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US6562019B1
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Method of utilizing a magnetically guided myocardial treatment system
Assignee: Stereotaxis Inc
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Filing: 1999-09-20
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Granted: 2003-05-13
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Expires: 2019-09-20
Abstract
Abstract A magnetically tipped catheter is used t tunnel into the myocardium for cardiac treatment.
Inventors
- 👤 Jonathan C. Sell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:55
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0127; A61B; A61B90/00; A61B90/10; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
A method of treating the heart comprising the steps of: navigating a catheter to the myocardium; causing the catheter to enter the myocardium assisted by the application of externally generated magnetic fields and gradients, to create a tunnel in the myocardium; delivering a magnetically bound drug to the tunnel in the myocardium; withdrawing the catheter while retaining the drug in the tunnel with an externally generated magnetic gradient.
Claim 2
Independent Claim
68 words
A method of treating the heart comprising the steps of: navigating a catheter to the myocardium; causing the catheter to enter the myocardium assisted by the application of externally generated magnetic fields and gradients, to create a tunnel in the myocardium; delivering a magnetically bound drug to the tunnel in the myocardium; withdrawing the catheter while retaining the drug in the tunnel with an externally generated magnetic gradient.
Claim 3
Independent Claim
92 words
A method for myocardial treatment comprising the steps of: navigating a catheter, having a tip, to a treatment site on the myocardium; magnetically holding the tip against the moving surface of the myocardium using an external source magnet; applying energy to the tip to form a tunnel into the myocardium; injecting a therapeutic agent into the tunnel formed in the myocardium; and withdrawing the catheter and cauterizing the tunnel at a tunnel opening upon exit of the catheter from the tunnel whereby drug left in the tunnel is sealed in the tunnel.
Claim 4
Independent Claim
92 words
A method for myocardial treatment comprising the steps of: navigating a catheter, having a tip, to a treatment site on the myocardium; magnetically holding the tip against the moving surface of the myocardium using an external source magnet; applying energy to the tip to form a tunnel into the myocardium; injecting a therapeutic agent into the tunnel formed in the myocardium; and withdrawing the catheter and cauterizing the tunnel at a tunnel opening upon exit of the catheter from the tunnel whereby drug left in the tunnel is sealed in the tunnel.
Claim 5
Independent Claim
54 words
A method of treating the heart comprising the steps of: navigating a catheter to the myocardium; entering the myocardium assisted by the application of externally generated magnetic fields and gradients; creating an arcuate tunnel in the myocardium encircling a region of heart tissue; and delivering a therapeutic agent to the tunnel in the myocardium.
Claim 6
Independent Claim
54 words
A method of treating the heart comprising the steps of: navigating a catheter to the myocardium; entering the myocardium assisted by the application of externally generated magnetic fields and gradients; creating an arcuate tunnel in the myocardium encircling a region of heart tissue; and delivering a therapeutic agent to the tunnel in the myocardium.
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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) | 2006-05-12 | 2006-11-11 | 2007-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-05-12 | 2010-11-11 | 2011-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-05-12 | 2014-11-11 | 2015-05-13 | $7700.00 | Window Closed / Lapsed |