Visual ear suction device

Abstract

The present invention discloses a visual ear aspirator, which relates to the technical field of medical devices and personal care equipment, and is used to solve the problem, including a pressure sensor module, a control unit, a water pump assembly and a nozzle assembly. The pressure sensor module collects the pressure distribution data of the inner wall of the ear canal through a flexible contact array, and transmits the data to the control unit after signal processing. The control unit calculates the optimal water flow pressure value and adjusts the water pump output to achieve precise adaptation to different ear canal characteristics. This method has a high degree of automation and solves the problem of poor cleaning effect or discomfort caused by fixed water pressure of traditional ear aspirators. At the same time, it avoids the complexity of manual operation and the risk of misoperation, and improves personalized service capabilities and safety of use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments and personal care equipment, and more particularly to a visual ear suction device. Background Art

[0002] With the continuous development of ear canal cleaning technology, ear aspirators have gradually become an important tool in ENT care due to their convenience and efficiency. However, existing ear aspirators have certain limitations in water pressure regulation. In particular, when it comes to personalized cleaning for different ear canal characteristics, automated and precise water pressure control has not yet been fully achieved, which to some extent affects the cleaning effect and user experience.

[0003] The existing technology has the following deficiencies:

[0004] Currently, it's difficult for ear aspirators to dynamically adjust water pressure based on individual ear canal structures and cleaning needs. This can affect cleaning effectiveness and cause discomfort or even damage to the ear canal. These devices can't meet diverse cleaning needs, and fixed cleaning water pressure can cause irritation, reducing user experience, especially for sensitive ear canals. Therefore, a visual ear aspirator has been proposed.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a visual ear suction device, which optimizes the cleaning effect, improves user comfort, and reduces safety risks caused by improper operation by adjusting the water flow pressure in real time according to the specific characteristics of the ear canal to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a visual ear suction device, comprising a pressure sensor module configured to detect pressure changes inside the ear canal;

[0008] a control unit connected to the pressure sensor module and configured to receive data collected by the pressure sensor module and calculate a water flow pressure value based on the data;

[0009] a water pump assembly electrically connected to the control unit and configured to adjust the water flow pressure according to the pressure value output by the control unit;

[0010] The nozzle assembly is connected to the water pump assembly and is configured to spray the adjusted water flow into the ear canal.

[0011] In a preferred embodiment, the pressure sensor module at least includes:

[0012] a flexible contact array mounted on an outer wall of the nozzle assembly and configured to obtain real-time pressure distribution data by contacting an inner wall of the ear canal;

[0013] The signal processing unit is electrically connected to the flexible contact array and is configured to filter and amplify the data collected by the flexible contact array and then transmit the data to the control unit.

[0014] In a preferred embodiment, the flexible contact array includes a plurality of micro pressure sensors, each of which is connected to the signal processing unit via a wire, and the surface of the flexible contact array is covered with a medical-grade silicone layer, and the thickness of the silicone layer is within a preset range.

[0015] In a preferred embodiment, a feedback module is included, which is electrically connected to the control unit and the water pump assembly, and is configured to monitor the actual output pressure of the water pump assembly, compare the difference between the actual output pressure and the target pressure value, and feed back the difference information to the control unit.

[0016] In a preferred embodiment, the nozzle assembly includes a porous nozzle and a rotating mechanism. The porous nozzle is installed at the front end of the nozzle assembly and is configured to disperse the impact force of the water flow through multiple nozzle holes. The rotating mechanism is installed at the base of the nozzle assembly and is configured to drive the porous nozzle to rotate around its central axis.

[0017] In a preferred embodiment, the aperture of the porous nozzle is within a preset range, the hole spacing is within a preset range, the rotation angle range of the rotating mechanism is within a preset range, and the rotation speed is within a preset range.

[0018] In a preferred embodiment, the water pump assembly includes a variable frequency motor and an impeller device, the variable frequency motor is electrically connected to the control unit, the impeller device is installed on the output shaft of the variable frequency motor and is connected to the water flow channel, and the speed range of the variable frequency motor is between a preset range.

[0019] In a preferred embodiment, the method comprises the following steps:

[0020] Wearing the nozzle assembly and inserting the nozzle assembly into the ear canal of the user;

[0021] The flexible contact array contacts the inner wall of the ear canal, collects pressure distribution data of the inner wall of the ear canal and transmits the data to the signal processing unit;

[0022] The signal processing unit filters and amplifies the received data and transmits it to the control unit;

[0023] The control unit receives the processed data, matches the ear canal characteristic model in the storage module and calculates the target water flow pressure value;

[0024] The control unit sends an instruction to the water pump assembly, and the water pump assembly adjusts the water flow pressure according to the instruction;

[0025] The nozzle assembly sprays the adjusted water flow into the ear canal to complete the cleaning operation.

[0026] In a preferred embodiment, the step further includes monitoring the actual output pressure of the water pump assembly through a feedback module, comparing the difference between the actual output pressure and the target pressure value, and feeding back the difference information to the control unit for real-time correction.

[0027] The technical effects and advantages of the present invention are as follows:

[0028] 1. The present invention comprises a pressure sensor module, a control unit, a water pump assembly, and a nozzle assembly. The pressure sensor module collects pressure distribution data on the inner wall of the ear canal via a flexible contact array, transmits the processed signal to the control unit, and the control unit calculates the optimal water flow pressure value and adjusts the water pump output to achieve precise adaptation to different ear canal characteristics. This method has a high degree of automation and solves the problem of poor cleaning effect or discomfort caused by fixed water pressure in traditional ear aspirators. It also avoids the complexity and risk of misoperation caused by manual operation, improving personalized service capabilities and user safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a flow chart of the device of the visual ear suction device of the present invention.

[0030] Figure 2 This is a diagram of the pressure sensor module of the visual ear suction device of the present invention.

[0031] Figure 3 This is a diagram of the control unit of the visual ear suction device of the present invention.

[0032] Figure 4 This is a diagram of the water pump assembly of the visual ear suction device of the present invention.

[0033] Figure 5 This is a diagram of the nozzle assembly of the visual ear suction device of the present invention.

[0034] Figure 6 This is a device operation diagram of the visual ear suction device of the present invention. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0036] See also Figures 1 to 2 , visual ear suction device, the specific operation process is as follows:

[0037] The system includes a pressure sensor module, a control unit, a water pump assembly, and a nozzle assembly. These modules work together through electrical or fluidic connections. The pressure sensor module detects pressure changes inside the ear canal. The control unit receives and processes the data and then outputs instructions. The water pump assembly adjusts the water pressure based on the instructions, and the nozzle assembly sprays the adjusted water flow into the ear canal.

[0038] The core components of the pressure sensor module are the flexible contact array and the signal processing unit. The flexible contact array is installed on the outer wall of the nozzle assembly, and the contact surface with the nozzle assembly is embedded. Metal contacts are provided at the bottom of the flexible contact array, and the metal contacts are fixed to the outer wall of the nozzle assembly by welding. The top of the flexible contact array is flush with the outer wall of the nozzle assembly. The flexible contact array consists of a plurality of micro pressure sensors, and each micro pressure sensor is connected to the signal processing unit via a wire. The surface of the flexible contact array is covered with a medical-grade silicone layer with a thickness of between 0.5mm and 1mm. The design of the silicone layer enables the flexible contact array to form a good fit with the inner wall of the ear canal while reducing irritation to the inner wall of the ear canal. The signal processing unit is located at the rear end of the flexible contact array and is connected to the flexible contact array via a wire. The signal processing unit filters and amplifies the collected pressure distribution data and transmits it to the control unit.

[0039] The control unit includes a microprocessor and a storage module. The microprocessor is connected to the signal processing unit, the feedback module and the water pump assembly through wires. The storage module pre-stores multiple sets of ear canal characteristic models and their corresponding target pressure value ranges. The function of the microprocessor is to receive the pressure distribution data transmitted by the signal processing unit, match the ear canal characteristic model in the storage module, and calculate the optimal water flow pressure value under the current ear canal conditions. The control unit uses an algorithm to quickly identify and adapt the ear canal characteristics to ensure precise regulation of the water flow pressure. The feedback module is connected to the control unit and the water pump assembly through wires. The feedback module monitors the actual output pressure of the water pump assembly, compares the difference between the actual output pressure and the target pressure value, and feeds back the difference information to the control unit for real-time correction.

[0040] The water pump assembly consists of a variable-frequency motor and an impeller. The motor is connected to the control unit via wires. The impeller is mounted on the motor's output shaft and communicates with the water flow channel. The motor's speed range is between 1000 and 3000 rpm. The impeller's speed changes with the motor's speed, thereby varying the water pressure. The pump assembly dynamically adjusts the impeller's speed based on the control unit's instructions to achieve precise control of the water pressure.

[0041] The nozzle assembly includes a porous nozzle and a rotating mechanism. The porous nozzle is installed at the front end of the nozzle assembly, and the rotating mechanism is installed on the base of the nozzle assembly. The porous nozzle disperses the impact force of the water flow through multiple nozzle holes. The aperture of the nozzle hole is between 0.2mm and 0.5mm, and the hole spacing is between 1mm and 2mm. The layout design of the nozzle holes enables the water flow to reduce the local impact on the inner wall of the ear canal while ensuring the intensity. The rotating mechanism drives the porous nozzle to rotate around its central axis. The rotation angle range is 0 degrees to 360 degrees, and the rotation speed is between 10 and 30 circles per minute. The rotating mechanism is connected to the drive motor through a gear transmission, and the drive motor is connected to the control unit through a wire. The control unit adjusts the rotation speed and angle of the rotating mechanism according to the ear canal characteristic model to expand the cleaning range and improve the cleaning efficiency.

[0042] The system operates as follows: First, the user inserts the nozzle assembly into the ear canal. The flexible contact array contacts the inner wall of the ear canal and collects pressure distribution data. The micropressure sensors in the flexible contact array transmit the data via wires to the signal processing unit, which filters and amplifies the received data before transmitting it to the control unit. The microprocessor in the control unit receives the processed data, matches it to the ear canal characteristic model stored in the storage module, and calculates the target water flow pressure. The microprocessor then sends instructions to the water pump assembly, which adjusts the water flow pressure accordingly. A feedback module monitors the actual output pressure of the water pump assembly, compares the difference with the target pressure, and feeds this information back to the control unit for real-time correction. The variable-frequency motor in the water pump assembly adjusts the speed of the impeller assembly according to the control unit's instructions, thereby varying the water flow pressure. The multi-hole nozzle in the nozzle assembly sprays the adjusted water flow into the ear canal. A rotation mechanism drives the nozzle around its central axis, expanding the cleaning range and improving cleaning efficiency.

[0043] The flexible contact array is installed in an embedded manner. Metal contacts are provided at the bottom of the flexible contact array, which are fixed to the outer wall of the nozzle assembly by welding. The top of the flexible contact array is flush with the outer wall of the nozzle assembly. The embedded installation method improves the stability of the flexible contact array, reduces its wear during use, and extends its service life. The surface of the flexible contact array is covered with a medical-grade silicone layer with a thickness of between 0.5mm and 1mm. The design of the silicone layer improves the fit between the flexible contact array and the inner wall of the ear canal and reduces irritation to the inner wall of the ear canal. The flexible contact array can fully cover the outer wall of the nozzle assembly, forming a uniform pressure distribution detection network when the nozzle assembly enters the ear canal, ensuring the comprehensiveness and accuracy of data collection.

[0044] The aperture of the porous nozzle is between 0.2mm and 0.5mm, and the hole spacing is between 1mm and 2mm. The layout design of the nozzle enables the water flow to reduce the local impact on the inner wall of the ear canal while ensuring strength. The rotating mechanism is connected to the drive motor through a gear transmission, and the drive motor is connected to the control unit through a wire. The control unit adjusts the rotation speed and angle of the rotating mechanism according to the ear canal characteristic model to expand the cleaning range and improve the cleaning efficiency. The rotation angle range of the rotating mechanism is 0 degrees to 360 degrees, and the rotation speed is between 10 and 30 circles per minute. The design of the rotating mechanism effectively alleviates the direct impact of the water flow on the ear canal, while expanding the cleaning range and improving the cleaning efficiency through rotation.

[0045] The variable frequency motor in the water pump assembly is connected to the control unit via a wire, and the impeller device is installed on the output shaft of the variable frequency motor and is connected to the water flow channel. The speed range of the variable frequency motor is between 1000rpm and 3000rpm. The speed of the impeller device changes with the speed of the variable frequency motor, thereby changing the water flow pressure. The water pump assembly uses variable frequency technology to achieve precise control of water flow pressure, meeting the cleaning needs under different ear canal conditions. The feedback module is connected to the control unit and the water pump assembly via a wire. The feedback module monitors the actual output pressure of the water pump assembly, compares the difference between the actual output pressure and the target pressure value, and feeds back the difference information to the control unit for real-time correction. The design of the feedback module enables the system to continuously optimize the water flow pressure output during operation, further improving the adjustment accuracy.

[0046] In a specific embodiment of the present invention, the positional relationship and connection relationship of all components are rationally designed to ensure that the system can operate efficiently and stably. The embedded installation method of the flexible contact array and the nozzle assembly improves the durability of the system, the connection between the signal processing unit and the control unit ensures the accuracy of data processing, the fluid communication between the water pump assembly and the nozzle assembly enables precise adjustment of the water flow pressure, and the coordinated design of the rotating mechanism and the porous nozzle expands the cleaning range and improves the cleaning efficiency. The coordinated work of the above modules enables the system to automatically adjust the water flow pressure according to the characteristics of the ear canal, solving the problem of poor cleaning effect or discomfort to the ear canal caused by fixed water pressure of traditional ear suction devices, while avoiding the complexity of manual operation and the risk of misoperation.

[0047] In order to better enable relevant personnel in this technical field to fully understand and implement the present invention, the implementation principle of the present invention is supplemented below with reference to specific application scenarios.

[0048] When using this ear suction device, the user first inserts the nozzle assembly into the ear canal. At this time, the flexible contact array contacts the inner wall of the ear canal, and the multiple micro pressure sensors in the flexible contact array are fitted with the inner wall of the ear canal through the medical-grade silicone layer covering its surface. Since the thickness of the silicone layer is designed to be between 0.5mm and 1mm, this thickness can ensure that the flexible contact array is sensitive to pressure changes on the inner wall of the ear canal, and can reduce irritation that may be caused by direct contact. Each micro pressure sensor in the flexible contact array independently collects pressure distribution data on the inner wall of the ear canal, and transmits the data to the signal processing unit through a wire. The signal processing unit filters and amplifies the received data to remove noise interference and enhance signal strength, and then transmits the processed data to the control unit.

[0049] After receiving the pressure distribution data from the signal processing unit, the microprocessor in the control unit matches it with multiple sets of ear canal feature models pre-stored in the storage module. The matching process is implemented through an algorithm that comprehensively considers factors such as the geometric shape of the ear canal, pressure distribution characteristics, and cleaning requirements. Based on the matching results, the microprocessor calculates the optimal water flow pressure value under the current ear canal conditions and sends instructions to the water pump assembly. After receiving the instructions, the variable frequency motor in the water pump assembly adjusts the speed of the impeller device to change the water flow pressure. The speed range of the variable frequency motor is between 1000rpm and 3000rpm. The speed of the impeller device changes with the speed of the variable frequency motor, thereby achieving precise adjustment of the water flow pressure.

[0050] At the same time, the feedback module monitors the actual output pressure of the water pump assembly in real time and compares it with the target pressure value. If there is a discrepancy between the actual output pressure and the target pressure value, the feedback module feeds this information back to the control unit, which then makes real-time corrections to the water pump assembly based on this feedback information to ensure that the water flow pressure remains within the target range. This closed-loop control mechanism significantly improves the system's regulation accuracy and stability.

[0051] When the water pressure is adjusted, the porous nozzle in the nozzle assembly sprays water into the ear canal. The design feature of the porous nozzle is that the aperture of the nozzle is between 0.2mm and 0.5mm, and the hole spacing is between 1mm and 2mm. This layout can reduce the local impact on the inner wall of the ear canal while ensuring the intensity of the water flow. In addition, the rotating mechanism drives the porous nozzle to rotate around its central axis through gear transmission. The rotation angle range is 0 degrees to 360 degrees, and the rotation speed is between 10 and 30 circles per minute. The operation of the rotating mechanism is adjusted by the control unit according to the ear canal characteristic model to expand the cleaning range and improve the cleaning efficiency. The rotational motion not only alleviates the direct impact of the water flow on the ear canal, but also enables the water flow to cover a wider area, thereby improving the cleaning effect.

[0052] Throughout the cleaning process, the flexible contact array continuously collects pressure distribution data from the inner wall of the ear canal and updates it to the control unit in real time. This dynamic monitoring mechanism enables the system to adjust the water flow pressure in a timely manner based on changes in the inner wall of the ear canal, ensuring the safety and comfort of the cleaning process. For example, when a localized sensitive area appears on the inner wall of the ear canal, the flexible contact array can quickly sense the pressure change and transmit the data to the control unit. The control unit then calculates the new target water flow pressure value and adjusts the output pressure of the water pump assembly to avoid discomfort or damage to the sensitive area.

[0053] Furthermore, the embedded mounting of the flexible contact array further enhances the system's durability and stability. Metal contacts are located at the bottom of the flexible contact array, welded to the outer wall of the nozzle assembly, with the top flush with the outer wall. This mounting method reduces wear and tear on the flexible contact array during use, extending its service life. Furthermore, the full coverage design of the flexible contact array ensures a uniform pressure distribution detection network when the nozzle assembly enters the ear canal, thereby ensuring comprehensive and accurate data collection.

[0054] In summary, the present invention uses a flexible contact array to sense the pressure distribution on the inner wall of the ear canal in real time. This data is then optimized and processed by a signal processing unit and then fed into a control unit. The control unit then dynamically adjusts the output pressure of the water pump assembly based on the received data, ultimately achieving precise cleaning through the nozzle assembly. This entire process is automated, avoiding the complexity and risk of manual adjustments, while significantly improving cleaning effectiveness and user experience.

[0055] The above formulas are all dimensionless and numerical calculations. The formulas are obtained by collecting a large amount of data and performing software simulation to obtain the most recent real situation. The preset parameters in the formulas are set by technicians in this field according to actual conditions.

[0056] The above embodiments can be implemented in whole or in part through software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains a collection of one or more available media. The available medium can be a magnetic medium (e.g., a floppy disk, hard disk, or tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0057] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0058] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0059] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0061] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0062] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0063] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program codes.

[0064] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. Visual ear suction device, characterized by: include: a pressure sensor module configured to detect pressure changes inside the ear canal; a control unit connected to the pressure sensor module and configured to receive data collected by the pressure sensor module and calculate a water flow pressure value based on the data; a water pump assembly electrically connected to the control unit and configured to adjust the water flow pressure according to the pressure value output by the control unit; a spray head assembly, in communication with the water pump assembly and configured to spray the adjusted water flow into the ear canal; The following steps are involved: Wearing the nozzle assembly and inserting the nozzle assembly into the ear canal of the user; The storage module pre-stores multiple sets of ear canal characteristic models and their corresponding target pressure value ranges; The flexible contact array contacts the inner wall of the ear canal, collects pressure distribution data of the inner wall of the ear canal and transmits the data to the signal processing unit; The signal processing unit filters and amplifies the received data and transmits it to the control unit; The control unit receives the processed data, matches the ear canal characteristic model in the storage module and calculates the target water flow pressure value; The matching process is achieved through an algorithm that takes into account factors such as the geometry of the ear canal, pressure distribution characteristics, and cleaning needs; The control unit sends an instruction to the water pump assembly, and the water pump assembly adjusts the water flow pressure according to the instruction; The nozzle assembly sprays the adjusted water flow into the ear canal to complete the cleaning operation; The steps also include monitoring the actual output pressure of the water pump assembly through a feedback module, comparing the difference between the actual output pressure and the target pressure value, and feeding back the difference information to the control unit for real-time correction.

2. The visual ear suction device according to claim 1, characterized in that: The pressure sensor module at least includes: a flexible contact array mounted on an outer wall of the nozzle assembly and configured to obtain real-time pressure distribution data by contacting an inner wall of the ear canal; The signal processing unit is electrically connected to the flexible contact array and is configured to filter and amplify the data collected by the flexible contact array and then transmit the data to the control unit.

3. The visual ear suction device according to claim 2, characterized in that: The flexible contact array includes a plurality of micro pressure sensors, each of which is connected to the signal processing unit via a wire. The surface of the flexible contact array is covered with a medical-grade silicone layer, and the thickness of the silicone layer is within a preset range.

4. The visual ear suction device according to claim 1, characterized in that: A feedback module is included, which is electrically connected to the control unit and the water pump assembly and is configured to monitor the actual output pressure of the water pump assembly, compare the difference between the actual output pressure and the target pressure value, and feed back the difference information to the control unit.

5. The visual ear suction device according to claim 1, characterized in that: The nozzle assembly includes a porous nozzle and a rotating mechanism. The porous nozzle is installed at the front end of the nozzle assembly and is configured to disperse the impact force of the water flow through multiple nozzle holes. The rotating mechanism is installed at the base of the nozzle assembly and is configured to drive the porous nozzle to rotate around its central axis.

6. The visual ear suction device according to claim 5, characterized in that: The aperture of the porous nozzle is within a preset range, the hole spacing is within a preset range, the rotation angle range of the rotating mechanism is within a preset range, and the rotation speed is within a preset range.

7. The visual ear suction device according to claim 6, characterized in that: The water pump assembly includes a variable frequency motor and an impeller device. The variable frequency motor is electrically connected to the control unit. The impeller device is installed on the output shaft of the variable frequency motor and communicates with the water flow channel. The speed range of the variable frequency motor is within a preset range.

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