Patent US7351200B2 successfully refreshed from Google Patents.
US7351200B2
Expired / Lapsed
US
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Cardiac reinforcement device
Assignee: Mardil Inc
•
Filing: 2004-03-26
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Granted: 2008-04-01
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Expires: 2024-03-26
Abstract
Abstract The present disclosure is directed to a cardiac reinforcement device (CRD) and method for the treatment of cardiomyopathy. The CRD provides for reinforcement of the walls of the heart by constraining cardiac expansion, beyond a predetermined limit, during diastolic expansion of the heart. A CRD of the invention can be applied to the epicardium of the heart to locally constrain expansion of the cardiac wall or to circumferentially constrain the cardiac wall during cardiac expansion.
Inventors
- 👤 Clifton A. Alferness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:38
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/161; A61M60/20; A61M60/247; A61M60/253; A61M60/268; A61M60/40; A61M60/465; A61M60/47; A61F2002/2484; A61F2250/00; A61F2250/0003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A passive cardiac reinforcement device for constraining outward expansion of a heart wall of a patient's heart during diastole, said device comprising: a jacket for exerting a variable amount of pressure on the heart as a function of an amount of dilation of the heart, the jacket constructed from a biomedical material, said biomedical material being elastic and radiopaque, and said jacket having an apical end and a base end and a predetermined size selected to surround an external surface of said heart.
Claim 2
Dependent Claim
83 words
A passive cardiac reinforcement device for constraining outward expansion of a heart wall of a patient's heart during diastole, said device comprising: a jacket for exerting a variable amount of pressure on the heart as a function of an amount of dilation of the heart, the jacket constructed from a biomedical material, said biomedical material being elastic and radiopaque, and said jacket having an apical end and a base end and a predetermined size selected to surround an external surface of said heart.
Claim 3
Dependent Claim
15 words
A device according to claim 1 wherein said jacket is sized to constrain diastolic expansion.
Claim 4
Dependent Claim
27 words
A device according to claim 1 wherein said material is formed in an open cell construction with a plurality of open cells defined by interconnected, elongated elements.
Claim 5
Dependent Claim
20 words
A device according to claim 1 wherein said jacket is sized to be applied to the epicardium of the heart.
Claim 6
Dependent Claim
20 words
A device according to claim 1 wherein said jacket is sized to be applied to the pericardium of the heart.
Claim 7
Dependent Claim
19 words
A device according to claim 1 wherein the biomedical material that is radiopaque is platinum, titanium, or stainless steel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2011-04-01 | 2011-10-01 | 2012-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-04-01 | 2015-10-01 | 2016-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-04-01 | 2019-10-01 | 2020-04-01 | $7700.00 | Window Closed / Lapsed |