Direct suture orifice for mechanical heart valve
First Claim
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1. A prosthetic heart valve for implantation in a heart, comprising:
- an orifice body having an outer circumference and defining a lumen therethrough;
at least one occluder carried in the lumen of the orifice body and movable between an open position allowing flow through the lumen and a closed position blocking flow therethrough;
an orifice flange having a plurality of suture holes defined therein, the orifice flange extending around and generally conforming to the outer circumference of the orifice body, the plurality of suture holes adapted for receiving a suture therethrough;
a separate flange ring shaped to generally conform to the outer circumference of the orifice body and having a plurality of suture holes defined therein adapted for receiving the suture for attaching the heart valve to tissue of the heart and urging the orifice flange and the flange ring together such that a tissue annulus of the heart can be securely held between the orifice flange and the flange ring to reduce blood leakage therepast; and
a gasket adjacent one of either the orifice flange or the flange ring for forming a tissue seal between the one flange ring and the tissue annulus to reduce blood leakage.
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Abstract
A mechanical heart valve for implantation in a heart of a patient includes an orifice body having an outer circumference and defining a lumen for blood flow therethrough. At least one leaflet carried in the lumen of the orifice body is movable between an open position, allowing flow through the lumen, and a closed position blocking flow through the lumen. A flange ring around the outer circumference of the orifice body includes a plurality of suture holes defined therein. The suture holes are adapted for receiving a suture and thereby attaching the heart valve to tissue of the heart.
360 Citations
18 Claims
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1. A prosthetic heart valve for implantation in a heart, comprising:
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an orifice body having an outer circumference and defining a lumen therethrough; at least one occluder carried in the lumen of the orifice body and movable between an open position allowing flow through the lumen and a closed position blocking flow therethrough; an orifice flange having a plurality of suture holes defined therein, the orifice flange extending around and generally conforming to the outer circumference of the orifice body, the plurality of suture holes adapted for receiving a suture therethrough; a separate flange ring shaped to generally conform to the outer circumference of the orifice body and having a plurality of suture holes defined therein adapted for receiving the suture for attaching the heart valve to tissue of the heart and urging the orifice flange and the flange ring together such that a tissue annulus of the heart can be securely held between the orifice flange and the flange ring to reduce blood leakage therepast; and a gasket adjacent one of either the orifice flange or the flange ring for forming a tissue seal between the one flange ring and the tissue annulus to reduce blood leakage. - 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 orifice body having an outer circumference and defining a lumen therethrough, the orifice body including a rim; at least one occluder carried in the lumen of the orifice body and movable between an open position allowing flow through the lumen and a closed position blocking flow therethrough; a first flange ring having a plurality of suture holes defined therein, the first flange ring extending around and generally conforming to the outer circumference of the orifice body, the plurality of suture holes adapted for receiving a suture therethrough; and a second flange ring shaped to generally conform to the outer circumference of the orifice body and having a plurality of suture holes defined therein adapted for receiving the suture for attaching the heart valve to tissue of the heart and urging the first ring and the second flange ring together such that a tissue annulus of the heart can be securely held between the first flange ring and the second flange ring to reduce blood leakage therepast; wherein the rim separates the first flange ring and the second flange ring such that at least one of the flange rings abuts the rim. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification