Resilient Interproximal Pick for Sonic Vibration Cleaning

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Solution Overview

Problem

Existing dental cleaning devices, including sonic toothbrushes and interproximal cleaning devices, are ineffective in cleaning interproximal spaces between teeth and the gingival sulcus, and can cause harm if used incorrectly.

Innovation Solution

An interproximal pick device mounted on a vibration generating handle that transmits sonic vibrations through a resilient tube and rigid housing to a flexible pick for effective cleaning, with a pH indicator to monitor oral health.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a rigid steel tip is used for interproximal cleaning, then cleaning effectiveness is improved, but the device can cause pain and harm if used incorrectly

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidpain and harm to teeth and gums
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from rigid steel to resilient material, and changes the tip geometry from sharp to rounded. This resolves the contradiction by maintaining cleaning effectiveness through vibration while eliminating the harmful sharp edges and rigidity that cause pain and damage to dental structures.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a composite structure combining a resilient tube material with a rounded tip, creating a device that transmits vibration effectively while being safe for dental tissues. The resilient material provides both vibration transmission and inherent safety by eliminating sharp edges.

Inventive Principle:
Principle #40Composite materials

2Power

If sonic vibrations are transmitted through a rigid structure, then vibration transmission efficiency is improved, but the device lacks adaptability to different mounting posts

Engineering Contradiction:
Improvevibration transmission efficiencyVSAvoidcompatibility with different mounting posts
Core Design Contradiction:
PowerVSAdaptability or versatility

Solution Approach 1:

The patent changes the structural parameter from rigid to resilient, allowing the tube to deform and adapt to different mounting post dimensions while still transmitting sonic vibrations effectively. The resilience enables both adaptability and sufficient vibration transmission.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs a resilient tube that acts as a flexible element to transmit vibrations. This flexible structure can accommodate variations in mounting post geometry while maintaining effective vibration transmission to the tip.

Inventive Principle:
Principle #30Flexible shells and thin films

3Ease of operation

If a sharp pointed pick is used for cleaning interproximal spaces, then access to tight spaces is improved, but the device can damage enamel and cause gingival inflammation

Engineering Contradiction:
Improveaccess to interproximal spacesVSAvoidenamel damage and gingival inflammation
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent uses an asymmetric rounded tip design that is tapered to fit between teeth but has no sharp edges. The asymmetry allows insertion into tight spaces while the rounded geometry prevents damage to enamel and gingival tissues.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent changes the tip geometry parameter from sharp to rounded, eliminating the harmful concentrated stress of a sharp point while maintaining the ability to access interproximal spaces through the tapered asymmetric shape.

Inventive Principle:
Principle #35Parameter changes

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

Effectively removes plaque, biofilm, and bacterial colonies, while monitoring oral pH to prevent gingivitis and periodontal disease, using a user-friendly design.

Implementation Method 1

vibrations from the mounting post are transmitted through the resilient tube, through the rigid tubular housing, and into the elongate resilient pick

Methodology Applied
Scientific EffectVibration transmission: Vibration

Data Source

PatentUS12446996B2Interproximal pick device for a sonic vibration generating handle
Publication Date: 2025.10.21 HODGE LINDA LORRAINE
  • US12446996B2 patent drawing
  • US12446996B2 patent drawing

AI summary

An interproximal pick device has an elongate resilient pick that extends from a rigid tubular housing. A proximal end of the elongate resilient pick is fixedly secured within an inner conduit adjacent a top end of the rigid tubular housing. A resilient tube is positioned within the inner conduit adjacent a bottom end of the rigid tubular housing. The resilient tube is sized and shaped to receive the mounting post of a sonic vibration generating handle, such that sonic vibrations from the mounting post are transmitted through the resilient tube, through the rigid tubular housing, and into the elongate resilient pick, for cleaning between the teeth.