Vessel dilation estimation for intravascular balloon catheter

EP4746953A1Pending Publication Date: 2026-05-27KONINKLIJKE PHILIPS NV
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
KONINKLIJKE PHILIPS NV
Filing Date
2024-07-08
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

Existing intravascular balloon catheter technologies struggle to effectively dilate vessels at calcified vascular stenoses due to the stiff mineral nature of calcifications, which can lead to balloon rupture under high pressure.

Method used

A vessel compliance estimation system that includes an ultrasonic endoflator attached to an intravascular balloon catheter, which slowly expands the balloon to contact the vessel walls and then generates a hydraulic shock to fracture calcifications. The system uses sensors to measure pressure and volume, and a processor calculates compliance, allowing for real-time feedback on calcification fracturing.

Benefits of technology

The system enables accurate detection and quantification of calcified stenosis fracturing, ensuring safe vessel dilation and stenting by minimizing the risk of balloon rupture and providing real-time feedback on treatment progress.

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Abstract

An apparatus includes an endoflator configured for fluid communication with an intravascular catheter and to inflate a balloon of the intravascular catheter with a fluid. At least one of the intravascular catheter or the endoflator includes a sensor configured to provide an output. The apparatus also includes a processor configured to compute a compliance of the balloon based on the output of the sensor, and to provide, to a display, a visual representation of the compliance of the balloon.
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