Detection and visualization of bubbles formed during medical procedures using Schlieren imaging.

The system addresses bubble formation in catheter procedures by using Schlieren imaging to visualize and prevent microbubbles, enhancing catheter quality and patient safety through improved inspection methods.

JP7864541B2Active Publication Date: 2026-05-25BIOSENSE WEBSTER (ISRAEL) LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
BIOSENSE WEBSTER (ISRAEL) LTD
Filing Date
2022-04-22
Publication Date
2026-05-25

AI Technical Summary

Technical Problem

Existing medical procedures, particularly catheter-based treatments like RF ablation and irreversible electroporation, face challenges in preventing the formation of bubbles, especially microbubbles, which can lead to severe complications such as ischemic stroke due to their transport in the bloodstream.

Method used

A system comprising a fluid vessel, pulse generator, Schlieren imaging assembly, and processor is used to visualize and detect bubbles formed during catheter procedures, employing Schlieren imaging techniques to acquire and process images of bubbles in a transparent fluid, generating both 2D and 3D images to assess catheter performance.

Benefits of technology

The system enhances catheter quality and patient safety by effectively detecting and preventing bubble formation, improving the inspection process during manufacturing and development, thereby reducing the risk of complications.

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Abstract

To detect bubbles formed in a medical procedure.SOLUTION: A system for visualizing one or more bubbles formed by a catheter includes a fluid container, a pulse generator, a schlieren imaging assembly, and a processor. The fluid container is configured to (i) contain a fluid, and (ii) receive, in the fluid, the catheter having one or more electrodes. The pulse generator is configured to apply one or more pulses to at least one of the electrodes. The schlieren imaging assembly is configured to acquire schlieren images of the bubbles occurring in the fluid when applying the one or more pulses, and the processor is configured to visualize the bubbles using the schlieren images.SELECTED DRAWING: Figure 1
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