Abstract: Systems and methods are described herein for tracking an elongate instrument or other medical instrument in an image.

Abstract: A steerable catheter comprises a flexible catheter body including a proximal shaft section and a distal articulating section, a proximal steering interface coupled to the proximal shaft section, and at least one hollow stiffening member extending through the proximal shaft section. The stiffening member(s) is more rigid than the proximal shaft section and is laterally offset from a geometric cross-sectional center of the proximal shaft section. The steerable catheter further comprises circumferentially spaced lumens extending through the distal articulating section, and pullwires extending through the stiffening member(s) in the proximal shaft section and the respective lumens in the distal articulating section. Each of the pullwires has a distal end that terminates in the catheter body distal to the distal articulating section and a proximal end that terminates in the steering interface. The steering interface is manipulatable to selectively tension the pullwires to bend the distal articulating section.

Abstract: An input device includes a plurality of orientation blocks each representing a portion of a catheter assembly and a controller configured to determine an orientation of the plurality of orientation blocks relative to one another. The controller is further configured to output a control signal that causes a tip of a catheter assembly to adopt the orientation determined by the controller. A system includes an actuator configured to manipulate a position and orientation of the catheter assembly. The controller of the input device is configured to output a control signal to the actuator to make a tip of a catheter assembly adopt the orientation determined by the controller. The input device can be virtually represented on a computing device.

Abstract: An input device for a robotic catheter system includes an inner member having a generally cylindrical shape and defining an axis, and an outer member coaxially disposed on the inner member and configured to rotate about and move along the axis defined by the inner member to control a position and orientation of at least one of a catheter and a guide wire. Rotating the outer member about the axis causes the catheter, the guide wire, or both, to rotate and wherein moving the outer member along the axis causes the catheter, the guide wire, or both, to advance or retract relative to a patient's body.

Abstract: Systems and methods are described herein for tracking an elongate instrument or other medical instrument in an image.

Abstract: A steerable catheter comprises a flexible catheter body including a proximal shaft section and a distal articulating section, a proximal steering interface coupled to the proximal shaft section, and at least one hollow stiffening member extending through the proximal shaft section. The stiffening member(s) is more rigid than the proximal shaft section and is laterally offset from a geometric cross-sectional center of the proximal shaft section. The steerable catheter further comprises circumferentially spaced lumens extending through the distal articulating section, and pullwires extending through the stiffening member(s) in the proximal shaft section and the respective lumens in the distal articulating section. Each of the pullwires has a distal end that terminates in the catheter body distal to the distal articulating section and a proximal end that terminates in the steering interface. The steering interface is manipulatable to selectively tension the pullwires to bend the distal articulating section.

Abstract: A system, method and computer program product provides for portfolio analysis in one or more exemplary periods. The method may includes determining weight and return measures between a plurality of assets based upon the likely performance of the assets. The method may also includes determining at least one allocation measure (AM) of the plurality of assets, and decomposing the at least one allocation measure (AM) respectively into at least one static allocation (SA) measure and at least one dynamic allocation (DA) measure. The method may also include determining at least one variance measure (VM); and decomposing the at least one variance measure (VM) into at least one static variance (SV) measure and at least one dynamic variance (DV) measure. The measure may also include attributing performance of the active portfolio of the at least one active portfolio manager across the SA, DA, SV and DV.

Abstract: An electrochemical device, such as a battery or power source, provides improved performance under stringent or extreme conditions. Such an electrochemical device for use in high temperature conditions may include at least a cathode, a lithium-based anode, a separator, and an ionic liquid electrolyte. This device also may include a current collector and housing that are electrochemically inert with respect to other components of the device. This electrochemical device may operate at temperatures ranging from 0 to 180, 200, 220, 240, and 260° C.

Abstract: A joystick device includes a base, an upright joystick handle disposed pivotally on the base and operable to generate a first input signal, and a mouse unit disposed on a top end of the joystick handle and operable to generate a second input signal. An output unit is disposed on the base. A control unit is disposed on the base and connected to the joystick handle, the mouse unit, and the output unit. When the joystick handle is operated, the control unit receives the first input signal from the joystick handle so as to output a first output signal via the output unit. When the mouse unit is operated, the control unit receives the second input signal from the mouse unit so as to output a second output signal via the output unit. A power source supplies electric power to the control unit.

Abstract: A system, method and computer program product provides for portfolio analysis in one or more exemplary periods. The method includes determining weight and return measures between a plurality of assets based upon the likely performance of the assets. It also includes determining at least one allocation measure (AM) of the plurality of assets, and decomposing the at least one allocation measure (AM) respectively into at least one of a static allocation (SA) measure and a dynamic allocation (DA) measure.

Abstract: A joystick device includes a base, an upright joystick handle disposed pivotally on the base and operable to generate a first input signal, and a mouse unit disposed on a top end of the joystick handle and operable to generate a second input signal. An output unit is disposed on the base. A control unit is disposed on the base and connected to the joystick handle, the mouse unit, and the output unit. When the joystick handle is operated, the control unit receives the first input signal from the joystick handle so as to output a first output signal via the output unit. When the mouse unit is operated, the control unit receives the second input signal from the mouse unit so as to output a second output signal via the output unit. A power source supplies electric power to the control unit.

Abstract: A clock recovery circuit capable of automatically adjusting the frequency range of a voltage-controlled oscillator (VCO). The clock recovery circuit includes a phase detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency counter, and a frequency control unit. The phase detector receives an input signal, such as EFM clock, and a VCO clock and outputs a control signal according to phase differences between the EFM clock and the VCO clock. The charge pump controls the charge action according to the control signal. The loop filter is connected to the charge pump and outputs a voltage signal. The voltage-controlled oscillator receives the voltage signal from the loop filter and outputs the VCO clock. The frequency counter counts the frequency of the VCO clock and outputs an oscillation frequency.

Abstract: A clock recovery circuit capable of automatically adjusting the frequency range of a voltage-controlled oscillator (VCO) is proposed. The clock recovery circuit includes a phase detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency counter, and a frequency control unit. The phase detector receives an input signal, such as EFM clock, and a VCO clock and outputs a control signal according to phase differences between the EFM clock and the VCO clock. The charge pump controls the charge action according to the control signal. The loop filter is connected to the charge pump and cooperates with the charge pump to output a voltage signal. The voltage-controlled oscillator receives the voltage signal from the loop filter and outputs the VCO clock. The frequency counter counts the frequency of the VCO clock and outputs an oscillation frequency.