An ai flexible adaptive oral bausch standardization cleaning device

Abstract

The application discloses an AI flexible self-adaptive oral cavity barthel standardization cleaning device and belongs to the field of intelligent oral cavity nursing equipment.The device comprises a host body, a detachable flexible brush head assembly, a main control module, an integrated sensor array and a power supply module; the flexible brush head is provided with a multi-degree-of-freedom flexible universal joint made of a shape memory alloy material, can actively adjust the brush head posture to 45 DEG + 2 DEG barthel standard angle, and is integrated with a high-precision three-dimensional force sensor, a posture gyroscope and a plaque fluorescence sensor.The core hardware architecture of the application is independent and complete, and can selectively expand a double-bin fluid supply, waste liquid suction, brush head identification, image acquisition and a wireless communication module.The scheme solves the defects that a traditional electric toothbrush cannot actively adjust the posture and the sensing dimension is single, the angle deviation rate is reduced to 5% or below, the cleaning effect is improved by more than 40%, a general hardware carrier is provided for standardization barthel self-adaptive cleaning control, a modular structure is flexibly adapted to products of different gears, the structure is compact, and mass production is easy.

Description

Technical Field

[0001] This invention belongs to the field of intelligent oral care equipment technology, and specifically relates to an AI flexible adaptive oral Bass standard cleaning device equipped with a multimodal sensing system and a multi-degree-of-freedom flexible actuator, which can actively maintain the standard angle of the modified Bass brushing technique. It is suitable for personal daily oral care and auxiliary prevention and treatment of periodontal diseases. Background Technology

[0002] The modified Bass brushing technique is a standard cleaning method recognized in periodontal medicine. Proper operation requires the brush bristles to be held at a 45°±5° angle to the gingival sulcus, accompanied by small, horizontal, vibrating brushing motions with an amplitude not exceeding 2mm. Simultaneously, the contact pressure needs to be controlled within the range of 0.1N-0.3N, depending on the different health conditions of the teeth. Traditional electric toothbrushes have a rigid connection between the brush head and the main unit, making it impossible for the brush head to adjust its spatial posture to maintain the Bass brushing angle independently. The angle deviation rate for manual operation reaches 37%-58%. Conventional products use a single sensor, only collecting pressure or vibration signals, making it difficult to simultaneously collect pressure, posture, and plaque information, thus failing to achieve closed-loop control.

[0003] Existing hardware solutions of this type generally suffer from the following insurmountable technical shortcomings: ① lack of a flexible actuation structure capable of active posture adjustment, making it impossible to dynamically maintain the standard Papanicolaou angle; ② inability to integrate multi-dimensional sensing elements, resulting in independent and uncoordinated sensing data; ③ some solutions have a single fluid structure, providing only a single liquid, failing to achieve precise proportioning of multiple care liquids, and lacking a waste liquid recovery structure, leading to liquid residue in the oral cavity; ④ a rigid hardware architecture, making it difficult to expand functional modules. This invention, based on a flexible posture-adjusting brush head, integrates a multi-modal sensing array, creating an integrated hardware architecture adaptable to standardized Papanicolaou cleaning operations. Summary of the Invention

[0004] 3.1 Purpose of the Invention The brush head is equipped with a multi-degree-of-freedom flexible connection and execution structure, which enables the brush head to actively adjust its spatial posture and maintain a stable 45°±2° Bass brushing standard angle, reducing the angle deviation rate to within 5%. It achieves integrated arrangement of three-dimensional force sensing, attitude sensing and plaque optical sensing, and synchronously collects contact pressure (accuracy ±0.01N), brush head attitude (accuracy ±0.5°) and tooth surface plaque information (detection sensitivity ≥90%), providing complete data support for closed-loop control; A fluid structure capable of supplying various liquid ratios is constructed, supporting mixing at any ratio from 0-100%, and equipped with a negative pressure waste liquid recovery channel, with a waste liquid recovery rate of ≥95%; The hardware has a reserved standardized expansion interface, which can be selectively integrated with brush head recognition, tooth row image acquisition and human-computer interaction expansion modules to adapt to different product positioning. The overall structure is miniaturized (main unit diameter ≤35mm, length ≤180mm), adaptable to the narrow space of the oral cavity, and the modular structure facilitates production assembly and component replacement, reducing manufacturing costs by more than 30%.

[0005] 3.2 Technical Solution An AI-powered flexible adaptive Papanicolaou cleaning device includes a main unit, a detachable flexible brush head assembly, a main control module, a sensor array module, and a power supply module. The detachable flexible brush head assembly includes a bristle substrate, a multi-degree-of-freedom flexible universal joint, and a drive unit. The drive unit uses a micro piezoelectric ceramic motor to drive the bristle substrate to achieve horizontal vibration with an amplitude of 1.5mm ± 0.2mm and brushing motion with a frequency of 3000-4000 times / minute. The flexible universal joint is made of shape memory alloy and connects the main body to the bristle substrate. It achieves multi-angle active posture adjustment of the bristle substrate within a range of ±30° through three mutually perpendicular rotation axes. The sensor array module is integrated and installed at the front end of the flexible brush head assembly; the sensor array module includes a three-dimensional force sensor (range 0-1N, accuracy ±0.01N), an attitude gyroscope (measurement range ±180°, accuracy ±0.5°), and a plaque fluorescence detection sensor (excitation wavelength 405nm, emission wavelength 620nm, detection sensitivity ≥90%); the three-dimensional force sensor collects the contact pressure between the brush bristles and the tooth; the attitude gyroscope collects the spatial angle information of the brush head; and the plaque fluorescence detection sensor collects the fluorescent optical signal of plaque on the tooth surface; The main control module uses an ARM Cortex-M4 core processor and is electrically connected to the drive units of the sensor array module and the flexible brush head assembly, respectively. It is used to receive sensor data and output control commands in real time, with a control response time of ≤10ms. The power supply module uses a 1000mAh lithium battery to power all the components of the machine. A single charge can support ≥30 standard cleaning operations.

[0006] As a preferred embodiment, the system also includes a fluid supply module; the fluid supply module comprises at least two independent reservoirs (each with a capacity of 5 ml), a pulse water pump (with an adjustable flow rate of 0.1-1 ml / min), and a fluid mixing pipeline; the pulse water pump connects each reservoir and is connected to the fluid mixing pipeline, which extends to a directional nozzle at the front end of the hair graft matrix, with a nozzle diameter of 0.3 mm and a spray angle of 45° aimed at the gingival sulcus area.

[0007] Further optimization includes a waste liquid suction module; the waste liquid suction module includes a miniature negative pressure fan (negative pressure value 0.02-0.05MPa) and a suction channel. The suction channel is arranged inside the flexible universal joint. The suction opening of the suction channel is located on the side of the hair-planting substrate, with an opening diameter of 0.5mm, forming a convection structure with the spray hole.

[0008] Further preferably, the main unit is equipped with an RFID identification module (operating frequency 13.56MHz), and the detachable flexible brush head assembly has a built-in passive RFID tag. The RFID identification module is electrically connected to the main control module and is used to identify the brush head's identity information and cumulative usage time. It automatically locks when the usage time exceeds 3 months or the number of uses exceeds 90 times.

[0009] Further optimization involves integrating a miniature endoscopic camera (720P resolution, 120° field of view) into the main unit. The camera lens is positioned facing the oral cavity to acquire images of the dental arch, supporting the reconstruction of a three-dimensional oral cavity map with a reconstruction accuracy of ≤0.1mm.

[0010] Further optimization involves the main unit being equipped with a human-computer interaction unit (touch buttons) and an audio-visual prompt unit (LED indicator light + buzzer). The human-computer interaction unit and the audio-visual prompt unit are respectively connected to the main control module for mode switching and status feedback.

[0011] Further optimization involves using food-grade silicone material for the hair implantation substrate, with 3 fluid jet holes and 2 waste liquid suction openings arranged alternately, all facing the gingival sulcus area.

[0012] In a further preferred embodiment, the device is also equipped with a wireless communication module (Bluetooth 5.0 / BLE), which is electrically connected to the main control module for data transmission and remote updating of control parameters, with a transmission rate of ≥1Mbps.

[0013] 3.3 Beneficial Effects Breakthrough improvement in angle control: Adopting a multi-degree-of-freedom flexible universal joint structure, the brush head can actively adjust its spatial posture and stably maintain a 45°±2° Bass brushing working angle. The angle deviation rate is reduced from 37%-58% of the existing technology to less than 5%, solving the industry pain point of difficulty in accurately controlling the angle by manual operation. Multimodal sensing integration: The brush head integrates a three-dimensional force sensor, a posture gyroscope, and a plaque fluorescence sensor, which can simultaneously acquire multi-dimensional raw sensing data of pressure, posture, and plaque. After data fusion, it provides complete input for AI algorithms, improving cleaning effect by more than 40% compared to existing single-sensor solutions. Innovative fluid system design: The combination of dual liquid storage tanks + mixing pipeline + negative pressure recovery enables precise supply of various nursing liquids and efficient waste liquid recovery, with a waste liquid recovery rate of ≥95%, avoiding discomfort caused by liquid residue in the mouth, while expanding the functional boundaries of the product; Highly versatile hardware platform: The layered hardware architecture, with fluid supply and waste liquid suction modules as optional expansion modules, ensures the overall basic architecture of the machine is universal; manufacturers can choose to equip all or some of the expansion components according to product positioning, reducing product development cycle by 40%. Significant industrialization advantages: It reserves multiple expansion hardware interfaces, allowing for the selective installation of brush head recognition, image acquisition, and wireless communication components; its modular structure facilitates industrial assembly, and its detachable brush head makes disinfection and replacement convenient; its basic hardware platform can adapt to various oral adaptive cleaning control algorithms, providing a foundation for subsequent technological iterations. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of the AI ​​flexible adaptive oral Bass standardization cleaning device of the present invention; Figure 2 is a cross-sectional view of the internal structure of the flexible brush head assembly; Figure 3 is a block diagram of the basic hardware module connection of the device of the present invention. Detailed Implementation

[0015] The device will now be described with reference to embodiments, but the present invention is not limited to these embodiments. Those skilled in the art, based on the technical concept disclosed herein, may make conventional adjustments or equivalent substitutions to the structural layout and component selection without departing from the scope of the claims; all such adjustments and substitutions fall within the scope of the present invention. Example

[0016] An AI-powered flexible adaptive Papanicolaou cleaning device includes a main unit, a detachable flexible brush head assembly, a main control module, a sensor array module, and a lithium battery power supply module. The flexible brush head assembly incorporates a flexible universal joint made of shape memory alloy and a micro piezoelectric ceramic motor drive unit. The bristle implantation substrate integrates a 0-1N three-dimensional force sensor, a ±0.5° accuracy attitude gyroscope, and a plaque fluorescence sensor with a detection sensitivity ≥90%. The main control module uses an ARM Cortex-M4 core processor to receive sensor signals and control the drive unit's actions, with a control response time ≤10ms. This embodiment can maintain the standard Papanicolaou angle and perform basic cleaning functions, making it suitable for entry-level products. Example

[0017] Based on Example 1, a fluid supply module and a waste liquid suction module are added; dual 5ml liquid storage tanks are configured to achieve liquid mixing output from 0-100% ratio; a micro negative pressure fan provides 0.02-0.05MPa negative pressure; the suction channel collects oral waste liquid in real time, with a waste liquid recovery rate of ≥95%; the main unit is equipped with a 13.56MHz RFID identification module, a 720P micro endoscope camera, a Bluetooth 5.0 wireless communication module, and a human-machine audio-visual prompt unit to realize brush head recognition, tooth row image acquisition, and remote data interaction functions, which is suitable for high-end flagship products.

Claims

1. An AI-powered flexible adaptive Papanicolaou-standardized oral cleaning device, characterized in that: It includes the main unit, a detachable flexible brush head assembly, a main control module, a sensor array module, and a power supply module; The detachable flexible brush head assembly includes a bristle implantation substrate, a multi-degree-of-freedom flexible universal joint, and a drive unit. The drive unit uses a micro piezoelectric ceramic motor to drive the bristle implantation substrate to achieve horizontal vibration with an amplitude of 1.5mm ± 0.2mm and brushing motion with a frequency of 3000-4000 times / minute. The flexible universal joint is made of shape memory alloy and achieves multi-angle active posture adjustment of the bristle implantation substrate within a range of ±30° through three mutually perpendicular rotation axes. The sensor array module is integrated at the front end of the flexible brush head assembly. The sensor array includes a three-dimensional force sensor (range 0-1N, accuracy ±0.01N), an attitude gyroscope (measurement range ±180°, accuracy ±0.5°), and a plaque fluorescence detection sensor (excitation wavelength 405nm, emission wavelength 620nm, detection sensitivity ≥90%). The main control module uses an ARM Cortex-M4 core processor, which is electrically connected to the drive units of the sensor array module and the flexible brush head assembly, respectively, with a control response time of ≤10ms; the power supply module uses a 1000mAh lithium battery, which can support ≥30 standard cleaning operations on a single charge.

2. The AI ​​flexible adaptive oral cavity Papanicolaou standardized cleaning device according to claim 1, characterized in that: It also includes a fluid supply module; the fluid supply module includes at least two independent liquid storage tanks (each with a capacity of 5ml), a pulse water pump (flow rate adjustable from 0.1 to 1ml / min) and a fluid mixing pipeline. The pulse water pump is connected to each liquid storage tank and connected to the fluid mixing pipeline. The mixing pipeline is connected to a directional spray hole with a diameter of 0.3mm at the front end of the hair graft matrix, and the spray hole angle is 45° aimed at the gingival sulcus area.

3. The AI ​​flexible adaptive oral cavity Papanicolaou standardization cleaning device according to claim 2, characterized in that: It also includes a waste liquid suction module, which includes a miniature negative pressure fan (negative pressure value 0.02-0.05MPa) and a suction channel. The suction channel is arranged inside the flexible universal joint and extends to the suction opening with a diameter of 0.5mm on the side of the hair-implanting substrate, forming a convection structure with the spray hole.

4. The AI ​​flexible adaptive oral cavity Papanicolaou standardization cleaning device according to claim 1, characterized in that: The main unit is equipped with an RFID identification module (operating frequency 13.56MHz) at the front end. The detachable flexible brush head assembly has a built-in passive RFID tag. The RFID identification module is electrically connected to the main control module and is used to identify the brush head's identity information and cumulative usage time. It will automatically lock when the usage time exceeds 3 months or the number of uses exceeds 90 times.

5. The AI ​​flexible adaptive oral Bass standardization cleaning device according to claim 1, characterized in that: The main unit integrates a miniature endoscopic camera (720P resolution, 120° field of view). The camera is positioned facing one side of the oral cavity to acquire images of the dental arch and support the reconstruction of the oral cavity three-dimensional map with a reconstruction accuracy of ≤0.1mm.

6. The AI ​​flexible adaptive oral cavity Papanicolaou standardization cleaning device according to claim 1, characterized in that: It also includes a wireless communication module (Bluetooth 5.0 / BLE), which is electrically connected to the main control module for data transmission and remote updating of control parameters, with a transmission rate of ≥1Mbps.

7. The AI ​​flexible adaptive oral cavity Papanicolaou standardization cleaning device according to claim 1, characterized in that: The hair graft substrate is made of food-grade silicone and has 3 fluid jet holes and 2 waste liquid suction openings. The jet holes and suction openings are arranged alternately and all face the gingival sulcus area.

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