Integrated Photo-Activatable Formulation Applicator

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Solution Overview

Problem

Conventional formulation applicators are inefficient in applying and activating photo-activatable formulations, as they require separate devices for dispensing and activating the formulations, leading to improper application and activation.

Innovation Solution

An applicator device that integrates a photo-active formulation assembly for dispensing and a photo-dose assembly for activating photo-activatable formulations, using focused electromagnetic energy to activate the formulations immediately after dispensing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If separate devices are used for dispensing and activating photo-activatable formulations, then device complexity is reduced, but application precision and activation effectiveness deteriorate

Engineering Contradiction:
Improvedevice complexityVSAvoidapplication precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent combines the dispensing mechanism and photo-activation source into a single integrated applicator device. The formulation reservoir, applicator element, and electromagnetic energy source are merged into one unit, allowing simultaneous or sequential dispensing and activation of the photo-activatable formulation directly on the skin surface, thereby improving application precision while maintaining manageable device complexity through functional integration.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If separate devices are used for dispensing and activating photo-activatable formulations, then ease of operation is improved, but activation effectiveness deteriorates

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

Solution Approach 1:

By integrating the photo-activation source directly into the applicator device, the system ensures that activation occurs precisely where the formulation is applied. This eliminates the need for separate handling steps and ensures reliable activation effectiveness, while the device remains easy to operate through a unified structure that performs both dispensing and activation functions in one action.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If formulations are exposed to air and environmental factors, then usability is maintained, but formulation stability and usable life deteriorate

Engineering Contradiction:
ImproveusabilityVSAvoidformulation stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent extracts the photo-activatable formulation from direct exposure to environmental factors by containing it within a sealed reservoir system until the moment of application. The formulation is dispensed in a controlled manner and immediately activated, minimizing its exposure time to air and environmental factors, thereby maintaining formulation stability and extending usable life while preserving usability.

Inventive Principle:
Principle #2Taking out (Extraction)

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 integrated applicator device ensures efficient and precise application and activation of photo-activatable formulations, reducing waste and exposure to environmental factors, while improving usability and effectiveness.

Implementation Method 1

When the photo-activatable formulations are exposed to electromagnetic energy at the activation wavelength, the electromagnetic energy activates the photo-activatable formulations, causing the change or action

Methodology Applied
Scientific EffectPhoto-activation: Photopolymerisation

Data Source

PatentEP3340833B1Connected photo-activatable formulation applicator
Publication Date: 2025.02.19 LOREAL SA
  • EP3340833B1 patent drawingFigure 1
  • EP3340833B1 patent drawingFigure 2
  • EP3340833B1 patent drawingFigure 3

AI summary

An applicator device includes a photo-active formulation assembly and a photo-dose assembly operably coupled to the photo-active formulation assembly. The photo-active formulation assembly includes one or a plurality of dispenser portions and one or more photo-activatable formulation reservoirs. The photo-active formulation assembly is operable to dispense a photo-activatable formulation from the one or more photo-activatable formulation reservoirs onto one or more regions of a biological surface. The photo-dose assembly includes at least one illuminator oriented to focus electromagnetic energy onto one or more focal regions of a biological surface. The focused electromagnetic energy is of a character and for a duration sufficient to photo-activate the photo-activatable formulation dispensed from the one or more photo-activatable formulation reservoirs.