Steerable Multi-Linked Device With Segmented Working Ports
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Solution Overview
Problem
Existing steerable multi-linked devices typically have a center passage that allows only one device to pass through, limiting the ability to transmit multiple tools or instruments, such as cameras, fiber optics, or surgical tools, from one end to the other.
Innovation Solution
A steerable multi-linked device comprising two multi-linked mechanisms with grooves that align to create multiple working ports along its length, allowing for the transmission of multiple devices, and capable of operating in both rigid and limp modes for navigation through complex paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a center passage is configured to allow only one device to pass through, then the device structure remains simple, but the ability to transmit multiple tools or instruments is limited
Solution Approach 1:
The center passage is segmented into multiple working ports (first working port and second working port) that can be independently utilized. Each working port can accommodate different devices simultaneously, transforming a single-channel structure into a multi-channel system without requiring complete structural redesign
Solution Approach 2:
The patent transitions from a single linear passage to a multi-dimensional port configuration by creating multiple working ports at different positions and orientations along the device shaft, enabling simultaneous passage of multiple devices through spatial differentiation
2Adaptability or versatility
If multiple working ports are created along the device length, then the ability to pass multiple devices is improved, but the alignment precision of grooves must be highly accurate
Solution Approach 1:
The grooves are pre-formed as integral features of the link components during manufacturing, establishing precise alignment paths before final assembly. This preliminary structuring of groove positions and orientations ensures that when links are connected, the working ports are automatically aligned without requiring post-assembly adjustments
Solution Approach 2:
The groove structures across different links are designed with uniform dimensions, spacing, and orientation patterns. This homogeneity in groove configuration throughout the device ensures consistent alignment characteristics and simplifies manufacturing by using standardized components
3Stability of the object's composition
If the device operates in rigid mode for structural stability, then navigation through tight curvatures becomes difficult, but flexibility for navigating complex paths is reduced
Solution Approach 1:
The device incorporates a dynamic mode-switching capability where the structural rigidity can be changed from rigid to flexible state. This allows the device to adapt its mechanical properties based on operational requirements - maintaining stability when needed and achieving flexibility for navigation when required
Data Source
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AI summary
A steerable multi-linked device. The device includes a first multi-linked mechanism and a second multi-linked mechanism. The first mechanism defines a first plurality of grooves. The second mechanism defines a second plurality of grooves. The first and second pluralities of grooves cooperate to define at least two working ports along a length of the device. At least one of the first and second mechanisms are steerable.