Physcade, Inc.

Power Spectra, Inc.

Bret A Herscher

Sanjiv Narayan

Andy Edward Denison

Peter J D'Aquanni

Mahmood I Alhusseini

Dylan R Montgomery

Melissa Donovan-Green

Jose Alvarado

David Krawzsenek

Steven D Thompson

Jonathan S Ciulla

A novel catheter is disclosed comprising an electrode array that is capable of switching between a sensing configuration for sensing electrical signals of biological tissue and an ablation configuration for delivery of ablation energy at a region of interest. Irrigation ports are interlaced within the electrode array to vent irrigant during an ablation procedure to; prevent excessive heating, charring of tissue, coagulation of blood, and allow for efficient delivery of ablation therapy for maximum therapy efficacy. The novel catheter includes a plurality of splines with linear portions wherein the electrodes of the electrode array are disposed. The splines are connected by connectors which include one or more bends capable of storing potential energy when the bends are elastically deformed, enabling collapse and expansion of the catheter in a sheath. Software logic associated with this catheter analyzes sensing signals to diagnose critical regions of the biological rhythm disorder, and enables directional guidance to move the catheter to critical regions for therapy.

Treatment system with sensing and ablation catheter for treatment of heart rhythm disorders

An ablation treatment catheter may include a first conductive wire formed of a first material. The first conductive wire is configured to be connected to a power generator and to carry a current to deliver ablation energy to a biological tissue. The catheter may include a second wire coupled to the first conductive wire. The second wire formed of a second material. The second wire forming a junction with the first conductive wire. The catheter may include a first electrode comprising an ablation element and a temperature sensor. The ablation element includes part of the first conductive wire and is configured to deliver the ablation energy to the biological tissue. The temperature sensor includes the junction of the first conductive wire and the second wire such that a thermocouple is formed at the junction to measure temperature at the first electrode.

Generator and catheter for tissue ablation

An exclusively digital timing engine that measures extremely short time intervals for use in time of flight systems such as laser range finding systems. This exclusively digital timing engine minimizes the use of high speed, high cost components by employing a novel time multiplexing scheme to execute each of the primary time of flight functions: frequency synthesis, range gating, and time of flight interval measurement. In addition, the timing engine incorporates a random time delay scheme which enhances the resolution of the time interval measurement.

Digital time interval measurement engine for a time of flight system

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Cupertino, CA, United States of America

Bret A Herscher