Adjustable Volume Breast Prosthesis via Segmented Silicone Chambers

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Solution Overview

Problem

Existing breast prostheses lack the ability to be easily customized to fit individual wearer needs, particularly in terms of volume adjustment, which can lead to discomfort and inadequate fit.

Innovation Solution

A procedure for producing a breast prosthesis with a customizable volume, involving the connection of four plastic films to form a template with three chambers, filling these chambers with a networkable silicone mass, and networking the silicone mass to create a cross-linked silicone rubber that allows for volume adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If breast prostheses are made with fixed volume, then manufacturing is simpler, but adaptability to individual wearer needs is reduced

Engineering Contradiction:
Improvevolume adjustabilityVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The breast prosthesis is divided into multiple chambers (first chamber, second chamber, third chamber) within the shell body, allowing independent volume adjustment of each chamber. This segmentation enables customized volume configuration while maintaining a relatively simple overall structure, resolving the contradiction between adaptability and complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The breast prosthesis incorporates a fluid communication system with valves that allows dynamic transfer of fluid between chambers and the external environment. This dynamic mechanism enables volume adjustment without complex mechanical components, achieving adaptability while keeping structure simple.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple chambers are used for volume adjustment, then adaptability improves, but manufacturing complexity increases

Engineering Contradiction:
Improvevolume customizationVSAvoidproduction complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple chambers are combined within a single shell body structure, with fluid communication pathways integrating the chambers into a unified system. This merging approach allows volume adjustment functionality while maintaining a simple manufacturing process, as the chambers are formed as integral parts rather than separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shell body serves multiple functions: it contains the chambers, provides structural support, and integrates the fluid communication system. This multi-functionality reduces the number of separate components needed, simplifying manufacturing while achieving volume customization through the chamber system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If cross-linked silicone rubber is used, then haptic comfort improves, but volume adjustability may be restricted

Engineering Contradiction:
Improvehaptic comfortVSAvoidvolume expandability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The cross-linked silicone rubber is segmented into multiple chambers within the shell body. Each chamber can be independently filled with fluid, allowing volume adjustment while the cross-linked material maintains its haptic comfort properties. The segmentation prevents the need for complete volume expansion of the entire prosthesis.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A fluid communication system with valves acts as an intermediary mechanism, allowing fluid to be transferred between chambers and the external environment. This intermediary system enables volume adjustment without compromising the haptic comfort provided by the cross-linked silicone rubber material.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 resulting breast prosthesis offers improved comfort and fit, as the customizable volume can be adjusted to match the wearer's preferences, reducing the likelihood of discomfort and deformation.

Implementation Method 1

cross-linking the silicone mass

Methodology Applied
Scientific EffectCross-linking: Chemical Bonding

Implementation Method 2

the crosslinking of the silicone mass occurs by increasing the temperature

Methodology Applied
Scientific EffectThermal curing: Heating

Implementation Method 3

Phase-change materials serve to improve thermal regulation on the wearer's skin and are therefore preferably blended into the silicone compound of the first shell body

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 4

Phase-change materials serve to improve thermal regulation on the wearer's skin

Methodology Applied
Scientific EffectThermal regulation: Heat Sink

Implementation Method 5

The peripheral joining of the four plastic films according to step (a) can be achieved by peripheral welding

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentEP3843661B1Method for producing a breast prosthesis having an adjustable volume
Publication Date: 2025.04.02 AMOENA MEDIZIN ORTHOPADIE TECHN
  • EP3843661B1 patent drawingFigure 1~2
  • EP3843661B1 patent drawingFigure 3~4

AI summary

The invention relates to a method for producing a breast prosthesis (1) having an adjustable volume, wherein the breast prosthesis comprises a first shell body (10), a second shell body (20) which is circumferentially connected thereto, and a fluid chamber (30) arranged between the shell bodies, wherein the method comprises the following steps: (a) peripherally joining four plastics films in order to provide a template comprising three chambers; (b) filling the upper and lower chamber with a crosslinkable silicone compound; (c) crosslinking the silicone compound.