US7070618B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mitral shield
Assignee: Ancora Heart Inc
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Filing: 2001-10-25
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Granted: 2006-07-04
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Expires: 2021-10-25
Abstract
Abstract A valve shield comprising a shaped sheet of material adapted to be affixed to the annulus of a valve and adapted to extend over at least a portion of at least one leaflet of the valve so as to assist or replace the closing function of that valve leaflet.
Inventors
- 👤 Richard B. Streeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2442; A61F2/2445; A61F2/2454
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
117 words
A valve shield comprising a substantially flat shaped sheet of material structured for affixing to an annulus of a cardiac valve having first and second leaflets, said shaped sheet of material being of substantially uniform thickness and sized to have a surface area and a surface configuration substantially matching a substantially total surface area and a substantially total surface configuration of the first leaflet of the valve, and shaped complimentarily to the second leaflet so as to be substantially wholly contactable by an edge portion of the second leaflet of the valve, whereby to facilitate interengagement of the second leaflet edge portion and an edge portion of the sheet of material to effect closing of the valve.
Claim 2
Dependent Claim
117 words
A valve shield comprising a substantially flat shaped sheet of material structured for affixing to an annulus of a cardiac valve having first and second leaflets, said shaped sheet of material being of substantially uniform thickness and sized to have a surface area and a surface configuration substantially matching a substantially total surface area and a substantially total surface configuration of the first leaflet of the valve, and shaped complimentarily to the second leaflet so as to be substantially wholly contactable by an edge portion of the second leaflet of the valve, whereby to facilitate interengagement of the second leaflet edge portion and an edge portion of the sheet of material to effect closing of the valve.
Claim 3
Dependent Claim
26 words
A valve shield according to claim 1 wherein the shaped sheet of material when affixed to the cardiac valve annulus prevents prolapse of the first leaflet.
Claim 4
Dependent Claim
22 words
A valve shield according to claim 2 wherein a total surface configuration of the shaped sheet of material is substantially crescent shaped.
Claim 5
Dependent Claim
24 words
A valve shield according to claim 2 wherein a total surface area of the shaped sheet of material includes at least one opening therein.
Claim 6
Dependent Claim
21 words
A valve shield according to claim 2 wherein a total surface area of the shaped sheet of material is substantially solid.
Claim 7
Dependent Claim
29 words
A valve shield according to claim 2 wherein the shaped sheet of material is of a structure capable of being affixed to the annulus of the valve with sutures.
Claim 8
Dependent Claim
16 words
A valve shield according to claim 2 wherein the shaped sheet of material comprises non-biological material.
Claim 9
Independent Claim
130 words
A method for reducing regurgitation in a cardiac valve having first and second leaflets and an annulus, the method comprising: providing a valve shield comprising a shaped sheet of material having a surface area and surface configuration substantially matching the entirety of the surface area and surface configuration of the first leaflet of the valve, and the shaped sheet of material having an edge configuration complementary to an edge configuration of the second leaflet of the valve; and affixing the valve shield to the annulus of the valve so that the shield substantially overlies the entirety of the first leaflet of the valve, to facilitate closing of the valve by edge to edge contact between the edge of the shaped sheet of material and the edge of the second leaflet.
Claim 10
Independent Claim
130 words
A method for reducing regurgitation in a cardiac valve having first and second leaflets and an annulus, the method comprising: providing a valve shield comprising a shaped sheet of material having a surface area and surface configuration substantially matching the entirety of the surface area and surface configuration of the first leaflet of the valve, and the shaped sheet of material having an edge configuration complementary to an edge configuration of the second leaflet of the valve; and affixing the valve shield to the annulus of the valve so that the shield substantially overlies the entirety of the first leaflet of the valve, to facilitate closing of the valve by edge to edge contact between the edge of the shaped sheet of material and the edge of the second leaflet.
Claim 11
Dependent Claim
36 words
A valve shield according to claim 1 wherein said shaped sheet of material is provided with an outer periphery at least in part shaped complimentarily to at least a portion of the annulus of the valve.
References Cited (Backward Citations)
US4042979A
Cited
US4489446A
Cited
US5061277B1
Cited
US5061277A
Cited
US4917698A
Cited
US5360444A
Cited
US5201880A
Cited
US5709695A
Cited
DE29618925U1
Cited
US6406420B1
Cited
WO1998032401A1
Cited
JPH11299814A
Cited
US6419695B1
Cited
US6702826B2
Cited
US6524338B1
Cited
WO2003053289A1
Cited
US20030120340A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-07-03 | 2010-01-02 | 2010-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-07-03 | 2014-01-02 | 2014-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-07-03 | 2018-01-02 | 2018-07-04 | $7700.00 | Window Closed / Lapsed |