A cardiac catheter having electrodes, including a number of elastic individual carriers, which are each connected to a distal end region of the catheter, wherein the carriers each have a longitudinal axis, a number of electrodes per carrier, wherein the electrodes are arranged in lines on an outside of the respective carrier, the lines extend perpendicular to the longitudinal axis, and a mechanism configured so that the carriers, after an insertion of the distal end region of the cardiac catheter into a subspace of a heart, are capable of being reversibly brought from a first state into a second state, wherein the mechanism spreads out the carriers in the first state such that the electrodes are each applied to an inner surface of the subspace, and the mechanism closes the carriers in the second state such that the catheter having the carriers is removable from the subspace.

An intraseptal multi-electrode cardiac pacemaker has a plurality of first individual electrodes implanted at an interventricular septum at varying depths and/or lateral distances from the distal end of a flexible conduit and configured to provide a cardiac pacing therapy by stimulating left bundle branch conduction fibers. A plurality of second individual electrodes may also be implanted in the septum at suitable depths to stimulate conduction fibers of the right bundle branch. After implantation, first and second individual electrodes are interrogated to select a subset of electrodes suitable to deliver the pacing therapy according to a predetermined criterion such as capturing the left ventricle or capturing the right ventricle via normal conduction system of the heart at the lowest voltage level via corresponding bundle branches. A combination of the pacemaker with a cardioverter/defibrillator is provided by positioning a defibrillator coil near the distal end of the flexible conduit of the pacemaker.

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.

A device for providing cardiac pacing of triangle of Koch and bundle of His zones by multiple electrodes inserted using in a single conduit is disclosed. The single conduit includes a plurality of individual electrodes capable of expanding from the distal end and forming a scattered pattern once deployed in the heart. Individual or group testing against a predetermined acceptance criterion is used to select a subset of individual electrodes for use in cardiac pacing.

A leadless pacing device may include a housing having a proximal end and a distal end, and one or more electrodes supported by the housing. The housing may include a body portion and a header. A distal extension may extend distally from the header of the housing, the distal extension including one or more electrodes. The header may include a guide wire port and a guide wire lumen may extend from the guide wire port through the header of the housing and through the distal extension. A fixation member may extend from the header of the housing. The header may be formed from an over mold process.

Systems, methods, and devices are described herein for determining cardiac conduction system capture of ventricle from atrium (VfA) therapy. VfA therapy may be delivered at a plurality of different A-V delays while electrical activity of the patient is monitored. The electrical activity may then be utilized to determine whether the cardiac conduction system of the patient has been captured by the VfA therapy.

A lead for use with cardiac stimulus device with at least two electrodes positioned at a single longitudinal location is provided. The electrodes may include a shocking coil electrode and a sensing and/or pacing ring electrode and may be separated by an insulating element. The at least two electrically insulated electrodes may be electrically isolated and serve separate purposes in the device.

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.

An intraseptal multi-electrode cardiac pacemaker has a plurality of first individual electrodes implanted at an interventricular septum at varying depths and/or lateral distances from the distal end of a flexible conduit and configured to provide a cardiac pacing therapy by stimulating left bundle branch conduction fibers. A plurality of second individual electrodes may also be implanted in the septum at suitable depths to stimulate conduction fibers of the right bundle branch. After implantation, first and second individual electrodes are interrogated to select a subset of electrodes suitable to deliver the pacing therapy according to a predetermined criterion such as capturing the left ventricle or capturing the right ventricle via normal conduction system of the heart at the lowest voltage level via corresponding bundle branches. A combination of the pacemaker with a cardioverter/defibrillator is provided by positioning a defibrillator coil near the distal end of the flexible conduit of the pacemaker.

An intraseptal multi-electrode cardiac pacemaker has a plurality of first individual electrodes implanted at an interventricular septum at varying depths and/or lateral distances from the distal end of a flexible conduit and configured to provide a cardiac pacing therapy by stimulating left bundle branch conduction fibers. A plurality of second individual electrodes may also be implanted in the septum at suitable depths to stimulate conduction fibers of the right bundle branch. After implantation, first and second individual electrodes are interrogated to select a subset of electrodes suitable to deliver the pacing therapy according to a predetermined criterion such as capturing the left ventricle or capturing the right ventricle via normal conduction system of the heart at the lowest voltage level via corresponding bundle branches. A combination of the pacemaker with a cardioverter/defibrillator is provided by positioning a defibrillator coil near the distal end of the flexible conduit of the pacemaker.