A tubular member for an intraluminal medical device

The tubular member for guidewires with tailored bending sections and cut-outs addresses buckling issues by providing anisotropic and quasi-isotropic stiffness transitions, ensuring reliable and safe navigation in tortuous lumens.

WO2026125339A1 Publication Date: 2026-06-18ARTIRIA MEDICAL SA
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
ARTIRIA MEDICAL SA
Filing Date
2025-12-09
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Intraluminal medical devices, such as guidewires, lack structural and functional compatibility with actuation mechanisms, leading to buckling and non-elastic deformations during navigation through tortuous lumens, and require a tubular member with optimized transition of deflection behavior for reliable miniaturization and sufficient structural integrity.

⚗Method used

A tubular member for guidewires with distal, proximal, and intermediate bending sections, featuring specific cut-outs to achieve direction-dependent and non-direction-dependent deflection behaviors, ensuring anisotropic and quasi-isotropic stiffness transitions, enhancing structural integrity and preventing buckling.

🎯Benefits of technology

Enables reliable, repeatable, and safe deflection of guidewires in tortuous paths without buckling, reducing material failure and ensuring efficient navigation in narrow endovascular applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a tubular member (101) for a guidewire comprising a distal bending section (2) having distal cut-outs shaped and sized to achieve a distal deflection behaviour, a proximal bending section (4) having proximal cut-outs shaped and sized to achieve a proximal deflection behaviour, and an intermediate bending section (3) between the distal bending section (2) and proximal bending section (4) having intermediate cut-outs. The distal and proximal cut-outs are shaped and sized such that the distal bending section (2) is more flexibly deflectable in at least one direction away from a longitudinal axis (L) of the tubular member (101) than the proximal bending section (4). According to the invention, the intermediate cut-outs are shaped and sized such that a first and a second intermediate deflection behaviour differ from each other at at least two different longitudinal positions of the intermediate bending section (3).
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