Patent ID: 11931058
Assignee: BOSTON SCIENTIFIC SCIMED, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A rotational drive system, comprising:
a handle;
a drive motor adapted to rotate a drive cable extending through the handle, the drive cable operably coupled to the drive motor with a rotational tool disposed at a distal end of the drive cable;
a control system adapted to regulate operation of the drive motor, the control system further adapted to:
provide the drive motor with a high frequency pulse width modulation (PWM) drive signal in order to operate the drive motor;
monitor a motor performance parameter;
when the motor performance parameter approaches a limit of a performance range, the control system adds a low frequency PWM signal to the high frequency PWM drive signal, thereby causing the drive motor to produce a tactile signal that signals to a user that the motor performance parameter is approaching the limit of the performance range.