Catheter Handle Wire Management Cap for Interference-Free Assembly
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Solution Overview
Problem
Conventional catheters face issues with interference between wires and movable components within the handle due to limited space, leading to assembly complexity and reliability concerns, while maintaining a compact size is desirable.
Innovation Solution
Incorporation of a wire management cap within the catheter handle that defines a wire receiver cavity to separate wires from movable components, preventing interference and simplifying assembly by allowing precise positioning without additional attachment means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If wires are positioned within close proximity to movable components in the limited internal cavity space, then the catheter handle maintains a compact size, but interference between wires and movable components occurs during operation
Solution Approach 1:
The internal cavity is segmented into distinct regions using the wire management cap, which creates separate zones for wire routing and movable component operation. This segmentation prevents interference while maintaining compact overall handle dimensions by efficiently organizing components in dedicated spaces.
Solution Approach 2:
The wire management cap acts as an intermediary structure between wires and movable components. It provides a physical barrier and organized pathway that separates the two elements, preventing direct contact and interference while allowing both to coexist in the limited handle space.
2Reliability
If additional components are added to manage wire positioning, then interference between wires and movable components is prevented, but device complexity increases
Solution Approach 1:
The wire management cap performs multiple functions within a single component: it routes wires through designated pathways, positions wires in specific orientations, prevents wire interference with movable components, and maintains structural organization. This multi-functionality reduces the need for multiple separate wire management components, thereby limiting the increase in device complexity.
Solution Approach 2:
The wire management cap combines wire routing, positioning, and protection functions into a single integrated component rather than using separate elements for each function. This merging approach manages wire complexity efficiently while avoiding the cumulative complexity that would result from multiple discrete wire management parts.
3Ease of manufacture
If wires and movable components are positioned in close proximity to maintain compact handle size, then manufacturing cost is reduced, but precise positioning becomes more difficult and assembly more complicated
Solution Approach 1:
The wire management cap incorporates pre-formed routing pathways and positioning features that guide wire placement during assembly. This preliminary structuring of the cap allows wires to be positioned precisely without requiring complex manual alignment procedures, thereby maintaining ease of manufacture while achieving the needed positioning precision.
Solution Approach 2:
The wire management cap provides localized positioning features at specific locations within the handle, such as designated wire channels, retention features, and routing guides. These localized quality enhancements enable precise wire positioning only where needed, without requiring high precision throughout the entire handle assembly process.
Data Source
AI summary
A catheter handle includes a housing extending from a proximal end to a distal end along a longitudinal axis. The housing defines an internal cavity. The catheter handle also includes at least one wire extending through the internal cavity between the proximal end and the distal end. The catheter handle further includes a wire management cap positioned within the internal cavity between a movable component of the catheter handle and one of the proximal and distal ends. The wire management cap defines a wire receiver cavity sized to receive a portion of the wire therein. The wire management cap is oriented such that the portion of the wire in the wire receiver cavity is separated from the movable component by the wire management cap to prevent interference between the movable component and the wire.