Multi-strut ablation and sensing catheter devices and methods

AU2023358773B2Pending Publication Date: 2026-07-09PULSE BIOSCIENCES INC
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Patent Information

Authority / Receiving Office
AU · AU
Patent Type
Applications
Current Assignee / Owner
PULSE BIOSCIENCES INC
Filing Date
2023-10-13
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Existing electrode systems struggle to maintain consistent contact with varying and irregularly shaped treatment areas, particularly in medical applications requiring high-field electric pulses for procedures like vascular treatments and otolaryngological interventions, leading to potential damage to non-targeted regions.

Method used

Development of multi-strut ablation and sensing catheter devices with deployable electrodes that conform to varying and irregular vessel surfaces, utilizing nanosecond pulsed electrical fields to deliver energy selectively and minimize damage to deeper tissues, including adjustable and expandable electrode configurations for precise treatment.

Benefits of technology

The devices enable safe and effective delivery of high-field electric pulses for ablation and apoptosis induction in targeted tissues, minimizing thermal damage and ensuring uniform treatment across irregular anatomical structures without requiring multiple repositioning steps.

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Abstract

Methods and apparatuses are disclosed for providing pulsed electrical treatment (including high voltage, sub-microsecond pulsed electric energy) to tissue, including cardiac tissue. The apparatus may include deployable electrodes that conform to transitional surfaces. These apparatuses may include single or multiple tiers of wire loops forming petal-like electrodes and sensing (e.g., mapping, navigation, etc.) electrodes, including sensing electrodes radially on either side of the electrodes used to apply therapy.
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