Multi-Shell Breast Implant Structure for Natural Texture and Rupture Detection
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Solution Overview
Problem
Existing breast implants require large incisions, have unnatural shapes and textures, and cause mental stress due to rupture concerns.
Innovation Solution
A breast implant comprising multiple shells with varying densities, viscosities, and cohesive forces, allowing for a natural shape and texture mimicking mammary gland and fat tissue, and featuring an inlet for filling materials including silicone and saline solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a breast implant is provided in a round shape with uniform density inside, then the manufacturing process is simple, but the texture appears unnatural and patient satisfaction is reduced
Solution Approach 1:
The breast implant is divided into multiple regions with different filling materials: the central region contains a first filling material with higher density and viscosity to mimic mammary gland tissue, while the peripheral region contains a second filling material with lower density to mimic fat tissue. This local differentiation creates a natural breast shape and texture that varies by region, resolving the contradiction between manufacturing simplicity and natural appearance.
2Ease of operation
If a large incision is made to insert the breast implant, then the implant can be fully inserted, but the incision scar size increases and patient appearance satisfaction is reduced
Solution Approach 1:
The breast implant is designed as a nested structure with multiple shells: an inner shell containing the first filling material and an outer shell containing the second filling material. This segmentation allows the implant to be inserted through a smaller incision while maintaining the ability to provide both high-density central support and low-density peripheral volume, thus reducing incision size while ensuring complete implantation.
3Device complexity
If a single-shell breast implant is used, then the structure is simple, but patients experience mental stress about rupture and lack of rupture detection capability
Solution Approach 1:
The breast implant employs a nested dual-shell structure where the inner shell containing the first filling material is placed inside the outer shell containing the second filling material. This nesting provides multiple barriers against rupture and enables rupture detection: if the inner shell ruptures, the saline-based first filling material leaks into the outer shell's cohesive second filling material, creating a detectable change in texture and shape that alerts patients to the rupture without causing severe harm.
4Shape
If filling materials with different densities are used to mimic natural breast tissue, then the texture becomes more natural, but the manufacturing precision requirements increase
Solution Approach 1:
The invention utilizes significant differences in physical parameters between the two filling materials to achieve natural breast texture. The first filling material has high density and viscosity (saline-based) to mimic mammary gland tissue, while the second filling material has low density and high cohesiveness to mimic fat tissue. These parameter changes are intentionally designed and controlled during manufacturing, allowing for reproducible natural appearance without requiring excessive precision, as the materials' inherent properties provide the differentiation.
Data Source
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AI summary
A breast implant of the present disclosure includes: a first shell having an inner space in which a first filling material is accommodated; a second shell surrounding the first shell and having an inner space in which a second filling material is accommodated; a third shell surrounding the second shell and having an inner space in which a third filling material is accommodated; and an inlet providing a space through which the first filling material, the second filling material, and the third filling material are injected into the first shell, the second shell, and the third shell, respectively.