US 12,114,906 B2
Mapping assembly for cryogenic balloon catheter system
Eugene J. Jung, Jr., San Diego, CA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Apr. 2, 2019, as Appl. No. 16/373,146.
Claims priority of provisional application 62/680,816, filed on Jun. 5, 2018.
Prior Publication US 2019/0365451 A1, Dec. 5, 2019
Int. Cl. A61B 18/02 (2006.01); A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 90/00 (2016.01)
CPC A61B 18/02 (2013.01) [A61B 18/1492 (2013.01); A61B 2018/00023 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00255 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/1266 (2013.01); A61B 90/37 (2016.02)] 11 Claims
OG exemplary drawing
 
1. A cryoablation catheter comprising:
a catheter shaft;
a guidewire lumen disposed within the catheter shaft;
a conductor lumen disposed about the guidewire lumen within the catheter shaft;
a cryoballoon having a distal end connected to the guidewire lumen and an opposite proximal end connected to the catheter shaft, the cryoballoon configured to transition between a deflated state and an inflated state, the cryoballoon having a maximum circumference in the inflated state;
a proximal electrode array arranged around the cryoballon proximal to the maximum circumference, the proximal electrode array comprising a plurality of proximal flex circuits each having a plurality of proximal electrodes and a plurality of first conductors coupled to and proximally extending from the proximal electrodes, each proximal flex circuit having a distal end located proximally of the maximum circumference of the cryoballoon;
wherein the proximal flex circuits are at least partially embedded within at least a portion of the catheter shaft and extend from the catheter shaft to the cryoballoon at the proximal end of the cryoballoon;
a distal electrode array disposed around the cryoballoon distal to the maximum circumference, the distal electrode array comprising a plurality of distal flex circuits each having a plurality of distal electrodes and a plurality of second conductors electrically coupled to and distally extending distal from the distal electrodes, each distal flex circuit having a proximal end located distally of the maximum circumference of the cryoballoon; and
wherein the distal flex circuits are routed within a wall defining the conductor lumen and extend from the catheter shaft to the cryoballoon at the distal end of the cryoballoon,
wherein the cryoablation catheter has no proximal and distal electrodes and no proximal and distal flex circuits located at the maximum circumference of the cryoballoon.