LED Vaginal Light Therapy Using Non-UV Germicidal Wavelengths

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Solution Overview

Problem

Current treatments for vaginal infections, such as bacterial vaginosis and yeast infections, often involve harsh chemicals or drugs that can cause side effects and contribute to antibiotic resistance, and there is a need for a non-invasive, effective alternative.

Innovation Solution

A light-based vaginal therapy device using LEDs that emit non-UV germicidal light, such as blue, red, or violet wavelengths, to treat bacterial and fungal infections, optionally with a photo-sensitizer, and a reusable or single-use design for ease of use and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If antibiotics or antifungal medications are used to treat vaginal infections, then the infection is eliminated, but antibiotic resistance develops and recurrence rates increase

Engineering Contradiction:

Improvetreatment effectivenessVSAvoidantibiotic resistance

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces chemical pharmacological treatments with a physical light-based therapy system. LEDs emitting specific wavelengths (blue, red, violet) are applied directly to the vaginal tissue to eliminate pathogens through photodynamic effects, bypassing the chemical mechanisms that lead to antibiotic resistance while maintaining treatment effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the treatment parameter from chemical substances to specific light wavelengths. By using non-UV germicidal light in the visible spectrum (405-470nm blue, 620-750nm red, 380-450nm violet), the system achieves pathogen elimination through optical parameters rather than chemical pharmacology, avoiding resistance development.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If harsh chemicals or drugs are used to treat vaginal infections, then the infection is treated, but side effects occur and recurrence rates increase

Engineering Contradiction:

Improveinfection treatmentVSAvoidside effects

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent substitutes chemical drug therapy with physical light therapy. The LED-based system delivers targeted wavelengths that selectively affect pathogens without the systemic absorption and side effects associated with pharmacological treatments, providing effective infection treatment with improved safety profiles.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If a reusable device is used for vaginal light therapy, then cost is reduced, but cleaning and sanitation become more complex

Engineering Contradiction:

Improvedevice costVSAvoidcleaning and sanitation

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The patent describes both reusable and disposable embodiments of the vaginal light therapy device. The disposable version eliminates cleaning and sanitation concerns while maintaining treatment efficacy, representing a trade-off where single-use devices simplify hygiene procedures despite increased per-treatment cost.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Object-affected harmful factors

If non-UV germicidal light is used instead of UV light, then safety is improved, but germicidal effectiveness may be reduced

Engineering Contradiction:

Improvetissue damageVSAvoidpathogen elimination

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The invention changes the light wavelength parameter from UV to visible spectrum non-UV germicidal light. Specific wavelengths (blue 405-470nm, red 620-750nm, violet 380-450nm) are selected to maintain pathogen elimination capability while avoiding the tissue-damaging effects of UV radiation, achieving both safety and effectiveness.

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

Provides a safe, effective treatment for vaginal infections without systemic side effects, reducing reliance on drugs and potentially lowering recurrence rates, suitable for both single and multiple uses.

Implementation Method 1

one or more light sources carried on the body, each light source configured to emit light outwardly from the body at one or more wavelengths within a range of non-UV germicidal light

Methodology Applied

Scientific EffectGermicidal light effect: Light

Data Source

PatentEP3313513B1Light-based vaginal light therapy device

Publication Date: 2025.12.10 KLANG GREGG ALAN

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AI summary

The embodiments herein provide an LED based vaginal light therapy device for a plurality of bacterial and fungal infections. The device comprises an LED body, a cervix support, a single or a plurality of LEDs, a switch, a tether, microchip and a battery. One end of the device comprises a cervix support to place the device smoothly against the cervix. A plurality of LEDs is provided over the LED body. The LED body comprises one or more LEDs and each LED emits a light having a wavelength in a therapeutic zone of light. The light emitted are in a range of blue light and/or red light. The microchip is housed within the LED body. The microchip connects a battery to the single or plurality of LED' s and is further connected to the switch.