Abstract: Example devices, systems, and techniques predict renal denervation efficacy for reducing hypertension in a patient based on pulse information. For example, a system may include processing circuitry configured to obtain pulse information representative of pulses from both wrists of a patient, obtain a plurality of values representative of respective patient metrics for the patient, and apply the pulse information and the plurality of values to a deep learning model trained to represent a relationship of the pulse information and the patient metrics to an efficacy of renal denervation in reducing hypertension. In some examples, responsive to applying the pulse information and the plurality of values to the deep learning model, the processing circuitry obtains, from the deep learning model, a score indicative of renal denervation efficacy in reducing hypertension for the patient, and generates a graphical user interface comprising a graphical representation of the score for the patient.

Abstract: A tool has an outer assembly, which includes a deployment tube, extending around, and moveable with respect to an inner assembly of the tool; the inner assembly includes a single pull wire and a distal member configured to engage an end of an implantable medical device. The deployment tube includes an articulating segment located just proximal to an enlarged distal-most portion, which contains the device and the distal member. Relatively soft and stiff sections of a composite sidewall define the articulating segment and extend alongside one another, such that, when the pull wire is actuated, the composite sidewall causes bending of the segment in two directions. A handle assembly of the tool includes a control member for the pull wire, and may further include a flushing subassembly that has a connector port located at an end of the handle assembly that is opposite a proximal port of the handle.

Abstract: An imaging device for obtaining 360-degree images of an anatomical feature of a patient or of another object includes an open ring having a first end, a second end, and an axis, the open ring defining an outer arc and an inner arc; a support arm configured to support the open ring and to rotate the open ring about the axis; a track extending along the open ring; a source movably disposed on the track and operable to generate signals useful for imaging; and a detector movably disposed on the track, the detector operable to detect signals generated by the source. Movement of the source and detector along the track, coupled with rotation of the open ring about the axis, enables the source and detector to travel at least 360 degrees about the axis.

Abstract: Techniques disclosed herein relate to nutritional content determination based on gesture detection data. In some embodiments, the techniques involve obtaining gesture detection data corresponding to consumption of a food item or a drink; determining, based on the gesture detection data, nutritional content of the food item or the drink; and causing delivery of insulin in accordance with the nutritional content of the food item or the drink.

Abstract: A leadless neurostimulation device having a header unit including at least one primary electrode having a contact surface that defines an external surface of the leadless neurostimulation device, a housing including a secondary electrode positioned on the same side of the leadless neurostimulation device as the at least one primary electrode, and a anchor device including at least one suture point for securing the leadless neurostimulation device to patient tissue or at least one protrusion nub configured to create mechanical resistance that impedes relative movement between wherein the leadless neurostimulation device and the patient tissue when implanted, where the at least one primary electrode and the secondary electrode are configured to transmit an electrical stimulation signal therebetween to provide electrical stimulation therapy to a target nerve of a patient.

Abstract: An intracardiac ventricular pacemaker is configured to detect a ventricular diastolic event from a motion signal received by a pacemaker control circuit from a motion sensor. The control circuit starts an atrial refractory period having an expiration time set based on a time of the detection of the ventricular diastolic event. The control circuit detects an atrial systolic event from the motion signal after expiration of the atrial refractory period and controls a pulse generator of the pacemaker to deliver a pacing pulse to a ventricle of a patient's heart at a first atrioventricular pacing time interval after the atrial systolic event detection.

Abstract: Systems and methods for performing registration between a patient space and an image space are disclosed herein. Systems using such methods may identify a pose of a registration frame having one or more apertures within the patient space using a tracking system. Image data corresponding to the image space having an image of the registration frame is taken. A plurality of aperture locations within the image data (corresponding to the apertures of the registration frame) are identified in the image data. Aperture representations from a model of the registration frame are matched to these aperture locations to determine a pose of the registration frame within the image space. A transform between the patient space and the image space is generated based on the pose of the registration frame within the patient space and the pose of the registration frame within the image space. Optimization methods for this transform are discussed.

Abstract: Disclosed is a system for recharging a selected power source wirelessly, such as through a power transmission. The power source may be positioned within a subject and be charged wirelessly through the subject, such as tissue of the subject. A thermal transfer system is provided to transfer or transport thermal energy from a first position to a second position, such as away from the subject.

Abstract: A transcatheter heart valve delivery assembly includes a first shaft portion including a first wall surrounding a first chamber. A second shaft portion is attached to a distal end of the first shaft portion and includes a second wall surrounding a second chamber. A funnel portion is attached to a distal end of the second shaft portion and includes a funnel wall surrounding a funnel chamber. The funnel portion moves between a radially-compressed position, in which the funnel chamber includes a first diameter that is less than or equal to a diameter of the second chamber, and a radially-expanded position, in which the funnel chamber includes a second diameter that is greater than the first diameter. The funnel portion is biased into the radially-compressed position. Methods of recapturing a heart valve prosthesis are provided.

Abstract: Prosthetic heart valves each includes a link extending along an axial direction and an axial frame. The axial frame includes a plurality of struts comprising a plurality of inner struts pivotally attached to a plurality of outer struts at a plurality of pivot nodes. A first pivot node of the plurality of pivot can be attached to the link and a second pivot node of the plurality of pivot nodes can move relative to the link in the axial direction. Methods of radially expanding a prosthetic heart valve can comprise radially expanding the radially expandable frame from a radially retracted orientation to a radially expanded orientation while the second pivot node axially translates relative to the link.

Abstract: A loading device for loading a graft-stent into a graft cover includes an eye shaft, an adjustment shaft, a rod, and a collar. The eye shaft includes an eyelet disposed at a first end of the eye shaft. The adjustment shaft includes a first portion adjustably coupled to a second end of the eye shaft opposite the first end of the eye shaft such that an overall length of the loading device may be lengthened or shortened via the adjustment shaft. The rod is coupled to a second portion of the adjustment shaft opposite the first portion of the adjustment shaft. The collar is disposed over the rod and includes a collar lumen configured to receive a suture between an inner surface of the collar and an outer surface of the rod.

Abstract: Hemostatic springs and hemostatic seals comprising hemostatic springs facilitate introducing a surgical device into the vasculature of a patient during a surgical procedure. Each hemostatic spring comprises a radial array of spring segments positioned on a circular path about a central axis. Each hemostatic seal is configured to reduce an axial length of the hemostatic spring to constrict the radial array of spring segments to reduce a cross-sectional area of the central passage. Methods include axially inserting the surgical device into the hemostatic seal while compression from the hemostatic seal minimizes fluid leakage. Methods can further include reducing a frictional force of inserting the device into the hemostatic seal by reducing the axial compression to dilate the hemostatic spring.

Abstract: Systems, devices, and techniques are described for calibrating a medical device that senses ECAP signals from a patient's nerve tissue. For example a method includes instructing, with processing circuitry, stimulation circuitry of a medical device to deliver, on stimulation electrodes of the medical device, an electrical stimulation signal having an amplitude substantially equal to zero to a patient, entering, with the processing circuitry subsequent to instructing the stimulation circuitry to deliver the electrical stimulation signal, a passive recharge state on stimulation electrode circuitry, and auto-zeroing, with the processing circuitry, inputs to an operational amplifier of sensing circuitry electrically coupled to sensing electrodes of the medical device while the stimulation electrode circuitry is in the passive recharge state.

Abstract: A fixation component includes tines extending from a base portion of the fixation component. Each tine is elastically deformable between a pre-set position and an open position. Each tine includes a hook segment extending from a proximal end near the base portion to a distal end. Each tine also includes a distal segment extending from the distal end of the hook segment to a tissue-piercing tip. When positioned in the pre-set position, the hook segment extends along a pre-set curvature that encloses an angle between 135 degrees and 270 degrees, and the distal segment extends away from a longitudinal axis of the fixation component.

Abstract: Devices, systems, and methods used to register medical image data with anatomical positions are disclosed. The image data is captured by an imaging system over a period of time. The positions are determined by one or more modalities over the period of time. The positions are collected into position data, and determinations are made as to which position data is best for registering the image data with patient anatomy and for reconstructing 3D images of the patient anatomy.

Abstract: A method for ablating tissue by applying at least one pulse train of pulsed-field energy. The method includes delivering a pulse train of energy having a predetermined frequency to cardiac tissue, the pulse train including at least 60 pulses, an inter-phase delay between 0 ?s and 5 ?s, an inter-pulse delay of at least 5 ?s, and a pulse width of 5 ?s.

Abstract: Devices including a capsule having an interior and a clamp assembly including a plurality of clamps. Each clamp includes a first arm having a first free end and a second arm having a second free end. The device includes a clamp assembly including a compacted state in which the plurality of clamps are compressed within the capsule and a deployed state in which at least the free ends of the plurality of clamps are positioned outside of the interior of the capsule. The first free end is closer to the second free end in the compacted state as compared to the deployed state. The device can further include a push rod releasably secured to the clamp assembly and a delivery rod releasably secured to the capsule. Methods of using the devices are also disclosed.

Abstract: Systems, devices, methods, and techniques are described for using evoked compound action potential (ECAP) signals to monitor lead position and/or detect lead migration. An example system includes sensing circuitry configured to sense an ECAP signal, and processing circuitry. The processing circuitry controls the sensing circuitry to detect, after delivery of an electrical stimulation pulse, a current ECAP signal, and determines one or more characteristics of the current ECAP signal. The processing circuitry also compares the one or more characteristics of the current ECAP signal to corresponding one or more characteristics of a baseline ECAP signal, and determines, based on the comparison, a migration state of the electrodes delivering the electrical stimulation pulse. Additionally, the processing circuitry outputs, based on the migration state, an alert indicative of migration of the electrodes.

Abstract: Systems and methods are described herein for use in synchronizing electrical activity monitored by a plurality of external electrodes with supplemental cardiac data for use in evaluating a patient's cardiac condition and configuring cardiac therapy. The supplemental cardiac data may include one or more markers indicative of the occurrence of cardiac events and/or data representative of representative of at least one of cardiac electrical signals, cardiac sounds, cardiac pressures, blood flow, and an estimated instantaneous flow waveform provided by a left ventricular assist device.

Abstract: Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric vehicles, and medical devices, among others. Such devices can prevent localized overheating of the device.