Coronary Sinus Cardiac Lead For Stimulating and Sensing The Atria of the Right and Left Heart and System
First Claim
1. An implantable cardiac lead for implant in the coronary sinus of a heart and for use with an implantable cardiac stimulation device for sensing electrical activity of the right and left atria of the heart and delivering stimulation pulses to the right and left atria of the heart, the lead comprising:
- a proximal connector;
a lead body including a plurality of conductors and insulating the plurality of conductors;
a distal left atrial pacing electrode for placement in electrical contact with the left atrium;
a left atrial defibrillation electrode proximal to the distal left atrial pacing electrode for placement in electrical contact with the left atrium;
a first right atrial pacing electrode for placement in electrical contact with the right atrium; and
a right atrial defibrillation electrode for placement in one of the right atrium and superior vena cava;
the electrodes being spaced apart on the lead body so that when the left atrial pacing electrode is in electrical contact with and adjacent the left atrium within the coronary sinus, the first right atrial pacing electrode is in electrical contact with the right atrium and adjacent to the ostium of the coronary sinus within the coronary sinus.
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Accused Products
Abstract
An implantable cardiac stimulation system including a single atrial dedicated lead provides sensing electrical activity of and delivering stimulation pulses to the right and left atria of the heart. The single lead is implantable in the coronary sinus of the heart and includes a distal left atrial pacing electrode, and a right atrial pacing electrode. The electrodes are spaced apart on the lead so that when the left atrial pacing electrode is in electrical contact with and adjacent the left atrium within the coronary sinus, the right atrial pacing electrode is in electrical contact with the right atrium and adjacent to the ostium of the coronary sinus within the coronary sinus. The system further includes an implantable cardiac stimulation device including a pulse generator and a sensing circuit that is coupled to the left and right pacing electrodes. They may further include one or more defibrillation coil electrodes.
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Citations
18 Claims
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1. An implantable cardiac lead for implant in the coronary sinus of a heart and for use with an implantable cardiac stimulation device for sensing electrical activity of the right and left atria of the heart and delivering stimulation pulses to the right and left atria of the heart, the lead comprising:
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a proximal connector;
a lead body including a plurality of conductors and insulating the plurality of conductors;
a distal left atrial pacing electrode for placement in electrical contact with the left atrium;
a left atrial defibrillation electrode proximal to the distal left atrial pacing electrode for placement in electrical contact with the left atrium;
a first right atrial pacing electrode for placement in electrical contact with the right atrium; and
a right atrial defibrillation electrode for placement in one of the right atrium and superior vena cava;
the electrodes being spaced apart on the lead body so that when the left atrial pacing electrode is in electrical contact with and adjacent the left atrium within the coronary sinus, the first right atrial pacing electrode is in electrical contact with the right atrium and adjacent to the ostium of the coronary sinus within the coronary sinus. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable cardiac stimulation system for sensing electrical activity of the right and left atria of a heart and delivering stimulation pulses to the right and left atria of the heart, the system comprising:
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a single lead implantable in the coronary sinus of the heart and including a distal left atrial pacing electrode for placement in electrical contact with the left atrium, a left atrial defibrillation electrode proximal to the distal left atrial pacing electrode for placement in electrical contact with the left atrium, a first right atrial pacing electrode for placement in electrical contact with the right atrium, and a right atrial defibrillation electrode for placement in one of the right atrium and superior vena cava, the electrodes being spaced apart on the lead body so that when the left atrial pacing electrode is in electrical contact with and adjacent the left atrium within the coronary sinus, the first right atrial pacing electrode is in electrical contact with the right atrium and adjacent to the ostium of the coronary sinus within the coronary sinus; and
an implantable cardiac stimulation device including a pulse generator that delivers pacing stimulation pulses to the distal left atrial pacing electrode and/or the first right atrial pacing electrode and a sensing circuit that senses electrical activity of the atrium with the distal left atrial pacing electrode and/or the first right atrial pacing electrode. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification