Patent US2219745A successfully refreshed from Google Patents.
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US7263397B2
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Method and apparatus for catheter navigation and location and mapping in the heart
Assignee: St Jude Medical Atrial Fibrillation Division Inc
•
Filing: 2004-04-06
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Granted: 2007-08-28
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Expires: 2024-04-06
Abstract
Abstract A medical system for finding and displaying the location of electrodes within the body. The electrodes may be used to measure the voltage on the heart wall and display this as an activation map on a geometry representing the heart chamber.
Inventors
- 👤 John A. Hauck
- 👤 Jeff A. Schweitzer
- 👤 Michael Craven
- 👤 Valtino Afonso
- 👤 Holly Cotner
- 👤 Frank Callaghan
- 👤 John Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:01
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/06; A61B5/065; A61B5/103; A61B5/107; A61B5/1076; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61B5/287; A61B5/72; A61B5/7203; A61B5/7207; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/362; A61N1/3625; A61N1/37; A61N1/3702; A61B34/00; A61B34/20; A61B2034/2046; A61B2034/2051; A61B2034/2053; A61B2034/2072; A61B2562/00; A61B2562/04; A61B2562/046
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A method to collect and present cardiac medical information to a physician comprising: applying a set of surface patch electrodes to said patient; positioning an intracavitary electrode on a catheter placed in a heart of said patient; injecting current between pairs of said set of surface patch electrodes, defining driven electrode axes; measuring the voltage present on the intracavitary electrode due to the applied currents; resolving the location of the intracavitary electrode along each of the axes based upon the measured voltage on the intracavitary electrode; collecting multiple intracavitary electrode locations; selecting the exterior most locations and creating a shell based upon the exterior most locations generating a surface geometry; and presenting the surface geometry as an image to the physician.
Claim 2
Independent Claim
121 words
A method to collect and present cardiac medical information to a physician comprising: applying a set of surface patch electrodes to said patient; positioning an intracavitary electrode on a catheter placed in a heart of said patient; injecting current between pairs of said set of surface patch electrodes, defining driven electrode axes; measuring the voltage present on the intracavitary electrode due to the applied currents; resolving the location of the intracavitary electrode along each of the axes based upon the measured voltage on the intracavitary electrode; collecting multiple intracavitary electrode locations; selecting the exterior most locations and creating a shell based upon the exterior most locations generating a surface geometry; and presenting the surface geometry as an image to the physician.
Claim 3
Dependent Claim
42 words
The method of claim 1 further comprising the steps of: measuring voltage on the intracavitary electrode generated by the heart creating EP data; projecting the EP data on the surface geometry; and displaying the location of said intra-cardiac electrode on said image.
Claim 4
Dependent Claim
19 words
The method of claim 2 wherein: said EP data includes the peak to peak value of the voltage measurement.
Claim 5
Dependent Claim
26 words
The method of claim 3 wherein: said EP data includes a time value related to relative timing of the voltage measurement and a pre-selected fiducial time.
References Cited (Backward Citations)
US3954098A
Cited
US4173228A
Cited
US4380237A
Cited
US4304239A
Cited
US4431005A
Cited
US4444195A
Cited
US4572206A
Cited
US4572206B1
Cited
US4559951A
Cited
US4478223A
Cited
US4613866A
Cited
US4522212A
Cited
US4572186A
Cited
US4573473A
Cited
US4697595A
Cited
US4628937A
Cited
US4649924A
Cited
US4660571A
Cited
US4674518A
Cited
US4699147A
Cited
US4898181A
Cited
US4641649A
Cited
US4706670A
Cited
US4721115A
Cited
US4821731A
Cited
US4945305A
Cited
US4940064A
Cited
US4945342A
Cited
US4922912A
Cited
US5158092A
Cited
US4777955A
Cited
US5081993A
Cited
US4890623A
Cited
US5588432A
Cited
US5372138A
Cited
US4840182A
Cited
US4899750A
Cited
US5305745A
Cited
US5000190A
Cited
US4898176A
Cited
US4951682A
Cited
US5054496A
Cited
US5025786A
Cited
US4911174A
Cited
US5029588A
Cited
US5056517A
Cited
US5220924A
Cited
US5042486A
Cited
US5005587A
Cited
US5090411A
Cited
US5360006A
Cited
US5273038A
Cited
US5058583A
Cited
US5054492A
Cited
US5156151A
Cited
US5228442A
Cited
US5345936A
Cited
US5161536A
Cited
US5255678A
Cited
US5282471A
Cited
US5211165A
Cited
US5377678A
Cited
US5325860A
Cited
US5713363A
Cited
US5323781A
Cited
US5237996A
Cited
US5295484A
Cited
US5324284A
Cited
US5411025A
Cited
US5341807A
Cited
US5311866A
Cited
US6990370B1
Cited
US5297549A
Cited
US5662108A
Cited
US5701897A
Cited
US5622174A
Cited
US5687737A
Cited
US5385146A
Cited
US5433198A
Cited
US5601084A
Cited
US6004269A
Cited
US5840031A
Cited
US5551426A
Cited
US5738096A
Cited
US5391199A
Cited
US5409000A
Cited
US5558091A
Cited
US5553611A
Cited
US5458126A
Cited
US5908446A
Cited
US5722402A
Cited
US5797396A
Cited
US5824005A
Cited
US5848972A
Cited
US5697377A
Cited
US5846198A
Cited
US5871019A
Cited
US5669382A
Cited
US6095976A
Cited
US6603996B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-08-27 | 2011-02-26 | 2011-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-08-27 | 2015-02-26 | 2015-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-08-27 | 2019-02-26 | 2019-08-28 | $7700.00 | Window Closed / Lapsed |