US 11,786,301 B2
Electroporation system and method of energizing a catheter
Eric Olson, St. Paul, MN (US)
Assigned to ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC., St. Paul, MN (US)
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed on Oct. 12, 2022, as Appl. No. 17/964,338.
Application 17/964,338 is a continuation of application No. 16/493,336, granted, now 11,497,550, previously published as PCT/US2018/026679, filed on Apr. 9, 2018.
Claims priority of provisional application 62/483,749, filed on Apr. 10, 2017.
Prior Publication US 2023/0030152 A1, Feb. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 18/14 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 18/1206 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/00654 (2013.01); A61B 2018/1266 (2013.01); A61B 2018/1467 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A catheter for delivering electroporation, the catheter comprising:
a distal section configured to be positioned in a vein within a body, the vein defining a central axis; and
an electrode assembly coupled to the distal section, the electrode assembly comprising:
a structure configured to at least partially contact the vein, and
a plurality of electrodes distributed about the structure, each electrode of the plurality of electrodes configured to be selectively energized to form a circumferential ring of energized electrodes that is concentric with the central axis of the vein, wherein a subset of the plurality of electrodes that forms the circumferential ring is configured to be selected by a computing system coupled to the catheter by automatically determining, based on detected respective positions of the plurality of electrodes, which of the plurality of electrodes form an approximately circular or ellipsoid closed path, wherein the computing system is configured to automatically determine which of the plurality of electrodes form an approximately circular or ellipsoid closed path by:
approximating the catheter as an ellipsoid;
identifying, based on user input received at the computing system, a plane oriented perpendicular to a normal vector;
computing an intersection between the ellipsoid and the identified plane; and
selecting electrodes of the plurality of electrodes that are within a threshold distance of the computed intersection.