An atherectomy system includes a handle and a drive motor that is adapted to rotate a drive cable extending through the handle and operably coupled to an atherectomy burr. A control system is adapted to regulate operation of the drive motor, including providing the drive motor with a high frequency pulse width modulation (PWM) drive signal in order to operate the drive motor. The control system monitors a motor performance parameter such as motor speed or motor torque, and 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 the user that the motor performance parameter is approaching the limit of the performance range.

A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual articulation mechanism to articulate a jaw assembly coupled to a reload shaft connected to the handle. The manual articulation mechanism can include a ball screw mechanism that translates an articulation member responsive to rotation of an articulation knob when an instrument shaft is engaged with the handle. The articulation mechanism includes a release function that allows the jaw assembly to return to a longitudinally centered orientation. The powered handle includes a battery pack serving as a power supply for the drive system. A control system can control actuation of the motor based on user inputs and operating parameters of the stapler and can provide certain motor drive profiles for predetermined positions of the stapler. The powered handle can include a manual return mechanism.

A system and method for evaluating an operational capacity of a powered surgical system is disclosed. A sensor is configured to monitor an operational condition of the powered surgical system. A control circuit is configured to receive the operational condition of the powered surgical system from the sensor, store the received operational condition of the powered surgical system in the memory, evaluate the operational capacity of the powered surgical system based on the stored operational condition of the powered surgical system, and disable the powered surgical system in response to the evaluation of the operational capacity of the powered surgical system.

A powered stapling device has a motor which can be operated at differing speeds based on a parameter indicative of the assembly's capabilities. The powered stapling device has a control system for controlling the motor. The control system has the ability to pause or stop the advancement of the firing system. The control system can stop advancement of the motor when a force or torque exceeds a predetermined force of torque on the firing rod. The control system can recouple the motor so that the motor is able to continue advancement when the force falls below the predetermine force limit, or a different predetermined force limit.

Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within a fluid-filled member configured to contain a conductive fluid.

Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing electrical energy to generate an electrical arc between a set of spaced-apart electrodes disposed within fluid-fillable member are disclosed.

Various embodiments of the systems, methods, and devices are provided for controlled operation of an intravascular lithotripsy (IVL) system for breaking up calcified lesions in an anatomical conduit. More specifically, control arrangements are disclosed concerning managing and/or providing and/or assessing the electrical energy needed to generate an electrical arc between a set of spaced-apart electrodes disposed within a fluid-fillable member.

The object of the invention is an electronic device for the operation of an endourological laser surgery system. The endourological laser surgery system comprises an endourological laser surgery device. The electronic device comprises a processor; memory; an interface comprising a display and an input device. The electronic device is configured for the acquisition of a configuration scheme of the endourological laser surgery device. The electronic device is configured for the determination, based on the configuration scheme, of an energy parameter associated with the light emission by the endourological laser surgery device. The energy parameter is determined based on an energy level and a pulse duration for the light emission by the endourological laser surgery device. The electronic device is configured for the representation, on the display, of a first user interface object which is representative of the energy parameter.

Disclosed is a surgical system, comprising an end effector configurable between an open state and a clamped state. The end effector comprises a first jaw and a second jaw moveable relative to the first jaw. The surgical system further comprises a drive system, comprising a motor and a drive assembly movable by the motor to effect a tissue-treatment motion at the end effector. The surgical system further comprises a motor control system comprising motor control electronics. The motor control system is configured to transmit a motor drive signal that causes the motor to move the drive assembly to effect the tissue-treatment motion at the end effector and control the motor control electronics to modify the tissue-treatment motion independent of the motor drive signal.

In one embodiment of the present invention, a method of applying ultrasonic energy to a treatment site within a patient's vasculature comprises positioning an ultrasound radiating member at a treatment site within a patient's vasculature. The method further comprises activating the ultrasound radiating member to produce pulses of ultrasonic energy at a cycle period T1 second. The acoustic parameters such as peak power, pulse width, pulse repetition frequency and frequency or any combination of them can be varied non-linearly.