Methods and system for atrial fibrillation mapping utilizing cardiac mapping based on medical image(s). The methods and system also adapted for any balloon based catheters including cryoballoon catheter, laser balloon catheter, or “hot balloon” catheter, as well as circular catheters. The methods and system includes overlaying of two or more images on top of each other (where the images are of various types or modalities) and aligning the images, where the transparency between the images can be adjusted for navigating and optimal placement of the balloon based catheters or circular catheters. The cardiac system also adopted for guiding optimal placement of the left ventricular (LV) lead placement for cardiac re-synchronization (CRT) therapy, and for mapping and displaying activation times from various branches of the coronary sinus for optimizing CRT therapy.

The capsule includes a tubular body and a front-end unit including an anchoring member for the anchoring of the capsule to a wall of a patient's organ. The front-end unit is mobile in relative axial rotation with respect to the tubular body, and a disengageable coupling member is adapted to allow this relative rotation when the tubular body receives an external rotational stress, the anchoring member then exerting a reaction torque higher than a predetermined threshold torque, and to prevent the relative rotation in the absence of external rotational stress applied to the tubular body. The coupling member may in particular include, between the front-end unit and the tubular body, a friction interface, with an elastically deformable element applying an axial compression between a bearing face of the tubular body and a support ring integral with the anchoring member.

This document discusses, among other things, systems and methods to generate a first pacing waveform during a first pacing period and a second pacing waveform during a second pacing period, and alternate the first and second pacing periods to provide pacing-based hypertension therapy to a heart of a patient to reduce patient blood pressure, wherein the first pacing waveform has a first atrioventricular (AV) delay and the second pacing waveform has a second AV delay longer than the first AV delay. Physiologic information can be received from the patient, and one of the first or second pacing period for delivery to the patient can be determined using the received physiologic information.

A medical delivery device for delivering a medical device includes a navigable elongated member, a deployment bay, and a compression mechanism. The deployment bay may be configured to house the medical device as the medical device is navigated to the target site. The deployment bay may be at a distal end of the delivery device and may include a distal opening through which the medical device may be deployed. The compression mechanism is configured to longitudinally compress in response to a predetermined force such that the elongated member and deployment bay are relatively closer together along a longitudinal axis of the delivery device.

An implantable medical device includes an electronic processing device configured for processing a physiological signal, a memory, and a communication device for communicating with an external device. The processing device includes a coding module for coding the physiological signal to obtain an output signal for transmission by the communication device to the external device. The coding module is configured to encode the physiological signal using at least one fixed Huffman code table stored in the memory to obtain the output signal.

A patient diagnostic system comprises at least one implantable device configured to record one or more patient physiologic parameters. The at least one implantable device comprising one or more of each of the following implantable sensors: an accelerometer; a pressure sensor; a temperature sensor; an acoustic sensor; and a pair of electrodes. At least one external device configured to produce data can also be included in the system.

A splittable sheath for an implantable medical device can include a jacket having an outer diameter and an inner diameter. A lumen can be defined by the inner diameter and extended from a proximal end to a distal end of the jacket. An electrode can be located at the distal end of the jacket. A signal wire can be disposed within the jacket and can be electrically coupled to the electrode. A rail can be configured to shield the signal wire from a cut path of a sheath splitter. In some examples, the sheath can further include a second rail. For instance, the signal wire can be located between a first rail and a second rail along the length of the sheath. The cut path can be located between the first rail and the second rail on a radially opposing side of the sheath from the signal wire.

Systems and methods for determining the positioning of intracardiac devices, such as intracardiac blood pump assemblies, using electrical sensors configured to sense electrical potential as it propagates through the heart. In one example, the present technology provides an intracardiac device with one or more electrical sensors mounted thereon, and a controller configured to determine the absolute or relative location of the intracardiac device based on the timing, shape, and/or amplitude of the electrical signals received from the one or more sensors.

An energy harvester includes a pendular unit subjected with a piezoelectric beam coupled to an inertial mass. On the clamped side of the beam, a beam frame includes two pressing elements between which the beam is taken in sandwich, each including i) an intermediate part, an internal face of which presses on a corresponding face of the beam, and ii) a pressure plate, an internal face of which presses on an external face of the intermediate part, a printed circuit board being interposed between them. The intermediate parts and the pressure plates are passed through by at least one common transverse bore receiving a locking pin. The intermediate parts, the pressure plates and the pin are each massive metal parts ensuring a direct electrical and mechanical contact with the electrodes of the beam and with the printed circuit boards.

A device for detecting acute coronary syndrome (ACS) events, arrythmias, heart rate abnormalities, medication problems such as non-compliance or ineffective amount or type of medication, and demand/supply related cardiac ischemia is disclosed. The device may have both implanted and external components and can communicate with other user devices such as smartphones and smartwatches for monitoring and alerting in response to detected medically relevant events or states of a patient. The processor is configured to provide event detection based upon various criteria including what is found to be statistically abnormal for a patient or what has been defined by a doctor to be abnormal. A patient's cardiovascular condition can be tracked over time using histogram, trend, and summary information related to heart rate and/or cardiac features such as those measured from the S-T segment of heartbeats. Heartbeats that are elevated but which are below what is defined as high, are used to provide medically relevant detections.