Patent US5947938A successfully refreshed from Google Patents.
US5947938A
Expired / Lapsed
US
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Process for the nonsurgical mapping and/or treatment of ectopic atrial tachycardia using a guiding introducer
Assignee: St Jude Medical Atrial Fibrillation Division Inc
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Filing: 1997-01-10
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Granted: 1999-09-07
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Expires: 2017-01-10
Abstract
Abstract A process for the treatment of ectopic atrial tachycardia by use of ablation and/or mapping procedures comprising ablating discrete locations within the right atrium of the heart by use of an ablation catheter and a precurved guiding introducer. Also disclosed is a shape for the guiding introducer to be used for the ablation and/or mapping of the discrete locations within the right atrium for the treatment of ectopic atrial tachycardia.
Inventors
- 👤 John F. Swartz
- 👤 John D. Ockuly
- 👤 James A. Hassett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0041; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
44 words
A precurved, cardiac chamber guiding introducer comprising a first, second and third sections and a lumen extending from a proximal to a distal end of the guiding introducer, wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium.
Claim 2
Dependent Claim
44 words
A precurved, cardiac chamber guiding introducer comprising a first, second and third sections and a lumen extending from a proximal to a distal end of the guiding introducer, wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium.
Claim 3
Dependent Claim
21 words
The precurved, cardiac chamber guiding introducer of claim 1 wherein the first section is a generally elongated, hollow straight introducer section.
Claim 4
Dependent Claim
27 words
The precurved, cardiac chamber guiding introducer of claim 1 wherein the second section comprises a curved section with an inner angle of about 130° to about 180°.
Claim 5
Dependent Claim
50 words
The precurved, cardiac chamber guiding introducer of claim 1 wherein the third section comprises a straight portion and a curved portion wherein the straight portion is from about 0.50 to about 2.00 in. in length and the curved portion is curved with an angle of about 50° to about 130°.
Claim 6
Dependent Claim
27 words
The precurved, cardiac chamber guiding introducer of claim 4 wherein the overall length of the curved portion is from about 0.20 to about 1.00 in. in length.
Claim 7
Dependent Claim
21 words
The guiding introducer of claim 3 wherein the radius of the curved section is from abut 1.2 to about 2.2 in.
Claim 8
Dependent Claim
25 words
The guiding introducer of claim 4 wherein the radius of the curved portion of the third section is from about 0.1 to about 0.7 in.
Claim 9
Dependent Claim
71 words
A precurved, cardiac chamber guiding introducer comprising a first, second and third sections, wherein the first section comprises an elongated, generally straight section, wherein the second section comprises a curved portion which curves in an angle of about 130° to about 180°, wherein the third section comprises a straight portion and a curved portion and wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium.
Claim 10
Dependent Claim
71 words
A precurved, cardiac chamber guiding introducer comprising a first, second and third sections, wherein the first section comprises an elongated, generally straight section, wherein the second section comprises a curved portion which curves in an angle of about 130° to about 180°, wherein the third section comprises a straight portion and a curved portion and wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium.
Claim 11
Dependent Claim
45 words
The precurved, cardiac chamber guiding introducer of claim 8 wherein the straight portion of the third section is from about 0.50 to about 2.00 in. in length and the curved portion of the third section curves with an angle of about 50° to about 130°.
Claim 12
Dependent Claim
28 words
The precurved, cardiac chamber guiding introducer of claim 8 wherein the radius of the curved portion of the second section is from abut 1.2 to about 2.2 in.
Claim 13
Dependent Claim
31 words
The precurved, cardiac chamber guiding introducer of claim 8 wherein the overall length of the curved portion of the third section is from about 0.20 to about 1.00 in. in length.
Claim 14
Dependent Claim
27 words
The precurved, cardiac chamber guiding introducer of claim 9 wherein the radius of the curved portion of the third section is about 0.1 to about 0.7 in.
Claim 15
Dependent Claim
22 words
The guiding introducer of claim 1 wherein the third section curves out of a plane formed by the first and second sections.
Claim 16
Dependent Claim
31 words
The guiding introducer of claim 1 wherein the third section curves out of a plane formed by the first and second sections at an angle from about 50 to about 130°.
Claim 17
Dependent Claim
46 words
The guiding introducer of claim 1 wherein the third section curves out of a plane formed by the first and second sections at an angle from about 50 to about 130° and wherein the radius of the angle is from about 0.10 to about 0.70 in.
Claim 18
Dependent Claim
20 words
The guiding introducer of claim 13 wherein the third section is from about 0.2 to about 1.0 in. in length.
Claim 19
Dependent Claim
84 words
A cardiac ablation system comprising (a) a precurved, cardiac chamber guiding introducer comprising a first, second and third sections and a lumen extending from a proximal to a distal end of the guiding introducer, wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium; and (b) an ablation catheter for ablating cardiac tissue slidably engaged within the lumen of the guiding introducer, wherein a portion of the ablation catheter extends beyond the distal end of the guiding introducer.
Claim 20
Dependent Claim
84 words
A cardiac ablation system comprising (a) a precurved, cardiac chamber guiding introducer comprising a first, second and third sections and a lumen extending from a proximal to a distal end of the guiding introducer, wherein the guiding introducer is shaped to conform to an anatomical structure of the right atrium; and (b) an ablation catheter for ablating cardiac tissue slidably engaged within the lumen of the guiding introducer, wherein a portion of the ablation catheter extends beyond the distal end of the guiding introducer.
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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) | 2002-09-06 | 2003-03-08 | 2003-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-06 | 2007-03-08 | 2007-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-06 | 2011-03-08 | 2011-09-07 | $7700.00 | Window Closed / Lapsed |