Process and device for the treatment of atrial arrhythmia
AssigneeDaig Corporation
InventorsJames A. Hassett, John F. Swartz, Michael C. Bednarek
Life of this patent
Estimating the term…
Abstract
A process for the treatment of atrial arrhythmia by use of ablation procedures comprising circumferential ablation of vessels, particularly pulmonary veins, associated with the left atrium of the heart. Also medical devices for such process including a pair of balloons secured to a catheter with one balloon located within the other balloon and an ablation catheter located within one of the balloons, which devices are used for the formation of a circumferential ablation lesion in the pulmonary vein.
Claims22
A medical device for ablation of tissue associated with a vessel connected to a human heart comprising
- an ablation catheter,
- a first, outer balloon, secured to the catheter and capable of forming a seal to at least partially restrict the flow of blood within the vessel at a location associated with the vessel,
- a second, inner balloon, secured to the catheter at a location within the first outer balloon,
- an introduction system operating in conjunction with the catheter to introduce a conductive media inside the medical device,
- an ablating element secured to the catheter, and
- a plurality of balloon openings provided in the first, outer balloon.
A medical device for ablation of tissue associate with a vessel connected to a human heart comprising
- an introducer with a proximal and a distal end and a lumen passing through the introducer from its proximal to its distal end,
- an ablation catheter, capable of being inserted within the lumen of the introducer to at least partially restrict the flow of blood within the vessel,
- a first, outer balloon, secured to the catheter,
- a second, inner balloon, secured to the catheter at a location within the first outer balloon,
- an introduction system operating in conjunction with the catheter within the first outer balloon,
- an ablating element secured to the catheter, and
- a plurality of balloon openings provided in the first outer balloon.
A process for ablation of tissue associated with a vessel of a human heart comprising
- introducing an ablation catheter to a position adjacent to tissue associated with the vessel, wherein the ablation catheter comprises an extended catheter, a first, outer balloon, and a second, inner balloon also secured to the catheter,
- at least partially sealing the vessel to restrict at least partially the flow of blood through the vessel,
- passing a conductive media through balloon openings in the first outer balloon,
- conducting energy from an electrode secured to the catheter by use of the conductive media through the balloon openings in the outer balloon to the tissue, and
- ablating the tissue to form an ablation lesion.
Dependencies are inferred from the claim text.