US 12,290,274 B2
Dynamically controlling a distal window opening in a rotary surgical shaver
Robert Fugerer, Lutz, FL (US); Brett Poole, St. Pete Beach, FL (US); Joshua Buckman, St. Pete Beach, FL (US); Ankur Vayeda, St. Pete Beach, FL (US); and Jefferey Slater, Naples, FL (US)
Assigned to Arthrex, Inc., Naples, FL (US)
Filed by ARTHREX, INC., Naples, FL (US)
Filed on May 25, 2021, as Appl. No. 17/329,999.
Prior Publication US 2022/0378457 A1, Dec. 1, 2022
Int. Cl. A61B 17/32 (2006.01); G16H 40/63 (2018.01); A61B 17/00 (2006.01); A61B 17/3207 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/32002 (2013.01) [G16H 40/63 (2018.01); A61B 2017/00017 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/320024 (2013.01); A61B 2017/320028 (2013.01); A61B 2017/320032 (2013.01); A61B 2017/32004 (2013.01); A61B 2017/320064 (2013.01); A61B 17/320758 (2013.01); A61B 2017/320766 (2013.01); A61B 2017/320775 (2013.01); A61B 17/320783 (2013.01); A61B 2090/0811 (2016.02)] 24 Claims
OG exemplary drawing
 
1. A medical device system, comprising:
a handheld rotary medical device, comprising:
a motor,
an inner drive shaft coupled to the motor;
an elongated outer housing receiving the inner drive shaft such that the inner drive shaft is positioned within the outer housing;
a shaver at a distal end of the inner drive shaft, wherein the shaver includes at least one opening in an outer wall forming the inner drive shaft; and
wherein the outer housing includes an opening aligned longitudinally with the shaver at the distal end of the inner drive shaft;
an aspiration system with a channel in the inner drive shaft;
a processor configured to control driving of the motor and the inner drive shaft, wherein the processor is configured to dynamically control positioning of a reversal position, during operation of the motor, by dynamically controlling the opening in the inner drive shaft relative to the opening in the outer housing based on continuously tracking the motor to create a desired degree of window alignment or misalignment at any incremental position between and including fully open and fully closed at the reversal position to create desired torque in the inner drive shaft.