US6936067B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic heart valve with slit stent
Assignee: St Jude Medical LLC
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Filing: 2001-05-17
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Granted: 2005-08-30
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Expires: 2021-05-17
Abstract
Abstract A valve prosthesis includes a plurality of flexible leaflets and a stent having a central lumen. A slit in the stent extends from the central lumen to an outer surface. An occluding portion of the flexible leaflets extends across the central lumen and an attachment portion extends from the central lumen through the slit and forms a sewing cuff for attachment to a patient's tissue. The attachment portion forms a sewing cuff for attachment to native heart tissue.
Inventors
- 👤 Eric S. Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:55
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2409
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
102 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion, the attachment portion having a rolled rim positioned entirely outside the outer surface of the stent.
Claim 2
Dependent Claim
102 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion, the attachment portion having a rolled rim positioned entirely outside the outer surface of the stent.
Claim 3
Dependent Claim
15 words
The valve prosthesis of claim 1 wherein the plurality of flexible leaflets comprises three leaflets.
Claim 4
Dependent Claim
12 words
The valve prosthesis of claim 1 wherein the flexible leaflets comprise tissue.
Claim 5
Dependent Claim
13 words
The valve prosthesis of claim 1 wherein the flexible leaflets comprise crosslinked tissue.
Claim 6
Dependent Claim
13 words
The valve prosthesis of claim 1 wherein the flexible leaflets comprise a polymer.
Claim 7
Dependent Claim
12 words
The valve prosthesis of claim 1 wherein the stent comprises a polyacetal.
Claim 8
Dependent Claim
12 words
The valve prosthesis of claim 1 wherein the stent comprises a polymer.
Claim 9
Dependent Claim
15 words
The valve prosthesis of claim 1 wherein the stent comprises a metal or metal alloy.
Claim 10
Dependent Claim
18 words
The valve prosthesis of claim 1 wherein the stent has a plurality of commissure posts connected by scallops.
Claim 11
Dependent Claim
28 words
The valve prosthesis of claim 9 wherein the slit extends along one of the scallops at least about 95 percent of the distance between two adjacent commissure posts.
Claim 12
Dependent Claim
23 words
The valve prosthesis of claim 1 further comprising a sewing cuff around at least a portion of the circumference of the valve prosthesis.
Claim 13
Dependent Claim
27 words
The valve prosthesis of claim 1 wherein the attachment portion of the leaflet is folded on itself and secured to itself to thereby form a suture cuff.
Claim 14
Dependent Claim
24 words
The valve prosthesis of claim 1 wherein the attachment portion of the leaflet is wound around a core to thereby form a suture cuff.
Claim 15
Dependent Claim
12 words
The valve prosthesis of claim 13 wherein the core comprises a polymer.
Claim 16
Dependent Claim
11 words
The valve prosthesis of claim 13 wherein the core comprises fabric.
Claim 17
Dependent Claim
11 words
The valve prosthesis of claim 13 wherein the core comprises silicone.
Claim 18
Dependent Claim
34 words
The valve prosthesis of claim 1 wherein the attachment portion of the leaflet is configured to attach to a tissue annulus of the heart and distribute stress during valve operation to the aortic wall.
Claim 19
Dependent Claim
16 words
The valve prosthesis of claim 1 wherein the stent provides support to the leaflets during implantation.
Claim 20
Dependent Claim
72 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, at least one flexible leaflet slidably extending through the silt to position a rolled rim of an attachment portion of the flexible leaflet outside the outer surface of the stent and a valve portion of the leaflet in the central lumen.
Claim 21
Dependent Claim
72 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, at least one flexible leaflet slidably extending through the silt to position a rolled rim of an attachment portion of the flexible leaflet outside the outer surface of the stent and a valve portion of the leaflet in the central lumen.
Claim 22
Dependent Claim
109 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets extends from the central lumen through the slit proximate to the outer surface, wherein the attachment portion of the leaflet extending through the slit on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 23
Dependent Claim
109 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets extends from the central lumen through the slit proximate to the outer surface, wherein the attachment portion of the leaflet extending through the slit on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 24
Dependent Claim
99 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a ventral lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets extends from the central lumen through the slit proximate to the outer surface, wherein the attachment portion of the leaflet extending through the slit is wound around a core to thereby form a suture cuff.
Claim 25
Dependent Claim
99 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a ventral lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets extends from the central lumen through the slit proximate to the outer surface, wherein the attachment portion of the leaflet extending through the slit is wound around a core to thereby form a suture cuff.
Claim 26
Dependent Claim
12 words
The valve prosthesis of claim 21 wherein the core comprises a polymer.
Claim 27
Dependent Claim
11 words
The valve prosthesis of claim 21 wherein the core comprises fabric.
Claim 28
Dependent Claim
11 words
The valve prosthesis of claim 21 wherein the core comprises silicone.
Claim 29
Dependent Claim
109 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, wherein the attachment portion of the leaflet extending through the silt on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 30
Dependent Claim
109 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, wherein the attachment portion of the leaflet extending through the silt on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 31
Dependent Claim
99 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, wherein the attachment portion of the leaflet extending through the slit is wound around a core to thereby form a suture cuff.
Claim 32
Dependent Claim
99 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and an attachment portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, wherein the attachment portion of the leaflet extending through the slit is wound around a core to thereby form a suture cuff.
Claim 33
Dependent Claim
12 words
The valve prosthesis of claim 26 wherein the core comprises a polymer.
Claim 34
Dependent Claim
11 words
The valve prosthesis of claim 26 wherein the core comprises fabric.
Claim 35
Dependent Claim
11 words
The valve prosthesis of claim 26 wherein the core comprises silicone.
Claim 36
Dependent Claim
25 words
The valve prosthesis of claim 26 wherein the flexible leaflets comprise a material selected from the group consisting of tissue, crosslinked tissue, and polymeric materials.
Claim 37
Dependent Claim
20 words
The valve prosthesis of claim 26 wherein the stent comprises a polymer, a polyacetal, a metal or a metal alloy.
Claim 38
Dependent Claim
138 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion positioned outside the outer surface, wherein the attachment portion of the flexible leaflet is movable relative to the stent, and wherein the attachment portion of the leaflet extending through the slit on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 39
Dependent Claim
138 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the slit from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion positioned outside the outer surface, wherein the attachment portion of the flexible leaflet is movable relative to the stent, and wherein the attachment portion of the leaflet extending through the slit on the outer portion of the stent is folded on itself and secured to itself to thereby form a suture cuff.
Claim 40
Dependent Claim
127 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the silt from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion positioned outside the outer surface, wherein the attachment portion of the flexible leaflet is movable relative to the stent, and wherein the attachment portion of the leaflet extending through the-silt is wound around a core to thereby form a suture cuff.
Claim 41
Dependent Claim
127 words
A valve prosthesis comprising a plurality of flexible leaflets and a stent having a central lumen, an outer surface and a slit extending from the central lumen to the outer surface, an occluding portion of the flexible leaflets extending across the central lumen, wherein the flexible leaflets are supported by the stent and a portion of at least one of the flexible leaflets slidably extends through the silt from the central lumen to the outer surface, the at least one flexible leaflet having an attachment portion positioned outside the outer surface, wherein the attachment portion of the flexible leaflet is movable relative to the stent, and wherein the attachment portion of the leaflet extending through the-silt is wound around a core to thereby form a suture cuff.
Claim 42
Dependent Claim
12 words
The valve prosthesis of claim 33 wherein the core comprises a polymer.
Claim 43
Dependent Claim
11 words
The valve prosthesis of claim 33 wherein the core comprises fabric.
Claim 44
Dependent Claim
11 words
The valve prosthesis of claim 33 wherein the core comprises silicone.
Claim 45
Dependent Claim
25 words
The valve prosthesis of claim 33 wherein the flexible leaflets comprise a material selected from the group consisting of tissue, crosslinked tissue, and polymeric materials.
Claim 46
Dependent Claim
20 words
The valve prosthesis of claim 33 wherein the stent comprises a polymer, a polyacetal, a metal or a metal alloy.
Claim 47
Dependent Claim
77 words
A valve prosthesis comprising: a stent having a central lumen and an outer surface; leaflet means slidably extending through the stent from the central lumen to the outer surface for blocking blood flow in one direction through the stent; and attachment means formed from the leaflet means for attaching the leaflet means to a native tissue annulus of a heart, wherein the attachment means comprises a rolled rim located entirely outside the outer surface of the stent.
Claim 48
Dependent Claim
77 words
A valve prosthesis comprising: a stent having a central lumen and an outer surface; leaflet means slidably extending through the stent from the central lumen to the outer surface for blocking blood flow in one direction through the stent; and attachment means formed from the leaflet means for attaching the leaflet means to a native tissue annulus of a heart, wherein the attachment means comprises a rolled rim located entirely outside the outer surface of the stent.
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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) | 2008-08-29 | 2009-02-28 | 2009-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-08-29 | 2013-02-28 | 2013-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-08-29 | 2017-02-28 | 2017-08-30 | $7700.00 | Window Closed / Lapsed |