Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a high voltage therapy module is configured to control a high voltage charging circuit to charge a capacitor to a pacing voltage amplitude to deliver charge balanced pacing pulses. The capacitor is chargeable to a shock voltage amplitude that is greater than the pacing voltage amplitude. The ICD is configured to enable switching circuitry of the high voltage therapy module to discharge the capacitor to deliver a first pulse having a first polarity and a leading voltage amplitude corresponding to the pacing voltage amplitude for pacing the patient's heart via a pacing electrode vector selected from extra-cardiovascular electrodes. The high voltage therapy module delivers a second pulse after the first pulse. The second pulse has a second polarity opposite the first polarity and balances the electrical charge delivered during the first pulse.

Abstract: Systems, methods, and devices for generating a hybrid image are provided. A preoperative image may be received. A first intraoperative image may be received from an imaging device. The preoperative image and the first intraoperative image may be input into a hybrid model that combines the first intraoperative image with the preoperative image. A hybrid image comprising the preoperative image combined with the first intraoperative image may be generated with an output of the hybrid model.

Abstract: A method for cleaning an endoscope during a surgical procedure performed with a surgical instrument. The method includes: measuring with a processor module an aggregate activation time of the surgical instrument during the surgical procedure; and activating an endoscope cleaning system with the processor module to clean a lens of the surgical instrument after the processor module determines that the measured aggregate activation time of the surgical instrument has reached a target duration.

Abstract: A medical device is configured to generate an acceleration signal and a temperature signal. The device is configured to determine an activity metric from the acceleration signal that is representative of patient physical activity. In response to determining that the activity metric is equal to or greater than a previously determined activity metric, the device is configured to adjust a target cardiac pacing rate based at least on a temperature change determined from the temperature signal. The device may include a pulse generator for generating cardiac pacing pulses based on the target cardiac pacing rate.

Abstract: In an implanted medical device system, an internal controller, external power transmitter and methods for regulation of TETS power for an implanted medical device system are disclosed. According to one aspect, a method in an external power transmitter of an implanted medical device system includes determining a current in an external coil of the external power transmitter, multiplying the determined current by a supply voltage to determine a power delivered to the external coil, and controlling the power delivered to the external coil by adjusting the current in the external coil.

Abstract: In an implanted medical device system, an external power transmitter and methods for adjusting a rate of search pulse transmission by an external power transmitter of an implanted medical device system are disclosed. According to one aspect, a method includes detecting a condition of the external power transmitter, and selecting among rates of transmission of search pulses based on the detected condition.

Abstract: A stent-graft prosthesis includes a graft material having a tubular construction, a frame coupled to the graft material, and a port or opening disposed between a proximal end and a distal end of the graft material. The port or opening is open during deployment of the stent-graft prosthesis to enable blood flow from a graft lumen within the graft material to exit the graft lumen, and the port or opening is blocked upon full deployment of the stent-graft prosthesis to prevent blood flow from within the graft lumen from exiting the graft lumen through the port or opening.

Abstract: A system may include an emitting device and a controller. The emitting device may be adapted to emit a first laser beam and a second laser beam. The controller may include one or more processors and may be operably coupled to the emitting device to control emission of the first and second laser beams. The controller may be adapted to remove a portion of a workpiece to form an exposed surface of the workpiece with the first laser beam using the emitting device and to remove a portion of the exposed surface with the second laser beam using the emitting device.

Abstract: This disclosure is directed to devices, systems, and techniques for identifying a respiration rate based on an impedance signal. In some examples, a medical device system includes a medical device including a plurality of electrodes. The medical device is configured to perform, using the plurality of electrodes, an impedance measurement to collect a set of impedance values, where the set of impedance values is indicative of a respiration pattern of a patient. Additionally, the medical device system includes processing circuitry configured to identify a set of positive zero crossings based on the set of impedance values, identify a set of negative zero crossings based on the set of impedance values, and determine, for the impedance measurement, a value of a respiration metric using both the set of negative zero crossings and the set of positive zero crossings.

Abstract: An implantable medical device system receives a cardiac electrical signal produced by a patient's heart and comprising atrial P-waves and delivers a His bundle pacing pulse to the patient's heart via a His pacing electrode vector. The system determines a timing of a sensed atrial P-wave relative to the His bundle pacing pulse and determines a type of capture of the His bundle pacing pulse in response to the determined timing of the atrial P-wave.

Abstract: A monitoring system may include a processor and display system for displaying results from the monitoring. A user may be in a sterile field away from the processor and display system and selected input devices. A controller may be physically connected to the monitoring system from the sterile field to allow the user to control the monitoring system.

Abstract: A method of determining signal quality in a patient monitoring device includes acquiring one or more signals using the patient monitoring device. One or more signal quality metrics are determined based on the one or more acquired signals. A noise condition is detected based on the one or more signal quality metrics, and a determination is made whether the noise condition should be classified as intermittent or persistent. One or more actions are taken based on the classification of detected noise as intermittent or persistent.

Abstract: The disclosure is directed to rendering visual representations of VOAs by manipulating vertices of a three-dimensional (3-D) mesh structure. In one example, a processing circuitry of a computing device may receive a 3-D mesh structure having adjustable vertices. The processing circuitry may adjust the vertices to generate an adjusted shape of the 3-D mesh structure according to an intersection between activated tissue and non-activated tissue defined by one or more stimulation parameter values.

Abstract: A stent in a radially compressed configuration includes a plurality of first outer crowns and a plurality of second outer crowns, each of the first outer crowns and the second outer crowns connected by a strut of a plurality of struts. The plurality of first outer crowns and the plurality of second outer crowns are disposed at a crown angle in the range of about 15 degrees to about 35 degrees, the crown angle being defined by a line extending through a midpoint of a crown of the plurality of first outer crowns or the plurality of second outer crowns through a center of radius of the crown with respect to a line that is parallel to a central longitudinal axis of the stent.

Abstract: An implantable medical device is configured to determine a first atrial arrhythmia score from ventricular events sensed by a sensing circuit of an implantable medical device and determine a second atrial arrhythmia score from an intraventricular signal comprising atrial mechanical event signals attendant to atrial systole and produced by a sensor of the implantable medical device. An atrial arrhythmia is detected based on the first atrial arrhythmia score and the second atrial arrhythmia score.

Abstract: Devices, systems, and techniques are described to detect when a power transmitting and receiving system is in an inefficient position, which may cause a thermal response that less desirable than a more efficient position. The system may power transmitting device configured to wirelessly transfer electromagnetic energy to a power receiving device. Processing circuitry of the system may compute a target output power deliverable by the power transmitting device for a first duration and control the power transmitting device to output the target output power based in part on a heat limit. The processing circuitry may further calculate an energy transfer efficiency to the power receiving unit, update an adjustment factor based on the calculated energy transfer efficiency, and apply the adjustment factor to the heat limit for a subsequent duration.

Abstract: A sensor assembly for sensing a physiological characteristic includes a power source configured to deliver power to one or more components of an electrical subsystem upon deployment of the sensor assembly to a user. A power latch is configured to latch an output of a power control switch for delivery to one or more components of the electrical subsystem upon deployment of the sensor assembly to a user. The power control switch is configured to inhibit delivery of power to the electrical subsystem prior to deployment of the sensor assembly to a user and to deliver the latched output to one or more components of the electrical subsystem in response to deployment of the sensor assembly to a user.

Abstract: A monitoring system may include a processor and display system for displaying results from the monitoring. A user may be in a sterile field away from the processor and display system and selected input devices. A controller may be physically connected to the monitoring system from the sterile field to allow the user to control the monitoring system.

Abstract: Systems and methods for monitoring an electrosurgical unit (ESU), analyzing ESU system data, predicting future ESU maintenance, and updating the ESU using firmware over-the-air (FOTA).

Abstract: An intrathecal drug delivery system includes: an intrathecal drug delivery device configured to deliver a fluid containing one or more pharmaceutical agents intrathecally to the cerebrospinal fluid (CSF) within a spinal canal of a patient and a deep brain catheter having an elongated body, extending from a distal end implanted within a deep brain structure of a patient and a proximal end positioned within the subarachnoid space directly adjacent to the brain to provide a passageway, via an inner lumen, between the subarachnoid space and the deep brain structure. The drug delivery system is configured to transport the pharmaceutical agent(s), using diffusion and the pulsatile flow of the CSF, through the deep brain catheter from the subarachnoid space to the deep brain structure.