US 11,744,609 B2
High power atherectomy with multiple safety limits
Matthew Saterbak, Big Lake, MN (US); Corydon Carlson, Stillwater, MN (US); and Andrew David Bicek, Elk River, 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. 12, 2021, as Appl. No. 17/174,996.
Claims priority of provisional application 62/978,600, filed on Feb. 19, 2020.
Prior Publication US 2021/0251653 A1, Aug. 19, 2021
Int. Cl. A61B 17/3207 (2006.01); G16H 40/60 (2018.01); A61B 90/00 (2016.01); A61B 17/32 (2006.01)
CPC A61B 17/320758 (2013.01) [G16H 40/60 (2018.01); A61B 2017/320032 (2013.01); A61B 2090/031 (2016.02); A61B 2090/0807 (2016.02)] 18 Claims
OG exemplary drawing
 
1. An atherectomy system, comprising:
an electric drive mechanism adapted to rotatably actuate an atherectomy burr; and
a Proportional Integral Derivative (PID) controller adapted to regulate operation of the electric drive mechanism, the PID controller regulating operation of the electric drive mechanism in accordance with a power input limit value that limits how much power can be put into the atherectomy burr and an energy input limit value that limits how much energy can be put into the atherectomy burr.