Segmented Wire Augmentation Material for Bone Cavity Adaptation
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Solution Overview
Problem
Current augmentation materials for joint operations are not form-stable, making it difficult to adapt to the patient's anatomical geometry, and the formation of a freely shaped porous body is time-consuming and risky, with potential for accidental particle dispersal and health complications.
Innovation Solution
A wire-based augmentation material with radially extending connecting elements that can be shaped and connected to form a stable porous body without chemical curing, allowing for easy adaptation to cavity contours and infiltration with bone cement, while being processable with standard surgical tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If particulate augmentation material is used to form a freely shaped porous body, then the material can be adapted to cavity contours, but the process is time-consuming and carries safety risks from particle dispersal
Solution Approach 1:
The augmentation material is segmented into multiple groups of connecting elements that can be independently positioned and connected. Each group can be adapted to specific cavity contours while maintaining overall structural integrity, eliminating the need to manually form the entire structure from loose particles.
Solution Approach 2:
The wire acts as an intermediary element that connects the groups of connecting elements. This wire-based structure provides a stable framework that can be adapted to cavity contours without the safety risks and time consumption associated with handling loose particulate material.
2Ease of manufacture
If particulate augmentation material is pressed together to form a porous body, then the material can be shaped, but loose particles may inadvertently reach unwanted locations causing health complications
Solution Approach 1:
The material is divided into discrete groups of connecting elements attached to a wire, creating a contained structure that prevents particle dispersal while still allowing the structure to be shaped and adapted to the desired form.
Solution Approach 2:
The invention combines wire and connecting elements into a composite structure that maintains structural integrity during handling and shaping. This composite form eliminates the safety risks associated with loose particulate material while preserving the ability to create freely shaped porous bodies.
3Stability of the object's composition
If conventional augmentation material is used, then the material provides volume stability, but the material is not dimensionally stable and difficult to adapt to patient anatomy
Solution Approach 1:
The wire-based structure with connecting elements provides a dynamic framework that can be adapted to various anatomical configurations. The structure maintains volume stability while allowing dimensional adaptation to patient-specific anatomy through the arrangement and connection of the element groups.
4Adaptability or versatility
If freely shaped porous body is formed from particulate material, then the material can be adapted to cavity shape, but the process is complex and time-consuming
Solution Approach 1:
The segmented structure of multiple connecting element groups on a wire framework allows for rapid adaptation to cavity shapes without the time-consuming process of manually forming structures from loose particles. Each group can be positioned and connected efficiently during surgery.
Solution Approach 2:
The wire-based intermediary structure provides a pre-formed framework that accelerates the adaptation process. This framework serves as a stable base that can be quickly configured to match cavity shapes, significantly improving surgical efficiency compared to working with particulate material.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick and easy shaping of the augmentation material to match cavity contours, forming a mechanically stable porous body that supports bone ingrowth and integration with bone cement, reducing the risk of complications and improving surgical efficiency.
Implementation Method 1
the connecting elements are designed such that when a first group from the plurality of groups is pressed against another group from the plurality of groups, the connecting elements of the two groups can be connected to one another in a form-fitting and/or force-fitting manner
Data Source
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AI summary
Augmentation material (100) comprising a wire (200) and in axial orientation along the wire a plurality of groups (350) of connecting elements (300) extending radially from the wire and axially adjacent, wherein the connecting elements are designed such that when a first group from the plurality of groups is pressed together against a further group from the plurality of groups, the connecting elements of the two groups can be connected to each other in a form-fit and/or force-fit manner.