US6974476B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percutaneous aortic valve
Assignee: Rex Medical LP
•
Filing: 2003-05-05
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Granted: 2005-12-13
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Expires: 2023-05-05
Abstract
Abstract The present invention provides a valve configured for insertion on the proximal and distal sides of a heart valve annulus to replace the heart valve of a patient. The valve comprises a first substantially annular portion adapted to be positioned on a proximal side of the annulus of a patient and a second substantially annular portion adapted to be positioned on a distal side of the annulus of a patient, wherein at least one of the first and second substantially annular portions is movable towards the other portion to a clamped position to clamp around the annulus. The second portion has a flow restricting portion extending therefrom and is movable between a first position to permit the flow of blood and a second position to restrict the flow of blood. In one embodiment, the valve has a suture joining the first and second portions to draw the first and second portions into closer proximity and a cinch member to secure the suture to maintain the first and second portions in the clamped position. In another embodiment, the first and second portions are connected by a first segment which biases the first and second portions toward the clamped position.
Inventors
- 👤 James F. McGuckin, Jr.
- 👤 Peter W. J. Hinchliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2421; A61F2/2427; A61F2/2436; A61B; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00243; A61F2230/00; A61F2230/0063; A61F2230/0091; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/904
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
176 words
A valve configured for insertion on the proximal and distal sides of a heart valve annulus to replace the heart valve of a patient, the valve comprising: a first substantially annular portion adapted to be positioned on a first side of the annulus of a patient; a second substantially annular portion adapted to be positioned on a second side of the annulus of a patient, at least one of the first and second substantially annular portions being movable towards the other portion to a clamped position to clamp around the annulus, the second substantially annular portion having a flow restricting portion extending therefrom and movable between a first position to permit the flow of blood and a second position to restrict the flow of blood, a suture joining the first and second portions wherein tensioning of the suture draws the first and second portions to the clamped position and a cinch member positioned on the suture and connected to the second portion to retain the suture and the first and second portions in the clamped position.
Claim 2
Dependent Claim
176 words
A valve configured for insertion on the proximal and distal sides of a heart valve annulus to replace the heart valve of a patient, the valve comprising: a first substantially annular portion adapted to be positioned on a first side of the annulus of a patient; a second substantially annular portion adapted to be positioned on a second side of the annulus of a patient, at least one of the first and second substantially annular portions being movable towards the other portion to a clamped position to clamp around the annulus, the second substantially annular portion having a flow restricting portion extending therefrom and movable between a first position to permit the flow of blood and a second position to restrict the flow of blood, a suture joining the first and second portions wherein tensioning of the suture draws the first and second portions to the clamped position and a cinch member positioned on the suture and connected to the second portion to retain the suture and the first and second portions in the clamped position.
Claim 3
Dependent Claim
142 words
A replacement cardiac valve implantation system comprising: a valve comprising a moving member, a first wire element having a first ring-like portion and a second separate wire element having a ring-like portion and a replacement valve extending therefrom, at least the first ring like portion being selectively and relatively movable towards and away from the second ring-like portion to selectively adjust the spacing between the first and second wire elements; a delivery member for introducing the wire elements into a patient's body such that the first ring like portion is placed on a first side of the annulus and the second ring like portion with replacement valve is placed on the a second side of the annulus, the moving member moving the first and second ring like portions in closer proximity to secure the valve in a clamped position around the annulus.
Claim 4
Dependent Claim
142 words
A replacement cardiac valve implantation system comprising: a valve comprising a moving member, a first wire element having a first ring-like portion and a second separate wire element having a ring-like portion and a replacement valve extending therefrom, at least the first ring like portion being selectively and relatively movable towards and away from the second ring-like portion to selectively adjust the spacing between the first and second wire elements; a delivery member for introducing the wire elements into a patient's body such that the first ring like portion is placed on a first side of the annulus and the second ring like portion with replacement valve is placed on the a second side of the annulus, the moving member moving the first and second ring like portions in closer proximity to secure the valve in a clamped position around the annulus.
Claim 5
Dependent Claim
63 words
The valve of claim 2 , wherein the valve comprises a plurality of leaflets extending from the second portion in a direction away from the first portion, the leaflets extending circumferentially around the second portion and foldable inwardly towards a convergence region at the midpoint of the second portion so the convergence region is concentric with the second portion to restrict blood flow.
Claim 6
Dependent Claim
64 words
The valve of claim 2 , wherein the valve comprises a plurality of leaflets extending from the second portion in a direction away from the first portion, the leaflets extending circumferentially around the second portion and foldable inwardly towards a convergence region offset from a midpoint of the second portion so the convergence region is eccentric with the second portion to restrict blood flow.
Claim 7
Dependent Claim
72 words
The valve of claim 2 , wherein the valve includes a plurality of spaced apart leaflets extending from the second portion in a direction away from the first portion, the leaflets extending circumferentially around the second portion and foldable inwardly to restrict blood flow, the flow restricting portion further including a membrane joining adjacent leaflets to cooperate with the leaflets to restrict blood flow when the leaflets are in the closed position.
Claim 8
Dependent Claim
36 words
The valve of claim 5 , wherein the leaflets have a thicker portion at a portion closer to the second portion and the membrane has a thinner portion at a portion further from the second portion.
Claim 9
Dependent Claim
29 words
The valve of claim 2 , wherein the valve includes a plurality of foldable leaflets, a portion of adjacent leaflets overlapping in the closed position to restrict blood flow.
Claim 10
Dependent Claim
19 words
The valve of claim 2 , wherein the first and second wire elements are composed of shape memory material.
Claim 11
Dependent Claim
21 words
The valve of claim 8 , wherein the moving member comprises a suture for tensioning the first and second wire elements.
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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) | 2008-12-12 | 2009-06-13 | 2009-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-12-12 | 2013-06-13 | 2013-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-12-12 | 2017-06-13 | 2017-12-13 | $7700.00 | Window Closed / Lapsed |