Biosense Webster (israel) Ltd.

Biosense Webster, Inc.

Kelvin M Chuu

Jeffrey William Schultz

Jeffrey L Clark

Daniele Ghidoli

John Hardy Ashton

Meir Bar-Tal

Mark Stanley

Ryan A Hoitink

Avri Hazan

Abraham Berger

Maria Duarte

Mark T Stanley

Maria J Duarte

A catheter adapted for use in the pericardial sac to sense temperature of an ablation site and surrounding heart tissue within one of the heart's ventricles or atria via proximity with the epicardium in the pericardial sac, includes a catheter body and a temperature sensing array adapted for placement on and contact with the epicardium. The temperature sensing array may comprise a 2-D body, with a surface adapted to contact an area on the epicardial tissue or in pericardial space. The array may also comprise at least one finger member, each having at least one temperature sensing location. The array may further comprise an elongated body having a generally circular configuration, a distal portion of which is movable to a spirally inward position.

Pericardial catheter with temperature sensing array

Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. A sensor array formed on a flexible substrate conforms to an inner surface of the electrode and an insert disposed within the interior space engages the sensor array to position sensors of the sensor array in desired locations relative to the electrode. A support seals the proximal end of the electrode and engages the insert. The plurality of sensors may be used to measure electrical and thermal characteristics surrounding the electrode and may help assess contact between the electrode and tissue and/or determine movement of the electrode during ablation.

Irrigated ablation catheter with sensor array

Systems and methods are disclosed for performing an ablation procedure by obtaining a signal from an acoustic sensor used to detect occurrence of a steam pop and adjust the ablation in response to the steam pop detection.

RF ablation with acoustic feedback

Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. An insert disposed within the electrode has protrusions that mate with orifices in the shell of the electrode. Each protrusion has a port communicating with at least one interior lumen in the insert and a sensor is disposed in each port. A support seals the proximal end of the electrode and engages the insert. The plurality of sensors may be used to measure electrical and thermal characteristics surrounding the electrode and may help assess contact between the electrode and tissue and/or determine movement of the electrode during ablation.

Irrigated ablation catheter with multiple sensors

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Los Angeles, CA, United States of America

Kelvin M Chuu