Electroporation catheter having tissue-contactless electrodes
AssigneeBoston Scientific Scimed, Inc.
InventorsAllan C. Shuros, Brendan E. Koop
Life of this patent
Estimating the term…
Abstract
At least some embodiments of the present disclosure are directed to an electroporation ablation catheter having tissue-contactless electrodes. In some embodiments, the electroporation ablation catheter comprises a catheter shaft defining a longitudinal axis and having a proximal end and a distal end; and an electrode assembly extending from the distal end of the catheter shaft, the electrode assembly configured to assume a first collapsed state and a second expanded state. In some cases, the electrode assembly includes an expandable component, and a plurality of electrodes disposed on the expandable component, where in the second state the expandable component have portions configured to protrude from adjacent electrodes.
Claims19
An electroporation ablation catheter, comprising:
- a catheter shaft defining a longitudinal axis and having a proximal end and a distal end;
- and
- an electrode assembly extending from the distal end of the catheter shaft, the electrode assembly configured to assume a first collapsed state and a second expanded state, the electrode assembly including:
- an expandable component, and
- a plurality of electrodes disposed on the expandable component;
- wherein in the second state the expandable component has a cross-sectional shape defined by a plurality of peaks and a plurality of troughs,
- wherein at least one of the plurality of electrodes is disposed proximate to one of the plurality of troughs.
The electroporation ablation catheter of claim 2, wherein the balloon is inflated with a fluid. The electroporation ablation catheter of claim 6, wherein the fluid is a gas.
A method for electroporation ablations, the method comprising:
- deploying an electroporation ablation catheter in a first state, the electroporation ablation catheter comprising an expandable component and a plurality of electrodes disposed on the expandable component, wherein the expandable component is collapsed in the first state;
- disposing the electroporation ablation catheter approximate to a target tissue;
- operating the electroporation ablation catheter in a second state, wherein the expandable component is expanded in the second state, and wherein the expandable component comprises portions configured to be protruded from adjacent electrodes of the plurality of electrodes;
- and
- generating an electric field at the plurality of electrodes of the catheter, the electric field having an electric field strength sufficient for ablating target tissue via irreversible electroporation.
An electroporation ablation system, comprising:
- an electroporation ablation catheter comprising:
- a catheter shaft defining a longitudinal axis and having a proximal end and a distal end;
- and
- an electrode assembly extending from the distal end of the catheter shaft, the electrode assembly configured to assume a first collapsed state and a second expanded state, the electrode assembly including:
- an expandable component, and a plurality of electrodes disposed on the expandable component;
- and
- a controller coupled to the electroporation ablation device and configured to control the electroporation ablation device,
- wherein in the second state the expandable component has a cross-sectional shape defined by a plurality of peaks and a plurality of troughs,
- wherein at least one of the plurality of electrodes is disposed proximate to one of the plurality of troughs.
Dependencies are inferred from the claim text.