Subcutaneous electrode with improved contact shape for transthoracic conduction
AssigneeCameron Health, Inc.
InventorsGust H. Bardy, Riccardo Cappato, William J. Rissmann, Gary H. Sanders
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Abstract
One embodiment of the present invention provides a lead electrode assembly for use with an implantable cardioverter-defibrillator subcutaneously implanted outside the ribcage between the third and twelfth ribs comprising the electrode.
Claims20
A lead electrode assembly for use in an implantable defibrillator system, the lead electrode assembly comprising:
- an elongated lead having a first end for coupling with an implantable defibrillator and a second end for carrying an electrode, with one or more electrical conductors extending therein;
- and
- an electrode assembly comprising an electrode having first and second faces, a backing layer adjacent to the second face of the electrode and a cover extending over the backing layer and covering a portion of the first face of the electrode;
- wherein the electrode assembly is at the second end of the elongated lead;
- wherein the backing layer is precurved to create a radius of curvature of the electrode matching a desired portion of patient anatomy;
- and
- wherein the desired portion of patient anatomy is a selected region of the exterior of a patient's ribs.
A lead electrode assembly for use in an implantable defibrillator system, the lead electrode assembly comprising:
- an elongated lead having a first end for coupling with an implantable defibrillator and a second end for carrying an electrode, with one or more electrical conductors extending therein;
- an electrode assembly comprising an electrode having first and second faces, a backing layer adjacent to the second face of the electrode and a cover extending over the backing layer and covering a portion of the first face of the electrode;
- and
- engagement means extending from the cover opposite the first face of the electrode, the engagement means configured to allow engagement with an insertion tool to facilitate placement of the lead electrode assembly subcutaneously over the ribcage of a patient;
- wherein the electrode assembly is at the second end of the elongated lead;
- and
- wherein the backing layer is precurved to create a radius of curvature of the electrode matching a desired portion of patient anatomy.
An implantable defibrillator comprising a canister housing operational circuitry for the implantable defibrillator and a lead electrode assembly coupled to the canister, wherein the lead electrode assembly comprises:
- an elongated lead having a first end at the canister and a second end for carrying an electrode, with one or more electrical conductors extending therein;
- and
- an electrode assembly comprising an electrode having first and second faces, a backing layer adjacent to the second face of the electrode and a cover extending over the backing layer and covering a portion of the first face of the electrode;
- wherein the electrode assembly is at the second end of the elongated lead;
- wherein the backing layer is precurved to create a radius of curvature of the electrode matching a desired portion of patient anatomy;
- and
- wherein the desired portion of patient anatomy is a selected region of the exterior of a patient's ribs.
An implantable defibrillator comprising a canister housing operational circuitry for the implantable defibrillator and a lead electrode assembly coupled to the canister, wherein the lead electrode assembly comprises:
- an elongated lead having a first end at the canister and a second end for carrying an electrode, with one or more electrical conductors extending therein;
- an electrode assembly comprising an electrode having first and second faces, a backing layer adjacent to the second face of the electrode and a cover extending over the backing layer and covering a portion of the first face of the electrode;
- and
- engagement means extending from the cover opposite the first face of the electrode, the engagement means configured to allow engagement with an insertion tool to facilitate placement of the lead electrode assembly subcutaneously over the ribcage of a patient;
- wherein the electrode assembly is at the second end of the elongated lead;
- and
- wherein the backing layer is precurved to create a radius of curvature of the electrode matching a desired portion of patient anatomy.
Dependencies are inferred from the claim text.