which passes through the axis of the rotating plate 2 and is rotatably connected to it.

[0071] The inhalation tube 12 is rotatably connected to the part near the sealing pad 16. When the sealing pad 16 is rotated upward, the sealing pad 16 contacts the nose. When rotated downward, it is close to one end of the exhalation tube 11. The top of the sealing pad 16 is in the shape of a boss.

[0072] Specific workflow: The stabilizer 32 moves linearly along the axis within the exhalation tube 11 without rotating, so that the stabilizer 32 provides rotational support for the rotating plate 2, avoiding the increase of force on components such as the cleaning plate 24 during washing and cleaning, which could lead to deviation of the rotation trajectory, thereby improving the rotational stability of the rotating plate 2 and thus improving the long-term monitoring stability of the exhalation tube 11.

[0073] Furthermore, during cleaning after use, the exhalation tube 11 can be reciprocated and extended by adjusting the ring 15, while the rotating plate 2 remains in the same position, so that the rotating plate 2 can move back and forth inside the exhalation tube 11 to achieve the purpose of reciprocating cleaning, thereby improving the cleanliness of the exhalation tube and thus improving the monitoring accuracy of subsequent use.

[0074] Alternatively, workers can choose to install a hollow frame 32 and a rotating plate 2 that are interconnected. The frame 32 is connected to the condenser pipe 17 via a hose or to an external water source. Ice water is injected into the frame 32 and then into the rotating plate 2 via the hose to lower the temperature of the rotating plate 2. The water droplets condensed by the rotating plate 2 in contact with the breath are then thrown onto the inner wall of the exhalation tube 11, improving condensation efficiency and thus improving detection efficiency. Furthermore, the ice water injected into the rotating plate 2 can be centrifugally propelled outward from the pre-set gaps on the edge of the rotating plate 2 by the high-speed rotation of the rotating plate 2, creating a rapid rinsing effect of spraying the entire exhalation tube 11, thereby improving cleaning efficiency, reducing monitoring intervals, and improving system monitoring efficiency.

[0075] Because the inhalation tube 12 is rotatably connected to the sealing pad 16, and the sealing pad 16 contacts the nose when rotated upward and approaches the end of the exhalation tube 11 when rotated downward, when using the mask 1, the end of the inhalation tube 12 and the sealing pad 16 rotate upward and are fixed, with the sealing pad 16 extending into the nasal cavity for easy respiratory monitoring. When cleaning the mask 1, high-temperature steam or cleaning solution can be used to connect from the outward end of the inhalation tube 12, and the other end of the inhalation tube 12 drives the sealing pad 16 to rotate. The sealing pad 16 is adjusted by the adjusting ring 15 so that the boss-shaped sealing pad 16 is close to the port of the exhalation tube 11. The inhalation tube 12 and the exhalation tube 11 are connected by an external hose. The cleaning solution flows from one end of the inhalation tube 12 to the other end, then flows into one end of the exhalation tube 11, and flows out from the other end through the exhalation tube 11. This allows for quick cleaning of the inhalation tube 12 and the exhalation tube 11 in a single use, improving both cleaning effectiveness and ease of use.

[0076] Example 5:

[0077] A method for dynamic monitoring of chronic airway diseases based on wireless sensing, the monitoring method comprising the following steps:

[0078] Step 1: The patient wears and secures the mask 1 tightly, with the silicone edge fitting snugly against the face, ensuring a sealed airway without any leakage. The inhalation tube 12 controls air intake through valve 13, and the expiratory tube 11 controls exhalation through valve 13, thus achieving natural breathing.

[0079] Step 2: Outside air enters the mask 1 cavity through the inhalation tube 12. The airflow sensor in the inhalation tube 12 records the inhalation flow rate and volume. When the patient exhales, all the exhaled airflow passes through the exhalation tube 11. The airflow and CO2 data are collected simultaneously.

[0080] Step 3: The intelligent analysis unit calculates the lung function curve in real time, compares it with the thresholds for asthma and COPD classification, and controls the vibration warning of mobile phones and electrical appliances when it detects symptoms such as shallow and rapid breathing, loud wheezing, and abnormally high CO2.

[0081] Step 4: The intelligent analysis unit synchronously uploads the effective feature data to the mobile phone and the medical staff terminal management unit via the wireless communication transmission unit;

[0082] Step 5: The medical staff terminal management unit will store the monitoring data and generate a monitoring report.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic monitoring system for chronic airway diseases based on wireless sensing, comprising a wearable sensing unit, an edge signal processing unit, a wireless communication transmission unit, an intelligent analysis unit, and a medical staff / patient terminal management unit; characterized in that, The wearable sensing unit includes: A face mask (1) has an exhalation tube (11) and an inhalation tube (12) slidably connected to its side wall by a spring. The two ends of the inhalation tube (12) and the exhalation tube (11) are located on the inner and outer sides of the face mask (1), respectively. The inhalation tube (12) is located above the exhalation tube (11). The face mask (1) is equipped with a one-way valve (13) and a flow sensor evenly distributed in the inhalation tube (12) and the exhalation tube (11). The face mask (1) has a sealing gasket (14) on its edge. The sealing gasket (14) is funnel-shaped and has an arc-shaped cross section. An adjustment ring (15) is rotatably connected to the outer surface of the mask (1). The adjustment ring (15) is respectively fitted onto the exhalation tube (11) and the inhalation tube (12) and is threadedly connected. The end of the inhalation tube (12) near the nose is provided with a soft material sealing pad (16). The sealing pad (16) has a hole in the middle that communicates with the inside of the inhalation tube (12). The end of the exhalation tube (11) away from the mouth is provided with a ring of liquid detection sensors, and the center is provided with a gas detection sensor installed through a bracket. A condenser tube (17) is provided on the outside of the exhalation tube (11).

2. The dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 1, characterized in that: The mask (1) is rotatably connected to a rotating ring (18) near the adjusting ring (15). An outer magnet (19) is provided on the inner side of the rotating ring (18). A rotating plate (2) is slidably connected to the inner wall of the exhalation tube (11). An inner magnet (21) is provided on the part of the rotating plate (2) near the inner wall of the exhalation tube (11). The outer magnet (19) and the inner magnet (21) attract each other, and the rotating plate (2) contacts the inner wall of the exhalation tube (11) through a set ball bearing. The outer surface of the mask (1) A motor (22) is provided, which is connected to the rotating ring (18) for transmission. The rotating plate (2) is provided with a rotating shaft (23) on both sides. The rotating shaft (23) is connected to the rotating plate (2) through a torsion spring. A cleaning plate (24) and a cleaning cotton (25) are provided on the outer surface of one side of the rotating shaft (23). The cleaning plate (24) is located on one side of the cleaning cotton (25). The cleaning plate (24) is made of rubber. The part of the cleaning plate (24) that contacts the inner wall of the exhalation tube (11) is arc-shaped.

3. The dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 2, characterized in that: The condenser tube (17) is an elastic bladder type. The inlet of the condenser tube (17) is located on the outer surface, and the outlet is located on the inner surface. The outlet of the condenser tube (17) is provided with a nozzle (26). The nozzle (26) passes through the inner wall of the exhalation tube. One end of the inner wall of the nozzle (26) is hinged with a rotating hemisphere (27) by a torsion spring. The surface of the rotating hemisphere (27) is provided with a rubber layer and contacts the cleaning pad (24).

4. The dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 3, characterized in that: The cleaning plate (24) is provided with a support plate (28). One end of the support plate (28) is connected to the rotating plate (2). The cleaning plate (24) has a recess near the rotating hemisphere (27). The other end of the support plate (28) is located in the recess and is toothed.

5. A dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 4, characterized in that: The inner wall of the exhalation tube (11) is provided with a drainage groove (29), and the liquid detection sensor is distributed in the drainage groove (29). The drainage groove (29) is spirally arranged on the inner wall of the exhalation tube (11).

6. The dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 5, characterized in that: A flow-guiding block (3) is slidably connected inside the flow-guiding groove (29). The flow-guiding block (3) contacts the flow-guiding groove (29) through a ball bearing. The top of the flow-guiding block (3) is slidably connected to one side of the rotating plate (2).

7. A dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 6, characterized in that: The cross-section of the part of the exhalation tube (11) near the opening is hook-shaped and faces away from the mouth. A saliva tube (31) is provided in the inner wall of the exhalation tube (11). A liquid detector is distributed in the saliva tube (31). The saliva tube (31) is located in the drainage groove (29), and the drainage block (3) is in contact with the saliva tube (31).

8. A dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 7, characterized in that: The exhalation tube (11) has a built-in stabilizer (32), one end of which passes through the axis of the rotating plate (2) and is rotatably connected to it.

9. A dynamic monitoring system for chronic airway diseases based on wireless sensing according to claim 8, characterized in that: The inhalation tube (12) is rotatably connected to the part near the sealing pad (16), and when the sealing pad (16) rotates upward, the sealing pad (16) contacts the nose, and when it rotates downward, it is close to one end of the exhalation tube (11). The top of the sealing pad (16) is a boss shape.

10. A method for dynamic monitoring of chronic airway diseases based on wireless sensing, wherein the monitoring method is applicable to the monitoring system according to any one of claims 1-9, characterized in that: The monitoring method steps are as follows: Step 1: The patient wears a mask (1) and fastens it tightly, with the silicone edge close to the face, ensuring a sealed airway without leakage. The inhalation tube (12) controls air intake through the valve (13), and the expiratory tube (11) controls exhalation through the valve (13), thus achieving natural breathing. Step 2: Outside air enters the mask (1) cavity through the inhalation tube (12), and the airflow sensor in the inhalation tube (12) records the inhalation flow rate and volume; when the patient exhales, all the exhaled airflow passes through the exhalation tube (11), and the airflow and CO2 data are collected simultaneously. Step 3: The intelligent analysis unit calculates the lung function curve in real time, compares it with the thresholds for asthma and COPD classification, and controls the vibration warning of mobile phones and electrical appliances when it detects symptoms such as shallow and rapid breathing, loud wheezing, and abnormally high CO2. Step 4: The intelligent analysis unit synchronously uploads the effective feature data to the mobile phone and the medical staff terminal management unit via the wireless communication transmission unit; Step 5: The medical staff terminal management unit will store the monitoring data and generate a monitoring report.

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