CS lead with single site sensing and dual site pacing
First Claim
Patent Images
1. A medical lead comprising:
- (a) a coaxial connector having first and second electrical contacts;
(b) a first electrode electrically coupled to said first electrical contact of said coaxial connector;
(c) a second electrode electrically coupled to said first electrical contact of said connector; and
(d) a third electrode electrically coupled to said second electrical contact of said connector;
wherein each of said first, second, and third electrodes has a microscopic surface area and wherein said first electrode microscopic surface area is smaller than said second electrode microscopic surface area.
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Abstract
A system for providing medical electrical stimulation includes a pulse generator coupled to a lead having two electrodes for placement in the right atrium or for placement of one in the right atrium and one in the coronary sinus or coronary vein. In the preferred embodiment the surface area of the first electrode is smaller than that of the second electrode so that the sensed signal from the first electrode is less than that from the second. The system provides dual site pacing with essentially single site sensing without the use of extra switches, connectors, or adaptors.
73 Citations
20 Claims
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1. A medical lead comprising:
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(a) a coaxial connector having first and second electrical contacts;
(b) a first electrode electrically coupled to said first electrical contact of said coaxial connector;
(c) a second electrode electrically coupled to said first electrical contact of said connector; and
(d) a third electrode electrically coupled to said second electrical contact of said connector;
wherein each of said first, second, and third electrodes has a microscopic surface area and wherein said first electrode microscopic surface area is smaller than said second electrode microscopic surface area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A medical device system comprising:
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(a) a pulse generator having a connector port, said connector port having a cathode contact and an anode contact, wherein said pulse generator applies pacing pulse voltages across said cathode contact and said anode contact, and wherein said pulse generator senses incoming signals across said cathode contact and said anode contact; and
(b) a lead having a lead connector, said lead connector having a lead connector cathode contact for contacting said connector port cathode contact and a lead connector anode contact for contacting said connector port anode contact, said lead further comprising (i) a first electrode electrically coupled to said lead connector cathode contact;
(ii) a second electrode electrically coupled to said lead connector cathode contact; and
(iii) a third electrode electrically coupled to said lead connector anode contact;
wherein each of said first, second, and third electrodes has a microscopic surface area and wherein said first electrode microscopic surface area is smaller than said second electrode microscopic surface area. - View Dependent Claims (17)
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18. A medical lead comprising:
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(a) a connector having first and second electrical contacts;
(b) a first electrode electrically coupled to said first electrical contact of said connector;
(c) a second electrode electrically coupled to said first electrical contact of said connector; and
(d) a third electrode electrically coupled to said second electrical contact of said connector, wherein each of said first, second, and third electrode has an impedance and wherein said first electrode is located distal of said second and third electrodes and wherein said first electrode impedance is higher than said second electrode impedance;
wherein each of said first, second, and third electrodes has a microscopic surface area and wherein said first electrode microscopic surface area is smaller than said second electrode microscopic surface area.
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19. A medical lead comprising:
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(e) a connector having first and second electrical contacts;
(f) a first electrode electrically coupled to said first electrical contact of said connector;
(g) a second electrode electrically coupled to said first electrical contact of said connector; and
(h) a third electrode electrically coupled to said second electrical contact of said connector, wherein each of said first, second, and third electrode has a microscopic surface area and wherein said first electrode microscopic surface area is smaller than said second electrode microscopic surface area.
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20. A medical lead comprising:
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(a) a coaxial connector having first and second electrical contacts;
(b) a first electrode electrically coupled to said first electrical contact of said coaxial connector;
(c) a second electrode electrically coupled to said first electrical contact of said connector;
(d) a third electrode adapted to deliver defibrillation energy and electrically coupled to said second electrical contact of said connector;
(e) a high voltage connector electrically coupled to said third electrode; and
(f) a resistor connected in series between said third electrode and said second contact of said connector.
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Specification