Segmented Augmentation Cone for Joint Prosthesis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing augmentation devices for joint endoprosthesis surgery are limited by their inability to be easily adjusted in size without deformation, making them difficult to fit into patient-specific anatomical conditions and limiting their adaptability during surgery.
Innovation Solution
The augmentation device is composed of a plurality of interconnected annular cone segments with decreasing outer diameters from the proximal to the distal end, allowing for non-destructive separation and reconnection of the segments to achieve an adaptable cone size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the augmentation device uses a single-piece cone structure, then the device is simple in construction, but it cannot be adjusted in size and is difficult to adapt to patient-specific anatomical conditions
Solution Approach 1:
The cone is divided into multiple separable cone segments that can be connected and disconnected from one another. This segmentation allows the augmentation device to be adjusted in size by adding or removing segments while maintaining a relatively simple overall structure. Each segment maintains the conical shape and can be independently manufactured, then assembled to create the desired final size.
2Adaptability or versatility
If the augmentation device uses bending joints to adjust size, then the device can be compressed to reduce outer diameter, but the device becomes deformed with kinks that make it difficult to fit into bone
Solution Approach 1:
Instead of using bending joints that cause deformation, the cone is segmented into separate rigid sections. To adjust size, entire segments are added or removed rather than bending the cone. This maintains the smooth conical shape and prevents kinks, allowing the device to be easily inserted into bone channels while still providing size adaptability.
3Adaptability or versatility
If the augmentation device is made with fixed size, then the manufacturing process is simple, but it cannot be adapted to different anatomical conditions without requiring multiple different devices
Solution Approach 1:
The cone is manufactured as multiple standardized segments that can be assembled in different configurations. This allows a single manufacturing process to produce modular components that can be combined to create devices of various sizes, reducing the need to manufacture entirely different devices for different anatomical conditions.
Solution Approach 2:
The standardized cone segments serve multiple functions: they can be used individually or combined in different numbers and arrangements to create augmentation devices of various sizes. This universal segment design allows one set of manufactured components to satisfy multiple clinical needs, reducing overall manufacturing complexity compared to producing specialized devices for each size requirement.
4Adaptability or versatility
If the augmentation device segments are permanently fused, then the structure is stable and strong, but the device cannot be adjusted in size during surgery
Solution Approach 1:
The connection between cone segments is designed to be dynamic rather than fixed. The segments can be connected during implantation to form a stable structure, and this connection can be maintained throughout the procedure. The separable design allows for intraoperative adjustment by disconnecting and reconnecting segments as needed, while maintaining sufficient structural strength when connected.
Data Source
AI summary
One aspect relates to an augmentation device comprising an annular cone surrounding a channel extending through the cone from a proximal cone end to a distal cone end of the cone. One aspect further relates to an augmentation system comprising such an augmentation device and an applicator, as well as an implantation method of an augmentation device using such an augmentation system.