Oral Care Device With Segmented Jets For Inter-Proximal Cleaning

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Solution Overview

Problem

Current oral care devices are inadequate for simultaneously and effectively cleaning all surfaces of teeth, particularly the inter-proximal areas, requiring multiple devices and high user compliance, which is time-consuming and inconvenient.

Innovation Solution

A device that directs a liquid onto multiple oral cavity surfaces using a reciprocating flow mechanism, providing simultaneous contact through a plurality of jets with controlled flow rates, pressures, and pulsation patterns to clean teeth and gingival areas efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional toothbrush is used, then it can clean tooth surfaces, but it cannot adequately clean the inter-proximal areas and requires significant user energy input

Engineering Contradiction:
Improveuser energy inputVSAvoidcleaning coverage
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The device divides the liquid delivery system into multiple independent jets (first jet, second jet, third jet, fourth jet) positioned at different locations to target specific oral surfaces including inter-proximal areas, replacing the single-brush contact method with segmented fluid delivery

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device combines multiple cleaning functions into a single apparatus that can clean buccal, lingual, occlusal, and inter-proximal surfaces simultaneously through coordinated jet activation, eliminating the need for separate toothbrush and floss devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If oral irrigators with a single jet are used, then they can clean inter-proximal areas, but they require precise direction and are only valuable for teeth with braces

Engineering Contradiction:
Improveinter-proximal cleaning capabilityVSAvoiduser compliance
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The device segments the liquid delivery into four distinct jets positioned at different angles and locations, allowing simultaneous coverage of multiple tooth surfaces without requiring precise manual positioning by the user

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device employs multiple jets that can be selectively activated depending on the specific cleaning need, providing more cleaning capability than required for different oral conditions while maintaining simple operation

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If multiple devices are used to remove debris and plaque, then cleaning effectiveness is improved, but the process becomes extremely time-consuming and inconvenient

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidcleaning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The device merges the functions of toothbrushes (buccal and lingual surface cleaning) and oral irrigators (inter-proximal cleaning) into a single integrated system that delivers liquid through multiple jets simultaneously activated by a single user action

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device performs multiple cleaning functions including buccal surface cleaning, lingual surface cleaning, occlusal surface cleaning, and inter-proximal cleaning all through one device, replacing the need for separate toothbrush, floss, and irrigator devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 device effectively cleans teeth and gingival areas, including inter-proximal spaces, with reduced user effort and time, improving oral hygiene and cosmetic appearance by minimizing the need for multiple devices and enhancing cleaning efficacy.

Implementation Method 1

jets of liquid are directed from the first manifold onto the first surfaces of the teeth and/or gingival area... and directed through, between, and around the surfaces of the teeth and/or gingival area

Methodology Applied
Scientific EffectFluid jet impact: Jet

Implementation Method 2

jets of liquid are directed... to provide controlled interdental, gumline, surface and/or gingival area cleaning

Methodology Applied
Scientific EffectFluid shear force: Shear Stress

Data Source

PatentEP2787922B1Oral care cleaning and treating device
Publication Date: 2017.10.11 JOHNSON & JOHNSON CONSUMER INC
  • EP2787922B1 patent drawingFigure 1
  • EP2787922B1 patent drawingFigure 2
  • EP2787922B1 patent drawingFigure 3a~3b

AI summary

A device for directing a liquid onto a plurality of surfaces of the oral cavity, the device including a handle, a neck, and a head, where the head includes a cleaning component including a chamber for maintaining the liquid proximate the surfaces, where the chamber is defined by front and rear sealing membranes, inner side walls and a base inner wall, and where the inner side walls each include a plurality of openings, the device further including a first manifold and a second manifold, a first port and a second port for conveying liquid; and means for providing an effective seal of the device within the oral cavity.