US 11,717,337 B2
Electroporation systems and catheters for electroporation systems
Israel Byrd, Richfield, MN (US); Jeffrey M. Fish, Maple Grove, MN (US); Jeffrey A. Schweitzer, St. Paul, MN (US); Daniel J. Potter, Stillwater, MN (US); Gregory K. Olson, Elk River, MN (US); Frederik H. M. Wittkampf, Lage Vuursche (NL); and Rene Van Es, Utrecht (NL)
Assigned to St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Appl. No. 16/464,738
Filed by ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC., St. Paul, MN (US)
PCT Filed Nov. 29, 2017, PCT No. PCT/US2017/063650
§ 371(c)(1), (2) Date May 29, 2019,
PCT Pub. No. WO2018/102376, PCT Pub. Date Jun. 7, 2018.
Claims priority of provisional application 62/431,735, filed on Dec. 8, 2016.
Claims priority of provisional application 62/427,195, filed on Nov. 29, 2016.
Claims priority of provisional application 62/427,190, filed on Nov. 29, 2016.
Prior Publication US 2019/0307500 A1, Oct. 10, 2019
Int. Cl. A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61B 34/20 (2016.01); A61B 18/00 (2006.01); A61B 18/16 (2006.01); A61B 5/287 (2021.01)
CPC A61B 18/1233 (2013.01) [A61B 18/1492 (2013.01); A61B 34/20 (2016.02); A61B 5/287 (2021.01); A61B 2018/00351 (2013.01); A61B 2018/00375 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/00755 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/1266 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1435 (2013.01); A61B 2018/167 (2013.01); A61B 2034/2051 (2016.02); A61B 2034/2053 (2016.02)] 8 Claims
OG exemplary drawing
 
1. A method of controlling an electroporation system including a direct current (DC) energy source, a return electrode connected to the DC energy source, and a catheter connected to the DC energy source, the catheter having at least one catheter electrode, the method comprising:
positioning the return electrode near a target location within a body;
positioning the catheter electrode within the body adjacent the target location within the body;
determining a system impedance with the return electrode positioned near the target location and the catheter electrode positioned within the body;
calculating a target impedance based on a combination of a current density threshold and a characteristic of the catheter; and
adjusting the system impedance to calculated target impedance to limit arcing from the catheter electrode.