Patent US6997865B2 successfully refreshed from Google Patents.
US6997865B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac support device with anti-fibrosis lining
Assignee: Mardil Inc
•
Filing: 2004-03-05
•
Granted: 2006-02-14
•
Expires: 2024-03-05
Abstract
Abstract A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
Inventors
- 👤 Clifton A. Alferness
- 👤 Jai Shankar Raman
- 👤 John Melmouth Power
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61P; A61P9/00; A61P9/04; A61F2/0063; A61F2002/0068
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
65 words
A device for treating a disease of a heart, the device comprising: a jacket of flexible material having open cells, wherein said jacket is adapted to be placed on said heart and to snugly conform to an external geometry of said heart to constrain circumferential expansion of said heart during diastole and permit substantially unimpeded contraction of said heart during systole; and an anti-fibrosis lining.
Claim 2
Independent Claim
65 words
A device for treating a disease of a heart, the device comprising: a jacket of flexible material having open cells, wherein said jacket is adapted to be placed on said heart and to snugly conform to an external geometry of said heart to constrain circumferential expansion of said heart during diastole and permit substantially unimpeded contraction of said heart during systole; and an anti-fibrosis lining.
Claim 3
Dependent Claim
18 words
The device according to claim 1 , wherein anti-fibrosis lining is placed between the heart and the jacket.
Claim 4
Dependent Claim
13 words
The device according to claim 1 , wherein said anti-fibrosis lining comprises PTFE.
Claim 5
Dependent Claim
26 words
The device according to claim 1 , wherein said jacket material is selected from any of polyester, polytetrafluoroethylene (PTFE), expanded PTFE (ePTFE), polypropylene and a metal.
Claim 6
Dependent Claim
12 words
A device according to claim 4 wherein said metal is stainless steel.
Claim 7
Dependent Claim
20 words
Thc device according to claim 1 , wherein said jacket is configured to constrain a lower portion of the heart.
Claim 8
Dependent Claim
17 words
The device according to claim 1 , wherein said jacket is sized to circumferentially surround said heart.
Claim 9
Dependent Claim
15 words
The device according to claim 1 , wherein said jacket material comprises interwoven fiber strands.
Claim 10
Dependent Claim
14 words
The device according to claim 1 , wherein said jacket material comprises a knit.
Claim 11
Dependent Claim
21 words
A device according to claim 1 wherein said jacket is adapted to constrain said heart from expanding beyond a maximum volume.
Claim 12
Dependent Claim
20 words
A device according to claim 1 wherein said lining is on a side of said jacket to oppose said heart.
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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) | 2009-02-13 | 2009-08-15 | 2010-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-02-13 | 2013-08-15 | 2014-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-02-13 | 2017-08-15 | 2018-02-14 | $7700.00 | Window Closed / Lapsed |