Tissue-Derived Volumizing Graft With Cavity for Component Integration
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Solution Overview
Problem
Current grafts and implants used in plastic and reconstructive surgeries face challenges such as efficacy, longevity, and side effects, and there is a need for improved solutions that can effectively replace or augment tissue mass and volume.
Innovation Solution
The development of tissue-derived volumizing grafts with a sheet-shaped body that includes a cavity for receiving additional components, made from biocompatible materials that can be reshaped to fit specific surgical needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional grafts and implants are used for tissue replacement or augmentation, then surgical procedures can be performed, but efficacy, longevity, and side effects remain problematic
Solution Approach 1:
The graft combines a tissue-derived matrix (natural material) with additional components that can be synthetic or natural materials, creating a composite structure that leverages the biocompatibility and regenerative properties of natural tissues while incorporating the structural advantages of synthetic materials. This composite approach addresses the limitations of single-material grafts by integrating multiple material properties.
Solution Approach 2:
The invention allows modification of physical and chemical parameters of the graft, including porosity, density, and compositional ratios of different materials. These parameter changes enable optimization of the graft's biological integration rate, mechanical strength, and degradation profile to improve efficacy and reduce adverse reactions.
2Adaptability or versatility
If grafts are designed with fixed structures, then manufacturing is simplified, but adaptability to specific surgical needs is reduced
Solution Approach 1:
The graft is divided into distinct functional zones or layers, each with specific properties optimized for different surgical requirements. The tissue-derived matrix forms a base structure that can be segmented into regions with varying porosity, cell density, or material composition, allowing customization for specific anatomical locations and surgical indications while maintaining overall structural integrity.
Solution Approach 2:
The graft incorporates dynamic characteristics through its tissue-derived matrix that can remodel and adapt in vivo. The structure is designed to evolve over time, with initial mechanical support gradually transitioning to biologically integrated tissue regeneration. This dynamic adaptation allows the graft to respond to varying surgical needs without requiring complex pre-customization.
3Strength
If grafts use non-biocompatible materials, then structural integrity is maintained, but biological integration and tissue regeneration are hindered
Solution Approach 1:
The graft combines a tissue-derived matrix (natural material) with additional components that can be synthetic or natural materials, creating a composite structure that leverages the biocompatibility and regenerative properties of natural tissues while incorporating the structural advantages of synthetic materials. This composite approach addresses the limitations of single-material grafts by integrating multiple material properties.
Solution Approach 2:
The tissue-derived matrix is processed to create a porous structure with controlled pore size and distribution. This porosity allows for cell infiltration, vascular ingrowth, and nutrient diffusion, thereby enhancing biological integration while maintaining structural integrity. The porous architecture provides mechanical strength through the natural tissue framework while facilitating biological regeneration.
Data Source
AI summary
Volumizing grafts useful for plastic and reconstructive surgery, especially those involving replacement or enhancement of tissue mass and volume. The volumizing graft includes a sheet shaped body made of a biocompatible material which forms, or is capable of forming, a shape having a cavity for receiving, holding, containing, etc., one or more additional components. Either or both of the sheet shaped body and additional components may be bioactive. Either or both of the sheet shaped body and additional components may comprise tissue derived matrices. The sheet shaped body of the volumizing graft enables the additional components to be positioned, oriented, affixed, or some combination thereof, in or proximate to a treatment site, either permanently or temporarily. This may allow subsequent removal, repositioning, replacement, supplementing, or a combination thereof, of the additional components, at the treatment site.