ELECTRODE DESIGNS IN IMPLANTABLE DEFIBRILLATOR SYSTEMS
First Claim
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1. An implantable defibrillator comprising:
- a canister housing a source of electrical energy, a capacitor, and operational circuitry that senses heart rhythms; and
an electrode and lead assembly, the electrode and lead assembly comprising;
a lead body;
at least one sensing electrode; and
a shocking electrode, the shocking electrode comprising a first electrode and a second electrode each having a proximal end and a distal end, wherein the first electrode and the second electrode are each coupled to the lead at their proximal and distal ends.
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Abstract
A subcutaneous implantable cardioverter-defibrillator (S-ICD) comprising shocking electrodes configured to reduce the defibrillation threshold. The S-ICD may include a canister housing a source of electrical energy, a capacitor, and operational circuitry that senses heart rhythms and an electrode and lead assembly. The electrode and lead assembly may comprise a lead, at least one sensing electrode, and at least one shocking electrode. The at least one shocking electrode may extend over a length in the range of 50 to 110 millimeters and a width in the range of 1 to 40 millimeters.
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Citations
20 Claims
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1. An implantable defibrillator comprising:
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a canister housing a source of electrical energy, a capacitor, and operational circuitry that senses heart rhythms; and an electrode and lead assembly, the electrode and lead assembly comprising; a lead body; at least one sensing electrode; and a shocking electrode, the shocking electrode comprising a first electrode and a second electrode each having a proximal end and a distal end, wherein the first electrode and the second electrode are each coupled to the lead at their proximal and distal ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An implantable defibrillator comprising:
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a canister housing a source of electrical energy, a capacitor, and operational circuitry that senses heart rhythms; and an electrode and lead assembly, the electrode and lead assembly comprising; a lead body having a longitudinal axis; at least one sensing electrode; and a shocking electrode comprising a first coil electrode comprising a helically wound element, the first coil electrode in a relaxed state being wound into a first helical configuration about the longitudinal axis of the lead body; wherein the shocking electrode extends over a length in the range of 50 to 110 millimeters and a width in the range of 1 to 40 millimeters. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification