Bone Delivery System with Segmented Covering for Custom Implants
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Solution Overview
Problem
Conventional bone grafts and implants lack customization and conformability, leading to inadequate mechanical support and integration with bone defects, as they are often oversized or undersized, causing uneven distribution of osteoconductive and osteoinductive materials and potential tissue compression.
Innovation Solution
A medical implant delivery system with a customizable covering that includes separation-assist lines and biocompatible materials, allowing for adjustable size and compartmentalization to match specific bone defects, facilitating controlled release of substances like growth factors and antimicrobial agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional monolithic or particulated bone grafts in carriers are used, then bone grafting can be performed, but the implants cannot be customized in size or shape to match the specific bone defect
Solution Approach 1:
The covering is divided into multiple compartments separated by partition walls, allowing the bone graft material to be distributed in controlled sections. This segmentation enables customization of the implant to match irregular bone defect shapes while maintaining structural organization and facilitating targeted delivery of osteoconductive and osteoinductive materials.
2Shape
If substantially solid bone grafts are used for implantation, then structural integrity is maintained, but the implants do not conform to irregular implant sites
Solution Approach 1:
Different regions of the covering are designed with different properties - the partition walls provide structural strength and definition, while the compartments contain the bone graft material that conforms to the implant site. This local differentiation allows the implant to simultaneously maintain mechanical integrity and adapt to irregular shapes.
3Adaptability or versatility
If bone substitute materials are used to fill oddly shaped bone defects, then the defects can be filled, but the materials are not well suited for wrapping or resurfacing bone
Solution Approach 1:
The covering structure serves multiple functions: it contains and shapes the bone graft material for filling defects, wraps around bone surfaces for resurfacing, and provides structural definition through partition walls. This multi-functionality allows a single implant design to address various bone repair needs including defect filling, wrapping, and resurfacing.
4Manufacturing precision
If conventional bone grafts are used without compartmentalization, then implantation is simple, but the distribution of osteoconductive and osteoinductive materials is uneven
Solution Approach 1:
The covering is divided into multiple compartments separated by partition walls, allowing the bone graft material to be distributed in controlled sections. This segmentation enables customization of the implant to match irregular bone defect shapes while maintaining structural organization and facilitating targeted delivery of osteoconductive and osteoinductive materials.
Data Source
AI summary
A covering for delivering a therapeutic agent to a surgical site is provided. The covering may include a single or multi-compartment structure configured to at least partially retain the therapeutic agent until the covering is placed at a surgical site. Upon placement, the covering may facilitate transfer of the therapeutic agent to the surgical site. In some embodiments, the covering comprises an antimicrobial agent, a hemostatic agent, an anti-inflammatory agent, and/or a growth factor.