Prosthetic heart valve with slit stent
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
39 Claims
- 1. 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.
-
19. 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.
-
20. 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.
- 21. 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.
-
25. 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.
- 26. 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.
-
32. 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.
- 33. 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.
-
39. 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.
-
Specification