Implantable lead and electrode portion
First Claim
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1. An implantable lead to provide cardiac stimulation pulses to a patient'"'"'s heart, the implantable lead comprising:
- a lead body having a proximal portion and a distal portion, the proximal portion coupled to an implantable cardiac stimulation device; and
an electrode portion disposed at the distal portion, the electrode portion comprising;
a lead end, the lead end being a distal end of the lead body;
a first conductor having one or more pacing electrodes positioned distally from the lead end;
a second conductor having one or more pacing electrodes positioned distally from the lead end;
wherein the first conductor and the second conductor form a double helix.
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Abstract
An exemplary electrode portion, capable of placement in a vessel of a patient'"'"'s body, includes a double helix. Exemplary implantable stimulation devices, lead assemblies and methods are also disclosed.
47 Citations
23 Claims
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1. An implantable lead to provide cardiac stimulation pulses to a patient'"'"'s heart, the implantable lead comprising:
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a lead body having a proximal portion and a distal portion, the proximal portion coupled to an implantable cardiac stimulation device; and
an electrode portion disposed at the distal portion, the electrode portion comprising;
a lead end, the lead end being a distal end of the lead body;
a first conductor having one or more pacing electrodes positioned distally from the lead end;
a second conductor having one or more pacing electrodes positioned distally from the lead end;
wherein the first conductor and the second conductor form a double helix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method to stimulate a patient'"'"'s heart, comprising:
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providing a lead to be coupled to an implantable cardiac stimulation device, the lead having a lead body with a proximal portion and a distal portion;
positioning the distal portion of the lead body in a vessel of a patient'"'"'s body;
providing an electrode portion having pacing electrodes, the electrode portion moveable from a retracted position to and extended position, the lead body housing the electrode portion when in the retracted position, and the electrode portion extending distally outwardly from the distal portion of the lead body when in the extended position; and
distally extending the electrode portion from a distal end of the distal portion wherein the electrode portion comprises a double helix. - View Dependent Claims (17, 18, 19, 20)
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21. An implantable cardiac lead for implant in the coronary sinus of the heart and for use with an implantable cardiac stimulation device for pacing the left heart, the lead comprising:
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a lead body having a proximal portion and a distal portion; and
a double helix electrode portion disposed at a distal end of the distal portion, the double helix electrode portion comprising;
a first conductor having one or more pacing electrodes and a second conductor having one or more pacing electrodes; and
an electrically insulative joiner to join a distal end of the first conductor to a distal end of the second conductor. - View Dependent Claims (22, 23)
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Specification