US20040059182A1
Expired / Lapsed
US
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Cardiac reinforcement device
Assignee: Mardil Inc
•
Filing: 2003-09-23
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Granted: —
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Expires: 2023-09-23
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 Alferness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
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: 30
Claim 1
Independent Claim
42 words
1 . A cardiac reinforcement device, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit.
Claim 2
Dependent Claim
42 words
1 . A cardiac reinforcement device, said device comprising: a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit.
Claim 3
Dependent Claim
30 words
2 . The cardiac reinforcement device according to claim 1 wherein said biomedical material is an open mesh patch, said size selected for said patch to locally constrain cardiac expansion.
Claim 4
Dependent Claim
38 words
3 . The cardiac reinforcement device according to claim 1 wherein said biomedical material is a jacket with said predetermined size selected for said jacket to surround the epicardial surface of the heart and circumferentially constrain cardiac expansion.
Claim 5
Dependent Claim
67 words
4 . The cardiac reinforcement device according to claim 3 wherein said jacket has a base end, said base end having an opening for applying said jacket to the epicardial surface of the heart by passing the jacket over the epicardial surface of the heart such that when applied to said epicardial surface, said base end of said jacket is oriented toward the base of the heart.
Claim 6
Dependent Claim
39 words
5 . The cardiac reinforcement device according to claim 3 wherein said jacket has an apex end such that when said jacket is applied to said epicardial surface, said apex end is oriented towards the apex of the heart.
Claim 7
Dependent Claim
29 words
6 . The cardiac reinforcement device according to claim 5 wherein said apex end of said jacket has an opening for protrusion of the apex of the heart therethrough.
Claim 8
Dependent Claim
33 words
7 . The cardiac reinforcement device according to claim 4 wherein said base end of said jacket further includes a securing arrangement for securing said jacket to said epicardial surface of the heart.
Claim 9
Dependent Claim
40 words
8 . The cardiac reinforcement device of claim 7 wherein said securing arrangement for securing said jacket to said epicardial surface of the heart is a circumferential attachment device which surrounds said opening at said base end of said jacket.
Claim 10
Dependent Claim
32 words
9 . The cardiac reinforcement device according to claim 4 wherein said jacket includes a mechanism for selectively adjusting said predetermined size of said jacket surrounding the epicardial surface of the heart.
Claim 11
Dependent Claim
44 words
10 . The cardiac reinforcement device according to claim 9 wherein said mechanism for selectively adjusting said predetermined size of said jacket is a slot, said slot having opposing lateral edges which decrease said predetermined size by moving said opposing lateral edges closer together.
Claim 12
Dependent Claim
25 words
11 . The cardiac reinforcement device according to claim 10 including a lateral attachment device for fastening together said lateral opposing edges of said slot.
Claim 13
Dependent Claim
34 words
12 . The cardiac reinforcement device according to claim 9 wherein said mechanism for selectively adjusting said predetermined size of said jacket is an inflatable member mounted between said jacket and the epicardial surface.
Claim 14
Dependent Claim
19 words
13 . The cardiac reinforcement device according to claim 1 wherein said biomedical material is an open mesh material.
Claim 15
Dependent Claim
18 words
14 . The cardiac reinforcement device according to claim 1 wherein said biomedical material is a polyester mesh.
Claim 16
Dependent Claim
17 words
15 . The cardiac reinforcement device according to claim 1 wherein said biomedical material is silicon rubber.
Claim 17
Dependent Claim
18 words
16 . The cardiac reinforcement device according to claim 1 wherein said biomedical material includes a radiopaque marker.
Claim 18
Dependent Claim
18 words
17 . The cardiac reinforcement device according to claim 16 wherein said radiopaque marker is a platinum wire.
Claim 19
Dependent Claim
83 words
18 . A method for treating cardiac disease, said method comprising: (a) selecting a cardiac reinforcement device, said cardiac reinforcement device comprising: (i) a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit; (b) applying said cardiac reinforcement device to the epicardial surface of the heart; and (c) securing said cardiac reinforcement device to said epicardial surface of the heart.
Claim 20
Dependent Claim
83 words
18 . A method for treating cardiac disease, said method comprising: (a) selecting a cardiac reinforcement device, said cardiac reinforcement device comprising: (i) a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit; (b) applying said cardiac reinforcement device to the epicardial surface of the heart; and (c) securing said cardiac reinforcement device to said epicardial surface of the heart.
Claim 21
Dependent Claim
37 words
19 . The method according to claim 18 wherein said cardiac reinforcement device is a jacket with said predetermined size selected for said jacket to surround the epicardial surface of the heart and circumferentially constrain cardiac expansion.
Claim 22
Dependent Claim
28 words
20 . The method according to claim 18 wherein said cardiac reinforcement device is a patch, said size selected for said patch to locally constrain said cardiac expansion.
Claim 23
Dependent Claim
29 words
21 . The method according to claim 18 wherein said cardiac reinforcement device is applied to the epicardial surface of the heart under the parietal layer of the pericardium.
Claim 24
Dependent Claim
29 words
22 . The method according to claim 18 wherein said cardiac reinforcement device is applied to the epicardial surface of the heart over the parietal layer of the pericardium.
Claim 25
Dependent Claim
21 words
23 . The method according to claim 19 wherein said cardiac reinforcement device is applied to said epicardial surface via thorascopy.
Claim 26
Dependent Claim
15 words
24 . The method according to claim 18 wherein said cardiac disease is heart failure.
Claim 27
Dependent Claim
14 words
25 . The method according to claim 18 wherein said cardiac disease is cardiomyopathy.
Claim 28
Dependent Claim
22 words
26 . The method according to claim 19 wherein said predetermined size of said jacket is reduced as cardiac size is reduced.
Claim 29
Dependent Claim
87 words
27 . A method for reducing the diastolic volume of the heart, said method comprising: (a) selecting a cardiac reinforcement device, said cardiac reinforcement device comprising: (i) a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit; (b) applying said cardiac reinforcement device to the epicardial surface of the heart; and (c) securing said cardiac reinforcement device to said epicardial surface of the heart.
Claim 30
Dependent Claim
87 words
27 . A method for reducing the diastolic volume of the heart, said method comprising: (a) selecting a cardiac reinforcement device, said cardiac reinforcement device comprising: (i) a biomedical material which can be applied to the epicardial surface of the heart and which expands to a predetermined size, said predetermined size selected to constrain cardiac expansion beyond a predetermined limit; (b) applying said cardiac reinforcement device to the epicardial surface of the heart; and (c) securing said cardiac reinforcement device to said epicardial surface of the heart.
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