US 12,336,752 B2
Tuned RF energy and electrical tissue characterization for selective treatment of target tissues
Corbett W. Stone, San Diego, CA (US); Michael F. Hoey, Shoreview, MN (US); Thomas A. Steinke, Hollywood, FL (US); Raphael M. Michel, Palo Alto, CA (US); Arthur G. Blanck, Ramona, CA (US); Marlene Kay Truesdale, Green Bay, WI (US); and Bret Herscher, Cupertino, 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. 26, 2022, as Appl. No. 17/729,981.
Application 17/729,981 is a continuation of application No. 16/038,648, filed on Jul. 18, 2018, granted, now 11,331,138.
Application 16/038,648 is a continuation of application No. 13/831,680, filed on Mar. 15, 2013, abandoned.
Application 13/831,680 is a continuation of application No. 11/975,651, filed on Oct. 18, 2007, granted, now 8,920,414, issued on Dec. 30, 2014.
Claims priority of provisional application 60/921,973, filed on Apr. 4, 2007.
Claims priority of provisional application 60/852,787, filed on Oct. 18, 2006.
Prior Publication US 2022/0323145 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 18/12 (2006.01); A61M 5/14 (2006.01); A61M 25/10 (2013.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 34/10 (2016.01); A61B 34/20 (2016.01); A61B 90/00 (2016.01)
CPC A61B 18/1492 (2013.01) [A61B 18/1206 (2013.01); A61M 5/14 (2013.01); A61M 25/10 (2013.01); A61B 2017/00106 (2013.01); A61B 2018/0016 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00267 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/00869 (2013.01); A61B 2018/00875 (2013.01); A61B 2034/105 (2016.02); A61B 2034/2068 (2016.02); A61B 2090/3735 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A catheter system for remodeling of a target tissue adjacent a blood vessel of a patient, the catheter system comprising:
an elongate flexible catheter body having a proximal end and a distal end with an axis therebetween;
a radially expandable structure coupled to the elongate flexible catheter body; one or more pairs of bipolar electrodes engageable with a vessel wall of the blood vessel;
a power source electrically coupled to the one or more pairs of bipolar electrodes, the power source configured to energize the one or more pairs of bipolar electrodes with a controlled electrical remodeling energy that heats the target tissue so as to remodel the target tissue without thermally damaging a collateral tissue; and
a processor programmed to determine the controlled electrical remodeling energy by monitoring a characteristic of a circuit comprising the one or more pairs of bipolar electrodes engaged against the vessel wall, the target tissue, and the collateral tissue, the processor programmed to select a phase angle of the controlled electrical remodeling energy to compensate for a measured phase angle of the circuit;
wherein the controlled electrical remodeling energy is such that energizing the circuit heats the target tissue to a target tissue treatment temperature so as to remodel the target tissue and heats the collateral tissue to a collateral tissue temperature that is lower than the target tissue treatment temperature.