Guide Wire Groove Segmentation for Flexibility and Torque
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Solution Overview
Problem
Conventional guide wires face challenges in achieving both flexibility and torque transmission simultaneously.
Innovation Solution
A guide wire design featuring helical or circumferential grooves with bridge portions that are not continuous or have a groove depth of ½ or less of the maximum depth, strategically positioned to enhance flexibility and torque transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If continuous deep grooves are formed on the wire surface, then flexibility is improved, but torque transmission deteriorates
Solution Approach 1:
The continuous groove is segmented into multiple discrete groove portions along the longitudinal direction of the wire. Each groove portion has a limited length and is separated from adjacent groove portions by interval portions without grooves. This segmentation allows the wire to achieve flexibility through the presence of grooves while maintaining torque transmission capability through the interrupting interval portions that preserve structural continuity.
Solution Approach 2:
Different portions of the wire surface have different groove characteristics. The groove portions provide localized flexibility enhancement, while the interval portions maintain structural integrity for torque transmission. This creates a non-uniform distribution of groove depth and presence along the wire length, optimizing both flexibility and torque transmission in different regions.
2Adaptability or versatility
If groove depth is increased to enhance flexibility, then flexibility is improved, but torque transmission deteriorates
Solution Approach 1:
Instead of forming deep continuous grooves along the entire wire length, the invention applies grooves partially along specific segments (groove portions) with controlled depth. The groove depth is sufficient to enhance flexibility locally but limited in extent to prevent excessive weakening of torque transmission. The interval portions compensate for the localized flexibility enhancement by maintaining full structural integrity.
3Adaptability or versatility
If groove width is increased to enhance flexibility, then flexibility is improved, but torque transmission deteriorates
Solution Approach 1:
The groove structure is segmented into discrete groove portions with controlled width along the longitudinal direction. Each groove portion has a defined width that provides sufficient flexibility enhancement, while the separation between groove portions by interval portions prevents excessive material removal that would compromise torque transmission. The segmented approach allows optimization of groove width within each portion without affecting the entire wire structure.
Data Source
AI summary
Provided is a guide wire including a wire extending in a longitudinal direction of the guide wire, in which the wire has a groove portion including helical grooves formed on an outer circumference of the wire along a helical path, each of the helical grooves has one or more bridge portions per circumference, and the bridge portion is a portion where a groove is not continuous or a groove depth is ½ or less of a maximum depth per circumference.