Eustachian tube blowing and expanding device and using method

Abstract

The invention discloses an auditory tube blowing device and a using method, and belongs to the technical field of auditory tube blowing devices. The auditory tube blowing device comprises a shell, a motor is arranged in the shell, an air pump is arranged at one end of the motor, an air pump exhaust port is formed in one end of the air pump, an air inlet and a pressure relief port are formed in one side of the air pump, and a connecting pipe is arranged at one end of the pressure relief port; an electronic pressure release valve and a mechanical pressure release valve are arranged at one end of the connecting pipe and are connected in parallel or in series; one end of the shell is provided with a fixing piece, one end of the fixing piece is provided with a connector, one end of the connector is provided with a plug, the plug is communicated with an air pump exhaust port, and one end of the air pump exhaust port is provided with an air pressure detection port; and the air pressure detection device is arranged on the plug, the end part of the plug and a connecting port between the air pump exhaust port and the lower end of the fixing piece. And through double pressure relief protection and pressure monitoring, pressure closed-loop control is achieved, and requirements of different use scenes are met. Pressure dynamic changes are captured in real time, abnormal conditions are quickly responded, and operation safety is guaranteed.

Description

Technical Field

[0001] This invention belongs to the technical field of eustachian tube inflators, specifically relating to an eustachian tube inflator and its usage method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] The Eustachian tube, a crucial passage connecting the middle ear and nasopharynx, plays a vital role in regulating middle ear pressure balance, draining middle ear secretions, and maintaining a normal air pressure environment for the hearing conduction system. Its proper functioning directly impacts the stable operation of related physiological mechanisms. In daily activities, changes in air pressure during activities such as flying and diving, or conditions like upper respiratory tract infections, allergic reactions, nasopharyngeal lesions, and barotrauma, can all lead to Eustachian tube dysfunction, causing a series of uncomfortable symptoms and significantly affecting the user experience.

[0004] Medical air blowers have become an important intervention tool for improving Eustachian tube dysfunction. However, existing air blower products still have significant shortcomings: most devices lack active and precise pressure relief mechanisms, fail to establish an effective dual protection system for pressure safety thresholds, and rely solely on a single pressure relief method or passive pressure relief design, making it difficult to cope with complex situations such as abnormally high pressure or excessively rapid pressure rise. Furthermore, existing devices do not fully consider the pressure adaptation requirements of different usage scenarios, lack flexible and adjustable pressure control modes and protection designs, and cannot quickly initiate effective pressure relief operations when the pressure exceeds the safe range, leading to persistent abnormal pressure and unnecessary impact on related structures. In addition, existing devices lack accuracy in pressure monitoring, making it difficult to accurately capture dynamic pressure changes and provide timely feedback adjustments, failing to achieve closed-loop pressure control, resulting in poor safety. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a eustachian tube inflator and its usage method. Through dual pressure relief protection and pressure monitoring, it achieves closed-loop pressure control, adapting to different application scenarios. It captures dynamic pressure changes in real time, rapidly responds to abnormal situations, and ensures operational safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A eustachian tube inflator and its method of use include a housing, a motor disposed inside the housing, an air pump disposed at one end of the motor, an air pump exhaust port disposed at one end of the air pump, an air inlet and a pressure relief port disposed on one side of the air pump, a connecting pipe disposed at one end of the pressure relief port, and an electronic pressure relief valve and a mechanical pressure relief valve disposed at one end of the connecting pipe, wherein the electronic pressure relief valve and the mechanical pressure relief valve are connected in parallel or in series. A fixing member is provided at one end of the outer shell, a connector is provided at one end of the fixing member, a plug is provided at one end of the connector, the plug is connected to the air pump exhaust port, and an air pressure detection port is provided at one end of the air pump exhaust port; an air pressure detection device is provided on the plug, at the end of the plug, and at the connection port between the air pump exhaust port and the lower end of the fixing member.

[0007] As a further technical solution, a protective ring is fitted on the outer side of the outer shell. The outer shell includes a first shell and a second shell. Several latches are spaced apart on the first shell to lock the first shell and the second shell together. A mode button frame is provided at one end of the first shell, and a mode button is provided inside the mode button frame.

[0008] As a further technical solution, one end of the button mode frame is provided with a switch frame, which is set on the housing and a switch is set inside the switch frame; a start button frame is provided on the first housing and a start button is set inside the start button frame; an indicator light is provided at the lower end of the start button frame and a charging port is provided at the bottom of the housing.

[0009] As a further technical solution, the end of the outer shell is a front shell, and a conduit connector is provided inside the front shell. One end of the conduit connector is connected to the connector head, and the other end of the conduit connector is connected to the exhaust port of the air pump.

[0010] As a further technical solution, a top cover is provided on the front end shell, and the top cover is snapped into the front end cover. A screen frame is provided on one side of the front end cover, and a screen is installed inside the screen frame. A connector is provided at one end of the screen and the connector is connected to the motherboard.

[0011] As a further technical solution, the motherboard is disposed inside the housing, a battery is disposed at one end of the motherboard, and a solenoid valve is disposed at the lower end of the battery. Both the battery and the solenoid valve are electrically connected to the motherboard.

[0012] A method for using a Eustachian tube inflator includes the following steps: Turn on the switch and select the appropriate working mode using the mode button. The indicator light will show the current mode when switching modes. Different modes correspond to different pressure ranges. Confirm that the set pressure information and working mode displayed on the screen meet your needs. Press the start button, and the motor will drive the air pump to start working. The equipment will carry out the pressurization process according to the selected mode, and the screen will display the pressure changes and pressure curve in real time. During operation, the air pressure detection device continuously monitors the pressure status in the air circuit, captures pressure change signals, and feeds them back to the main board in real time. It employs a series or parallel connection of mechanical and electronic pressure relief valves, which automatically start or close according to preset logic, always maintaining the pressure within a safe range.

[0013] As a further technical solution, in the series mode, when the pressure is detected to exceed the preset standard of the mechanical pressure relief valve, the mechanical pressure relief valve will open first to relieve pressure; if the pressure is not effectively controlled and continues to rise to the preset standard of the electronic pressure relief valve, the electronic pressure relief valve will then be activated to complete the pressure relief operation in concert. As a further technical solution, in parallel mode, the electronic pressure relief valve releases pressure first. When the pressure reaches its preset standard, it immediately starts to release pressure. If the electronic pressure relief valve malfunctions and fails to respond normally, or if the pressure rises too quickly, the electronic pressure relief valve cannot effectively suppress the pressure rise after opening. When the pressure reaches the preset standard of the mechanical pressure relief valve, the mechanical pressure relief valve will be activated as a backup.

[0014] As a further technical solution, if an abnormal pressure drop signal is detected during operation, the motherboard will quickly identify it and issue a command to control the air pump to stop pressurizing; when the pressure is lower than the set standard, the motherboard will command the air pump to resume operation and maintain a stable pressurization state.

[0015] Compared with the prior art, the advantages and positive effects of this invention are: This invention connects a mechanical pressure relief valve and an electronic pressure relief valve in series or parallel. A pressure detection port at the air pump's exhaust port enables real-time pressure monitoring, achieving dual pressure relief protection and monitoring. In series mode, the mechanical pressure relief valve opens first when the pressure exceeds a preset standard. If the pressure continues to rise, the electronic pressure relief valve activates simultaneously for coordinated pressure relief. In parallel mode, the electronic pressure relief valve responds first to the pressure signal and opens to relieve pressure. When the electronic pressure relief valve malfunctions or the pressure rises too quickly to effectively relieve pressure, the mechanical pressure relief valve activates as a backup, ensuring the pressure remains within a safe range. The pressure detection port captures dynamic pressure changes within the air circuit and feeds the signal back to the main board in real time. The main board adjusts the operating state of the motor-driven air pump through closed-loop control logic to achieve stable pressure control. Furthermore, the device supports multiple operating modes, allowing users to select the appropriate mode based on actual needs, making it highly adaptable. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Figure 1 This is a schematic diagram of the structure of the Eustachian tube inflator of the present invention; Figure 2 This is an explosion demonstration of the Eustachian tube inflator of the present invention. Figure 1 ; Figure 3 This is an explosion demonstration of the Eustachian tube inflator of the present invention. Figure 2 ; Figure 4This is a schematic diagram showing the series connection of the electronic pressure relief valve and the mechanical pressure relief valve of the present invention; Figure 5 This is a schematic diagram of the parallel connection of the electronic pressure relief valve and the mechanical pressure relief valve of the present invention; In the diagram: 1. First housing; 2. Second housing; 3. Top cover; 4. Start button; 5. Charging port; 6. Indicator light; 7. Screen frame; 8. Mode button frame; 9. Start button frame; 10. Switch frame; 11. Lock; 12. Screen; 14. Mainboard; 15. Plug; 16. Connector; 17. Conduit connector; 18. Front housing; 19. Battery; 20. Solenoid valve; 21. Air pump; 22. Switch; 23. Pressure relief port; 24. Air inlet; 25. Mode button; 26. Connector; 27. Fixing component; 28. Air pressure detection port; 29. ​​Air pump exhaust port; 30. Protective ring; 31. Motor; 32. Connecting pipe; 33. Mechanical pressure relief valve; 34. Electronic pressure relief valve. Detailed Implementation

[0018] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0019] Existing pressure relief devices still have significant shortcomings: most lack proactive and precise pressure relief mechanisms, fail to establish effective dual protection systems for pressure safety thresholds, and rely solely on single pressure relief methods or passive pressure relief designs, making it difficult to cope with complex situations such as abnormal pressure increases or excessively rapid pressure rise rates. Furthermore, existing devices do not fully consider the pressure adaptation requirements of different usage scenarios, lack flexible and adjustable pressure control modes and protection designs, and cannot quickly initiate effective pressure relief operations when the pressure exceeds the safe range, leading to persistent abnormal pressure and unnecessary impacts on related structures. In addition, existing devices lack accuracy in pressure monitoring, making it difficult to accurately capture dynamic pressure changes and provide timely feedback adjustments, thus failing to achieve closed-loop pressure control and resulting in poor safety.

[0020] Example 1: The invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a eustachian tube inflator, such as... Figure 1 , Figure 4 and Figure 5 As shown, the device includes a housing, inside which a motor 31 is installed. One end of the motor 31 is equipped with an air pump 21, and one end of the air pump 21 is equipped with an air pump exhaust port 29. One side of the air pump 21 is equipped with an air inlet 24 and a pressure relief port 23. One end of the pressure relief port 23 is equipped with a connecting pipe 32, and one end of the connecting pipe 32 is equipped with an electronic pressure relief valve 34 and a mechanical pressure relief valve 33. The electronic pressure relief valve 34 and the mechanical pressure relief valve 33 are connected in parallel or in series. A fixing member 27 is provided at one end of the outer casing, a connector 16 is provided at one end of the fixing member 27, a plug 15 is provided at one end of the connector 16, the plug 15 is connected to the air pump exhaust port 29, and an air pressure detection port 28 is provided at one end of the air pump exhaust port 29; an air pressure detection device is provided on the plug 15, at the end of the plug 15, and at the connection port between the air pump exhaust port 29 and the lower end of the fixing member 27.

[0021] Specifically, the mechanical pressure relief valve 33 and the electronic pressure relief valve 34 are connected in series or parallel. The pressure detection port 28 at the air pump exhaust port 29 enables real-time pressure monitoring, achieving dual pressure relief protection and pressure monitoring. In series mode, the mechanical pressure relief valve 33 opens first when the pressure exceeds the preset standard. If the pressure continues to rise, the electronic pressure relief valve 34 starts simultaneously to assist in pressure relief. In parallel mode, the electronic pressure relief valve 34 responds to the pressure signal first and opens to relieve pressure. When the electronic pressure relief valve 34 malfunctions or the pressure rises too quickly to effectively relieve pressure, the mechanical pressure relief valve 33 starts as a backup to ensure that the pressure is always within a safe range. The pressure detection port 28 captures the dynamic changes in pressure within the air circuit and feeds the signal back to the main board 14 in real time. The main board 14 adjusts the working state of the motor 31 driving the air pump 21 through closed-loop control logic to achieve stable pressure control. At the same time, the equipment supports multiple operating modes, and the corresponding mode can be selected according to actual needs, making it highly adaptable.

[0022] More specifically, the air pressure detection device uses an air pressure sensor.

[0023] like Figure 2 and Figure 3 As shown, a protective ring 30 is fitted around the outer side of the outer shell. The outer shell includes a first shell 1 and a second shell 2. Several latches 11 are spaced apart on the first shell 1, which are used to lock the first shell 1 and the second shell 2 together. A mode button frame 8 is provided at one end of the first shell 1, and a mode button 25 is provided inside the mode button frame 8. A switch frame 10 is provided at one end of the mode button frame 8, and a switch 22 is provided inside the switch frame 10. A start button frame 9 is provided on the first shell 1, and a start button 4 is provided inside the start button frame 9. An indicator light 6 is provided at the lower end of the start button frame 9, and a charging port 5 is provided at the bottom of the shell.

[0024] Specifically, the housing of the Eustachian tube inflator is composed of a first housing 1 and a second housing 2. To achieve a stable assembly of the two, several latches 11 are provided at intervals along the edge of the first housing 1. During assembly, the first housing 1 and the second housing 2 are fitted together accordingly. The two housings are tightly connected by the locking structure of the latches 11 to form a complete equipment shell. A protective ring 30 is fitted on the outside of the shell to protect it.

[0025] A mode button frame 8 is provided at one end of the first housing 1. The size of the mode button frame 8 is adapted to the mode button 25. The mode button 25 is embedded in the mode button frame 8 and electrically connected to the main board 14 inside the housing, ensuring that the operation signal of the mode button 25 can be transmitted to the main board 14. A switch frame 10 is provided on the side of the mode button frame 8 near the end of the device. The switch frame 10 is fixedly set at the corresponding position of the first housing 1. The switch 22 is embedded in the switch frame 10 and is also electrically connected to the main board 14 to control the power supply of the device.

[0026] A start button frame 9 is provided on the front of the first housing 1. The position of the start button frame 9 is convenient for user operation. The start button 4 is installed inside the start button frame 9 and electrically connected to the main board 14 to realize the start control of the device. At the lower end of the start button frame 9, an indicator light 6 is provided along the edge of the first housing 1. The indicator light 6 is electrically connected to the main board 14 and is used to provide feedback on the power status, working mode, and operating status of the device. A charging port 5 is provided at the bottom of the housing. The charging port 5 is electrically connected to the battery 19 inside the housing to replenish the battery 19.

[0027] The outer casing is a front end shell 18. A conduit connector 17 is installed inside the front end shell 18. One end of the conduit connector 17 is connected to a connector 16, and the other end is connected to an air pump exhaust port 29. A top cover 3 is installed on the front end shell 18, and the top cover 3 snaps into the front end shell 18. A screen frame 7 is installed on one side of the front end shell 18, and a screen 12 is installed inside the screen frame 7. A connector 26 is installed at one end of the screen 12, and the connector 26 is connected to the main board 14. The main board 14 is located inside the casing. A battery 19 is installed at one end of the main board 14, and a solenoid valve 20 is installed at the lower end of the battery 19. Both the battery 19 and the solenoid valve 20 are electrically connected to the main board 14.

[0028] Specifically, the end of the outer shell is the front shell 18, which together with the first shell 1 and the second shell 2 constitutes a complete outer shell structure. A conduit connector 17 is fixedly installed inside the front shell 18. One end of the conduit connector 17 extends to the outside of the front shell 18 and is detachably connected to a connector 16. The end of the connector 16 away from the conduit connector 17 is fixedly connected to a plug 15, ensuring that airflow can be sequentially transmitted through the conduit connector 17 and the connector 16 to the plug 15. The other end of the conduit connector 17 faces the inside of the shell and is sealed to the air pump exhaust port 29 of the air pump 21, allowing the airflow generated by the air pump 21 to be delivered to subsequent channels through the conduit connector 17.

[0029] A top cover 3 is provided on the top of the front housing 18. The top cover 3 is detachably connected to the front housing 18 via a snap-fit ​​structure, facilitating subsequent inspection and maintenance of internal components. A screen frame 7 is provided on the side of the front housing 18 near the top cover 3. The shape of the screen frame 7 matches that of the screen 12, and the screen 12 is embedded in the screen frame 7. One end of the screen 12 is electrically connected to the motherboard 14 via a connector 26, enabling the motherboard 14 to transmit pressure data, mode information, etc., to the screen 12 for display. At the same time, the operation signals of the screen 12 can also be fed back to the motherboard 14.

[0030] The main board 14 is horizontally positioned within the internal space enclosed by the first housing 1 and the second housing 2. One end of the main board 14 is electrically connected to the battery 19 via a wire. The battery 19 provides power to the main board 14 and other electrical components of the device. A solenoid valve 20 is located at the lower end of the battery 19. The solenoid valve 20 is electrically connected to the main board 14 via a wire. The main board 14 controls the opening and closing of the solenoid valve 20, thereby regulating the on / off state of the air passage.

[0031] Example 2: A method for using a Eustachian tube inflator includes the following steps: Turn on switch 22, select the appropriate working mode using mode button 25. When switching modes, the current mode can be confirmed by indicator light 6. Different modes correspond to different pressure adaptation ranges. Confirm that the set pressure information and working mode displayed on screen 12 meet the usage requirements. Press the start button 4, and the motor 31 will drive the air pump 21 to start working. The equipment will carry out the pressurization process according to the selected mode, and the screen 12 will display the pressure change and pressure curve in real time. During operation, the pressure detection device at pressure detection port 28 continuously monitors the pressure status in the air circuit, captures pressure change signals, and feeds them back to the main board 14 in real time. A series or parallel connection of mechanical pressure relief valve 33 and electronic pressure relief valve 34 is used, which automatically start or stop according to preset logic to always maintain the pressure within a safe range.

[0032] In series mode, when the pressure exceeds the preset standard of the mechanical pressure relief valve 33, the mechanical pressure relief valve 33 will open first to relieve pressure; if the pressure is not effectively controlled, it will continue to rise to the preset standard of the electronic pressure relief valve 34, and the electronic pressure relief valve 34 will then start to complete the pressure relief operation in coordination. In parallel mode, the electronic pressure relief valve 34 releases pressure first. When the pressure reaches its preset standard, it immediately starts to release pressure. If the electronic pressure relief valve 34 malfunctions and fails to respond normally, or if the pressure rises too quickly, the electronic pressure relief valve 34 cannot effectively suppress the pressure rise after opening. When the pressure reaches the preset standard of the mechanical pressure relief valve 33, the mechanical pressure relief valve 33 will be activated as a backup.

[0033] During operation, if an abnormal pressure drop signal is detected, the main board 14 will quickly identify it and issue a command to control the air pump 21 to stop pressurizing; when the pressure is lower than the set standard, the main board 14 will command the air pump 21 to resume operation and maintain a stable pressurization state.

[0034] Specifically, plug 15 is inserted into the nostril to inflate the Eustachian tube. Air pump 21 has an air inlet 24 and a pressure relief port 23, which is connected to a mechanical pressure relief valve 33. After turning on the power switch 22 and pressing the start button 4, motor 31 starts and drives air pump 21, and air pump exhaust port 29 begins to output gas. After the equipment has been operating for a period of time, if the internal pressure exceeds the preset pressure value, the mechanical pressure relief valve 33 will automatically open to release pressure; if the pressure drops below the set value, the equipment will maintain the set pressure and continue operating.

[0035] When the mechanical pressure relief valve 33 and the electronic pressure relief valve 34 are connected in series, if the pressure exceeds the set value of the mechanical pressure relief valve 33, the mechanical pressure relief valve 33 will open first. If the pressure has not yet reached the set value of the electronic pressure relief valve 34, the electronic pressure relief valve 34 will not start. If the pressure continues to rise to the set value of the electronic pressure relief valve 34, the electronic pressure relief valve 34 will then start to release pressure. When the two are connected in parallel, the starting pressure value of the electronic pressure relief valve 34 is lower than the set value of the mechanical pressure relief valve 33. When the pressure reaches the set value of the electronic pressure relief valve 34, the electronic pressure relief valve 34 will start to release pressure first. If the electronic pressure relief valve 34 fails to start normally and the pressure exceeds the set value of the mechanical pressure relief valve 33, the mechanical pressure relief valve 33 will start to release pressure. Through the above settings, the start and stop of pressure relief can be precisely controlled within a fixed pressure range.

[0036] The equipment can perform pressurization and inflation operations by setting a time interval, for example, pressurizing for a period of time, stopping pressurization, and then pressurizing again after a 3-second interval.

[0037] A filter is installed at the air inlet 24 of the air pump 21. The filter contains a high-density filter screen, an activated carbon layer, and a carbon membrane. The high-density filter screen intercepts large particulate pollutants (>5μm), the activated carbon layer adsorbs volatile organic compounds (VOCs) and odors, and the carbon membrane further purifies microorganisms and ultrafine particles (<1μm), thereby controlling the air quality entering the air path and ensuring clean air.

[0038] Users can adjust the working pressure range using the mode button 25. After pressing the power switch 22, press the start button 4 to start the air pump 21 and begin pressurizing. When the pressure reaches the set maximum pressure value, the main board 14 transmits a control signal to the motor 31, and the air pump 21 stops working. Alternatively, the clock processor of the main board 14 controls the air pump 21 to work according to the set pressure value and working time. After the working time ends, the air pump 21 stops working. The air pump 21 also supports an intermittent working mode.

[0039] The air pump exhaust port 29 is connected in parallel with the air pressure detection device, and the pressure peak value is preset. After pressing the start button 4, the air pump 21 starts to work. When the air pressure detection device detects that the pressure has reached the set peak value, it transmits a stop signal to the main board 14. The main board 14 then issues a command to control the air pump 21 to stop working.

[0040] The mainboard 14 is connected to the screen 12, which can display the set pressure value and pressure curve in real time. When the device inflates the Eustachian tube, if the Eustachian tube opens, the pressure in the pressure tube will be released instantly and a pressure drop will occur. The pressure curve on the screen 12 will display this drop signal simultaneously. After the mainboard 14 collects this signal, it determines that the Eustachian tube has opened and then transmits a control signal to the air pump 21 to stop the pressurization operation, thus completing one Eustachian tube opening process.

[0041] To protect the Eustachian tube, the main board 14 is connected to the electronic pressure relief valve 34, which is connected to the pressure relief port 23 of the air pump 21. After presetting the pressure value according to the usage scenario, the air pressure detection device is installed in the air pump exhaust port 29 or related air circuit. When the Eustachian tube opens, the air pressure detection device captures the pressure drop signal, and the curve on the screen 12 will display the corresponding trough signal. The main board 14 then transmits a start signal to the electronic pressure relief valve 34, and the electronic pressure relief valve 34 opens to release pressure. When the pressure drops below the set value, the electronic pressure relief valve 34 closes. The above actions are executed cyclically to keep the pressure curve displayed on the screen 12 at a stable level.

[0042] Users can turn off the Eustachian tube inflator via power switch 22 according to their own comfort. To ensure safe operation, a mechanical pressure relief valve 33 is added in parallel or series connection to the electronic pressure relief valve 34: In parallel connection, the corresponding mechanical pressure relief valve 33 is matched according to the maximum pressure tolerance of the Eustachian tube for different user groups. If the electronic pressure relief valve 34 malfunctions and the pressure exceeds the set value of the mechanical pressure relief valve 33, the mechanical pressure relief valve 33 will open automatically; In series connection, a pressure detection device is added between the mechanical pressure relief valve 33 and the electronic pressure relief valve 34. When the mechanical pressure relief valve 33 opens automatically, the pressure detection device captures the signal, and the main board 14 activates the electronic pressure relief valve 34 to release pressure in coordination according to the preset pressure value. The dual pressure detection device can obtain pressure data more promptly, improving safety during use.

[0043] Power switch 22 is the main power control switch for the entire device; mode button 25 is used by the user to adjust the pressure value range (adapting to the Eustachian tube opening pressure requirements of the 36kP electronic pressure relief valve for children and the 42kP electronic pressure relief valve for adults); after the start button 4 is pressed, the main board 14 will control the air pump 21, air pressure detection device, electronic pressure relief valve 34 and other components to work together to realize the start and stop control of air pump 21 and electronic pressure relief valve 34.

[0044] There are differences in the opening pressure and pressure tolerance of the Eustachian tube between children and adults. Children require a 36kP electronic pressure relief valve to actively open their Eustachian tubes when they are closed, while adults require a 42kP electronic pressure relief valve. Therefore, the device is equipped with two corresponding pressure settings and different specifications of mechanical pressure relief valves 33. The opening pressure of the mechanical pressure relief valve 33 can be selected from 30kP, 40kP, and 50kP electronic pressure relief valves to meet the needs of different user groups.

[0045] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A eustachian tube inflator, characterized in that, The device includes a housing, within which a motor is installed. An air pump is installed at one end of the motor, and an air pump exhaust port is installed at one end of the air pump. An air inlet and a pressure relief port are installed on one side of the air pump. A connecting pipe is installed at one end of the pressure relief port, and an electronic pressure relief valve and a mechanical pressure relief valve are installed at one end of the connecting pipe. The electronic pressure relief valve and the mechanical pressure relief valve are connected in parallel or in series. A fixing member is provided at one end of the outer shell, a connector is provided at one end of the fixing member, a plug is provided at one end of the connector, the plug is connected to the air pump exhaust port, and an air pressure detection port is provided at one end of the air pump exhaust port; an air pressure detection device is provided on the plug, at the end of the plug, and at the connection port between the air pump exhaust port and the lower end of the fixing member.

2. The eustachian tube inflator as described in claim 1, characterized in that, A protective ring is fitted on the outer side of the outer shell. The outer shell includes a first shell and a second shell. Several latches are spaced apart on the first shell to lock the first shell and the second shell together. A mode button frame is provided at one end of the first shell, and a mode button is provided inside the mode button frame.

3. The eustachian tube inflator as described in claim 2, characterized in that, One end of the button mode frame is provided with a switch frame, which is mounted on the housing and contains a switch; a start button frame is provided on the first housing and contains a start button; an indicator light is provided at the lower end of the start button frame and a charging port is provided at the bottom of the housing.

4. The eustachian tube inflator as described in claim 1, characterized in that, The end of the outer shell is a front shell, and a conduit connector is provided inside the front shell. One end of the conduit connector is connected to the connector head, and the other end of the conduit connector is connected to the exhaust port of the air pump.

5. The eustachian tube inflator as described in claim 4, characterized in that, The front end shell is provided with a top cover, which is snapped into the front end cover. A screen frame is provided on one side of the front end cover, and a screen is installed inside the screen frame. A connector is provided at one end of the screen and is connected to the motherboard.

6. The eustachian tube inflator as described in claim 5, characterized in that, The motherboard is housed inside the casing. A battery is installed at one end of the motherboard, and a solenoid valve is installed at the lower end of the battery. Both the battery and the solenoid valve are electrically connected to the motherboard.

7. The method of using a eustachian tube inflator as described in any one of claims 1-6, characterized in that, Includes the following steps: Turn on the switch and select the appropriate working mode using the mode button. The indicator light will show the current mode when switching modes. Different modes correspond to different pressure ranges. Confirm that the set pressure information and working mode displayed on the screen meet your needs. Press the start button, and the motor will drive the air pump to start working. The equipment will carry out the pressurization process according to the selected mode, and the screen will display the pressure changes and pressure curve in real time. During operation, the air pressure detection device continuously monitors the pressure status in the air circuit, captures pressure change signals and feeds them back to the main board in real time; it adopts a series or parallel setting of mechanical pressure relief valve and electronic pressure relief valve, which automatically starts or closes according to preset logic, always keeping the pressure within a safe range.

8. The method of using a eustachian tube inflator as described in claim 7, characterized in that, In series mode, when the pressure exceeds the preset standard of the mechanical pressure relief valve, the mechanical pressure relief valve opens first to relieve pressure; if the pressure is not effectively controlled and continues to rise to the preset standard of the electronic pressure relief valve, the electronic pressure relief valve will then start to complete the pressure relief operation in conjunction with the pressure relief valve.

9. The method of using a eustachian tube inflator as described in claim 7, characterized in that, In parallel mode, the electronic pressure relief valve releases pressure first. When the pressure reaches its preset standard, it immediately starts to release pressure. If the electronic pressure relief valve malfunctions and fails to respond normally, or if the pressure rises too quickly and the electronic pressure relief valve cannot effectively suppress the pressure rise after opening, the mechanical pressure relief valve will start as a backup when the pressure reaches its preset standard.

10. The method of using a eustachian tube inflator as described in claim 7, characterized in that, During operation, if an abnormal pressure drop signal is detected, the motherboard will quickly identify it and issue a command to control the air pump to stop pressurizing; when the pressure is lower than the set standard, the motherboard will command the air pump to resume operation and maintain a stable pressurization state.

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