Abstract: The present invention is a myocardial lead attachment system for securing a lead within the myocardium. The attachment system includes an anchor configured to engage the heart, a tether coupled to the anchor and a lead body. The lead body has a proximal end, a distal end, a lumen for accepting the tether and a lock housing in the lumen. A lock structure is on the tether and mates with the lock housing and restrains motion of the lead with respect to the tether in either of a proximal or a distal direction.

Abstract: A myocardial lead attachment system for securing a distal end of a lead within a myocardium of a patient's heart. The system includes a lead body, an anchor mechanism formed of a bioabsorbable or biodegradable polymer for engaging a surface of the patient's heart and a surface feature formed on a portion of the lead body for promoting formation of scar tissue around said portion of the lead body.

Abstract: The present invention is a myocardial lead attachment system for securing a distal end of a cardiac lead within a myocardium of a patient's heart and anchoring against an epicardium of the patient's heart. The system includes an anchor configured to advance in a first orientation and anchor against an epicardial surface in a second orientation and a tether having a proximal end and a distal end. The anchor is coupled to the distal end of the tether. The system includes a cardiac lead having a lead body, a lumen extending through the lead body, a conductive member, a proximal end, a distal end, and an electrode configured for stimulating the myocardium located at the distal end. The lead body and the lumen are configured such that the lead body can be threaded over the proximal end of the tether and slideably advanced over the tether toward the anchor during implantation. The system includes a fixation mechanism at the distal end of the cardiac lead.

Abstract: The present invention is a myocardial lead attachment system and method for securing a distal end of a lead within the myocardium of a patient's heart. The system includes an anchor, a tether coupled at a distal end to the anchor and a lead body. The lead body has a proximal end, a distal end, and a lumen extending therethrough for receiving the tether. A fixation mechanism is at the distal end of the lead body, and is adapted to collapse to a first configuration during implantation and deploy to a second configuration after implantation.

Abstract: A myocardial lead attachment system for securing a distal end of a lead within a myocardium of a patient's heart. The system includes a lead body, an anchor mechanism formed of a bioabsorbable or biodegradable polymer for engaging a surface of the patient's heart and a surface feature formed on a portion of the lead body for promoting formation of scar tissue around said portion of the lead body.

Abstract: The present invention is a myocardial lead attachment system for securing a distal end of a lead within a myocardium of a patient's heart. The system includes an anchor, a tether coupled to the anchor, and a delivery instrument for receiving and advancing the anchor through a tract in the heart from a proximal entrance site to a distal exit site in such a manner that the tether extends proximally from the anchor through the tract. The delivery instrument includes a needle having a distal tip and a nest. The nest is positioned proximal to the distal tip and is sized to receive the anchor. The delivery instrument further includes an ejection mechanism for ejecting the anchor from the nest.