Distal or proximal fixation of over-the-tether myocardial leads
First Claim
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1. A myocardial lead attachment system for securing a lead within the myocardium, the system comprising:
- an anchor configured to engage the heart;
a tether coupled to the anchor and a lock structure on the tether; and
a lead body having;
a proximal end and a distal end, a lumen for accepting the tether, and a lock housing in the lumen, wherein the lock structure mates, with the lock housing and restrains motion of the lead body with respect to the tether in either of a proximal or a distal direction.
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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.
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Citations
24 Claims
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1. A myocardial lead attachment system for securing a lead within the myocardium, the system comprising:
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an anchor configured to engage the heart;
a tether coupled to the anchor and a lock structure on the tether; and
a lead body having;
a proximal end and a distal end, a lumen for accepting the tether, and a lock housing in the lumen, wherein the lock structure mates, with the lock housing and restrains motion of the lead body with respect to the tether in either of a proximal or a distal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A myocardial lead attachment system for securing a lead within the myocardium, the system comprising:
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an anchor configured to engage the heart;
a tether coupled to the anchor;
a lead body having;
a proximal end and a distal end, and a lumen for accepting the tether;
a distal lock for engaging the tether to the distal end of the lead body, the distal lock comprising;
a lock structure formed on a distal end of the tether, and a lock housing in the lumen, wherein the lock structure mates with the lock housing and restrains motion of the lead body with respect to the tether in either of a proximal or a distal direction; and
a proximal lock for engaging the tether to the lead body proximal to the distal lock, the proximal lock comprising;
a through-hole extending from the lumen through the lead body at a location the same as or proximal to the lock housing for receiving a portion of the tether proximal to the distal lock, and a second lock structure on the tether coupling the tether to the lead body adjacent the through-hole.
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17. A myocardial lead attachment system for securing a lead within the myocardium, the system comprising:
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an anchor configured to engage the heart;
a tether coupled to the anchor;
a lead body having;
a proximal end and a distal end, and a lumen for accepting the tether;
a distal lock for engaging the tether to the distal end of the lead body, the distal lock comprising;
a lock structure formed on a distal end of the tether, and a lock housing in the lumen, wherein the lock structure mates with the lock housing and restrains motion of the lead body with respect to the tether in either of a proximal or a distal direction; and
a proximal lock formed on the tether and adapted to mate with the proximal end of the lead body, the proximal lock comprising a second lock structure formed on the tether for fixing the tether in frictional engagement to the proximal end of the lead body.
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18. A method of securing a myocardial lead in the myocardium, the method comprising:
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advancing an anchor coupled to a distal end of a tether through the myocardium to an implant location;
threading a myocardial lead onto the tether;
advancing the lead over the tether to the implant location;
locking a distal end of the lead onto the distal end of the tether at a first attachment site;
tensioning the tether; and
securing the tether to the lead at a second attachment site proximal to the first attachment site. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification