Devices and methods for inducing ablation in or around occluded implants
AssigneeBoston Scientific Scimed, Inc.
InventorsJohn T. Favreau, Travis Henchie, Karim Tarabein
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Abstract
A bipolar ablation device for treatment of a stenosis within an implanted metallic stent may include an elongate shaft slidably disposable within an endoscope, the elongate shaft including at least one electrode configured to form a first pole of the bipolar ablation device, and an electrode lead slidably disposable within the endoscope. The electrode lead may be configured to electrically engage the implanted metallic stent to form a second pole of the bipolar ablation device. The elongate shaft may be positionable within a lumen of the implanted metallic stent.
Claims20
A method of treating a stenosis within a lumen of a previously implanted metallic stent, comprising:
- advancing an endoscope to a position adjacent the previously implanted metallic stent;
- advancing an elongate shaft comprising at least one electrode disposed thereon proximate a distal end of the elongate shaft from the endoscope and into the lumen of the previously implanted metallic stent such that the at least one electrode is spaced apart from the previously implanted metallic stent to form a first pole of a bipolar ablation device;
- advancing a probe that is spaced apart from the elongate shaft from the endoscope and into electrical contact with the previously implanted metallic stent such that the previously implanted metallic stent forms a second pole of the bipolar ablation device;
- and
- energizing the bipolar ablation device to ablate the stenosis within the lumen of the previously implanted metallic stent.
A method of treating a stenosis within a lumen of a previously implanted metallic stent, comprising:
- advancing an endoscope to a position adjacent the previously implanted metallic stent;
- advancing an elongate shaft comprising at least one electrode disposed thereon proximate a distal end of the elongate shaft from the endoscope and into the lumen of the previously implanted metallic stent such that the at least one electrode is spaced apart from the previously implanted metallic stent to form a first pole of a bipolar ablation device;
- advancing a probe that is spaced apart from the elongate shaft from the endoscope and into contact with the previously implanted metallic stent such that the previously implanted metallic stent forms a second pole of the bipolar ablation device;
- and
- energizing the bipolar ablation device to ablate the stenosis within the lumen of the previously implanted metallic stent without damaging tissue outside of the previously implanted metallic stent.
Dependencies are inferred from the claim text.