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US 5,693,090 AGranted
Heart valve prosthesis
AssigneeCardio Carbon Company Ltd.
InventorsWilliam David Unsworth, Gianni Davide Angelini, Claudio Pistolesi
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AssigneeCardio Carbon Company Ltd.
InventorsWilliam David Unsworth, Gianni Davide Angelini, Claudio Pistolesi
Estimating the term…
The heart valve prosthesis comprises a substantially annular valve body having leaflets pivotally mounted to the valve body to be pivotable between respective open positions, in which blood is permitted to pass through the valve, and respective closed positions in which blood flow through the valve is substantially inhibited. The valve body is constructed of at least two part-annular elements and each respective leaflet is provided with at least two spaced pivot formations, each arranged to engage with a respective complementary pivot formation provided on a different part annular element. The annular body is assembled from the sub-elements and secured around the leaflets to provide a rigid annular body without the need for deformation or deflection of the annular body on assembly.
A heart valve prosthesis comprising a substantially annular valve body having pivot formations arranged to engage with complementary pivot formations provided on each of a respective pair of leaflets such that the leaflets are pivotally mounted to the valve body to be pivotable between respective open positions, in which blood is permitted to pass through the valve, and respective closed positions in which blood flow through the valve is substantially inhibited, wherein the valve body is constructed of at least two part-annular elements and each respective leaflet is provided with at least two spaced pivot formations, each arranged to engage with a respective complementary pivot formation provided on a different part of the at least two part-annular elements.
A method of manufacturing a prosthetic heart valve which method comprises assembling a plurality of sub-elements to form an annular valve body around a pair of leaflets such that pivot formations provided on respective leaflets engage with corresponding complementary pivot formations provided on different ones of said sub-elements and subsequently securing said sub-elements relative to one another to form an effectively unitary valve body around the leaflets.
Dependencies are inferred from the claim text.