Endovascular Device Tip Counterbore Nesting
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Solution Overview
Problem
Existing endovascular devices face challenges in incorporating a tip without altering the inner diameter of the distal end, which can hinder guidewire passage and increase the device profile.
Innovation Solution
A method involving counterboring the distal end of a tubular device to create a larger internal diameter, positioning a tip with flanges to secure it in place, and using locking members for mechanical attachment, maintaining a constant inner diameter for guidewire passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tip is incorporated into the distal end of an endovascular device by traditional methods, then the tip can be securely attached, but the inner diameter of the distal end is altered, hindering guidewire passage and increasing device profile
Solution Approach 1:
The tip is nested within a counterbore cavity created in the distal end of the tubular device. The counterbore provides an enlarged internal diameter space that accommodates the tip's flange, allowing the tip to be securely attached while maintaining the original outer diameter profile and preserving smooth guidewire passage through the device.
Solution Approach 2:
The solution moves from a linear attachment method to a three-dimensional counterbore cavity. By creating a counterbore (a stepped enlargement of the bore), the tip can be positioned in a different dimensional space (within the counterbore cavity) rather than extending the linear profile, thus securing the tip without altering the outer diameter or hindering guidewire passage.
2Adaptability or versatility
If a tip is incorporated into the distal end of an endovascular device, then the device functionality is enhanced, but the overall profile of the device increases
Solution Approach 1:
The tip is nested within the counterbore cavity of the distal end, allowing the tip to be incorporated without extending the overall length or profile of the device. The counterbore provides internal space for the tip's flange, enabling functional enhancement while maintaining a compact device profile suitable for vascular navigation.
3Ease of manufacture
If the inner diameter of the distal end is increased to accommodate a tip, then the tip can be attached, but the original bore dimensions are altered, affecting fluid flow and guidewire passage
Solution Approach 1:
The counterbore creates a localized enlargement of the bore only at the distal end where the tip is to be attached. The main body of the tubular device retains its original bore dimensions, ensuring consistent fluid flow characteristics and guidewire passage throughout the majority of the device length, while providing a specialized attachment zone at the distal end.
Data Source
AI summary
An endovascular device tip assembly and method of making the same, incorporating a tip device with a first and second flange, usable with catheters and other suitable endovascular devices is provided. The tip assembly incorporates a tip device by providing a counterbore within a primary bore of a tubular end portion of an endovascular device. The tip device is fitted securely within the counterbore by placing the first flange within the counterbore and the second flange on the outside of the end portion.