US 11,051,881 B2
Lasso catheter with moveable ablation spine
Itzhak Fang, Irvine, CA (US); Jeffrey Clark, Castaic, CA (US); and Keshava Datta, Chino Hills, CA (US)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Jun. 8, 2020, as Appl. No. 16/895,865.
Application 16/895,865 is a division of application No. 14/881,524, filed on Oct. 13, 2015, granted, now 10,687,890.
Prior Publication US 2020/0297419 A1, Sep. 24, 2020
Int. Cl. A61B 18/14 (2006.01); A61B 5/287 (2021.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 5/287 (2021.01); A61B 2018/00214 (2013.01); A61B 2018/00375 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00821 (2013.01); A61B 2018/141 (2013.01); A61B 2018/142 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1467 (2013.01); A61B 2217/007 (2013.01); A61B 2218/002 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for providing electrical communication with a heart comprising:
providing a catheter having an elongated catheter body having proximal and distal ends and at least one lumen therethrough and a lasso electrode assembly at the distal end of the catheter body, the lasso electrode assembly having a plurality of sensing electrodes distributed along the lasso electrode assembly, wherein the electrodes are ring electrodes, a track extending around at least a portion of an inner circumference of the lasso electrode assembly, the track defined by an elongated groove in a wall of the inner circumference of the lasso electrode assembly, and a moveable spine extending out from the groove in the wall, the moveable spine having at least one ablation electrode thereon such that the moveable spine travels along the track defined by the elongated groove in the wall of the inner circumference of the lasso electrode assembly;
positioning the distal end of the catheter body at a desired region of the heart; and
engaging the lasso electrode assembly within an ostium of a vessel to bring at least one of the sensing electrodes into contact with tissue.