System for providing electrical stimulation to a left chamber of a heart
First Claim
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1. A medical electrical lead to provide electrical stimulation to a heart, comprising:
- an elongated lead body having a proximal portion and a distal portion;
a first pacelsense electrode coupled to the distal portion adapted to provide stimulation to a left chamber of the heart;
a coil electrode coupled to the distal portion proximal to the first pace/sense electrode adapted to provide cardioversion/defibrillation stimulation; and
a second pace/sense electrode coupled to the distal portion and being proximal to the coil electrode, wherein the elongate lead body provides at least one lumen extending at least a portion of the length of the elongate lead body, the at least one lumen includes a lumen adjacent to an exterior surface of the lead body, and the lumen adjacent to the exterior surface of the lead body is formed of a collapsible tube.
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Abstract
A medical electrical lead is disclosed that is adapted for placement in the coronary sinus, or a branch vein thereof. The lead includes a first and second pace/sense electrode. A selection mechanism is provided to select either the first or the second electrode for use as a cathode, with the other electrode being selected as the anode. According to another aspect of the invention, a high-voltage coil electrode may be provided between the first and second electrodes. The coil electrode may be electrically coupled to the anode to increase the shadow area of the coil electrode.
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Citations
34 Claims
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1. A medical electrical lead to provide electrical stimulation to a heart, comprising:
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an elongated lead body having a proximal portion and a distal portion;
a first pacelsense electrode coupled to the distal portion adapted to provide stimulation to a left chamber of the heart;
a coil electrode coupled to the distal portion proximal to the first pace/sense electrode adapted to provide cardioversion/defibrillation stimulation; and
a second pace/sense electrode coupled to the distal portion and being proximal to the coil electrode, wherein the elongate lead body provides at least one lumen extending at least a portion of the length of the elongate lead body, the at least one lumen includes a lumen adjacent to an exterior surface of the lead body, and the lumen adjacent to the exterior surface of the lead body is formed of a collapsible tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical electrical lead to provide electrical stimulation to a heart, comprising:
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an elongated lead body having a proximal portion and a distal portion;
a first pace/sense electrode coupled to the distal portion adapted to provide stimulation to a left chamber of the heart;
a coil electrode coupled to the distal portion proximal to the first pace/sense electrode adapted to provide cardioversion/defibrillation stimulation; and
a second pace/sense electrode coupled to the distal portion and being proximal to the coil electrode, wherein the elongate lead body has at least one portion of en exterior surface including a porous Polytetrafluoroethylene (PTFE) material. - View Dependent Claims (12)
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13. A system for providing electrical stimulation to a heart, comprising:
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an elongated lead body having a proximal portion and a distal portion;
a first pace/sense electrode coupled to the distal portion adapted to pace a left chamber of the heart;
a coil electrode coupled to the distal portion proximal to the first pace/sense electrode adapted to provide cardioversion/defibrillation stimulation to the heart;
a second pace/sense electrode coupled to the distal portion and positioned proximal to the coil electrode;
a connector coupled to the proximal portion to allow either the first or the second pace/sense electrode to be selected as a cathode to deliver relatively low-voltage electrical stimulation to the left chamber of the heart, wherein the connector is adapted allow the other of either the first or the second pace/sense electrode to be electrically coupled to the coil electrode; and
an adapter to couple to the connector to select either the first or the second pace/sense electrode as a cathode for delivery of the relatively low-voltage electrical stimulation, wherein the adapter includes a roll-back sleeve. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for providing electrical stimulation to a heart, comprising:
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an elongated lead body having a proximal portion and a distal portion;
a first pace/sense electrode coupled to the distal portion adapted to pace a left chamber of the heart;
a coil electrode coupled to the distal portion proximal to the first pace/sense electrode adapted to provide cardioversion/defibrillation stimulation to the heart; and
a second pace/sense electrode coupled to the distal portion and positioned proximal to the coil electrode;
a connector coupled to the proximal portion to allow either the first or the second pace/sense electrode to be selected as a cathode to deliver relatively low-voltage electrical stimulation to the left chamber of the heart, wherein the connector is adapted to allow the other of either the first or the second pace/sense electrode to be electrically coupled to the coil electrode; and
an adapter to couple to connector to select either the first or the second pace/sense electrode as a cathode for delivery of the relatively low-voltage electrical stimulation, wherein the connector includes at least three connection members adapted to be received by the adapter, and wherein the adapter includes a first port to couple to two of the at least three connection members, and a second port to couple to one of the at least three connection members. - View Dependent Claims (25, 31)
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26. A method of delivering electrical stimulation to a heart, comprising the steps of:
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a.) delivering a lead to a branch vein of the coronary sinus, wherein the lead comprises;
an elongated lead body having a proximal portion and a distal portion;
a first pace/sense electrode coupled to the distal portion; and
a second pace/sense electrode coupled to the distal portion and positioned proximal to the first pace/sense electrode;
b.) selecting one of the first or the second pace/sense electrode as a cathode and the other of the first or the second pace/sense electrode as the anode; and
c.) delivering relatively low-voltage electrical stimulation between the cathode and the anode to a left chamber of the heart, wherein the lead includes a lumen, and wherein step a.) includes guiding the lead with a delivery device positioned within the lumen, and wherein the lumen is a collapsible tube adjacent to an exterior surface of the lead. - View Dependent Claims (27, 28, 29, 30, 32, 33, 34)
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Specification