US6406488B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Healing transmyocardial implant
Assignee: Horizon Technology Funding Co LLC
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Filing: 1998-08-27
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Granted: 2002-06-18
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Expires: 2018-08-27
Abstract
Abstract A transmyocardial implant establishes a blood flow path through a myocardium between a heart chamber and a lumen of a coronary vessel residing on an exterior of the heart. The implant includes a coronary portion sized to be received within the vessel. A myocardial portion is sized to pass through the myocardium into the heart chamber. A transition portion connects the coronary and myocardial portions for directing blood flow from the myocardial portion to the coronary portion. The coronary portion and the myocardial portion have an open construction for permitting tissue growth across a wall thickness of the coronary portion and the myocardial portion. The myocardial portion includes an agent for controlling a coagulation cascade and platelet formation.
Inventors
- 👤 Katherine S. Tweden
- 👤 Guy P. Vanney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:16
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/82; A61F2/94; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61F2/24; A61F2/2493; A61F2/86; A61F2/90; A61F2/91; A61F2/915; A61B; A61B17/00; A61B17/04; A61B17/11; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61F2/07; A61F2/95; A61F2/958; A61F2002/828; A61F2002/91533; A61F2002/9155; A61F2002/91558; A61F2220/00; A61F2220/0008; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/0054; A61F2250/00; A61F2250/0058; A61F2250/0067
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
175 words
A transmyocardial implant for defining a blood flow pathway directly from a left ventricle through a heart wall to a coronary vessel, the implant comprising: a coronary portion sized to be received within the vessel; a myocardial portion sized to pass through the myocardium into the left ventricle; a transition portion connecting the coronary and myocardial portion for directing blood flow from the myocardial portion and into the coronary portion; at least the coronary portion and the myocardial portion having an open construction for permitting tissue growth across a wall thickness of the coronary portion and the myocardial portion; the myocardial portion including an agent for controlling a coagulation cascade and platelet activation; a porous lining covering the myocardial portion with the porous lining having pores smaller than openings of the open construction of the myocardial portion, the porous lining having a length substantially equal to a width of the heart wall; and the porous lining covering at least the open construction of the myocardial portion but not the open construction of the coronary portion.
Claim 2
Dependent Claim
175 words
A transmyocardial implant for defining a blood flow pathway directly from a left ventricle through a heart wall to a coronary vessel, the implant comprising: a coronary portion sized to be received within the vessel; a myocardial portion sized to pass through the myocardium into the left ventricle; a transition portion connecting the coronary and myocardial portion for directing blood flow from the myocardial portion and into the coronary portion; at least the coronary portion and the myocardial portion having an open construction for permitting tissue growth across a wall thickness of the coronary portion and the myocardial portion; the myocardial portion including an agent for controlling a coagulation cascade and platelet activation; a porous lining covering the myocardial portion with the porous lining having pores smaller than openings of the open construction of the myocardial portion, the porous lining having a length substantially equal to a width of the heart wall; and the porous lining covering at least the open construction of the myocardial portion but not the open construction of the coronary portion.
Claim 3
Dependent Claim
13 words
An implant according to claim 1 further comprising an agent for encouraging healing.
Claim 4
Dependent Claim
16 words
An implant according to claim 2 wherein the agent for encouraging healing is a growth factor.
Claim 5
Dependent Claim
13 words
An implant according to claim 1 wherein the porous lining contains the agent.
Claim 6
Dependent Claim
11 words
An implant according to claim 1 wherein the agent is heparin.
Claim 7
Dependent Claim
12 words
An implant according to claim 1 wherein the agent is an anti-coagulant.
Claim 8
Dependent Claim
12 words
An implant according to claim 1 wherein the agent is an anti-platelet.
Claim 9
Dependent Claim
21 words
An implant according to claim 1 wherein the coronary portion is expandable from a first diameter to an enlarged second diameter.
Claim 10
Dependent Claim
21 words
An implant according to claim 1 wherein the myocardial portion is expandable from a first diameter to an enlarged second diameter.
Claim 11
Dependent Claim
20 words
An implant according to claim 1 wherein the transition portion permits articulation between the coronary portion and the myocardial portion.
Claim 12
Dependent Claim
16 words
An implant according to claim 1 wherein the porous lining is constructed of a polyester fabric.
Claim 13
Dependent Claim
14 words
An implant according to claim 11 wherein the porous lining is constructed of Dacron.
Claim 14
Dependent Claim
24 words
An implant according to claim 1 wherein the porous lining is constructed on the interior portion of the open construction of the myocardial portion.
Claim 15
Dependent Claim
14 words
An implant according to claim 1 wherein the transition portion is of solid construction.
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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) | 2005-06-17 | 2005-12-17 | 2006-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-17 | 2009-12-17 | 2010-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-17 | 2013-12-17 | 2014-06-18 | $7700.00 | Window Closed / Lapsed |