Hemispherical Breast Support Mesh with Localized Elastin Gradients

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Solution Overview

Problem

Existing medical support devices for breast reconstruction lack uniform mechanical distribution, requiring more support at the lower part and comfort and natural appearance at the upper part, which current technologies fail to adequately address.

Innovation Solution

A three-dimensional, hemispherical medical support device with portions having different mechanical properties, where the lower portion is inelastic with high modulus of elasticity for support and the upper portion is elastic for comfort, made from biodegradable polymeric material, allowing for varying pore sizes and fiber density to achieve specific mechanical characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a uniform mesh structure is used throughout the support device, then manufacturing is simplified, but the device cannot provide both high support at the lower part and comfort at the upper part

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmechanical property distribution
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The mesh structure is designed with different mechanical properties in different locations: the lower portion has higher elastin content (20-40%) providing high support, while the upper portion has lower elastin content (5-15%) providing comfort and natural appearance. This local differentiation resolves the contradiction between manufacturing simplicity and mechanical adaptability.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The support device is divided into distinct portions (lower and upper) with different mechanical characteristics. The lower portion uses a more inelastic mesh with higher strength, while the upper portion uses a more elastic mesh, allowing each segment to fulfill its specific functional requirement.

Inventive Principle:
Principle #1Segmentation

2Strength

If the lower portion has high elasticity for support, then support strength is improved, but comfort and natural appearance at the upper portion deteriorate

Engineering Contradiction:
Improvesupport strengthVSAvoidcomfort and natural appearance
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

Different portions of the mesh structure have different elastin content to provide locally optimized properties. The lower portion (20-40% elastin) provides high support strength, while the upper portion (5-15% elastin) provides comfort and natural appearance, resolving the contradiction between strength and ease of operation.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If biodegradable material is used, then body compatibility is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvebody compatibilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The elastin content parameter is varied across different portions of the mesh structure. By controlling the elastin concentration (5-40% range) during manufacturing, the device achieves both biodegradability for body compatibility and differentiated mechanical properties, resolving the contradiction between material safety and manufacturing complexity.

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

The device provides enhanced support and comfort for reconstructed breasts by distributing mechanical properties optimally, promoting integration with existing tissue and a natural appearance, while being biodegradable for body compatibility.

Implementation Method 1

The mesh structure can be made from non-biodegradable or preferably biodegradable polymeric material

Methodology Applied
Scientific EffectHydrolysis: Hydrolysis

Implementation Method 2

prefably biodegradable polymeric material, allowing for varying pore sizes and fiber density

Methodology Applied
Scientific EffectBiodegradation: Decomposition (biological)

Data Source

PatentEP2915505B1Support device used in medical breast reconstruction
Publication Date: 2018.01.10 NOVUS SCI
  • EP2915505B1 patent drawingFigure 1a~3b

AI summary

A medical support device, comprising a three-dimensional mesh structure for supporting a breast implant and/or tissue, wherein the three-dimensional mesh structure comprises at least a first portion, which has a first value of a specific mechanical property, and a second portion, which has a second value of said specific mechanical property, which second value of said specific mechanical property is different from the first value of said mechanical property.