Prosthetic heart valve and method
First Claim
1. A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter, comprising:
- a collapsible and expandable frame having an inlet end and an outlet end;
three pericardial leaflets forming a tricuspid valve wherein the tricuspid valve includes a top portion, a middle portion, and a bottom portion; and
three equidistantly spaced support members positioned proximate to the outlet end of the frame along an internal surface of the frame, each support member having a plurality of circular bores extending therethrough;
wherein the three support members are positioned at least along the top portion of the tricuspid valve such that the top portion of the tricuspid valve is secured to the three support members by sutures extending through the bores and the bottom portion of the tricuspid valve is secured with sutures to the inlet end of the frame along a circumference of the tricuspid valve; and
wherein a pair of longitudinal surfaces of each support member extends radially inward such that end portions of adjacent valve leaflets along the top portion of the tricuspid valve extend between the pairs of the radially extended longitudinal surfaces of each support member.
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Accused Products
Abstract
A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter. The prosthetic heart valve assembly includes a collapsible and expandable tubular frame having an inlet end and an outlet end. The frame is preferably made from a self-expanding material. Three pericardial leaflets form a tricuspid valve having a top portion, a middle portion, and a bottom portion. Three longitudinal support members are positioned along an internal surface of the frame, desirably proximate to the outlet end. Each support member includes a pair of longitudinal surfaces that extends radially inwardly. End portions of adjacent valve leaflets extend through a gap between the pairs of longitudinal surfaces of each support member. The end portions are sutured to the longitudinal support members. The bottom portion of the tricuspid valve is sutured to the inlet end of the frame.
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Citations
35 Claims
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1. A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter, comprising:
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a collapsible and expandable frame having an inlet end and an outlet end; three pericardial leaflets forming a tricuspid valve wherein the tricuspid valve includes a top portion, a middle portion, and a bottom portion; and three equidistantly spaced support members positioned proximate to the outlet end of the frame along an internal surface of the frame, each support member having a plurality of circular bores extending therethrough; wherein the three support members are positioned at least along the top portion of the tricuspid valve such that the top portion of the tricuspid valve is secured to the three support members by sutures extending through the bores and the bottom portion of the tricuspid valve is secured with sutures to the inlet end of the frame along a circumference of the tricuspid valve; and wherein a pair of longitudinal surfaces of each support member extends radially inward such that end portions of adjacent valve leaflets along the top portion of the tricuspid valve extend between the pairs of the radially extended longitudinal surfaces of each support member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter, comprising:
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a collapsible and expandable annular frame having an inlet end and an outlet end; three pericardial leaflets forming a tricuspid valve wherein the tricuspid valve includes a top portion, a middle portion, and a bottom portion; and three equidistantly spaced support members positioned proximate to the outlet end of the frame along an internal surface of the annular frame, each support member having at least a lower portion mounted inside of the annular frame; wherein the three support members are positioned at least along the top portion of the tricuspid valve such that the top portion of the tricuspid valve is secured with sutures to the three support members, the middle portion of the tricuspid valve includes a slack portion, and the bottom portion of the tricuspid valve is secured with sutures to the inlet end of the frame along the circumference of the tricuspid valve; and wherein a pair of longitudinal surfaces of each support member extends radially inward such that end portions of adjacent valve leaflets along the top portion of the tricuspid valve extend between the pairs of the radially extended longitudinal surfaces of each support member. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter, comprising:
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a collapsible and expandable annular frame having an inlet end, an outlet end; three longitudinal support members mounted to an inside surface of the frame, each longitudinal support member positioned proximate to the outlet end of the frame, each longitudinal support member provided with a pair of corresponding projections that extend radially inward relative to the inside surface of the frame, wherein each projection comprises a plurality of bores; and a valve assembly including three leaflets made of pericardial tissue; wherein end portions of adjacent leaflets extend between the pairs of corresponding projections and wherein the leaflets are secured to the longitudinal support members by sutures extending through the leaflets and through the bores of each projection and wherein a bottom portion of the valve assembly is stitched to the inlet end of the annular frame along a circumference of the valve assembly. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A prosthetic heart valve assembly suitable for implantation in body ducts via a catheter, comprising:
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a collapsible and expandable annular support frame adapted to be initially crimped in a narrow configuration for catheterization through a body duct to a target location, the support frame made from a nickel-titanium, shape memory alloy; a valve assembly comprising a flexible conduit, the valve assembly made of pliant material forming a tricuspid valve assembly having three leaflets; and three pairs of parallel bars for attaching the valve assembly to the support frame, each bar of each pair of parallel bars including preformed bores extending therethrough; wherein each pair of parallel bars is connected to a respective connecting member; wherein end portions of the leaflets extend between the pairs of parallel bars and sutures extend through the end portions of the leaflets and through the preformed bores for attaching the leaflets to the parallel bars. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification