Osteoconductive Matrix Bone Repair Implants
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Solution Overview
Problem
Current surgical implants for bone repair lack effective integration and regeneration capabilities due to inadequate osteoconductive and osteoinductive properties, limiting their ability to promote bone tissue formation and healing.
Innovation Solution
Development of implantable compositions comprising an osteoconductive matrix, endogenous cells, and osteoinductive factors, such as growth factors and stem cells, which are integrated into a physical matrix to enhance bone repair and regeneration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional surgical implants are used for bone repair, then the implant structure is simple and easy to manufacture, but the osteoconductive and osteoinductive properties are insufficient, limiting bone tissue formation and healing
Solution Approach 1:
The patent employs composite materials by combining osteoconductive matrix (such as demineralized bone matrix), osteoinductive factors (growth factors like BMPs, TGF-β), and endogenous cells (mesenchymal stem cells, osteoblasts) into a unified implant composition. This composite structure provides both structural support and biological activity, resolving the contradiction between simple implant structure and effective bone repair by integrating multiple functional components into a single therapeutic system.
Solution Approach 2:
The invention merges previously separate components (osteoconductive scaffold, osteoinductive growth factors, and osteogenic cells) into a single integrated implant composition. This merging allows the implant to simultaneously provide structural framework, biochemical signals for differentiation, and living cells for tissue formation, thereby enhancing bone repair efficacy without requiring multiple separate procedures or implants.
2Productivity
If implants lack osteoconductive and osteoinductive properties, then the implant design is simple, but the ability to promote bone tissue formation and healing is limited
Solution Approach 1:
The patent applies preliminary action by pre-assembling the implant composition with all necessary components (osteoconductive matrix, growth factors, and cells) in optimal configurations before implantation. The osteoconductive matrix is prepared in advance to provide immediate structural guidance, while growth factors are pre-loaded to deliver biochemical signals at critical early stages of bone healing, accelerating bone tissue formation without requiring complex intraoperative procedures.
Solution Approach 2:
The invention utilizes parameter changes by controlling the concentration, distribution, and release kinetics of growth factors within the implant composition. By optimizing these parameters (such as growth factor dosage, matrix porosity, and cell density), the implant achieves enhanced osteoinductive and osteoconductive properties that significantly accelerate bone tissue formation while maintaining manageable composition complexity through systematic parameter optimization.
Data Source
AI summary
The disclosure provides implants containing a plurality of particles containing at least one population of viable osteogenic cells adherent to and resident in an osteoconductive matrix or at least one viable population of osteogenic cells caused to be in contact with the osteoconductive matrix; methods of fabricating the implants; and use of the implants in bone repair. The implant further contains an osteoinductive component. An example of an osteoinductive component is a demineralized bone matrix in the form of particles or fibers.