Abstract: An active implantable medical device includes a detection electrode and a pulse generator. The pulse generator is configured to collect via the detection electrode at least two EGM signals, combine the EGM signals into two time components, and combine the components into a single 2D parametric characteristic representing the cardiac cycle. During a tachyarrhythmia episode, the device measures stores values of a cycle-to-cycle variation in an amplitude of the at least one of the EGM signals, distributes the amplitude variation values into a plurality of classes, each class corresponding to an amplitude interval, and analyzes a size of each of the plurality of classes to deliver at least one of an indicator of suspicion of an artifact of extracardiac origin or an indicator of a type of tachyarrhythmia selectively as a function of at least one predetermined criterion applied to the distribution of the amplitude variation values.

Abstract: The present invention relates to a system of multiple implantable medical devices for an impedance measurement comprising a first implantable medical device, at least a second implantable medical device distinct from the first implantable medical device and; an analysis module comprising at least one amplifier and one envelope detector, one of the first implantable medical device or the second implantable medical device being a subcutaneous implantable cardioverter defibrillator or a subcutaneous loop recorder, and the other of the first implantable medical device or the second implantable medical device being an implantable endocardial device.

Abstract: This system includes a conductor microcable and an insulating microcatheter, including a hollow tube housing the microcable with the possibility of relative axial translation therebetween. The microcatheter is suitable for permanent implantation. The microcatheter, in its distal portion, includes at least one lateral window formed by a through orifice formed on the wall of the hollow tube. The window forms a stimulation site defined on the wall of the target vein facing the window of the microcatheter, and provides for a region of the microcable surface located at the window to form a stimulation electrode. In its distal portion, the microcable is not isolated at least in the region of the window of the microcatheter. The microcatheter is telescopically moveable on the microcable, so as to modify the position of the stimulation site of the target vein.

Abstract: The present disclosure relates to an implantable medical device, in particular a cardiac defibrillator, comprising an implantable defibrillator configured to generate an electrical defibrillation signal, an implantable electrode connected with the implantable defibrillator by a lead and configured to deliver the electrical defibrillation signal to a patient, an implantable sensor configured to detect mechanical vibrations by the heart of the patient and to provide a detection signal based on the detected mechanical vibrations, and a controller configured to analyze the detection signal to determine at least one parameter characterizing the mechanical vibrations and to initiate a defibrillation operation of the implantable defibrillator based on the determined parameter characterizing the mechanical vibrations.

Abstract: A cardiac defibrillation system. The system comprising a housing and an implantable lead. The implantable lead comprising two ends, including a first end connected to the housing and a second end being a free end. The implantable lead also comprising a defibrillation electrode and at least three detection electrodes including a first detection electrode, a second detection electrode, and a third detection electrode. The first detection electrode and the second detection electrode forming a first dipole. The third detection electrode and the first detection electrode, or, the third detection electrode and the second detection electrode, or, the housing and one of said detection electrodes, forming a second dipole, where a length of the first dipole is between 5 and 50 millimeters and a length of the second dipole is between 50 and 400 millimeters.

Abstract: The present disclosure relates to an explantation assembly for retrieving an intracorporeal capsule implanted in a tissue of a patient comprising a first tube and a second tube. The first tube comprises a snare and a tissue. The second tube is configured to interact with the snare of the first tube and configured to be attached to the tissue of the patient.

Abstract: A method for determining usable capacity of a battery of an active implantable medical device comprising a radiofrequency (RF) communication unit for transmitting data by RF over a communication period, wherein the usable capacity of the battery enables the active implantable medical device to transmit data by RF via the RF communication unit. The method includes measuring a value for the voltage of the battery which is representative of an instantaneous voltage drop of the battery as a result of a current draw on the battery, comparing the voltage of the battery with a predetermined threshold voltage VBS, and transmitting an alert message to a second device when the measured voltage of the battery crosses the predetermined threshold voltage.

Abstract: A method of manufacturing a lead. The method includes providing a supporting tube, and disposing a conductive strip on an outer surface of the supporting tube such that the conductive strip extends in an axial direction along a length of the supporting tube. The method also includes mounting a chip having a first conductive contact pad and a second conductive contact pad to the supporting tube such that the first conductive contact pad is in contact with the conductive strip. The method further includes fitting an electrode to the supporting tube such that the electrode is in contact with the second conductive contact pad, and coupling a conductor to each end of the supporting tube such that each conductor is in contact with the conductive strip. The method also includes covering at least one of the chip and the conductors with a sheath to provide the lead.

Abstract: The present invention relates to a medical device, in particular to an implantable medical device, comprising at least one implantable or non-implantable hemodynamic sensor configured for detecting hemodynamic cardiac signals, a controller configured for processing and analyzing the detected cardiac hemodynamic signals or signals derived from the detected cardiac hemodynamic signals by applying to said signals a Teager Energy Operator (TEO). The controller further comprises at least one algorithm configured to determine the need for a defibrillation operation by taking into account the at least one output hemodynamic signal. The present invention also provides a method and software for detecting or treating a ventricular fibrillation episode by taking into account cardiac hemodynamic signals.

Abstract: A subcutaneous cardiac defibrillation system implantable comprising a housing and a subcutaneous implantable lead comprising a proximal end connected to the housing and a distal free end. The subcutaneous implantable lead comprises at least one defibrillation electrode and at least three detection electrodes. The first detection electrode and the second detection electrode form a first dipole, and the third detection electrode and the first detection electrode, or the third detection electrode and the second detection electrode, or the housing and one of said detection electrodes, form a second dipole. The defibrillation electrode is positioned between the second detection electrode and the third detection electrode, the first dipole is positioned between the housing and the defibrillation electrode, the third electrode is positioned between the free distal end of the lead and the defibrillation electrode, and the length of the first dipole is shorter than the length of the second dipole.

Abstract: This disclosure relates to a communication amplification device for an implantable capsule, in particular for an autonomous cardiac stimulation capsule. The amplification device comprises a first holding element and a second element configured to hold the implantable capsule. The first holding element is configured to receive the distal end of the capsule and the second holding element is configured to receive the proximal end of the capsule. The first holding element comprises a communication amplification antenna configured to couple to a distal electrode of the capsule.

Abstract: A subcutaneous lead for an implantable cardiac device, in particular for a defibrillator or/and a pacemaker comprising a lead body, itself comprising at least one sensing electrode and an insulating sleeve into which the lead body is threaded so that the insulating sleeve and the lead body are movable relative to each other so as to at least partially cover the at least one sensing electrode with the insulating sleeve.

Abstract: The invention relates to an active implantable medical device comprising a processing unit able to be alternately operated during a predetermined period of activity and on standby during a standby period in a cyclical manner, and means for acquiring data relating to physiological and/or physical activity. The device also comprises means for calculating a frequency analysis of the data acquired, said calculating means being capable of successively perform part of the frequency analysis during periods of activity of the processing unit.

Abstract: An assembly including an autonomous capsule having an anchoring member adapted to penetrate tissue of the heart and an accessory for implantation of the capsule. The accessory includes a steerable catheter with an inner lumen, having at its distal end a tubular protection tip defining a volume for housing the capsule. The accessory also includes a disconnectable attachment mechanism for supporting and guiding the capsule to an implantation site and a sub-catheter housed within the lumen of the steerable catheter, moveable in translation and in rotation relative to the steerable catheter. The sub-catheter and the capsule are movable between a retracted position and a position wherein the capsule is deployed out of the protection tip. The sub-catheter and the capsule are provided with a first fastening mechanism for fastening the two in translation and in mutual rotation, which is disconnectable under a rotation applied to the sub-catheter.

Abstract: An active implantable medical device includes a VNS pulse bursts generator for stimulation of the vagus nerve according to several selectable configurations. The device may further include a sensor of the current activity level of the patient. The generator is controlled on the activity signal via a classifier determining the class of the current level of activity among a plurality of classes of activity. A controller selects a configuration of VNS therapy depending on the class of activity thus determined. Limits of the activity classes are dynamically changeable by a calibration module that conducts a historical analysis of the successive current activity levels over a predetermined analysis period. The calibration module can prepare a histogram of the historical analysis, and can define the limits of the activity classes depending on the outcome of the historical analysis and the histogram.

Abstract: The present invention relates to a method for connecting a strand of a multi-strand cable to an electrode of an implantable medical device. The method includes cutting a strand of the multi-strand cable lifting at least one of the free ends, stripping the end of the lifted strand, placing an electrode around the multi-strand cable to partially cover the end of the lifted and stripped stand, and connecting at least one portion of the stripped end of the strand to the electrode.

Abstract: A method and a medical device for implementing a dual-chamber pacing mode without ventricular pacing are disclosed. The method includes: obtaining pacing mode information configured by a user; controlling a dual-chamber pacemaker to operate in an ADD mode and detecting whether there is a need for delivering a pace; and performing a predetermined interruption process if a need for delivering a pace is detected. The predetermined interruption process includes: 2041) determining whether a chamber to be subsequently paced is a ventricle; 2042) if it is determined that the chamber to be subsequently paced is a ventricle, determining whether there is a need for delivering a real ventricular pace; 2043) if delivery of a real ventricular pace is not needed, delivering a virtual ventricular pace VVP and resetting a first atrial escape interval; and returning after the predetermined interruption process is terminated.

Abstract: A communication system for enabling a writing operation in a memory of an implantable medical device. The communication system includes an intermediate proximity device configured to receive writing data transmitted by a main writing device, the intermediate proximity device configured to communicate with the implantable medical device. The system also includes a first external unlocking tool configured to transmit a detectable signal when the first external unlocking tool is located within a predetermined perimeter of the implantable medical device, where the intermediate proximity device is configured to cause the implantable medical device to write the writing data into the memory of the implantable medical device when the first external unlocking tool is in the predetermined perimeter of the implantable medical device.

Abstract: An active implantable medical device for neurostimulation therapy is disclosed. The device produces stimulation pulse sequences generated continuously in succession during activity periods separated by intermediate inactivity periods during which no stimulation is issued. An input signal, provided by a physiological sensor, representative of cardiac activity and/or of the patient's hemodynamic status is received by circuitry. The circuitry further provides for dynamic control of the neurostimulation therapy, wherein the length of activity periods is modulated based on the current value level of the control parameter compared to a threshold. The duration of the next period of inactivity is calculated by the circuitry at the end of each activity period to maintain a constant duty cycle ratio between periods of activity and periods of inactivity.

Abstract: The implant including an elongated tubular body, having at a first end a releasable device connected to an installation lead, and at a second end a member for anchoring to a heart wall, the tubular body housing a frame supporting an electronic unit. The implant further comprises an accelerometer. This accelerometer comprises a piezoelectric blade extending in cantilever from an embedding section of the frame, in a direction going from the first end to the second end.