US6251109B1
Expired / Lapsed
US
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Process and device for the treatment of atrial arrhythmia
Assignee: St Jude Medical Atrial Fibrillation Division Inc
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Filing: 1999-01-20
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Granted: 2001-06-26
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Expires: 2019-01-20
Abstract
Abstract A process for the treatment of atrial arrhythmia by use of ablation procedures including 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.
Inventors
- 👤 James A. Hassett
- 👤 John F. Swartz
- 👤 Michael C. Bednarek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61M; A61M25/00; A61M25/10; A61M25/1011; A61B17/00; A61B17/22; A61B2017/22051; A61B2017/22065; A61B2017/22067; A61B2018/00053; A61B2018/00059; A61B2018/00065; A61B2018/00214; A61B2018/0022; A61B2018/00238; A61B2018/0025; A61B2018/00255; A61B2018/00261; A61B2018/00315; A61B2018/00333; A61B2018/00345; A61B2018/00351; A61B2018/00375; A61B2018/00571; A61B2018/00577; A61B2018/1405; A61B2018/1435; A61B2018/1437; A61B2018/1472; A61M2025/1043; A61M2025/1052; A61M2025/1072; A61M2025/1086
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
100 words
A medical device for ablation within a vessel associated with a human heart comprising an ablation catheter, a first, outer balloon, secured to the catheter to seal the vessel and substantially prevent the flow of blood through the vessel, a second, inner balloon, secured to the catheter at a location within the first outer balloon, an introduction system secured to the catheter to introduce a conductive media inside the first outer balloon, an ablating element secured to the catheter within the first outer balloon, and a plurality of balloon openings provided in an outside surface of the first, outer balloon.
Claim 2
Dependent Claim
100 words
A medical device for ablation within a vessel associated with a human heart comprising an ablation catheter, a first, outer balloon, secured to the catheter to seal the vessel and substantially prevent the flow of blood through the vessel, a second, inner balloon, secured to the catheter at a location within the first outer balloon, an introduction system secured to the catheter to introduce a conductive media inside the first outer balloon, an ablating element secured to the catheter within the first outer balloon, and a plurality of balloon openings provided in an outside surface of the first, outer balloon.
Claim 3
Dependent Claim
14 words
The medical device of claim 1 wherein the ablating element comprises a ring electrode.
Claim 4
Dependent Claim
14 words
The medical device of claim 1 wherein the ablating element comprises a coil electrode.
Claim 5
Dependent Claim
32 words
The medical device of claim 1 wherein the introduction system comprises a lumen which extends through the catheter into a media introduction opening in the catheter located within the first outer balloon.
Claim 6
Dependent Claim
19 words
The medical device of claim 1 wherein the balloon openings extend around a circumference of the first, outer balloon.
Claim 7
Dependent Claim
21 words
The medical device of claim 5 wherein the balloon openings are located on a distal portion of the first, outer balloon.
Claim 8
Dependent Claim
28 words
The medical device of claim 2 wherein the ring electrode is secured to the catheter at a location within the outer balloon but outside of the inner balloon.
Claim 9
Dependent Claim
28 words
The medical device of claim 3 wherein the coil electrode is secured to the catheter at a location within the outer balloon but outside of the inner balloon.
Claim 10
Dependent Claim
32 words
The medical device of claim 1 further comprising a lumen in the catheter including a distal opening in the catheter, which distal opening is located distal from the first and second balloons.
Claim 11
Dependent Claim
13 words
The medical device of claim 2 wherein the ring electrode emits radiofrequency energy.
Claim 12
Dependent Claim
13 words
The medical device of claim 3 wherein the coil electrode emits radiofrequency energy.
Claim 13
Dependent Claim
15 words
The medical device of claim 1 wherein the conductive media is a conductive saline solution.
Claim 14
Dependent Claim
126 words
A medical device for ablation within a vessel associated with 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 inserted within the lumen of the introducer, a first, outer balloon, secured to the catheter to seal the vessel and substantially prevent the flow of blood through the vessel, a second, inner balloon, secured to the catheter at a location within the first outer balloon, an introduction system secured to the catheter within the first outer balloon, an ablating element secured to the catheter located within the first outer balloon, and a plurality of balloon openings provided in an outside surface of the first outer balloon.
Claim 15
Dependent Claim
126 words
A medical device for ablation within a vessel associated with 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 inserted within the lumen of the introducer, a first, outer balloon, secured to the catheter to seal the vessel and substantially prevent the flow of blood through the vessel, a second, inner balloon, secured to the catheter at a location within the first outer balloon, an introduction system secured to the catheter within the first outer balloon, an ablating element secured to the catheter located within the first outer balloon, and a plurality of balloon openings provided in an outside surface of the first outer balloon.
Claim 16
Dependent Claim
14 words
The medical device of claim 13 wherein the ablating element comprises a ring electrode.
Claim 17
Dependent Claim
14 words
The medical device of claim 13 wherein the ablating element comprises a coil electrode.
Claim 18
Dependent Claim
26 words
The medical device of claim 13 wherein the plurality of balloon openings are provided in a line in the outside surface of the first outer balloon.
Claim 19
Dependent Claim
19 words
The medical device of claim 16 wherein the balloon openings extend around a circumference of the first, outer balloon.
Claim 20
Dependent Claim
21 words
The medical device of claim 16 wherein the balloon openings are located on a distal portion of the first, outer balloon.
Claim 21
Dependent Claim
28 words
The medical device of claim 14 wherein the ring electrode is secured to the catheter at a location within the outer balloon but outside of the inner balloon.
Claim 22
Dependent Claim
28 words
The medical device of claim 15 wherein the coil electrode is secured to the catheter at a location within the outer balloon but outside of the inner balloon.
Claim 23
Dependent Claim
139 words
A process for ablation of tissue within a vessel of a human comprising introducing an ablation catheter into the vessel, wherein the ablation catheter comprises an extended catheter, a first, outer balloon, secured to the catheter, and a second inner balloon, secured to the catheter and located inside the first outer balloon, sealing the vessel to prevent substantially the flow of blood through the vessel by use of the first outer balloon, introducing a conductive media within the first outer balloon through a lumen in the catheter, passing the conductive media through balloon openings in an outside surface of 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 a circumferential ablation lesion.
Claim 24
Dependent Claim
139 words
A process for ablation of tissue within a vessel of a human comprising introducing an ablation catheter into the vessel, wherein the ablation catheter comprises an extended catheter, a first, outer balloon, secured to the catheter, and a second inner balloon, secured to the catheter and located inside the first outer balloon, sealing the vessel to prevent substantially the flow of blood through the vessel by use of the first outer balloon, introducing a conductive media within the first outer balloon through a lumen in the catheter, passing the conductive media through balloon openings in an outside surface of 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 a circumferential ablation lesion.
Claim 25
Dependent Claim
35 words
The medical device of claim 1 wherein the ablating element comprises an electrode, and wherein the electrode is secured to the ablation catheter at a location within the outer balloon, but outside of inner balloon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-06-25 | 2004-12-25 | 2005-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-06-25 | 2008-12-25 | 2009-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-06-25 | 2012-12-25 | 2013-06-26 | $7700.00 | Window Closed / Lapsed |