Abstract: One embodiment provides a method, including: detecting, using at least one sensor, a displacement event associated with a monopod jib, wherein the displacement event moves a portion of the monopod jib from a first position to a second position; calculating, using a processor, an adjustment value for at least one of a plurality of motors of a stabilization mechanism operatively coupled to the monopod jib, wherein the calculated adjustment value identifies a motor movement to counteract the displacement event; activating the at least one of a plurality of motors corresponding to the calculated adjustment value; and adjusting, using the activated at least one of the plurality of motors, at least one portion of the stabilization mechanism using the calculated adjustment value. Other embodiments are shown and described.

Abstract: One embodiment provides a method, including: detecting, using at least one sensor, a displacement event associated with a monopod jib, wherein the displacement event moves a portion of the monopod jib from a first position to a second position; calculating, using a processor, an adjustment value for at least one of a plurality of motors of a stabilization mechanism operatively coupled to the monopod jib, wherein the calculated adjustment value identifies a motor movement to counteract the displacement event; activating the at least one of a plurality of motors corresponding to the calculated adjustment value; and adjusting, using the activated at least one of the plurality of motors, at least one portion of the stabilization mechanism using the calculated adjustment value. Other embodiments are shown and described.

Abstract: This invention provides small position sensors for applications where localized sensing in a small volume of space is needed but where measurement of large relative displacement is also necessary. The invention enables a surgeon to accurately position the tip of a catheter during minimally invasive therapy. The current invention further improves the quality of tactile feedback to a physician during catheter-based surgeries with an axial force sensor at the tip of the catheter that allows for the transmission of force information to the physician. One embodiment of this invention is a position sensor for active interventional catheters, where the sensor may be laser-machined shape memory alloy (SMA), and the catheter actuators may be heated SMA or wire-pulleys. Providing position feedback from a catheter during minimally invasive therapy allows for closed-loop control of the catheter tip position under computer-aided guidance and enable force feedback to the physician.

Abstract: A control method for an haptic device is provided with particular attention to motor control amplifiers exploiting the inate motor dynamics of DC motors. The control method encompasses a digital and analog circuit. In the digital circuit, a command voltage is determined by a digital controller utilizing sensed motion information of the haptic device and a motion command signal. In the analog circuit, an amplifier applies a voltage to an electrical DC motor. The applied voltage incorporates the determined command voltage from the digital controller and a voltage to reduce the electrical dynamics of the electrical DC motor.

Abstract: A system for predicting hypoglycemia based on continuous blood glucose monitor values is provided. The hypoglycemia detection algorithm is a set of individual alarms that are combined through a voting system into one combined alarm. The system could have five components and an overall voting algorithm that produces a binary alarm outcome depending on the number of constituent algorithms that report an alarm. A controller system automatically shuts off the insulin pump when pending or real hypoglycemia has been reached. The algorithms operate in a closed loop and automatically take action when the subject is asleep.

Abstract: A motor control amplifier for position feedback control is provided utilizing the inherent inductor and/or resistor dynamics of the motor. The motor control amplifier applies a voltage to the motor equivalent to the electrical motor resistance multiplied by the current of the motor, canceling out the electrical motor resistance, and thereby providing position feedback control through motor inductance. A command term/voltage could be added to make the position feedback control relative to a setpoint. Further, a motor control amplifier for feedback control to arbitrary dynamics is provided. The motor amplifier applies a voltage proportional to a wave command signal. The motor amplifier has a sensing component to provide a wave return signal to construct a wave transformer from the electrical motor resistance.