US 12,213,697 B2
Atherectomy system adapted to free a stuck atherectomy burr
Mark A. Hilse, Ham Lake, MN (US); Corydon Carlson, Stillwater, MN (US); David Gordon Spangler, New Richmond, WI (US); Daniel Frank Massimini, Brooklyn Park, MN (US); and Laszlo Trent Farago, Hudson, WI (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Mar. 29, 2022, as Appl. No. 17/706,866.
Application 17/706,866 is a continuation of application No. 16/444,789, filed on Jun. 18, 2019, granted, now 11,291,468.
Prior Publication US 2022/0218385 A1, Jul. 14, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/22 (2006.01); A61B 17/3207 (2006.01); A61M 25/09 (2006.01); A61B 17/00 (2006.01); A61F 2/01 (2006.01)
CPC A61B 17/320758 (2013.01) [A61B 17/22 (2013.01); A61M 25/09 (2013.01); A61B 2017/00199 (2013.01); A61B 2017/22038 (2013.01); A61B 2017/22094 (2013.01); A61B 2017/320741 (2013.01); A61F 2/01 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An atherectomy system, comprising:
an atherectomy burr;
a drive mechanism adapted to rotatably actuate the atherectomy burr;
a controller adapted to operate the drive mechanism in a first rotational direction;
the controller further adapted to determine when the atherectomy burr becomes stuck, and when the atherectomy burr becomes stuck, the controller is further adapted to alternate between actively driving the drive mechanism in the first rotational direction for a first distance and actively driving the drive mechanism in a second rotational direction opposite the first rotational direction for a second distance different from the first distance.