Sonic Vibration Eyelid Cleaning Tool for Safe Home Use

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Solution Overview

Problem

Existing methods for at-home eyelid cleaning are either ineffective due to lack of dexterity requirements, costly, or pose risks of irritation and abrasion, particularly for children and the elderly, as they often rely on manual application or require frequent office visits.

Innovation Solution

A hand-held device with a waterproof housing and a sonically driven cleaning head that vibrates to effectively scrub the eyelids and eyelashes, reducing the need for manual dexterity and allowing for simultaneous cleaning of both eyelids without the use of disposable pads or abrasive scrubbing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If gentle soaps or solutions are applied manually to eyelids, then cleaning can be performed at home, but the patient lacks dexterity to effectively apply treatment and contact time is insufficient

Engineering Contradiction:
Improveease of applicationVSAvoidtreatment effectiveness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The device allows the patient to self-administer treatment without requiring manual dexterity. The pre-loaded applicator with controlled-release formulation enables the patient to simply position the device against the eyelid margin, and the system automatically delivers the correct amount of medication for the required duration, making the patient serve themselves effectively without needing skilled manual application

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The treatment formulation is pre-loaded into the device during manufacturing, eliminating the need for the patient to manually prepare or apply soap/solution. The controlled-release mechanism is pre-configured to maintain therapeutic contact time, so all preparatory actions are performed in advance rather than requiring dexterous manual application at the moment of treatment

Inventive Principle:
Principle #10Preliminary action

2Reliability

If abrasive pads or cloths are used to increase scrubbing potential, then cleaning effectiveness improves, but the risk of scratching the eyeball surface increases

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidrisk of eye irritation or abrasion
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The device replaces the mechanical scrubbing action of abrasive pads with a controlled-release chemical delivery system. Instead of relying on manual scrubbing force that risks scratching the eye, the system uses a pre-formulated medication delivery mechanism that maintains therapeutic contact time, substituting mechanical abrasion with a controlled chemical treatment process that is inherently safer

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The device introduces an intermediary controlled-release formulation between the cleaning agent and the eyelid margin. This intermediary system delivers the medication in a controlled manner over time, mediating the interaction to prevent direct mechanical contact that could cause abrasion while still achieving effective cleaning and treatment

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If hand-held rotating abrasive devices are used in office setting, then professional cleaning is achieved, but the device complexity and cost increase

Engineering Contradiction:
Improveprofessional cleaning qualityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the essential therapeutic function from complex office-based rotating abrasive devices and isolates it into a simple pre-loaded applicator system. By removing the complex rotating mechanism and power source, only the essential medication delivery function remains in a simplified form that can be easily manufactured and used at home while maintaining professional-quality treatment outcomes

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If patients squeeze eyes tightly when applying treatment, then fear of pain or burning is avoided, but the full effect of treatment is prevented

Engineering Contradiction:
Improvepatient comfortVSAvoidtreatment efficacy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The controlled-release formulation ensures continuous therapeutic action over an extended period. Even if the patient initially squeezes their eyes due to discomfort, the medication continues to be released over time, maintaining treatment efficacy throughout the contact period. The continuous release mechanism compensates for any initial patient resistance or eye closing, ensuring the full treatment effect is ultimately achieved

Inventive Principle:
Principle #20Continuity of useful action

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 provides enhanced cleaning power and safety by using sonic vibrations to break up debris and disrupt bacterial cell walls, making it suitable for all skin types and reducing treatment time and cost, while being easy to use for individuals with dexterity issues.

Implementation Method 1

a vibration generator is used to sonically drive the cleaning head. The sonically driven cleaning head provides improved cleaning power

Methodology Applied
Scientific EffectSonic vibration: Ultrasonic Vibration

Implementation Method 2

The vibration of the cleaning head in contact effectively scrubs the upper eyelid or lower eyelid without the need for vigorous scrubbing or significant agility

Methodology Applied
Scientific EffectSonic cavitation: Acoustic Cavitation

Data Source

PatentEP3796881B1Eyelid cleaning tool
Publication Date: 2024.11.06 CONTI THOMAS
  • EP3796881B1 patent drawingFigure 1
  • EP3796881B1 patent drawingFigure 2
  • EP3796881B1 patent drawingFigure 3

AI summary

A hand-held device for home use is disclosed for cleaning eyelids, eye margins and eye lashes. The device includes a housing, which forms a handle, and a cleaning head, attached on one end. In accordance with an important aspect of the invention, a vibration generator is used to drive the cleaning head sonically. The sonically driven cleaning head is placed in contact with one or both eye lids for each eye and either held in a stationary position or moved from side to side or back and forth. The vibration of the cleaning head in contact with the soap and effectively scrubs the upper eyelid or lower eyelid without the need for vigorous scrubbing or significant agility. The vibrating cleaning head is a more effective daily home cleaning tool for eyelids and eyelashes than known devices with rotary swabs or sponges.