US6908426B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardiac disease treatment and device
Assignee: Acorn Cardiovascular Inc
•
Filing: 2003-08-12
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Granted: 2005-06-21
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Expires: 2023-08-12
Abstract
Abstract A cardiac constraint device comprising a jacket of biological compatible material and an adjustment member. The jacket is adapted to be secured to the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole. The adjustment mechanism is configured to alter the internal volume defined by the jacket after the jacket is secured to the heart. The invention also provides a method for treating cardiac disease.
Inventors
- 👤 J. Edward Shapland
- 👤 Robert G. Walsh
- 👤 John David Dockter
- 👤 John C. Vanden Hoek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/14; A61L31/148; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61L31/005; A61L31/02; A61L31/022; A61L31/04; A61L31/042; A61L31/048; A61L31/06; A61L31/146; A61F2250/00; A61F2250/0014; A61F2250/003; A61F2250/0031
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
An apparatus for placement on a heart of a patient to treat a heart condition characterized at least in part by diastolic expansion of a size of the heart, the jacket comprising: (a) a flexible and compliant, biocompatible material formed in a jacket having an internal volume and an opening exposing said internal volume; (i) said jacket sized to be placed over said heart with an apex of said heart passed through said opening and with at least a ventricular portion of said heart received within said volume; (ii) said jacket further sized to present a resistance to diastolic expansion; (iii) said material of said jacket including at least a shape-memory material; and (iv) said material includes a fibrosis inhibiting biomaterial.
Claim 2
Independent Claim
121 words
An apparatus for placement on a heart of a patient to treat a heart condition characterized at least in part by diastolic expansion of a size of the heart, the jacket comprising: (a) a flexible and compliant, biocompatible material formed in a jacket having an internal volume and an opening exposing said internal volume; (i) said jacket sized to be placed over said heart with an apex of said heart passed through said opening and with at least a ventricular portion of said heart received within said volume; (ii) said jacket further sized to present a resistance to diastolic expansion; (iii) said material of said jacket including at least a shape-memory material; and (iv) said material includes a fibrosis inhibiting biomaterial.
Claim 3
Dependent Claim
13 words
An apparatus according to claim 1 wherein: (a) said shape-memory material is nitinol.
Claim 4
Dependent Claim
12 words
An apparatus according to claim 1 wherein: (a) said material is elastic.
Claim 5
Dependent Claim
20 words
An apparatus according to claim 1 wherein: (a) said jacket is sized to constrain diastolic expansion beyond a predetermined limit.
Claim 6
Dependent Claim
28 words
An apparatus according to claim 1 wherein: (a) said material is formed in an open cell construction with a plurality of open cells defined by interconnected, elongated elements.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 1 wherein: (a) said jacket is sized to be applied to the epicardium of the heart.
Claim 8
Dependent Claim
21 words
An apparatus according to claim 1 wherein: (a) said jacket is sized to be applied to the pericardium of the heart.
Claim 9
Independent Claim
122 words
An apparatus for placement on a heart of a patient to treat a heart condition characterized at least in part by diastolic expansion of a size of the heart, the jacket comprising: (a) a flexible and compliant, biocompatible material formed in a jacket having an internal volume and an onening exposing said internal volume; (i) said jacket sized to be placed over said heart with an apex of said heart passed through said opening and with at least a ventricular portion of said heart received within said volume; (ii) said jacket further sized to present a resistance to diastolic expansion; (iii) said material of said jacket incluiding at least a shape-memory material; and (iv) said material is coated with a second material.
Claim 10
Independent Claim
122 words
An apparatus for placement on a heart of a patient to treat a heart condition characterized at least in part by diastolic expansion of a size of the heart, the jacket comprising: (a) a flexible and compliant, biocompatible material formed in a jacket having an internal volume and an onening exposing said internal volume; (i) said jacket sized to be placed over said heart with an apex of said heart passed through said opening and with at least a ventricular portion of said heart received within said volume; (ii) said jacket further sized to present a resistance to diastolic expansion; (iii) said material of said jacket incluiding at least a shape-memory material; and (iv) said material is coated with a second material.
Claim 11
Dependent Claim
16 words
An apparatus according to claim 8 wherein: (a) said second material is a fibrosis inhibiting biomaterial.
Claim 12
Dependent Claim
13 words
An apparatus according to claim 8 wherein: (a) said shape-memory material is nitinol.
Claim 13
Dependent Claim
20 words
An apparatus according to claim 8 wherein: (a) said jacket is sized to constrain diastolic expansion beyond a predetermined limit.
Claim 14
Dependent Claim
31 words
An apparatus according to claim 8 wherein: (a) said material of said jacket is formed in an open cell construction with a plurality of open cells defined by interconnected, elongated elements.
Claim 15
Dependent Claim
21 words
An apparatus according to claim 8 wherein: (a) said jacket is sized to be applied to the epicardium of the heart.
Claim 16
Dependent Claim
21 words
An apparatus according to claim 8 wherein: (a) said jacket is sized to be applied to the pericardium of the 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) | 2008-06-20 | 2008-12-20 | 2009-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-06-20 | 2012-12-20 | 2013-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-06-20 | 2016-12-20 | 2017-06-21 | $7700.00 | Window Closed / Lapsed |