Electrode Assembly For Catheter System

摘要

An electrode assembly for a catheter system has a longitudinal axis, a proximal end and a distal end. Multiple struts extend coextensively with each other from the proximal end to the distal end of the electrode assembly. Each strut carries an electrode spaced longitudinally from the proximal end of the electrode assembly. The longitudinal spacing of one electrode from the proximal end of the electrode assembly is different from the longitudinal spacing of another electrode from the proximal end of the electrode assembly. The electrode assembly is configurable between a collapsed configuration and an expanded configuration, with the electrodes being transversely spaced from the longitudinal axis of the electrode assembly a greater distance in the expanded configuration than in the collapsed configuration. In the expanded configuration, the electrodes are transversely spaced from the longitudinal axis of the electrode assembly approximately the same distance.

主权项

1. A catheter system comprising:
a handle, an elongate shaft extending from the handle an electrode assembly carried by the shaft and having a longitudinal axis, a proximal end and a distal end, the electrode assembly comprising:
a first strut extending from the proximal end to the distal end of the electrode assembly, the first strut having a first hinge at a first longitudinal distance from the proximal end of the electrode assembly to facilitate bending of the strut at the first hinge;a second strut different from the first strut and extending coextensively with the first strut from the proximal end to the distal end of the electrode assembly, the second strut having a second hinge at a second longitudinal distance from the proximal end of the electrode assembly to facilitate bending of the second strut at the second hinge, the second longitudinal distance being different from the first longitudinal distance of the first hinge;the electrode assembly being configurable between a collapsed configuration in which the first and second hinges are at a first transverse distance relative to the longitudinal axis of the electrode assembly, and an expanded configuration in which the first and second hinges are transversely spaced a second transverse distance relative to the longitudinal axis of the electrode assembly, the second transverse distance being greater than the first transverse distance; and an actuator associated with the handle and operatively connected to the electrode assembly for selectively configuring the electrode assembly from its collapsed configuration to its expanded configuration.