US 9,808,300 B2
Control of arterial smooth muscle tone
Roger Hastings, Maple Grove, MN (US); William J. Drasler, Minnetonka, MN (US); Vitaly N. Shapovalov, New Hope, MN (US); Mark Schroeder, Fargo, ND (US); and Anupama Sadasiva, Maple Grove, MN (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Feb. 19, 2013, as Appl. No. 13/770,052.
Application 13/770,052 is a continuation of application No. 13/226,732, filed on Sep. 7, 2011, granted, now 8,391,971.
Application 13/226,732 is a continuation of application No. 11/381,238, filed on May 2, 2006, granted, now 8,019,435.
Prior Publication US 2013/0172882 A1, Jul. 4, 2013
Int. Cl. A61N 1/36 (2006.01); A61B 18/00 (2006.01); A61N 1/05 (2006.01)
CPC A61B 18/00 (2013.01) [A61N 1/05 (2013.01); A61N 1/36017 (2013.01); A61N 1/36007 (2013.01); A61N 1/36117 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a catheter comprising a first electrode configured to be fed into a renal artery of a patient;
a temperature sensor disposed adjacent to the first electrode;
a power supply; and
an electronic controller configured to couple the power supply to the first electrode;
wherein the controller is configured to deliver a voltage waveform to the first electrode to perform a hypertension treatment;
wherein the controller is configured to synchronize the voltage waveform with the patient's cardiac cycle;
wherein the controller is configured to regulate the voltage waveform based on a temperature signal at a treatment location from the temperature sensor; and
wherein the controller is configured to maintain a positive voltage during diastole and a zero or negative voltage at other times.