A cardiac-valve prosthesis, comprising: an armature (2), adapted for deployment between a contracted position and an expanded implantation position; and a set of leaflets (3) coupled with said armature (2) for deployment therewith between the contracted position and the expanded position, the set of leaflets (3) defining, in the expanded position, a flow duct for the blood, which is selectively obstructable by the set of prosthetic valve leaflets (30) as a result of the reversal of the direction of flow of said blood flow, wherein the armature (2) comprises: an external portion (5), adapted for deployment to enable the anchorage of the cardiac-valve prosthesis at the implantation site; and an internal portion (6), which supports said prosthetic valve leaflets (30); said external portion (5) and said internal portion (6) being substantially axially coextensive with respect to one another.
Giovanni Bergamasco, Gaetano Burriesci, Carla Stacchino (2005)Cardiac-valve prosthesis. . Brevetto No. EP1570809B1.
Cardiac-valve prosthesis
Gaetano Burriesci;
2005-09-07
Abstract
A cardiac-valve prosthesis, comprising: an armature (2), adapted for deployment between a contracted position and an expanded implantation position; and a set of leaflets (3) coupled with said armature (2) for deployment therewith between the contracted position and the expanded position, the set of leaflets (3) defining, in the expanded position, a flow duct for the blood, which is selectively obstructable by the set of prosthetic valve leaflets (30) as a result of the reversal of the direction of flow of said blood flow, wherein the armature (2) comprises: an external portion (5), adapted for deployment to enable the anchorage of the cardiac-valve prosthesis at the implantation site; and an internal portion (6), which supports said prosthetic valve leaflets (30); said external portion (5) and said internal portion (6) being substantially axially coextensive with respect to one another.File | Dimensione | Formato | |
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