Catheter assembly with movable distal tip support

The catheter assembly with a movable distal tip support and defined hooding mechanism addresses buckling and kinking issues, ensuring successful insertion and reduced discomfort for IV catheters, particularly in deeper vein placements.

WO2026106840A1 Publication Date: 2026-05-21BECTON DICKINSON & CO
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Patent Information

Application Number
PCT/US2025/053998
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-11-15
Filing Date
2025-11-04
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing IV catheters face issues with buckling and kinking due to the soft material used, leading to increased insertion force and patient discomfort, especially during deeper vein placements with steeper angles.

Method used

A catheter assembly with a movable distal tip support and a harder material at the distal end, combined with a mechanically defined hooding mechanism, to prevent kinking and ensure successful insertion of softer catheter materials.

Benefits of technology

The solution enhances insertion success, reduces complications, and allows for longer dwelling catheters with softer materials, providing improved comfort and reduced insertion force.

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Abstract

Catheter assemblies vascular access devices using such assemblies are disclosed. The catheter assembly comprises a catheter distal tip support element movably disposed within a catheter lumen and over the introducer needle. The catheter distal tip support element is movable with respect to the catheter and the introducer needle and having a support stepped surface defining a support distal surface configured to contact a shoulder of the catheter and to advance the catheter in distal direction and prevent kinking or buckling of the second material of the catheter as the catheter is advanced into the vasculature of the patient.
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