Wireless Toothbrush Pressure Sensor Feedback System
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Solution Overview
Problem
Current electric toothbrushes lack motivation for users, particularly children, to brush their teeth for the appropriate duration and with the correct pressure, leading to inefficient cleaning and potential oral health issues.
Innovation Solution
An electric toothbrush system that includes a pressure sensor coupled with a wireless transmitter, which sends signals to an output device such as a DVD player or smartphone to play content only if the user applies the correct brushing pressure, motivating them to maintain proper technique and duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a timer with audio signal is used to notify users of brushing duration, then the brushing time can be standardized, but the signal is very faint and difficult to hear when the toothbrush is powered up and in a user's mouth
Solution Approach 1:
The patent introduces an intermediary wireless communication system between the toothbrush and an external device (smartphone, tablet, or TV). The toothbrush sends brushing duration data wirelessly to the external device, which then provides visual or audible feedback. This mediator resolves the contradiction by transferring the notification function from the toothbrush itself (where it is inaudible) to an external device (where it is clearly perceivable).
Solution Approach 2:
The patent transitions the notification from the acoustic dimension (audio signal from the toothbrush) to the visual dimension (display on external device screen). This dimensional change allows users to perceive brushing status clearly without relying on faint audio signals that are difficult to hear during brushing.
2Measurement precision
If a pressure sensor is used to standardize the amount of pressure applied to teeth, then brushing technique can be improved, but the device complexity increases
Solution Approach 1:
The patent uses wireless communication as an intermediary to transmit pressure sensor data from the toothbrush to an external device for processing and feedback. This approach reduces the complexity burden on the toothbrush itself by offloading the feedback generation and user interface functions to the external device, while still maintaining precise pressure monitoring capabilities.
3Ease of operation
If conventional toothbrushes are used without motivational elements, then the device simplicity is maintained, but users lack motivation to brush their teeth for the appropriate duration and with correct pressure
Solution Approach 1:
The patent implements a feedback loop where the toothbrush monitors brushing parameters (duration, pressure) and wirelessly communicates this information to an external device that provides real-time feedback to the user. This feedback mechanism motivates users by making their brushing performance visible and providing guidance, while the wireless communication architecture keeps the toothbrush itself relatively simple.
Solution Approach 2:
The patent leverages the multi-functionality of external devices (smartphones, tablets, TVs) to provide motivational content and feedback. These devices serve multiple purposes: receiving brushing data, displaying visual feedback, providing audio notifications, and offering motivational content. This approach adds motivational capabilities without significantly increasing toothbrush complexity by utilizing the existing capabilities of external devices.
Data Source
AI summary
Disclosed is an electric toothbrush for use with wireless devices. A pressure sensor coupled to a wireless transmitting device determines whether the electric toothbrush is being utilized correctly. When the toothbrush is utilized correctly, the wireless transmitter sends a signal to a receiving device which displays an appropriate output. When the toothbrush is not utilized correctly, the transmitter ceases transmitting a signal and the output from the receiver ceases to be displayed.