Microwave Tissue Interface Module with Bio-Barrier

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Solution Overview

Problem

Current treatments for hyperhidrosis, such as medications and Botox, have limitations in effectively reducing excessive sweating, which can lead to physical and emotional side-effects like dehydration and embarrassment, and there is a need for a more targeted and efficient method to treat skin conditions.

Innovation Solution

A microwave-based tissue modification system with a tissue interface module that includes a bio-barrier, vacuum port, and microwave antenna, where a flexible bio-barrier is positioned between the applicator and tissue acquisition chamber, allowing air to pass while preventing liquids, and a variable flow restrictor adjusts the opening size to optimize tissue interaction with microwave energy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a filter is disposed between the applicator chamber and tissue acquisition chamber to prevent liquid passage, then liquid interference is prevented, but device complexity increases

Engineering Contradiction:
Improvefluid preventionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A filter is introduced as an intermediary component between the applicator chamber and tissue acquisition chamber. This filter selectively permits air passage while blocking liquid passage, thereby preventing liquid interference in the microwave heating process without requiring complete sealing that would complicate the device design further.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The filter utilizes porous material structure with specific pore sizes that allow gas molecules (air) to pass through while blocking larger liquid molecules. This porous configuration enables selective permeability based on molecular size, achieving fluid prevention while maintaining air flow for tissue contact.

Inventive Principle:
Principle #31Porous materials

2Manufacturing precision

If a variable flow restrictor is used to optimize tissue interaction, then treatment precision is improved, but device complexity increases

Engineering Contradiction:
Improvetreatment precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

A variable flow restrictor is incorporated that can dynamically adjust the opening size between the tissue acquisition chamber and filter. This dynamic adjustment capability allows optimization of tissue interaction and microwave energy distribution, improving treatment precision while maintaining manageable device complexity through a single adjustable component.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple filters are positioned on opposing sides of the bio-barrier, then liquid prevention is enhanced, but device complexity increases

Engineering Contradiction:
Improveliquid preventionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The liquid prevention function is segmented into multiple filters positioned on opposing sides of the bio-barrier. This segmentation provides redundant liquid blocking capability, ensuring that even if one filter becomes compromised, the other continues to prevent liquid passage, thereby enhancing reliability while distributing the complexity across multiple simple components.

Inventive Principle:
Principle #1Segmentation

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 system effectively reduces sweat by applying microwave energy through a bio-compatible interface that prevents fluid interference, providing a controlled and efficient treatment for hyperhidrosis, improving both physical and emotional outcomes.

Implementation Method 1

the filter comprising openings configured to permit air to pass and to prevent liquid from passing

Methodology Applied
Scientific EffectPermeation: Permeation

Implementation Method 2

drawing a vacuum from a vacuum source in the applicator through the applicator chamber, a filter between the applicator chamber and the tissue acquisition chamber

Methodology Applied
Scientific EffectVacuum: Vacuum

Implementation Method 3

applying microwave energy to the patient's tissue

Methodology Applied
Scientific EffectMicrowave Radiation: Microwave Radiation

Implementation Method 4

a microwave-based tissue modification system

Methodology Applied
Scientific EffectDielectric Heating: Dielectric Heating

Implementation Method 5

a cooling element

Methodology Applied
Scientific EffectConduction (thermal): Conduction (thermal)

Data Source

PatentEP3295886B1Applicator and tissue interface module for dermatological device
Publication Date: 2019.11.20 MIRADRY INC
  • EP3295886B1 patent drawingFigure 1
  • EP3295886B1 patent drawingFigure 2
  • EP3295886B1 patent drawingFigure 3

AI summary

An tissue interface module has an applicator chamber on a proximal side of the tissue interface module and a tissue acquisition chamber on a distal side of the tissue interface module. The applicator chamber may include: an opening adapted to receive the applicator; an attachment mechanism positioned in the applicator chamber and adapted to attach the tissue interface module to the applicator; a sealing member positioned at a proximal side of the applicator chamber; and a vacuum interface positioned at a proximal side of the applicator chamber and adapted to receive a vacuum inlet positioned on a distal end of the applicator. The invention also includes corresponding methods.