Composite Tissue Grafts With 3D Matrix for Faster Regeneration
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Solution Overview
Problem
Current wound healing technologies lack effective methods to promote the integration of growth factors and cellular components necessary for optimal tissue repair and regeneration, particularly in complex tissue environments such as bone and soft tissues.
Innovation Solution
A combination of a three-dimensional carrier matrix, growth factor composition, and cell culture composition is developed to enhance tissue repair and regeneration by providing a scaffold for cellular growth and targeted delivery of growth factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a three-dimensional carrier matrix with growth factors and cells is used, then tissue regeneration effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functional components (carrier matrix, growth factors, and cells) into a single integrated graft structure. The carrier matrix serves as both structural support and delivery vehicle for growth factors, while also providing a scaffold for cell attachment and proliferation. This merging of functions resolves the contradiction by achieving enhanced tissue regeneration through integration rather than through separate complex components.
Solution Approach 2:
The graft utilizes composite material construction where a biocompatible carrier matrix (such as collagen, gelatin, or synthetic polymers) is combined with bioactive growth factors and living cells. This composite approach allows the graft to simultaneously provide structural integrity, controlled growth factor release, and cellular regeneration capabilities, thereby improving tissue regeneration effectiveness without requiring overly complex device architecture.
2Productivity
If growth factors are targeted for delivery to wound site, then wound healing speed is improved, but manufacturing precision requirements increase
Solution Approach 1:
The growth factors are pre-loaded or pre-attached to the carrier matrix during the graft manufacturing process, establishing a reservoir of bioactive molecules ready for controlled release. This preliminary action allows the growth factors to be delivered in a targeted manner to the wound site as the graft is applied, accelerating wound healing without requiring complex precision delivery mechanisms during the actual treatment application.
Solution Approach 2:
The carrier matrix acts as an intermediary vehicle that carries and controls the release of growth factors to the wound site. Rather than requiring direct precision delivery of growth factors, the matrix mediates their transport and release, providing controlled delivery through its structural properties and interaction with the growth factors. This intermediary approach simplifies the manufacturing requirements while maintaining targeted delivery effectiveness.
Data Source
AI summary
The described invention provides soft tissue grafts, hard tissue grafts, and composite soft/hard tissue grafts and methods of producing such grafts. The grafts comprise a three-dimensional carrier matrix, a growth factor composition comprising an autologous platelet-rich fibrin and a cell culture composition comprising a culture medium, a population of cells suspended in the culture medium, and cells impregnated on or in a surface of osteoconductive particles.