An adult airway unblocker

Abstract

The application relates to the technical field of medical devices, and discloses a respiratory tract unblocking device for adults, which comprises a mask type limiting mechanism and an energy storage type suction mechanism. The structure comprises an upper hollow shell which is rotatably arranged above an oral cavity cover body and has a hollow structure inside, a piston plate which is arranged inside the upper hollow shell and can realize gas suction, an upper fan-shaped permanent magnet which can be matched with a lower fan-shaped permanent magnet to realize opening and closing, and a spiral spring which can generate elastic force on the piston plate. The respiratory tract unblocking device for adults utilizes the energy storage effect of the spiral spring after compression, so that the piston can instantly generate suction force, thereby improving the automation degree of the equipment, improving the instantaneous suction strength of the equipment, and enhancing the respiratory tract unblocking capacity of the equipment.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an adult airway obstruction removal device. Background Technology

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items that are used directly or indirectly on the human body, including the necessary computer software. Medical devices include medical equipment and medical consumables. Their efficacy is mainly obtained through physical means, not through pharmacological, immunological or metabolic means, or although these means are involved, they only play an auxiliary role. In respiratory medicine, patients' airways often develop a certain amount of obstruction, which affects the life safety of respiratory patients. Airway obstruction removal devices are often needed to remove the obstruction from patients' airways.

[0003] For example, Chinese patent publication number "CN221286434U" discloses a "Breathway Clearing Device for Respiratory Medicine," whose main structure is a clearing suction cylinder. A sealing piston is slidably connected to the inside of the clearing suction cylinder. A connector is fixedly connected to the right end of the clearing suction cylinder, and a suction tube is snapped into one end of the connector. A sliding hole is opened at the end of the clearing suction cylinder away from the connector, and a pull rod is slidably connected to the sliding hole. One end of the pull rod is fixedly connected to the sealing piston, and the other end of the pull rod is located outside the clearing suction cylinder. A discharge head is fixedly connected to the bottom surface of the clearing suction cylinder, and a detachable collection cylinder is connected to the bottom end of the discharge head. This breathway clearing device for respiratory medicine, through its designed lifting plate, support spring, arc-shaped buckle plate, and protective pad, can fasten the arc-shaped buckle plate to the patient's mouth. Through the cooperation of the support spring and the lifting plate, it can effectively support the patient's mouth, effectively preventing the mouth from closing and facilitating safe clearing of the patient's airway.

[0004] In actual use, when it suctions the airway, it only relies on pulling the lever with both hands to move the piston upward, thereby providing negative pressure for inhalation. Because the hand-pulling action is relatively slow, the instantaneous suction force of the negative pressure is relatively weak. Therefore, there is insufficient instantaneous suction force, resulting in poor airway clearance. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an adult airway obstruction removal device. By utilizing the energy storage effect of a coil spring after compression, the piston can instantly generate suction, thereby improving the automation level of the device and increasing the instantaneous suction strength, thus enhancing the device's airway clearing ability and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adult airway obstruction relief device, comprising a mask-type limiting mechanism, the structure of which includes an oral mask body that can cover the patient's mouth and has a hollow internal structure, a lower fixing plate placed at the top center of the oral mask body and fixedly connected to the oral mask body, and three lower fan-shaped permanent magnets embedded in the top of the lower fixing plate; and an energy storage suction mechanism, the structure of which includes an upper hollow shell that is rotatably installed directly above the oral mask body and has a hollow internal structure, a piston plate placed inside the upper hollow shell and capable of gas suction, an upper fan-shaped permanent magnet that can cooperate with the lower fan-shaped permanent magnets to achieve opening and closing, and a helical spring that generates an elastic force on the piston plate.

[0007] Preferably, the mask-type limiting mechanism further includes an air intake chamber disposed on the concave surface of the oral mask body. A sealing gasket is installed at the bottom open end of the oral mask body. A lower pipe structure integrally formed with the oral mask body is disposed at the top center. A ventilation chamber with an open top and connected to the air intake chamber at the bottom is disposed at the center of the lower pipe structure. A lower fixing plate is fixedly installed at the center of the ventilation chamber. There is a ventilation gap for gas flow between the circumferential side of the lower fixing plate and the circumferential inner wall of the ventilation chamber. The upper surface of the lower fixing plate is provided with three concave lower embedding grooves, and a lower fan-shaped permanent magnet is embedded inside each lower embedding groove.

[0008] Preferably, the structural shape of the bottom opening of the oral mask body is adapted to the curvature of the outer periphery of the human mouth.

[0009] Preferably, the three lower sector-shaped permanent magnets are arranged in a ring array inside the top of the lower fixed disk.

[0010] Preferably, the energy storage suction mechanism further includes a bottom mounting cover structure integrally disposed at the bottom of the upper hollow shell. The upper hollow shell has a component movable cavity inside, and a limit port is provided at the bottom of the component movable cavity. The bottom mounting cover structure is mounted on the top of the lower pipe structure via bearings and sealing rings. Three middle limit plates are installed in the middle of the outer circumference of the upper hollow shell. Each middle limit plate has a side rod through-hole with open ends inside. The top of the upper hollow shell has a central rod through-hole connecting the top of the component movable cavity to the external space. A piston plate capable of moving axially is placed inside the component movable cavity. The piston plate has a downwardly protruding upper moving disk at its bottom center. The bottom of the upper moving disk has three concave upper embedding slots, and each upper embedding slot has an upper fan-shaped permanent magnet embedded inside. The top of the piston plate has a movable rod that passes through the central rod through a hole. The top of the movable rod has a moving plate. The outer circumference of the moving plate has three integrated upper limit plates. The bottom of each upper limit plate has a limiting rod that passes through the corresponding side rod through a hole. The bottom end of the limiting rod has a lower limiting plate. A helical spring is sleeved around the rod located between the middle limiting plate and the upper limiting plate.

[0011] Preferably, the three upper sector-shaped permanent magnets are arranged in a ring array inside the bottom end of the upper moving disk.

[0012] Preferably, the three lower sector-shaped permanent magnets are respectively arranged in relation to the three upper sector-shaped permanent magnets, and the magnetic poles on the upper surface of the lower sector-shaped permanent magnets are opposite to the magnetic poles on the lower surface of the upper sector-shaped permanent magnets.

[0013] Preferably, the initial length of the helical spring is greater than the length of the limiting rod.

[0014] This invention consists of a mechanical actuator and an electronic closed-loop control system. The two work together to achieve fully automated control of the entire process, including energy storage, sealing, triggering, negative pressure regulation, and blockage detection. The feedback mechanism is as follows: The mechanical actuator ensures instantaneous negative pressure output through dynamic optimization: Spring energy storage formula: Elastic potential energy E = 1 / 2kx0 2 When the energy is released, it is converted into piston kinetic energy E. k =1 / 2mv 2 +W resistance, where W resistance is the work done by the frictional resistance and airflow resistance of the piston movement; Instantaneous negative pressure formula: ΔP max =kx0 2 / (2S)-W resistance / S, by limiting the spring constant k and the compression stroke x0, ensure ΔP max Within the safe and effective range, i.e., 5kPa-15kPa.

[0015] The electronic closed-loop control system adopts a dual-input and dual-output closed-loop control architecture, with the input being the pressure signal P. t The output, along with the angle signal θ, consists of an electromagnetic coil current I and an audible and visual alarm signal. The core control logic is as follows: Step 1: The self-locking state detection feedback angle sensor outputs a θ signal, and the main control module makes a logical judgment: If |θ|≤5°: the self-locking is deemed effective and the system enters standby mode; If 5° < |θ| < 55°: it is determined to be a misoperation, triggering an audible and visual alarm, and simultaneously supplying a weak positive current to the electromagnetic coil to enhance the magnetic attraction force and prevent accidental unlocking; If |θ|≥60°: it is determined to be fully unlocked, and negative pressure monitoring is activated.

[0016] Negative pressure adaptive adjustment feedback real-time calculation of instantaneous negative pressure ΔP=P0-P t A threshold control algorithm is used to achieve negative pressure closed loop: When ΔP <P min (Default 8kPa): If the suction is deemed insufficient, a second suction will be automatically triggered, with a maximum of 5 consecutive suctions. When P min ≤ΔP≤P max (Default 12kPa): This is considered normal blockage clearance; pressure changes will be continuously monitored. When ΔP>P max If the negative voltage is determined to be excessive, immediately apply a positive current I=k to the electromagnetic coil. i (ΔP-P max This generates additional magnetic resistance F_magnet' = k B I. Slow down the piston's upward movement speed to limit the negative pressure peak to P. max Keep inside to avoid respiratory tract damage.

[0017] The automatic judgment of airway clearance completion is based on the air pressure change characteristics to establish an airway clearance judgment model: when the air pressure fluctuation in the oral cavity is ≤10Pa and lasts for more than 5 seconds after 3 consecutive suctioning, the airway is determined to be clear, suctioning is automatically stopped and a completion prompt is generated.

[0018] Compared with the prior art, the present invention provides an airway obstruction removal device for adults, which has the following beneficial effects: By utilizing the energy storage effect of the coil spring after compression, the piston can generate suction force instantly, thereby improving the automation level of the equipment and increasing the instantaneous suction strength, thus enhancing the equipment's ability to clear the airway. The device uses electronic closed-loop regulation to adjust the peak negative pressure, avoiding respiratory mucosal damage caused by excessive negative pressure in traditional devices; it automatically judges the unblocking status and triggers secondary suction, reducing manual intervention; angle detection and electromagnetic resistance increase provide dual protection; it records unblocking data and supports wireless transmission; and it retains a backup plan of pure mechanical rotation triggering and manual electronic triggering to ensure safe use in extreme situations. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the mask-type limiting mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the mask-type limiting mechanism in this invention; Figure 5 This is a perspective view of the energy storage suction mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the energy storage suction mechanism in this invention.

[0020] The components include: 1. Mask-type limiting mechanism; 11. Oral mask body; 12. Sealing gasket; 13. Inhalation chamber; 14. Lower pipe structure; 15. Lower fixed plate; 16. Ventilation notch; 17. Lower embedded groove; 18. Lower fan-shaped permanent magnet; 19. Ventilation chamber; 2. Energy storage suction mechanism; 21. Upper hollow shell; 22. Bottom mounting cover structure; 23. Component movable cavity; 24. Limiting port; 25. Piston plate; 26. Upper moving plate; 27. Upper embedded groove; 28. Upper fan-shaped permanent magnet; 29. ​​Central rod through hole; 210. Moving rod; 211. Moving plate; 212. Upper limit plate; 213. Middle limit plate; 214. Side rod through hole; 215. Lower limit plate; 216. Limiting rod; 217. Helical spring. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 and Figure 2 An adult airway obstruction relief device requires blocking the patient's closed mouth during use to ensure the suction capacity of the airway and guarantee the effectiveness of airway suction.

[0023] To achieve control over the suction action and to cover the patient's mouth, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 and Figure 4 A mask-type limiting mechanism 1 needs to be set up. Its structure includes an oral mask 11 that can cover the patient's mouth and has a hollow internal structure, a lower fixing plate 15 placed at the top center of the oral mask 11 and fixedly connected to the oral mask 11, and three lower sector-shaped permanent magnets 18 embedded in the top of the lower fixing plate 15. When in use, the three lower sector-shaped permanent magnets 18 need to be aligned with the three upper sector-shaped permanent magnets 28 so that their contact surfaces overlap. Then, the oral mask 11 is pressed against the outside of the patient's mouth. The sealing gasket 12 can ensure that the gas in the oral cavity is isolated from the outside world to ensure the airtightness of the gas channel.

[0024] For the specific structure of the mask-type limiting mechanism 1, please refer to [link / reference]. Figure 3 and Figure 4 It also includes an air intake chamber 13 disposed on the concave surface of the oral mask 11. A sealing gasket 12 is installed at the bottom opening end of the oral mask 11. A lower pipe structure 14 integrally formed with the oral mask 11 is disposed at the top center. A ventilation chamber 19 with an open top and connected to the air intake chamber 13 at the bottom is disposed at the center of the lower pipe structure 14. A lower fixing plate 15 is fixedly installed at the center of the ventilation chamber 19. There is a ventilation gap 16 for gas flow between the circumferential side of the lower fixing plate 15 and the circumferential inner wall of the ventilation chamber 19. Three concave lower embedding grooves 17 are disposed on the upper surface of the lower fixing plate 15. A lower fan-shaped permanent magnet 18 is embedded in the interior of each lower embedding groove 17. The structural shape of the bottom opening end of the oral mask 11 is adapted to the curvature of the outer periphery of the human mouth. The three lower fan-shaped permanent magnets 18 are arranged in a ring array inside the top of the lower fixing plate 15.

[0025] To achieve the energy storage airway suction function, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 5 and Figure 6A storage-type suction mechanism 2 needs to be installed. Its structure includes an upper hollow shell 21, rotatably mounted directly above the oral mask 11 and having a hollow interior; a piston plate 25 placed inside the upper hollow shell 21 to achieve gas suction; an upper sector-shaped permanent magnet 28 that cooperates with the lower sector-shaped permanent magnet 18 to achieve opening and closing; and a spiral spring 217 that exerts an elastic force on the piston plate 25. When the moving plate 211 is pressed down, the spiral spring 217 is compressed, and simultaneously, the upper sector-shaped permanent magnet 28 moves downward. When the upper sector-shaped permanent magnet 28 comes into contact with the lower sector-shaped permanent magnet 18, due to the repulsion of like poles and the attraction of unlike poles, the upper sector-shaped permanent magnet 28 is attracted and fixed. The oral mask 11 is then pressed onto the patient. The sealing gasket 12 at the outside of the oral cavity ensures that the gas in the oral cavity is isolated from the outside. When the suction action is required, the entire energy storage suction mechanism 2 is rotated. At this time, the upper sector permanent magnet 28 and the lower sector permanent magnet 18 are misaligned. When the two are completely misaligned, the attraction between the upper sector permanent magnet 28 and the lower sector permanent magnet 18 disappears. At this time, the elastic potential energy of the helical spring 217 is released, which causes the upper moving plate 26 to move upward rapidly. At the same time, the piston plate 25 moves upward rapidly, and the piston plate 25 causes the air pressure in the space below it to decrease, thereby causing the air in the patient's oral cavity to be drawn out, thus forming a suction force on the patient's airway. This suction force can generate suction force on the blockage, thereby sucking out the blockage.

[0026] For details regarding the specific structure of the energy storage suction mechanism 2, please refer to [link / reference]. Figure 5 and Figure 6It also includes a bottom mounting cover structure 22 integrally disposed at the bottom of the upper hollow shell 21. The upper hollow shell 21 has a component movable cavity 23 inside. The bottom of the component movable cavity 23 has a limit port 24. The bottom mounting cover structure 22 is mounted on the top of the lower pipe structure 14 through bearings and sealing rings. Three middle limit plates 213 are installed in the middle of the outer circumference of the upper hollow shell 21. Each middle limit plate 213 has a side rod through hole 214 with open ends inside. The top of the upper hollow shell 21 has a central rod through hole 29 connecting the top of the component movable cavity 23 and the external space. A piston plate 25 capable of moving along its axial direction is placed inside the component movable cavity 23. An upper moving disk 26 with a downward protrusion is provided at the bottom center of the piston plate 25. The bottom of the upper moving disk 26 has three concave upper embedding grooves 27. Each upper embedding groove 27 has an upper fan-shaped permanent magnet embedded inside. The magnet 28 has a movable rod 210 fixedly installed at the top of the piston plate 25, which passes through the central rod hole 29. A movable plate 211 is fixedly installed at the top of the movable rod 210. Three integrated upper limit plates 212 are arranged around the periphery of the movable plate 211. A limiting rod 216, passing through the corresponding side rod hole 214, is fixedly installed at the bottom of each upper limit plate 212. A lower limit plate 215 is fixedly installed at the bottom of each limiting rod 216. A helical spring 217 is sleeved around the rod body located between the middle limiting plate 213 and the upper limiting plate 212. The three upper sector-shaped permanent magnets 28 are arranged in a ring array inside the bottom end of the upper moving disk 26. The three lower sector-shaped permanent magnets 18 are respectively arranged corresponding to the three upper sector-shaped permanent magnets 28, and the magnetic poles on the upper surface of the lower sector-shaped permanent magnets 18 are opposite to the magnetic poles on the lower surface of the upper sector-shaped permanent magnets 28. The initial length of the helical spring 217 is greater than the length of the rod body of the limiting rod 216.

[0027] In use, pressing down on the movable plate 211 compresses the helical spring 217, causing the upper sector-shaped permanent magnet 28 to move downwards. When the upper sector-shaped permanent magnet 28 contacts the lower sector-shaped permanent magnet 18, it is attracted and fixed due to the repulsion of like poles and the attraction of unlike poles. The oral cavity mask 11 is then pressed against the outside of the patient's mouth. The sealing gasket 12 ensures that the gas in the oral cavity is isolated from the outside environment. When suction is required, rotating the entire energy-storing suction mechanism 2 causes the upper sector-shaped permanent magnet 28 and the lower sector-shaped permanent magnet 18 to become misaligned. Once they are completely misaligned... When the attraction between the upper sector permanent magnet 28 and the lower sector permanent magnet 18 disappears, the elastic potential energy of the helical spring 217 is released, causing the upper moving disk 26 to move upward rapidly. At the same time, the piston plate 25 moves upward rapidly, and the piston plate 25 causes the air pressure in the space below it to decrease, thereby drawing air out of the patient's mouth and creating a suction force on the patient's airway. This suction force can attract the obstruction and draw it out. During use, in order to ensure the suction capacity of the airway, it is necessary to block the patient's mouth during use to ensure the effectiveness of airway suction.

[0028] In some embodiments, the spring constant k = 800 N / m, the maximum compression stroke x0 = 20 mm, and the piston plate cross-sectional area S = 0.001256 m². 2 Theoretical maximum instantaneous negative pressure ΔP max =12.7kPa, meeting clinical safety requirements; the pressure detection module uses a high-precision MEMS pressure sensor with a measurement range of 0-100kPa and an accuracy of ±10Pa; the angle detection module uses a 12-bit Hall angle sensor with a resolution of 0.088°; the main control module uses an STM32L051 low-power microcontroller, and the power supply module uses a 3.7V lithium battery with a battery life of ≥100 suction cycles.

[0029] When using it, first press the moving plate to complete the energy storage and self-locking, then place the oral mask against the patient's mouth. After the ready indicator light is on, you can choose to rotate the upper shell to trigger mechanically or press the electronic button to trigger. The main control module monitors the negative pressure in real time. If the suction is insufficient, it will automatically perform a second suction. If the negative pressure exceeds the standard, it will automatically slow down. After the blockage is cleared, it will automatically prompt and upload the data to the nurse station monitoring terminal.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for clearing airway obstruction in adults, characterized in that: include, The mask-type limiting mechanism (1) includes an oral mask (11) that can cover the patient's mouth and has a hollow structure, a lower fixing plate (15) placed at the top center of the oral mask (11) and fixedly connected to the oral mask (11), and three lower fan-shaped permanent magnets (18) embedded in the top of the lower fixing plate (15). And an energy storage suction mechanism (2), the structure of which includes an upper hollow shell (21) that is rotatably mounted directly above the oral cavity mask (11) and has a hollow internal structure, a piston plate (25) placed inside the upper hollow shell (21) and capable of gas suction, an upper fan-shaped permanent magnet (28) that can cooperate with the lower fan-shaped permanent magnet (18) to achieve opening and closing, and a helical spring (217) that generates an elastic force on the piston plate (25).

2. The adult airway obstruction relief device according to claim 1, characterized in that: The mask-type limiting mechanism (1) also includes an air intake chamber (13) disposed on the concave surface of the oral mask body (11). A sealing gasket (12) is installed at the bottom opening end of the oral mask body (11). A lower pipe structure (14) integral with the oral mask body (11) is disposed at the top center. A ventilation chamber (19) with an open top and connected to the air intake chamber (13) is disposed at the center of the lower pipe structure (14). A lower fixing plate (15) is fixedly installed at the center of the ventilation chamber (19). There is a ventilation gap (16) for gas flow between the circumferential side surface of the lower fixing plate (15) and the circumferential inner wall of the ventilation chamber (19). Three concave lower embedding grooves (17) are disposed on the upper surface of the lower fixing plate (15). A lower fan-shaped permanent magnet (18) is embedded inside each lower embedding groove (17).

3. The adult airway obstruction relief device according to claim 2, characterized in that: The shape of the bottom opening of the oral mask (11) is adapted to the curvature of the outer periphery of the human mouth.

4. The adult airway obstruction relief device according to claim 3, characterized in that: The three lower sector permanent magnets (18) are arranged in a ring array inside the top of the lower fixed disk (15).

5. The adult airway obstruction relief device according to claim 4, characterized in that: The energy storage suction mechanism (2) also includes a bottom mounting cover structure (22) integrally disposed at the bottom of the upper hollow shell (21). The upper hollow shell (21) has a component movable cavity (23) inside. The bottom of the component movable cavity (23) is provided with a limit port (24). The bottom mounting cover structure (22) is installed on the top of the lower pipe structure (14) through bearings and sealing rings. Three middle limit plates (213) are installed in the middle of the outer circumference of the upper hollow shell (21). Each middle limit plate (213) has a side rod through hole (214) with open structure at both ends inside. The top of the upper hollow shell (21) is provided with a central rod through hole (29) connecting the top of the component movable cavity (23) and the outside space. The component movable cavity (23) is equipped with a piston plate (25) that can move along its axial direction inside. The bottom center of the piston plate (25) is provided with a... There is a downward protruding upper moving disk (26), and the bottom of the upper moving disk (26) is provided with three concave upper embedding grooves (27). Each upper embedding groove (27) is embedded with an upper fan-shaped permanent magnet (28). The piston plate (25) is fixedly installed with a movable rod (210) that passes through the central rod body through hole (29). The movable rod (210) is fixedly installed with a moving plate (211) at the top. The moving plate (211) is provided with three integrated upper limit plates (212) around its circumference. Each upper limit plate (212) is fixedly installed with a limiting rod (216) that passes through the corresponding side rod body through hole (214) at the bottom. The lower limit plate (215) is fixedly installed at the bottom of the limiting rod (216). The limiting rod (216) is fitted with a helical spring (217) around the rod body located between the middle limit plate (213) and the upper limit plate (212).

6. The adult airway obstruction relief device according to claim 5, characterized in that: The three upper sector permanent magnets (28) are arranged in a ring array inside the bottom end of the upper moving disk (26).

7. The adult airway obstruction relief device according to claim 6, characterized in that: The three lower sector permanent magnets (18) are respectively set with the three upper sector permanent magnets (28), and the magnetic poles on the upper surface of the lower sector permanent magnets (18) are opposite to the magnetic poles on the lower surface of the upper sector permanent magnets (28).

8. The adult airway obstruction relief device according to claim 7, characterized in that: The initial length of the helical spring (217) is greater than the length of the limit rod (216).

9. The adult airway obstruction system of the adult airway obstruction device according to any one of claims 1-8, characterized in that: The energy storage suction mechanism is equipped with an electronic control unit, which includes a pressure detection module, an angle detection module, an electromagnetic unlocking module, a main control module, and a power supply module. The pressure detection module is installed inside the suction chamber of the oral cavity mask to collect the air pressure signal in the patient's oral cavity in real time. The angle detection module is installed at the rotational connection between the upper hollow shell and the lower pipe structure to collect the rotation angle signal of the upper hollow shell. The electromagnetic unlocking module is installed inside the lower fixed plate to assist in releasing the magnetic self-locking of the upper and lower sector-shaped permanent magnets. The main control module is electrically connected to the pressure detection module, the angle detection module, and the electromagnetic unlocking module, respectively, and is used to generate control commands based on the air pressure signal and the angle signal to realize negative pressure closed-loop regulation and automatic blockage control. The main control module has a built-in negative pressure threshold adjustment unit and a blockage status judgment unit. The negative pressure threshold adjustment unit is used to preset the safe negative pressure upper limit value P. max And the effective negative pressure lower limit P min The blockage status determination unit determines the blockage status based on the real-time air pressure P. t Calculate the instantaneous negative pressure ΔP = P0 - P t Where P0 is standard atmospheric pressure, when ΔP <P min And when the duration exceeds t1, the main control module generates a secondary trigger command; The electromagnetic unlocking module includes three electromagnetic coils that correspond one-to-one with the lower sector permanent magnet. The electromagnetic coils are embedded in the bottom of the lower embedded slot of the lower fixed plate. When the main control module generates a trigger command, a reverse current is passed into the electromagnetic coil to generate a canceling magnetic field opposite to the magnetic field of the lower sector permanent magnet, so that the magnetic attraction force F_joint between the upper and lower sector permanent magnets is less than the spring force F_spring, thus realizing automatic unlocking. The angle detection module is a Hall angle sensor, and its output angle signal θ is used to determine the alignment status of the upper and lower sector permanent magnets: when θ=0°±5°, it is determined to be in a self-locking state; when θ=60°±5°, it is determined to be in a fully unlocked state; when θ is in the range of 5°-55°, the main control module generates an audible and visual alarm command to indicate the risk of misoperation. The electronic control unit also includes an audible and visual alarm module and an OLED display module. The audible and visual alarm module is electrically connected to the main control module and is used to issue an alarm in case of misoperation, abnormal negative pressure, or low battery. The OLED display module is used to display the current negative pressure value, remaining battery power, number of suction attempts, and blockage clearance status in real time. The main control module has a built-in data storage unit and a wireless transmission unit. The data storage unit is used to record the time, peak negative pressure, duration and number of suctions for each suction. The wireless transmission unit is used to upload the blockage data to the medical monitoring terminal in real time to realize remote emergency data synchronization. The spring constant k of the helical spring satisfies: k ≥ (2mΔP) max S) / x0 2 Where m is the total mass of the piston plate and the moving rod, S is the cross-sectional area of ​​the piston plate, and x0 is the maximum compression stroke of the helical spring to ensure that no less than P is generated during energy release. max Instantaneous negative pressure; The electronic control unit also includes a manual trigger backup switch, which is installed on the outer surface of the upper hollow housing. When the electronic system fails, pressing the manual trigger backup switch directly drives the electromagnetic unlocking module to complete the unlocking, while retaining pure mechanical rotation triggering as a final backup solution.

10. The adult airway obstruction removal system according to claim 9, characterized in that: Includes the following steps: S1 Pre-pressurization and energy storage: Pressing down on the moving plate compresses the spiral spring, and the upper and lower fan-shaped permanent magnets are aligned and attracted to achieve self-locking. After the main control module confirms the self-locking state through the angle detection module, it enters standby mode. S2 Seal Initialization: The oral mask is placed against the patient's mouth. The pressure detection module collects the air pressure signal in real time. When the air pressure is stable and 50Pa lower than atmospheric pressure, the seal is determined to be complete and the main control module lights up the ready indicator. S3 Trigger Control: Supports both mechanical and electronic triggering modes. S3.1 Mechanical Trigger: Rotating the upper hollow shell causes the upper and lower sector-shaped permanent magnets to misalign. When the angle detection module detects θ=60°, the main control module confirms unlocking, and the spiral spring releases energy to generate instantaneous negative pressure. S3.2 Electronic Trigger: Pressing the electronic trigger button causes the main control module to supply a reverse current to the electromagnetic coil, which cancels the magnetic attraction force and achieves automatic unlocking. S4 closed-loop feedback: The main control module calculates the instantaneous negative pressure ΔP in real time. If ΔP <P min And if it lasts for t1=2s, a second suction will be automatically triggered; if ΔP>P max This immediately drives the electromagnetic coil to generate a positive magnetic field, increasing magnetic resistance to slow down the piston's upward movement and limit the negative pressure peak. S5 Clearance Completion Judgment: When the air pressure in the oral cavity returns to atmospheric pressure ±10Pa after 3 consecutive suctions and lasts for t2=5s, the clearance is determined to be complete. The main control module generates a completion prompt and stores the clearance data for this time.

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