DUAL NODE MULTIRAY ELECTRODE CATHETER

摘要

This disclosure is directed to a catheter having a dual node multiray electrode assembly at the distal end of the catheter body. The dual node multiray electrode assembly includes a proximal multiray array with a plurality of spines connected at one end, each spine having at least one ablation electrode, and a distal node. The dual node multiray electrode assembly may have an expanded configuration and a collapsed configuration wherein the spines are arranged generally along a longitudinal axis of the catheter body. The distal node may be configured to be deployed within a vessel and the proximal multiray array may be configured to engage tissue forming an ostium of the vessel with the ablation electrodes. In some embodiments, the relative distance between the proximal multiray array and the distal node is adjustable.

主权项

1. A catheter comprising an elongated catheter body having proximal and distal ends and a dual node multiray electrode assembly at the distal end of the catheter body, wherein the dual node multiray electrode assembly comprises a proximal node including a multiray array with a plurality of spines connected at one end, each spine having at least one ablation electrode, and a distal node including an inflatable balloon, and wherein the dual node multiray electrode assembly has an expanded configuration and a collapsed configuration wherein the spines of the proximal multiray array are arranged generally along a longitudinal axis of the catheter body and the distal node conforms to the catheter body in the collapsed configuration.