US 11,850,051 B2
Mapping grid with high density electrode array
Thomas Selkee, Irwindale, CA (US); Keshava Datta, Chino Hills, CA (US); Thanh Nguyen, El Monte, CA (US); Anand Rao, Tustin, CA (US); Rajesh Pendekanti, Irwindale, CA (US); Meir Bar-Tal, Haifa (IL); and Ricardo Padilla, Irwindale, CA (US)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed on Mar. 25, 2020, as Appl. No. 16/830,011.
Claims priority of provisional application 62/841,154, filed on Apr. 30, 2019.
Prior Publication US 2020/0345262 A1, Nov. 5, 2020
Int. Cl. A61B 5/287 (2021.01); A61B 5/00 (2006.01); A61B 18/14 (2006.01); A61B 5/283 (2021.01); A61B 18/00 (2006.01)
CPC A61B 5/287 (2021.01) [A61B 5/283 (2021.01); A61B 5/6856 (2013.01); A61B 18/1492 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00839 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A catheter for electrophysiology applications, the catheter includes:
a tubular member extending along a longitudinal axis from a proximal portion to a distal portion, the distal portion having a cross-section disposed about the longitudinal axis, the cross-section intersecting first and second orthogonal planes that extend along the longitudinal axis, the cross-section of the distal portion includes:
first and second openings intersecting the first orthogonal plane and extending along the longitudinal axis, each of the openings configured to receive a puller wire;
six apertures disposed between the first and second openings with four apertures intersecting the second orthogonal plane, each of the apertures configured to receive a spine member; and
an end effector coupled to the distal portion, the end effector including first, second and third closed-loop members, the end effector having an unrestrained configuration in which:
the first closed-loop member includes a first spine connected to a second spine with a first loop connector portion to define a first generally planar surface between the first spine, first loop connector portion and second spine such that the first generally planar surface intersects the first and second orthogonal planes,
the second closed-loop member includes a third spine connected to a fourth spine with a second loop connector portion to define a second generally planar surface between the third spine, second loop connector portion and fourth spine such that the second generally planar surface intersects the first and second orthogonal planes, and
the third closed-loop member includes a fifth spine connected to a sixth spine with a third loop connector portion to define a third generally planar surface that intersects only one of the first and second orthogonal planes.