Biosense Webster (Israel) Ltd.

Biosense Webster, Inc.

Jamie Lynn Malinaric

Cesar Fuentes-Ortega

Pieter Emmelius Van Niekerk

Dustin R Tobey

Shubhayu Basu

Zhong (Jack) Wang

Qun Sha

Don K Nguyen

Henry F Salazar

Daniele Ghidoli

Lior Botzer

Paul Suarez

Sean D Thaler

Joseph R Wong

John Foley

Simon Lopez

An apparatus includes an end effector having loop members with electrodes thereon and is usable with catheter-based systems to measure or provide electrical signals. The end effector can include three loop members that are non-coplanar when expanded unconstrained that become contiguous to a planar surface when the loop members are deflected against the surface, a mechanical linkage that joins the loop members at a distal vertex of the end effector, electrodes having surface treatment to enhance surface roughness of the electrodes, twisted pair electrode wires, a bonded spine cover, and/or any combination thereof.

Electrode apparatus for diagnosis of arrhythmias

A catheter includes a catheter body and a distal tip section that includes an elongated member that extends along a longitudinal axis. An anchor mechanism can be disposed along an outer surface of the elongated member and/or within the elongated member in a first configuration. In a second configuration, the anchor mechanism can be configured to extend radially outward with respect to the longitudinal axis to surround at least a portion of the distal tip section.

System and methods of using a catheter with an anchoring mechanism

A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.

Device, system and use of a catheter system to record and map cardiac rhythm

An electrophysiology catheter with a distal electrode assembly having covered spine carrying a plurality of microelectrodes. The position of the microelectrodes on each spine is staggered relative to microelectrodes on adjacent spines so as to minimize the risk of electrodes on adjacent spines touching each other during use of the catheter. The staggered electrode configuration provides the distal electrode assembly with a greater effective contact surface because the effective concentric electrode arrays is increased or at least doubled.

Catheter with staggered electrodes spine assembly

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Pasadena, CA, United States of America

Jamie Lynn Malinaric