BAR-LESS COMMISSURE ATTACHMENT FOR PROSTHETIC VALVE
First Claim
Patent Images
1. An implantable prosthetic valve, comprising:
- a radially collapsible and expandable annular frame; and
a leaflet structure positioned within the frame and comprising a plurality of leaflets each comprising two opposing side tabs, wherein each side tab is rolled into a spiral and each spiral is coupled to an adjacent spiral of an adjacent leaflet to form a plurality of annularly spaced commissures of the leaflet structure, and wherein each commissure is coupled the frame.
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Abstract
An implantable prosthetic valve, according to one embodiment, comprises a radially collapsible and expandable frame and a leaflet structure supported within the frame. The leaflet structure can comprise a plurality of leaflets paired together at commissures. In one embodiment, the commissures can comprise leaflet tabs rolled into spirals around non-rigid reinforcing inserts. In another embodiment, the commissures can comprise a reinforcing sheet folded around leaflet tabs.
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Citations
23 Claims
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1. An implantable prosthetic valve, comprising:
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a radially collapsible and expandable annular frame; and a leaflet structure positioned within the frame and comprising a plurality of leaflets each comprising two opposing side tabs, wherein each side tab is rolled into a spiral and each spiral is coupled to an adjacent spiral of an adjacent leaflet to form a plurality of annularly spaced commissures of the leaflet structure, and wherein each commissure is coupled the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable prosthetic valve, comprising:
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a radially collapsible and expandable annular frame; and a valve structure positioned within the frame and comprising a plurality of leaflets and a plurality of flexible reinforcing sheets, each leaflet comprising two opposing side tabs, each side tab being secured to an adjacent side tab of another leaflet and to one of the reinforcing sheets to form a plurality of annularly spaced reinforced commissures of the valve structure, each commissure being coupled to the frame; wherein each side tab comprises a medial portion and an end portion extending from the medial portion, the medial portion being in contact with the medial portion of the adjacent side tab, and the end portion being folded back away from the adjacent side tab and adjacent to the medial portion; and wherein each sheet comprises a middle portion extending circumferentially between the side tabs and the frame, first and second side portions extending radially inwardly from respective opposing ends of the middle portion of the sheet and around the end portions of the respective side tabs, and first and second end portions extending radially outwardly from radially inner ends of the first and second side portions of the sheet, respectively, each end portion of the sheet being sandwiched between the medial portion and the end portion of a respective side tab. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification