Smart Toothbrush Usage Tracking and Replacement Notification

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Solution Overview

Problem

Conventional toothbrushes do not notify users when it is time to replace them, leading to worn-out bristles that can damage gums and enamel, and ineffective cleaning.

Innovation Solution

A toothbrush equipped with a processor and memory that tracks the number of days or uses since activation, providing notifications to the user when it is time to replace the toothbrush, along with daily dental tips and reminders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional toothbrushes are used without replacement notifications, then the device complexity remains low, but the reliability of oral hygiene maintenance deteriorates

Engineering Contradiction:

Improveoral hygiene maintenanceVSAvoidtoothbrush system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The toothbrush automatically tracks its own usage duration and provides replacement notifications without requiring user intervention or external monitoring systems. The processor continuously monitors the time since initial activation and generates appropriate notifications, allowing the toothbrush to self-manage its service life.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system provides feedback to the user about the toothbrush's usage status through notifications displayed on the display device. This feedback loop informs users when replacement is needed based on the tracked usage time, creating a closed-loop system that maintains hygiene standards.

Inventive Principle:

Principle #23Feedback

2Loss of information

If the toothbrush provides continuous notification of days remaining, then the user awareness of replacement timing improves, but the energy consumption increases

Engineering Contradiction:

Improvereplacement timing informationVSAvoidtoothbrush energy consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

Instead of continuous notification, the system provides periodic notifications at specific intervals (e.g., when 90 days have elapsed or at regular monthly intervals). This periodic action maintains user awareness while significantly reducing energy consumption compared to continuous display or notification.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system performs preliminary tracking of usage time from initial activation, storing this information in memory. When notification time arrives, the processor retrieves the pre-tracked data and generates the appropriate notification, avoiding the need for continuous real-time calculation and reducing processing energy requirements.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250186180A1Toothbrush data and status display

Publication Date: 2025.06.12 ASHTEL STUDIOS

AI summary

A toothbrush may remind a user when to replace his or her toothbrush. The toothbrush may include a display that displays the number of days left in the recommended life of the toothbrush. The display may also be used to remind the user of the remaining time period, provide messages to the user, provide advertisements and provide a link to a web-based location to purchase additional replacement brush heads.