CPC A61B 17/320758 (2013.01) [A61B 1/00133 (2013.01); A61B 17/00234 (2013.01); A61B 17/32002 (2013.01); G05B 19/4061 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00398 (2013.01); A61B 2090/031 (2016.02); G05B 2219/37622 (2013.01); G05B 2219/42325 (2013.01)] | 19 Claims |
1. A medical device configured for use in an atherectomy procedure in a vessel of a patient, the medical device comprising:
an elongated drive shaft;
a rotational tip member coupled to a distal end of the elongated drive shaft, the rotational tip member configured to rotate and engage material in a patient vessel while rotating;
a motor coupled to a proximal end of the elongated drive shaft to rotate the rotational tip member; and
a control unit configured to control a motor state of the motor, the control unit is further configured to adjust the motor state to decelerate the motor in response to a detected stall condition, and
wherein the stall condition is detected when a speed of the motor reaches or goes beyond a threshold level.
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