US 12,137,970 B2
Devices and methods for inducing ablation in or around occluded implants
John T. Favreau, Spencer, MA (US); Travis Henchie, Worcester, MA (US); and Karim Tarabein, Shaker Heights, OH (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Oct. 5, 2023, as Appl. No. 18/481,996.
Application 18/481,996 is a continuation of application No. 16/717,439, filed on Dec. 17, 2019, granted, now 11,813,018.
Claims priority of provisional application 62/781,305, filed on Dec. 18, 2018.
Prior Publication US 2024/0024025 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 90/00 (2016.01)
CPC A61B 18/1492 (2013.01) [A61B 2017/00336 (2013.01); A61B 2017/00867 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00488 (2013.01); A61B 2018/00535 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/126 (2013.01); A61B 2018/144 (2013.01); A61B 2090/3966 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A method of treating a stenosis within a previously implanted metallic stent, comprising:
advancing an endoscope to a position adjacent the previously implanted metallic stent;
advancing an elongate shaft from the endoscope and into a lumen of the previously implanted metallic stent such that the elongate shaft is spaced apart from the previously implanted metallic stent, wherein an exposed metallic distal portion of the elongate shaft forms at least one electrode configured to form a first pole of a bipolar ablation device;
separately advancing an electrode lead that is spaced apart from the elongate shaft from the endoscope and into electrical contact with the previously implanted metallic stent such that the previously implanted metallic stent forms a second pole of the bipolar ablation device; and
ablating the stenosis by energizing the bipolar ablation device with the electrode lead in electrical contact with the previously implanted metallic stent and the at least one electrode disposed within the lumen of the previously implanted metallic stent and spaced apart radially inward from the previously implanted metallic stent.