Two piece prosthetic heart valve
First Claim
Patent Images
1. A prosthetic heart valve for implantation in a heart, comprising:
- an outer orifice ring;
an attachment mechanism comprising at least one helical screw on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart;
an inner orifice ring having an occluding mechanism carried therein; and
a ring coupling mechanism adapted to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus.
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Abstract
A prosthetic heart valve for implantation in a heart includes an outer orifice ring for coupling to a tissue annulus of a heart. An inner orifice ring includes at least one leaflet occluder carried in a lumen of the inner orifice ring which is movable between an open position, which allows blood flow through the lumen, and a closed position which blocks blood flow through the lumen. The inner orifice ring is adapted to be coupled to the outer orifice ring after the outer orifice ring has been attached to the tissue annulus.
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Citations
30 Claims
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1. A prosthetic heart valve for implantation in a heart, comprising:
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an outer orifice ring;
an attachment mechanism comprising at least one helical screw on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart;
an inner orifice ring having an occluding mechanism carried therein; and
a ring coupling mechanism adapted to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A prosthetic heart valve for implantation in a heart, comprising:
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an outer orifice ring including a plurality of preformed holes formed therein and arranged around the ring to define suture locations, the holes extending in a direction which is generally perpendicular to an axis of the outer orifice ring;
an attachment mechanism comprising a suture on the outer orifice ring, the suture shaped to extend through the holes in the outer orifice ring and couple the outer orifice ring to a tissue annulus of the heart;
an inner orifice ring having an occluding mechanism carried therein; and
a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A prosthetic heart valve for implantation in a heart, comprising:
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an outer orifice ring including a plurality of preformed holes arranged around the ring to define suture or screw locations;
an attachment mechanism on the outer orifice ring adapted to couple the outer orifice ring to a tissue annulus of the heart;
an inner orifice ring having an occluding mechanism carried therein;
a ring coupling mechanism configured to couple the outer orifice ring to the inner orifice ring after the outer orifice ring has been coupled to the tissue annulus; and
wherein the ring coupling mechanism comprises a locking ridge formed on a circumference of one of the rings and a locking recess formed on a circumference of the other of the rings, wherein the locking ridge snap fits in the locking recess to thereby secure the two rings together, the locking recess configured to cover the attachment mechanism. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification