Single pass defibrillation/pacing lead with passively attached electrode for pacing and sensing
First Claim
1. A lead adapted for implantation in, on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said lead comprising:
- a lead body having a proximal end and a distal end, and a curved portion at a selected distance from the distal end of the lead body;
a first electrode attached to the lead body at the distal end of the lead body for contact with a first chamber of the heart; and
a second electrode attached to the lead body, the second electrode comprising an electrically conductive ring positioned a distance from the first electrode on the curved portion of the lead body to facilitate attachment of the second electrode to a second chamber of the heart, the second electrode including a passive fixation element.
1 Assignment
0 Petitions
Accused Products
Abstract
A single-pass endocardial lead electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity includes a lead body with a circumferential outer surface. The lead includes a first distal end electrode which has a first electrical conducting surface. The lead body also has a second electrode which has a second electrical conducting surface. The second electrode is adapted for positioning and fixation to the wall of the atrium of the heart. A passive fixation element may be used as part of the second electrode. The lead body also includes a curved portion which facilitates the positioning and passive fixation of the second electrode.
-
Citations
35 Claims
-
1. A lead adapted for implantation in, on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said lead comprising:
-
a lead body having a proximal end and a distal end, and a curved portion at a selected distance from the distal end of the lead body;
a first electrode attached to the lead body at the distal end of the lead body for contact with a first chamber of the heart; and
a second electrode attached to the lead body, the second electrode comprising an electrically conductive ring positioned a distance from the first electrode on the curved portion of the lead body to facilitate attachment of the second electrode to a second chamber of the heart, the second electrode including a passive fixation element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
a third electrode positioned near the second electrode, said lead adapted for pacing and defibrillation of the heart.
-
-
6. The lead as recited in claim 1, further comprising:
-
a third electrode positioned near the first electrode; and
a fourth electrode positioned near the second electrode, said lead adapted for pacing and defibrillation of the heart.
-
-
7. The lead as recited in claim 6, wherein the third electrode positioned near the first electrode is a shocking coil.
-
8. The lead as recited in claim 6, wherein the fourth electrode positioned near the second electrode is a shocking coil for positioning near the superior vena cava.
-
9. The lead as recited in claim 8, further comprising a fifth electrode positioned near the second electrode, said fifth electrode used for atrial sensing within the atrium of the heart.
-
10. The lead as recited in claim 1, wherein the outside of the lead body includes a textured portion for passive fixation of the lead to the heart.
-
11. The lead as recited in claim 10, wherein the textured portion of the lead body is near the second electrode.
-
12. The lead as recited in claim 1, the lead body defined in part by a first longitudinal axis;
and the second electrode protruding outwardly from the lead body, said second electrode defined in part by a second longitudinal axis, where the first longitudinal axis is disposed transverse to the first longitudinal axis.
-
13. The lead as recited in claim 12, wherein the curved portion is disposed away from the lead body in a first direction, and the second electrode protrudes outwardly toward the first direction.
-
14. The lead as recited in claim 12, wherein the ring electrode includes at least one small porous tip electrode disposed on a side surface of the ring electrode.
-
15. The lead as recited in claim 12, wherein the ring electrode comprises a smooth ring.
-
16. The lead as recited in claim 12, wherein the ring electrode includes two or more layers of conductive mesh attached thereto.
-
17. The lead as recited in claim 12, wherein the ring electrode includes one or more layers of conductive mesh attached on a side surface of the ring electrode, where the layers are deposited on a thin band.
-
18. The lead as recited in claim 12, wherein the first electrode has opposite polarity than the second electrode.
-
19. The lead as recited in claim 1, wherein the second electrode is a porous ring having a diameter substantially the same as the lead body.
-
20. The lead as recited in claim 19, wherein the second electrode comprises a porous ring.
-
21. The lead as recited in claim 1, wherein the second electrode further comprises a plurality of raised ridges on said ring.
-
22. The lead as recited in claim 1, wherein the ring is partially masked.
-
23. A lead adapted for endocardial implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity, said lead comprising:
-
a lead body having a proximal end and a distal end;
a first electrode attached to the distal end of the lead body; and
a second electrode attached to the lead body a selected distance away from the first electrode, said lead body formed with a curve therein to facilitate positioning of the second electrode within the heart, the second electrode further comprising a passive fixation element wherein the second electrode includes an electrically conductive ring element. - View Dependent Claims (24, 25, 26)
-
-
27. A system for delivering signals to the heart, said system comprising:
-
an electronics system further comprising;
a cardiac activity sensor; and
a signal generator which produces signals to stimulate the heart; and
a lead adapted for endocardial implantation on or about the heart, and for connection to the electronics system, said lead comprising;
a lead body having a proximal end and a distal end, and a curved portion at a selected distance from the distal end of the lead body;
a first electrode attached to the lead body; and
a second electrode attached to the lead body, said first electrode at the distal end of the lead body for contact with a first chamber of the heart and said second electrode positioned a distance from the first electrode on a curved portion of the lead body to facilitate attachment of the second electrode to the second chamber of the heart, said second electrode further comprising a passive fixation element wherein the second electrode includes an electrically conductive ring element.
-
-
28. A lead comprising:
-
a lead body extending from a proximal end to a distal end, the lead body having a curved portion at a selected distance from the distal end of the lead body, the lead body defined in part by a first longitudinal axis;
a first electrode disposed at the distal end of the lead body;
a second electrode attached to the lead body, said second electrode positioned a predetermined distance from the first electrode to facilitate attachment of the second electrode to a second chamber of the heart, where the second electrode protrudes outwardly from the lead body, said second electrode comprising a ring electrode defined in part by a second longitudinal axis, where the first longitudinal axis is disposed transverse to the first longitudinal axis; and
wherein the ring electrode includes at least one small porous tip electrode. - View Dependent Claims (29, 30, 31)
-
-
32. A lead comprising:
-
a lead body extending from a proximal end to a distal end, the lead body having a curved portion at a selected distance from the distal end of the lead body, the lead body defined in part by a first longitudinal axis;
a first electrode disposed at the distal end of the lead body;
a second electrode attached to the lead body, said second electrode positioned a predetermined distance from the first electrode to facilitate attachment of the second electrode to a second chamber of the heart, where the second electrode protrudes outwardly from the lead body, said second electrode comprising a ring electrode defined in part by a second longitudinal axis, where the first longitudinal axis is disposed transverse to the first longitudinal axis; and
wherein the ring electrode includes one or more layers of conductive mesh attached thereto.
-
-
33. A lead comprising:
-
a lead body extending from a proximal end to a distal end, the lead body having a curved portion at a selected distance from the distal end of the lead body, the lead body defined in part by a first longitudinal axis;
a first electrode disposed at the distal end of the lead body;
a second electrode attached to the lead body, said second electrode positioned a predetermined distance from the first electrode to facilitate attachment of the second electrode to a second chamber of the heart, where the second electrode protrudes outwardly from the lead body, said second electrode comprising a ring electrode defined in part by a second longitudinal axis, where the first longitudinal axis is disposed transverse to the first longitudinal axis; and
wherein the ring electrode includes one or more layers of conductive mesh attached thereto, where the layers are deposited on a thin band. - View Dependent Claims (34, 35)
-
Specification