ABLATION CATHETER

摘要

Devices, systems and methods are disclosed for the mapping of electrical signals and the ablation of tissue. Embodiments include an ablation catheter that has an array of ablation elements attached to a deployable carrier assembly. The carrier assembly can be transformed from a compact, linear configuration to a helical configuration, such as to map and ablate pulmonary vein ostia.

主权项

1. A medical device, the device comprising:
an elongate body defining a lumen therethrough; a shaft extending through the lumen; an electrode array coupled to an inner surface of the lumen of the elongate body at a first end and coupled to the shaft at a second end, the shaft being slidingly disposed within the lumen alongside at least a portion of the electrode array, linear manipulation of the shaft causing the electrode array to transition from a first electrode array configuration to a second electrode array configuration; and a spline slidably disposed within the lumen at a first end and coupled to the shaft at a second end, linear manipulation of the first end of the spline within the lumen causing the spline to transition from a first spline configuration to a second spline configuration.