Abstract: Implantable devices and systems include one or more leads adapted to be emplaced in the internal thoracic vein (ITV) of a patient. The lead may include features to adapt the lead for such placement. An associated device for use with the lead may include operational circuitry adapted for use with a lead having an electrode for sensing and/or therapy purposes coupled thereto. Methods for implantation and use of such devices and systems are disclosed as well.

Abstract: Implantable devices and systems include one or more leads adapted to be emplaced in the internal thoracic vein (ITV) of a patient. The lead may include features to adapt the lead for such placement. An associated device for use with the lead may include operational circuitry adapted for use with a lead having an electrode for sensing and/or therapy purposes coupled thereto. Methods for implantation and use of such devices and systems are disclosed as well.

Abstract: Implantable devices and systems include one or more leads adapted to be emplaced in the internal thoracic vein (ITV) of a patient. The lead may include features to adapt the lead for such placement. An associated device for use with the lead may include operational circuitry adapted for use with a lead having an electrode for sensing and/or therapy purposes coupled thereto. Methods for implantation and use of such devices and systems are disclosed as well.

Abstract: Implantable devices and systems include one or more leads adapted to be emplaced in the internal thoracic vein (ITV) of a patient. The lead may include features to adapt the lead for such placement. An associated device for use with the lead may include operational circuitry adapted for use with a lead having an electrode for sensing and/or therapy purposes coupled thereto. Methods for implantation and use of such devices and systems are disclosed as well.

Abstract: An implantable lead assembly includes a lead body extending from a proximal end to a distal end having an intermediate portion therebetween, where the lead body includes an insulating layer. A conductor is disposed within the insulating layer and the insulating layer surrounds the conductor. An electrode is coupled to the lead body, and the electrode is in electrical communication with the conductor. At least one conductive sleeve is disposed within the insulating layer. The at least one conductive sleeve surrounds the conductor and is electrically isolated from the electrode. The at least one conductive sleeve has a first impedance value in a first condition.

Abstract: An implantable lead assembly includes a lead body extending from a proximal end to a distal end having an intermediate portion therebetween, where the lead body includes an insulating layer. A conductor is disposed within the insulating layer and the insulating layer surrounds the conductor. An electrode is coupled to the lead body, and the electrode is in electrical communication with the conductor. At least one conductive sleeve is disposed within the insulating layer. The at least one conductive sleeve surrounds the conductor and is electrically isolated from the electrode. The at least one conductive sleeve has a first impedance value in a first condition.

Abstract: This document discusses, among other things a cardiac lead with first and second electrodes electrically interconnected by back-to-back diodes or another conductivity control device. During sensing of intrinsic electrical heart signals, these electrodes are isolated from each other by the conductivity control device. This reduces noise during sensing. During pacing or defibrillation, these electrodes are electrically connected to each other by the conductivity control device. When used in common as a return path electrode, this avoids unintentional stimulation of the heart at the return path electrode instead of at the stimulating electrode. The electrodes can also share a common conductor from one of the electrodes back to a proximal end of the lead.

Abstract: An endocardial lead includes a lead body extending from a proximal end to a distal end and an electrode coupled to the lead body. The lead body and the electrode each have an outer surface adapted to passively prevent formation of clots on the outer surfaces.

Abstract: An implantable lead assembly includes a lead body extending from a proximal end to a distal end having an intermediate portion therebetween, where the lead body includes an insulating layer. A conductor is disposed within the insulating layer and the insulating layer surrounds the conductor. An electrode is coupled to the lead body, and the electrode is in electrical communication with the conductor. At least one conductive sleeve is disposed within the insulating layer. The at least one conductive sleeve surrounds the conductor and is electrically isolated from the electrode. The at least one conductive sleeve has a first impedance value in a first condition.

Abstract: An electro-medical system includes a porous covering that has a pore structure to resist in vivo fibrotic tissue ingrowth. The system includes an electrode where the porous covering includes a porous communication through the covering to the electrode. The system includes a can that is covered with the porous covering. The system also includes a can with a dielectric coating over the can, and the porous covering allows for a hot can. The system also includes a lead with a dielectric coating over the lead.

Abstract: An intraluminal catheter, such as a guiding catheter, employed for intravascular procedures and having an inner liner formed of expanded Ultra High Molecular Weight Polyethylene (UHMWPE) is disclosed. The expanded UHMWPE is microporous and has an oriented microstructure structure characterized by nodes interconnected by fibrils. The inner liner formed of expanded UHMWPE is very thin to maximize the inner lumen diameter and has excellent mechanical properties.