Modular Bone Implant System for Complex Defect Replication
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Solution Overview
Problem
Conventional bone implants inadequately address complex bone defects in revision surgery due to limited reproduction of bone morphology and geometry, leading to unfavorable conditions for revision operations and bone loss.
Innovation Solution
A modular bone implant system comprising a load-bearing base body and multiple shaped bodies, allowing for patient-specific anatomy adaptation, stable anchoring, and bone-sparing treatment, with options for in vivo degradable materials to promote osteointegration and reduce bone defect size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional implants are used, then the implant structure is simple and easy to manufacture, but the implant cannot adequately replicate the morphological characteristics of bone defects leading to bone loss
Solution Approach 1:
The implant system is divided into modular components: a basic body and multiple interchangeable shaped bodies. Each shaped body is designed to replicate specific morphological characteristics of bone defects (cylindrical, conical, irregular shapes). This segmentation allows the implant to accurately match complex bone defect geometries while maintaining simple individual component structures that are easy to manufacture.
Solution Approach 2:
The basic body is designed as a universal component that can accommodate multiple different shaped bodies. This multi-functional design allows a single basic body to address various bone defect types (cylindrical defects, conical defects, irregular defects) by simply changing the shaped body attachment, thereby replicating different bone morphologies without requiring multiple specialized implant designs.
2Adaptability or versatility
If bone defect shape is adapted to conventional implant, then the implant can be installed, but additional bone loss occurs creating unfavorable conditions for revision surgery
Solution Approach 1:
Different shaped bodies are designed with specific local geometries (cylindrical, conical, irregular shapes) that match the local morphological characteristics of different bone defect regions. This local quality approach allows the implant to precisely replicate the specific shape of each bone defect without requiring uniform bone removal, thereby adapting to patient-specific bone anatomy while preserving maximum bone tissue.
3Adaptability or versatility
If modular implant system with multiple shaped bodies is used, then patient-specific bone anatomy can be accommodated and bone loss reduced, but the device complexity increases
Solution Approach 1:
The basic body serves as a universal platform that can accommodate multiple different shaped bodies through standardized attachment mechanisms. This universality allows the system to address various patient-specific bone anatomies and defect types using a single basic body design, thereby achieving high adaptability without proportionally increasing overall device complexity.
Data Source
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AI summary
The invention relates to a bone implant system comprising: a base body (10) comprising or consisting of a load-bearing material; and a plurality of shaped bodies (20) and/or a support structure (50), wherein the base body is designed as a hollow body open on both sides in the axial direction; and the shaped bodies are connectable to the base body such that the shaped bodies project radially from the base body; and/or the support structure is connectable to the base body such that the support structure is radially spaced from the base body. The invention further relates to a bone implant.