Adipose Hydrogel Composite for Soft Tissue Integration
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Solution Overview
Problem
Current soft tissue replacement methods face challenges with artificial fillers due to lack of metabolic activity, migration, and temporary effects, while transplanted tissue methods suffer from tissue volume loss and poor survival rates due to inadequate blood supply.
Innovation Solution
A composition comprising adipose tissue, a hydrogel material, and specific compounds that promote new blood vessel formation, such as FGF-2 and VEGF, to enhance the survival and integration of transplanted tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If artificial or alloplastic fillers are used for soft tissue replacement, then the procedure is simple and provides immediate volume, but the material lacks metabolic activity, does not integrate with surrounding tissue, and risks migration and extrusion
Solution Approach 1:
The patent uses composite materials by combining adipose tissue (biological component) with hydrogel (synthetic component) to create a hybrid filler that provides both immediate volume and metabolic activity. The hydrogel serves as a scaffold that supports adipose tissue cells while providing structural volume, thereby integrating the benefits of both artificial and biological materials.
Solution Approach 2:
The hydrogel acts as an intermediary between the artificial filler and living tissue. It provides a biocompatible matrix that facilitates integration with surrounding tissue while maintaining the structural properties needed for volume replacement. The hydrogel scaffold enables adipose tissue cells to survive and integrate, bridging the gap between synthetic and biological materials.
2Duration of action of stationary object
If artificial fillers are used for long-term effects, then the duration of action is extended, but a foreign body response occurs resulting in fibrous capsule formation that limits performance and causes pain
Solution Approach 1:
The patent changes the fundamental parameter of the filler material from non-biological to biological by using adipose tissue. This parameter change transforms the material from inert to metabolically active, allowing it to be naturally integrated and resorbed by the body over time without triggering chronic foreign body responses, while still providing long-term effects through the combination of hydrogel persistence and adipose tissue survival.
3Reliability
If transplanted tissue is used for soft tissue replacement, then metabolic activity and integration are improved, but tissue volume loss occurs due to poor survival and lack of vascular formation
Solution Approach 1:
The hydrogel is designed as a porous scaffold material that facilitates vascular ingrowth and nutrient diffusion. The porous structure allows blood vessels to penetrate into the transplanted adipose tissue, establishing the vascular supply needed for tissue survival and preventing volume loss from necrosis and resorption, while maintaining metabolic activity and integration benefits.
4Manufacturing precision
If multiple transplantation procedures are performed to compensate for tissue volume loss, then the desired aesthetic effect is achieved, but the time and cost increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-preparing adipose tissue in a controlled environment with optimized conditions for survival (including vascular pre-formation and protective formulations) before transplantation. This preliminary preparation ensures higher survival rates upon implantation, reducing the need for repeat procedures to compensate for volume loss, thereby saving time and reducing the number of interventions required.
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 solution increases the survival rate of transplanted tissue by establishing an adequate blood supply, reducing tissue volume loss, and improving the long-term survival and integration of soft tissue replacements.
Implementation Method 1
The growth of new blood vessels and associated vasculature or repair or remodeling of existing blood vessels and associated vasculature provides collateral circulation in and around an ischemic area, improves blood flow, and alleviates the symptoms caused by the ischemia.
Implementation Method 2
comprising adipose tissue, a hydrogel material, and a compound having the structure of formula I
Data Source
AI summary
The invention relates to compositions comprising a hydrogel material that comprises a glycosaminoglycan polymer, adipose tissue and a compound of the structurewhere X1 and X5 are independently CH or N; X7 is NH, O or S; X8 and X9 are independently CH or N; R13 is an optionally substituted aryl or optionally substituted heteroaryl and R14 is C1-6 alkyl, optionally substituted aryl or optionally substituted heteroaryl. The composition is administered to a site of a soft tissue condition including those of breast tissue. The hydrogel material can be porous or of solid particles. The glycosaminoglycan polymer can be a hyaluronan polymer.