Single lead system for high voltage CHF device
First Claim
1. An implantable cardiac lead for placement in a coronary sinus region of a heart, the lead comprising:
- a lead body defining a distal end and a proximal end;
a plurality of terminals at the proximal end of the lead body;
an electrode assembly comprising a defibrillation electrode and first and second pacing electrodes, the first pacing electrode spaced from the defibrillation electrode and positioned proximate to the distal end of the lead body for placement in electrical contact with an apex of a left ventricle of the heart, the second pacing electrode spaced proximally from the defibrillation electrode for placement in electrical contact with a basal region of the left ventricle of the heart; and
a plurality of conductors connecting each electrode to a respective one of the terminals at the proximal end of the lead body;
wherein the first and second pacing electrodes respectively stimulate the apex and basal region simultaneously.
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Accused Products
Abstract
An implantable cardiac lead for use in the coronary sinus region of a heart for the treatment of congestive heart failure includes an elongated lead body having a plurality of terminals at its proximal end, an electrode assembly including a defibrillation electrode, for example, a metallic coil, and first and second pacing electrodes, the first pacing electrode being an electrode at or adjacent to the tip of the lead spaced from the defibrillation electrode and adjacent the apex of the left ventricle of the heart, the second pacing electrode including a ring electrode spaced proximally from the defibrillation electrode and adjacent the basal region of the left ventricle of the heart, and a plurality of conductors connecting each electrode to a respective one of the terminals at the proximal end of the lead body.
34 Citations
15 Claims
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1. An implantable cardiac lead for placement in a coronary sinus region of a heart, the lead comprising:
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a lead body defining a distal end and a proximal end; a plurality of terminals at the proximal end of the lead body; an electrode assembly comprising a defibrillation electrode and first and second pacing electrodes, the first pacing electrode spaced from the defibrillation electrode and positioned proximate to the distal end of the lead body for placement in electrical contact with an apex of a left ventricle of the heart, the second pacing electrode spaced proximally from the defibrillation electrode for placement in electrical contact with a basal region of the left ventricle of the heart; and a plurality of conductors connecting each electrode to a respective one of the terminals at the proximal end of the lead body; wherein the first and second pacing electrodes respectively stimulate the apex and basal region simultaneously. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of treating congestive heart failure, the method comprising:
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(a) implanting a cardiac lead in a coronary sinus region of a heart, the lead comprising a defibrillation electrode and first and second pacing electrodes, the first pacing electrode spaced from the defibrillation electrode and positioned proximate to the distal end of the lead body and placed in electrical contact with an apex of a left ventricle of the heart, the second pacing electrode spaced proximally from the defibrillation electrode and placed in electrical contact with a basal region of the left ventricle of the heart; and (b) simultaneously stimulating the apex and the basal region of the left ventricle from the first and second pacing electrodes. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of treating congestive heart failure, the method comprising:
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implanting a cardiac lead in a coronary sinus region of a heart, the lead comprising a defibrillation electrode and first and second pacing electrodes, the first pacing electrode spaced distally from the defibrillation electrode and positioned proximate to the distal end of the lead body and placed in electrical contact with an apex of a left ventricle of the heart, the second pacing electrode spaced proximally from the defibrillation electrode and placed in electrical contact with a basal region of the left ventricle; implanting an implantable cardiac stimulation device in a right-side location of a patient'"'"'s body, wherein the implantable cardiac stimulation device comprises a return electrode; stimulating the heart from selected ones of the plurality of pacing electrodes; and in response to ventricular fibrillation, delivering a defibrillation shock pulse between the defibrillation electrode and the return electrode. - View Dependent Claims (14, 15)
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Specification