Abstract: A high contrast instrument, such as a radiopaque portion, can be captured and/or viewed in an image that is acquired with an imaging system, such as with a fluoroscopic imaging system. A statistical model can be used to assist in identifying a possible or probable location of a target. A user may move the instrument coil to the statistically probable location of the target to, for example, perform a procedure or carry out a task.

Abstract: A distributed power management system is configured determine a node power consumption of a node during a first time interval. The system can determine a node power cap. The system can determine a proportional component power budget for a component of the node based, at least in part, on the node power consumption and a component power consumption. The system can determine a power budget for the component for a second time interval based, at least in part on the proportional component power budget.

Abstract: A distributed power management system is configured determine a node power consumption of a node during a first time interval. The system can determine a node power cap. The system can determine a proportional component power budget for a component of the node based, at least in part, on the node power consumption and a component power consumption. The system can determine a power budget for the component for a second time interval based, at least in part on the proportional component power budget.

Abstract: A distributed power management system is configured determine a node power consumption of a node during a first time interval. The system can determine a node power cap. The system can determine a proportional component power budget for a component of the node based, at least in part, on the node power consumption and a component power consumption. The system can determine a power budget for the component for a second time interval based, at least in part on the proportional component power budget.

Abstract: A high contrast instrument, such as a radiopaque portion, can be captured and/or viewed in an image that is acquired with an imaging system, such as with a fluoroscopic imaging system. A statistical model can be used to assist in identifying a possible or probable location of a target. A user may move the instrument coil to the statistically probable location of the target to, for example, perform a procedure or carry out a task.

Abstract: A multi-phase buck converter comprises a first comparator, a second comparator and a counter. The first comparator has a first node connected to a first voltage reference and a second node. The second comparator has a first node connected to a second voltage reference and a second node. The second node of the second comparator and the second node of the first comparator are together connected to an input voltage from an active phase of the buck converter. The counter is configured to adjust a number of active phases of the buck converter based on the input voltage.

Abstract: A high contrast instrument, such as a radiopaque portion, can be captured and/or viewed in an image that is acquired with an imaging system, such as with a fluoroscopic imaging system. A statistical model can be used to assist in identifying a possible or probable location of a target. A user may move the instrument coil to the statistically probable location of the target to, for example, perform a procedure or carry out a task.

Abstract: The present disclosure relates to voltage regulation techniques. In some embodiments, a voltage regulator is configured to regulate an output voltage based on a reference voltage. The voltage regulator comprises an analog-to-digital converter, an encoder, a decoder and a power stage. The analog-to-digital converter receives the reference voltage and an output voltage of the voltage regulator and provides a digital error signal. The encoder is coupled to the analog-to-digital converter output and configured to provide a multi-bit digital control signal based upon a present value of the digital error signal, a plurality of pre-determined coefficients, and a plurality of previous values of the digital error signal. The decoder is coupled to the encoder and configured to generate a plurality of control signals based on the multi-bit digital control signal. The power stage comprises a plurality of power cells which are coupled to a power supply and which receive the plurality of control signals, respectively.

Abstract: A multi-phase buck converter comprises a first comparator, a second comparator and a counter. The first comparator has a first node connected to a first voltage reference and a second node. The second comparator has a first node connected to a second voltage reference and a second node. The second node of the second comparator and the second node of the first comparator are together connected to an input voltage from an active phase of the buck converter. The counter is configured to adjust a number of active phases of the buck converter based on the input voltage.

Abstract: A medical apparatus includes an electrically conductive lead for a medical device, the lead having an internal bore terminating at a distal lead opening, and a lead delivery device for delivering the distal end of the lead to a blood vessel during implantation of the lead. The lead delivery device includes a removably anchorable guidewire, and a fixator attached to a distal portion of the guidewire for anchoring the guidewire. The fixator is movable between a compact configuration and an expanded configuration. The fixator is capable of passing through the distal lead opening of the lead in the compact configuration. The fixator is capable of exerting a holding force in the range of about 0.89 to 4.45 N in the lumen of the blood vessel in the expanded configuration.

Abstract: A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.

Abstract: A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.

Abstract: A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.

Abstract: The present disclosure relates to voltage regulation techniques. In some embodiments, a voltage regulator is configured to regulate an output voltage based on a reference voltage. The voltage regulator comprises an analog-to-digital converter, an encoder, a decoder and a power stage. The analog-to-digital converter receives the reference voltage and an output voltage of the voltage regulator and provides a digital error signal. The encoder is coupled to the analog-to-digital converter output and configured to provide a multi-bit digital control signal based upon a present value of the digital error signal, a plurality of pre-determined coefficients, and a plurality of previous values of the digital error signal. The decoder is coupled to the encoder and configured to generate a plurality of control signals based on the multi-bit digital control signal. The power stage comprises a plurality of power cells which are coupled to a power supply and which receive the plurality of control signals, respectively.

Abstract: A distributed power management system is configured determine a node power consumption of a node during a first time interval. The system can determine a node power cap. The system can determine a proportional component power budget for a component of the node based, at least in part, on the node power consumption and a component power consumption. The system can determine a power budget for the component for a second time interval based, at least in part on the proportional component power budget.

Abstract: A distributed power management computer program product is configured to collect power consumption data that indicates power consumption by at least a plurality of the components of a node. The program code can be configured to provide, to each of a plurality of controllers associated with a respective one of the plurality of components, the power consumption data. The program code can be configured to determine a node power consumption. The program code can be configured to determine a power differential as a difference between the node power consumption and an upper power consumption threshold of the node. The program code can be configured to determine a proportion of the node power consumption consumed by a first component. The program code can be configured to compute a local power budget for the first component.

Abstract: Embodiments include collecting, from each of a plurality of controllers of a node having a plurality of components, component power consumption. Each of the plurality of controllers is associated with one or more of the components. The component power consumptions are provided to the controllers. A node power consumption for the node is determined based, at least in part, on the component power consumption. The power cap is determined for the plurality of components. A power differential power is determined as a difference between the node power consumption and the power cap for the plurality of components. A proportion of the node power consumption consumed by the component is determined based on the component power consumption of the component. A local power budget is computed for the component based, at least in part, on the power differential and the proportion of the node power consumption consumed by the component.

Abstract: Embodiments include collecting, from each of a plurality of controllers of a node having a plurality of components, component power consumption. Each of the plurality of controllers is associated with one or more of the components. The component power consumptions are provided to the controllers. A node power consumption for the node is determined based, at least in part, on the component power consumption. The power cap is determined for the plurality of components. A power differential power is determined as a difference between the node power consumption and the power cap for the plurality of components. A proportion of the node power consumption consumed by the component is determined based on the component power consumption of the component. A local power budget is computed for the component based, at least in part, on the power differential and the proportion of the node power consumption consumed by the component.

Abstract: A high contrast instrument, such as a radiopaque portion, can be captured and/or viewed in an image that is acquired with an imaging system, such as with a fluoroscopic imaging system. A statistical model can be used to assist in identifying a possible or probable location of a target. A user may move the instrument coil to the statistically probable location of the target to, for example, perform a procedure or carry out a task.

Abstract: In at least some embodiments, an air handler includes a coil and a fan. The air handler also includes an auxiliary heat source having a plurality of heat elements. The auxiliary heat source implements a wear-leveling algorithm to cycle use of the heat elements over multiple auxiliary heat cycles.