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US 9,808,304 B2Granted
Cryogenic balloon device with electroporation treatment region
AssigneeMedtronic CryoCath LP
InventorJean-Pierre Lalonde
Life of this patent
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Abstract
An intravascular ablation device, including a flexible elongate body; an expandable element positioned on the elongate body; a radiofrequency or electroporation treatment segment located distally of the expandable element; a cryogenic coolant source in fluid communication with an interior of the expandable element; and a radiofrequency or electroporation energy source in communication with the radiofrequency or electroporation treatment segment.
Claims20
A medical system, comprising:
- an elongate catheter body including a proximal portion coupled to a handle and a distal portion;
- an expandable cryogenic treatment region coupled to the distal portion of the catheter body;
- an electroporation treatment region defining an outer surface of and a distal tip of the medical device, an entirety of the electroporation treatment region coupled to the distal portion of the catheter body at a location that is distal to the expandable cryogenic treatment region, the electroporation treatment region having a flexibility;
- and
- a deflectable segment located between the expandable cryogenic treatment region and the electroporation treatment region, the deflectable segment having a flexibility that is greater than the flexibility of the electroporation treatment region.
2 more elements
An intravascular ablation system, comprising:
- a flexible elongate body including a proximal portion coupled to a handle and a distal portion;
- an expandable cryogenic treatment element coupled to the distal portion of the elongate body, the expandable cryogenic treatment element including a first expandable element and a second expandable element located within the first expandable element, the second expandable element defining a chamber;
- an interstitial region between the first expandable element and the second expandable element;
- a cryogenic coolant source;
- a fluid delivery lumen in fluid communication with the chamber;
- a fluid exhaust lumen in fluid communication with the chamber;
- an interstitial lumen in fluid communication with the interstitial region, the interstitial lumen being fluidly isolated from the fluid delivery lumen and the fluid exhaust lumen;
- a substantially linear, elongated electroporation segment coupled to the distal portion of the elongate body and extending distally beyond the expandable cryogenic treatment element when the expandable cryogenic treatment element is fully expanded;
- and
- a power source in communication with the electroporation segment, the power source being configured to transmit electrical pulses to the electroporation segment.
7 more elements
Dependencies are inferred from the claim text.