Electrode assembly
AssigneeBoston Scientific Scimed, Inc.
InventorsAndrew T. Marecki, Paul Hultz, Michael C. Kozlowski, Brian Stewart
Life of this patent
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Abstract
An expandable electrode assembly for use in a cardiac mapping procedure includes multiple bipolar electrode pairs including a first electrode located on an outer surface and a second electrode located on an inner surface of the individual splines forming the expandable electrode assembly. Such an electrode arrangement may produce improved electrical activation signals which may be used to produce a more accurate map of the electrical activity of a patient's heart.
Claims18
A catheter comprising:
- an elongate catheter body extending from a proximal end to a distal end;
- and
- an expandable electrode assembly disposed at the distal end of the catheter body, the electrode assembly configured to transition from a collapsed configuration to an expanded configuration and comprising at least one flexible member having an outer surface and an inner surface, wherein the at least one flexible member comprises a first electrode disposed on the outer surface of the flexible member and a second electrode disposed on the inner surface of the flexible member, wherein the first electrode and the second electrode are configured to form a bipolar electrode pair and wherein a distance between the first electrode and the second electrode is less than 1.5 mm.
A catheter comprising:
- an elongate catheter body extending from a proximal end to a distal end;
- an expandable electrode assembly disposed at the distal end of the catheter body, the electrode assembly configured to transition from a collapsed configuration to an expanded configuration and comprising two or more flexible splines having an outer surface and an inner surface, wherein at least one of the two or more flexible splines comprises at least a first electrode disposed on the outer surface of the flexible spline and at least a second electrode disposed on the inner surface of the flexible spline, wherein the first electrode and the second electrode are configured to form a bipolar electrode pair and wherein a distance between the first electrode and the second electrode is less than 1.5 mm.
A method of forming a flexible electrode assembly, the method comprising:
- forming a flexible electrode assembly comprising at least one flexible member having an outer surface and an inner surface, wherein the at least one flexible member comprises a first electrode disposed on the outer surface of the flexible member and a second electrode disposed on the inner surface of the flexible member and wherein the flexible electrode assembly is configured to transition from a collapsed configuration to an expanded configuration, wherein the first electrode and the second electrode are configured to form a bipolar electrode pair and wherein a distance between the first electrode and the second electrode is less than 1.5 mm;
- and
- coupling the flexible electrode assembly to a distal end of an elongate catheter body.
Dependencies are inferred from the claim text.