Locking Toothbrush Case With UV Sterilization and Usage Sensing

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Solution Overview

Problem

Existing toothbrushes harbor potentially harmful microorganisms, leading to disease transmission and contamination risks, with no self-securing, self-monitoring, or self-cleaning solutions available, and they contribute to environmental waste due to frequent disposal.

Innovation Solution

An electronic toothbrush system with a sensor array, biometric locking mechanism, UV lights for sterilization, and a protective case that sanitizes and secures the toothbrush, integrated with a base and application program for hygiene regimen management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If toothbrushes are used repeatedly, then they provide continuous oral hygiene benefit, but they accumulate harmful microorganisms and become contaminated

Engineering Contradiction:

Improveservice lifeVSAvoidmicroorganism contamination

Core Design Contradiction:

Duration of action of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The UV-C light source performs preliminary sterilization action on the toothbrush head and handle between uses, eliminating microorganisms before they can accumulate and cause contamination during repeated use

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent converts the harmful accumulation of microorganisms into a beneficial sterilization process by using UV-C light to eliminate pathogens, transforming the contamination problem into a hygiene solution

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Object-generated harmful factors

If toothbrushes are disposed of frequently to prevent contamination, then hygiene is maintained, but environmental waste increases

Engineering Contradiction:

Improvecontamination riskVSAvoidenvironmental waste

Core Design Contradiction:

Object-generated harmful factorsVSLoss of substance

Solution Approach 1:

The patent converts the need for frequent disposal into a benefit by implementing UV-C sterilization that allows safe repeated use, eliminating microorganisms instead of discarding the toothbrush and reducing environmental waste

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

Instead of discarding the toothbrush after a single use or after contamination, the patent recovers and reuses it by sterilizing with UV-C light, extending its service life and reducing waste

Inventive Principle:

Principle #34Discarding and recovering

3Ease of operation

If toothbrushes are shared or stored accessible, then convenience is improved, but unauthorized use and contamination risk increase

Engineering Contradiction:

ImproveaccessibilityVSAvoidunauthorized use contamination

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a biometric authentication intermediary (fingerprint scanner, facial recognition, or RFID reader) between the user and the toothbrush, verifying identity before allowing access and preventing unauthorized use

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The toothbrush performs self-verification through biometric authentication, automatically identifying the authorized user and enabling or disabling access without manual intervention, combining security with ease of use

Inventive Principle:

Principle #25Self-service

4Reliability

If manual monitoring of toothbrush hygiene is required, then contamination can be detected, but user compliance and convenience decrease

Engineering Contradiction:

Improvehygiene monitoring accuracyVSAvoiduser compliance

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The toothbrush monitors its own hygiene status through integrated sensors that detect microbial presence, brush usage frequency, and storage conditions, eliminating the need for manual user monitoring and improving compliance

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent implements automated feedback through sensors that continuously monitor hygiene conditions and provide real-time information to the user via display or mobile app, enabling reliable hygiene tracking without manual intervention

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively prevents unauthorized use, sanitizes the toothbrush between uses, and promotes oral hygiene through automated reminders and data management, reducing contamination and environmental impact.

Implementation Method 1

one or more UV lights which emit UV light towards the bristle cluster of the toothbrush

Methodology Applied

Scientific EffectUV sterilization: Absorption (EM radiation)

Data Source

PatentUS20250344840A1Smart locking hygienic toothbrush and oral health system

Publication Date: 2025.11.13 MONROY NAYELI SAENZ

AI summary

A smart locking hygienic toothbrush and oral health system is disclosed, including a toothbrush including a handle portion and a head portion, the head portion including a bristle cluster. A sensor array is in communication with a housing of the toothbrush to detect the usage of the toothbrush and a lockable enclosure to protect usage and exposure of the toothbrush. A microprocessor is in electrical communication with the sensor array. One or more I/O devices are in electrical communication with the microprocessor, the I/O devices to provide an alert, a sound, or an indication. A protective case is dimensioned to at least partially receive the toothbrush and to encase the head portion.