Systems, devices, and methods for ablation of endocardial tissue
AssigneeBoston Scientific Scimed, Inc.
InventorsRaju Viswanathan, Allan Zingeler, Gary Long, Jean-Luc Pageard, Brittney Hachey
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Abstract
An ablation catheter comprises a proximal portion, a distal portion extending from the proximal portion, the distal portion comprising a set of insulated lead segments each having a distal end; and a set of uninsulated electrode segments, wherein each electrode segment is connected to and extends from the distal ends of a pair of adjacent insulated lead segments, and wherein the distal portion is configured to form a compact first configuration for advancement within a sheath lumen into an endocardial space, and to transform to an expanded second configuration when advanced out of the sheath lumen.
Claims20
An ablation catheter comprising:
- a proximal portion;
- and
- a distal portion extending from the proximal portion, the distal portion comprising:
- a set of three or more insulated lead segments each having a distal end;
- and
- a set of uninsulated electrode segments, wherein each electrode segment is fixedly connected to and extends from the distal ends of a pair of adjacent insulated lead segments, such that two of the electrode segments extend from the distal end of each insulated lead segment, and
- wherein the distal portion is configured to form a compact first configuration for advancement within a sheath lumen into an endocardial space, and to transform to an expanded second configuration when advanced out of the sheath lumen.
An ablation catheter comprising:
- a proximal portion;
- and
- a distal portion extending from the proximal portion, the distal portion comprising:
- a set of three or more insulated lead segments each having a distal end;
- and
- a set of uninsulated electrode segments, each electrode segment fixedly connected to and extending from the distal ends of a pair of adjacent insulated lead segments, such that two of the electrode segments extend from the distal end of each insulated lead segment,
- wherein the distal portion is configured to form a compact first configuration for advancement within a sheath lumen into an endocardial space, and to transform to a flower-shaped expanded second configuration when advanced out of the sheath lumen.
A system for ablation of tissue by irreversible electroporation, the system comprising:
- a signal generator configured to generate a pulse waveform;
- and
- an ablation catheter having a distal portion comprising:
- a set of three or more insulated lead segments each having a distal end;
- and
- a set of uninsulated electrode segments, each electrode segment being operatively connected to the signal generator and configured to receive the pulse waveform, wherein each electrode segment is fixedly connected to and extends from the distal ends of a pair of adjacent insulated lead segments, such that two of the electrode segments extend from the distal end of each insulated lead segment, and
- wherein the distal portion is configured to form a compact first configuration for advancement within a sheath lumen into an endocardial space, and to transform to an expanded second configuration when advanced out of the sheath lumen.
Dependencies are inferred from the claim text.