Combination pacing and defibrillating lead having sensing capability
First Claim
1. An apparatus for pacing, cardioverting or defibrillating a heart comprising:
- an implantable pulse generator; and
a lead connected at a proximal end to said pulse generator, said lead having an active fixation pacing electrode at its distal tip, a defibrillating electrode positioned proximally of said distal tip and a sensor electrode positioned between said pacing electrode and said defibrillation electrode, wherein said sensor electrode is spaced from the defibrillation electrode a distance of between 1 and 5 centimeters and wherein said lead includes means for electrically interfacing said sensor, pacing, and defibrillation electrodes with said implantable pulse generator.
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Accused Products
Abstract
A lead, for use in combination with an implanted pulse generator which may be a pacemaker or defibrillator or combination thereof. The lead can deliver an electrical charge to pace, cardiovert or defibrillate the heart, and can sense cardiac activity in the heart. The lead may include additional sensor electrodes capable of sensing electrical or physical activity in the atrial cavity. The lead allows cardioversion and/or defibrillation stimuli to be provided by a large surface area electrode which is passively implanted in the ventricle, to allow the pulse generator to provide appropriately synchronized atrial-ventricular pacing, cardioversion or defibrillation.
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Citations
24 Claims
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1. An apparatus for pacing, cardioverting or defibrillating a heart comprising:
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an implantable pulse generator; and a lead connected at a proximal end to said pulse generator, said lead having an active fixation pacing electrode at its distal tip, a defibrillating electrode positioned proximally of said distal tip and a sensor electrode positioned between said pacing electrode and said defibrillation electrode, wherein said sensor electrode is spaced from the defibrillation electrode a distance of between 1 and 5 centimeters and wherein said lead includes means for electrically interfacing said sensor, pacing, and defibrillation electrodes with said implantable pulse generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lead adapted for connection to an implantable pulse generator, said lead comprising:
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a lead body having a proximal end and a distal end; a connector located at said proximal end of said lead body, said connector adapted to interconnect to said pulse generator; a defibrillation electrode positioned near said distal end of said lead body; an active fixation pacing electrode at the distal tip of said lead; a sensor electrode positioned between said pacing electrode and said defibrillation electrode, said sensor electrode spaced from the defibrillation electrode a distance of between 1 and 5 centimeters; and means for electrically interfacing said sensor, pacing, and defibrillation electrodes with said implantable pulse generator. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification