US 11,918,281 B2
Folding fan catheter with electrodes
Christopher Thomas Beeckler, Brea, CA (US); Assaf Govari, Haifa (IL); Joseph Thomas Keyes, Sierra Madre, CA (US); and Kevin Justin Herrera, West Covina, CA (US)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Oct. 7, 2020, as Appl. No. 17/065,456.
Prior Publication US 2022/0104873 A1, Apr. 7, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2017/00526 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00613 (2013.01); A61B 2562/166 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An apparatus for performing a medical procedure, comprising:
a shaft configured for insertion through a sheath into a cavity of an organ of a patient; and
a folding fan catheter fixed to a distal end of the shaft, the folding fan catheter comprising:
a resilient foldable frame comprising a plurality of splines, the resilient foldable frame fixed to the distal end of the shaft and configured to be unfolded so as to assume a fan shape, each spline of the plurality of splines being generally flat and comprising a proximal planar portion, a distal planar portion, and a twisted portion disposed therebetween;
a puller wire attached to a distal end of at least one spline and configured to, when pulled in a proximal direction, cause the plurality of splines to bend at the twisted portion and to cause the resilient foldable frame to unfold to the fan shape;
one or more flexible surfaces, coupled to the resilient foldable frame to form a fan-shaped surface when the resilient foldable frame is unfolded; and
a plurality of electrodes disposed over the one or more flexible surfaces configured to contact tissue to perform the medical procedure.