US6612978B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable cardiac harness for treating congestive heart failure
Assignee: Paracor Medical Inc
•
Filing: 2001-09-10
•
Granted: 2003-09-02
•
Expires: 2021-09-10
Abstract
Abstract A cardiac harness for treating congestive heart failure is disclosed. The harness applies elastic, compressive reinforcement on the left ventricle to reduce deleterious wall tension and to resist shape change of the ventricle during the mechanical cardiac cycle. Rather than imposing a dimension beyond which the heart cannot expand, the harness provides no hard limit over the range of diastolic expansion of the ventricle. Instead, the harness follows the contour of the heart throughout diastole and continuously exerts gentle resistance to stretch. Also disclosed is a method of delivering the cardiac harness to the heart minimally invasively.
Inventors
- 👤 Lilip Lau
- 👤 Bill Hartigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:38
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2478; A61F2/2481; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/148; A61M60/165; A61M60/191; A61M60/20; A61M60/289; A61M60/40; A61M60/465; A61M60/50; A61M60/508; A61M60/515; A61M60/538; A61M60/80; A61M60/855; A61M60/871; A61M60/873; A61M60/882; A61F2002/2484; A61M2205/00; A61M2205/33; A61M2205/3303; A61M2205/35; A61M2205/3507; A61M2205/3523; A61M2205/82; A61M2205/8206; A61M2205/8237; A61M2205/8243
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
65 words
A method, comprising; providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart; providing at least one pad having in a marginal edge; arranging the pad marginal edge in proximity to but not impinging upon a coronary artery; and placing the cardiac harness on the heart so that the harness extends over the pad and coronary artery.
Claim 2
Independent Claim
65 words
A method, comprising; providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart; providing at least one pad having in a marginal edge; arranging the pad marginal edge in proximity to but not impinging upon a coronary artery; and placing the cardiac harness on the heart so that the harness extends over the pad and coronary artery.
Claim 3
Dependent Claim
28 words
The method of claim 1 , wherein arranging the pad marginal edge comprises aligning the marginal edge with a substantial portion of the length of the coronary artery.
Claim 4
Dependent Claim
39 words
The method of claim 1 , wherein the coronary artery is selected from the group consisting of the left anterior descending artery, the right coronary artery, the left circumflex artery, the posterior descending artery, and the obtuse marginal artery.
Claim 5
Dependent Claim
37 words
The method of claim 1 , wherein the cardiac harness comprises an elastic band configured to impart a compressive force on the heart, and the pad is arranged to reduce compression of said artery by said harness.
Claim 6
Dependent Claim
15 words
The method of claim 4 , wherein the cardiac harness comprises interconnected strands of material.
Claim 7
Dependent Claim
33 words
The method of claim 1 , additionally comprising providing a second pad having a marginal edge, and arranging the second pad on an opposite side of the coronary artery from the first pad.
Claim 8
Dependent Claim
26 words
The method of claim 6 , wherein the first and second pads are arranged so that their marginal edges are generally parallel to the coronary artery.
Claim 9
Independent Claim
84 words
A method, comprising: providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart, the harness comprising a slot formed therein; and arranging the cardiac harness on the heart so that the slot is generally aligned with a substantial portion of the length of at least one coronary artery selected from the group consisting of the left anterior descending artery, the right coronary artery, the left circumflex artery, the posterior descending artery, and the obtuse marginal artery.
Claim 10
Independent Claim
84 words
A method, comprising: providing a cardiac harness sized and configured to fit around at least a ventricle of a patient's heart, the harness comprising a slot formed therein; and arranging the cardiac harness on the heart so that the slot is generally aligned with a substantial portion of the length of at least one coronary artery selected from the group consisting of the left anterior descending artery, the right coronary artery, the left circumflex artery, the posterior descending artery, and the obtuse marginal artery.
Claim 11
Dependent Claim
18 words
The method of claim 8 , wherein the slot is defined by a frame integrated into the harness.
Claim 12
Dependent Claim
13 words
The method of claim 9 , wherein the frame comprises a wire frame.
Claim 13
Dependent Claim
22 words
The method of claim 9 , wherein the harness comprises strands of material, and the strands are suspended from the wire frame.
Claim 14
Dependent Claim
17 words
The method of claim 11 , wherein each of the strands comprises at least one spring element.
Claim 15
Dependent Claim
13 words
The method of claim 8 , wherein the harness is substantially unitarily formed.
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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) | 2006-09-01 | 2007-03-03 | 2007-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-01 | 2011-03-03 | 2011-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-01 | 2015-03-03 | 2015-09-02 | $7700.00 | Window Closed / Lapsed |