Bone Delivery Filling System with Funnel Container and Plunger
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Solution Overview
Problem
Current demineralized bone matrix (DBM) delivery systems have limitations, including rapid degradation of active factors, which reduces their osteogenic activity within a short time after implantation, and require additional bone graft materials to be placed separately, limiting their effectiveness in bone repair.
Innovation Solution
A filling system comprising a funnel-shaped container and a plunger for efficiently delivering a mixture of DBM particles/fibers with other bone graft materials, such as autograft, directly into a biodegradable covering at a bone defect site, allowing for customizable and consistent bone graft material distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DBM is delivered using conventional separate placement methods, then additional bone graft materials can be added, but the osteogenic activity degrades rapidly within 24 hours
Solution Approach 1:
The patent combines multiple bone graft materials (DBM particles/fibers and autograft) into a single mixture that is delivered together through one filling system, rather than placing them separately. This merging allows the materials to work synergistically while maintaining osteogenic activity for a longer period, resolving the contradiction between versatility and duration of action.
Solution Approach 2:
The invention uses a composite material approach by creating a mixture of DBM particles/fibers with other bone graft materials such as autograft. This composite formulation maintains osteogenic activity over time while incorporating multiple materials, addressing both the versatility and duration requirements.
2Reliability
If bone graft material is delivered as a solid monolithic implant, then the implant is complete and stable, but it does not conform to the implant site and lacks customization ability
Solution Approach 1:
The patent employs a dynamic delivery system where the bone graft material is contained in a covering that can be filled and sealed. This allows the implant to adapt to different implant site geometries while maintaining stability, resolving the contradiction between reliability and adaptability.
Solution Approach 2:
The filling system is divided into separate components (funnel-shaped container, plunger, covering) that can be assembled and filled in different configurations. This segmentation allows customization for different implant sites while ensuring stable delivery, addressing both reliability and adaptability requirements.
3Ease of manufacture
If DBM active factors are delivered without protective measures, then the delivery process is simple, but the active factors are rapidly degraded and osteogenic activity is lost
Solution Approach 1:
The patent uses a covering (such as a mesh bag or membrane) to encapsulate the DBM particles/fibers and protect the active factors during delivery and implantation. This flexible shell approach maintains simplicity in the delivery process while preserving osteogenic activity, resolving the contradiction between ease of manufacture and reliability.
Data Source
AI summary
A filling system for delivery of at least one substance to a covering is provided. The filling system comprises at least a funnel shaped container and a plunger. The funnel shaped container includes a scoop portion connected to a hollow barrel. The barrel is configured for insertion into the covering, the plunger adapted for pushing the at least one substance down the hollow barrel into the covering. The filling system can also include a spatula. A kit including a funnel shaped container, a plunger adapted to push a substance down the barrel of the funnel shaped container, a spatula, a retainer for keeping the kit elements in place and trays for protecting them from the environment are also provided. A method of use utilizing the filling system is also provided.