Mapping and ablation irrigated hybrid catheter

摘要

An embodiment of an open-irrigated catheter system comprises a tip section, a distal insert, and mapping electrodes. The tip section has an exterior wall that defines an open interior region within the tip section. The exterior wall includes mapping electrode openings and irrigation ports. The exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure. The irrigation ports are in fluid communication with the open interior region to allow fluid to flow from the open interior region through the irrigation ports. The distal insert is positioned within the tip section to separate the open region into a distal fluid reservoir and a proximal fluid reservoir. The mapping electrodes are positioned in the mapping electrode openings in the tip section.

主权项

1. An open-irrigated catheter system for performing mapping and ablation functions, comprising:
a tip section having an exterior wall that defines an open interior region within the tip section, wherein the exterior wall includes mapping electrode openings and irrigation ports in fluid communication with the open interior, and wherein the exterior wall is conductive for delivering radio frequency (RF) energy for an RF ablation procedure; mapping electrodes positioned in the mapping electrode openings in the tip section; and noise artifact isolators surrounding the mapping electrodes and electrically insulating the mapping electrodes from the exterior wall of the tip section, wherein at least a portion of the noise artifact isolators extends radially outward from and beyond the exterior wall of the tip section.