US6893392B2
Expired / Lapsed
US
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Cardiac reinforcement device
Assignee: Mardil Inc
•
Filing: 2003-02-13
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Granted: 2005-05-17
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Expires: 2023-02-13
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
2026-10-23 17:20
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: 27
Claim 1
Independent Claim
110 words
A cardiac reinforcement device for reinforcement of the heart wall at a localized area, said heart comprising an epicardial surface, and a parietal pericardium, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart at the localized area in need of reinforcement without completely surrounding a circuference of the heart; a peripheral edge; a means for applying at least a portion of said peripheral edae to said heart, wherein said device is sized to cover said localized area of said heart wall in need of reinforcement; and wherein said biomedical material has a compliance that is less than that of the heart wall.
Claim 2
Dependent Claim
110 words
A cardiac reinforcement device for reinforcement of the heart wall at a localized area, said heart comprising an epicardial surface, and a parietal pericardium, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart at the localized area in need of reinforcement without completely surrounding a circuference of the heart; a peripheral edge; a means for applying at least a portion of said peripheral edae to said heart, wherein said device is sized to cover said localized area of said heart wall in need of reinforcement; and wherein said biomedical material has a compliance that is less than that of the heart wall.
Claim 3
Dependent Claim
15 words
The device according to claim 1 , wherein said device comprises an open mesh material.
Claim 4
Dependent Claim
14 words
The device according to claim 1 , wherein said biomedical material comprises polyester mesh.
Claim 5
Dependent Claim
14 words
The device according to claim 1 , wherein said biomedical material comprises silicon rubber.
Claim 6
Dependent Claim
20 words
The device according to claim 1 , wherein said peripheral edge is configured to enhance the strength of the device.
Claim 7
Dependent Claim
29 words
The device according to claim 1 , wherein said device is configured to be applied to the epicardial surface of the heart over the parietal pericardium of the heart.
Claim 8
Dependent Claim
29 words
The device according to claim 1 , wherein said device is configured to be applied to the epicardial surface of the heart under the parietal pericardium of the heart.
Claim 9
Dependent Claim
22 words
The device according to claim 1 , wherein said portion of the heart in need of localized support comprises a cardiac aneurysm.
Claim 10
Dependent Claim
32 words
The device according to claim 1 , wherein said portion of the heart in need of localized support comprises an area of the myocardium that has been damaged due to myocardial infarction.
Claim 11
Dependent Claim
25 words
The device of claim 1 , wherein said means for applying said peripheral edge of said device to said heart is at least one suture.
Claim 12
Dependent Claim
72 words
A cardiac reinforcement device for reinforcement of the heart wall at a localized area, said heart comprising an epicardial surface, a parietal pericardium, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart at the localized area in need of reinforcement without completely surrounding a circuference of the heart, wherein said biomedical material has a compliance that is less than that of the heart wall.
Claim 13
Dependent Claim
72 words
A cardiac reinforcement device for reinforcement of the heart wall at a localized area, said heart comprising an epicardial surface, a parietal pericardium, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart at the localized area in need of reinforcement without completely surrounding a circuference of the heart, wherein said biomedical material has a compliance that is less than that of the heart wall.
Claim 14
Independent Claim
133 words
A method of treating a heart in need of localized reinforcement comprising the steps of: (a) accessing a localized area of a surface of a heart in need of localized reinforcement; (b) selecting a device comprising: (i) a biomedical material which can be applied to the epicardeial surface of the heart at the localized area in need of reinforcement without completely surrounding a circumference of the heart; (ii) a peripheral edge; and (iii) a means for applying at least a portion of the peripheral edge to the heart, wherein the device is sized to cover the localized area of the heart; (c) applying the device to the epicardial surface of the heart at the localized area; and (d) affixing at least a portion of the peripheral edge of the device to the heart.
Claim 15
Independent Claim
133 words
A method of treating a heart in need of localized reinforcement comprising the steps of: (a) accessing a localized area of a surface of a heart in need of localized reinforcement; (b) selecting a device comprising: (i) a biomedical material which can be applied to the epicardeial surface of the heart at the localized area in need of reinforcement without completely surrounding a circumference of the heart; (ii) a peripheral edge; and (iii) a means for applying at least a portion of the peripheral edge to the heart, wherein the device is sized to cover the localized area of the heart; (c) applying the device to the epicardial surface of the heart at the localized area; and (d) affixing at least a portion of the peripheral edge of the device to the heart.
Claim 16
Dependent Claim
18 words
The method of claim 12 , wherein said step of accessing the heart is accomplished through a thoracotomy.
Claim 17
Dependent Claim
25 words
The method of claim 12 , wherein said step of applying at least a portion of the peripheral edge comprises forming at least on suture.
Claim 18
Dependent Claim
28 words
The method of claim 12 , wherein said step of applying at least a portion of the peripheral edge comprises suturing around the peripheral edge of the device.
Claim 19
Dependent Claim
15 words
The method of claim 12 , wherein the device is applied under the parietal pericardium.
Claim 20
Dependent Claim
15 words
The method of claim 12 , wherein the device is applied over the parietal pericardium.
Claim 21
Dependent Claim
17 words
The method of claim 12 , wherein said device is selected to comprise an open mesh material.
Claim 22
Dependent Claim
17 words
The method of claim 12 , wherein said biomedical material is selected to comprise a polyester mesh.
Claim 23
Dependent Claim
17 words
The method of claim 12 , wherein said biomedical material is selected to comprise a silicon rubber.
Claim 24
Dependent Claim
22 words
The method of claim 12 , wherein said peripheral edge is selected to be configured to enhance the strength of the device.
Claim 25
Dependent Claim
21 words
The method of claim 12 , wherein said portion of the heart in need of localized support comprises a cardiac aneurysm.
Claim 26
Dependent Claim
31 words
The method of claim 12 , wherein said portion of the heart in need of localized support comprises an area of the myocardium that has been damaged due to myocardial infarction.
Claim 27
Dependent Claim
25 words
The method of claim 12 , wherein said biomedical material is selected to have a compliance that is less than that of the heart wall.
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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) | 2008-05-16 | 2008-11-15 | 2009-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-05-16 | 2012-11-15 | 2013-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-05-16 | 2016-11-15 | 2017-05-17 | $7700.00 | Window Closed / Lapsed |