Suture deployment of prosthetic heart valve
First Claim
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1. A medical device delivery assembly, comprising:
- an annular stent having a first plurality of apices spaced circumferentially around a first end portion of the stent, a second plurality of apices spaced circumferentially around a second end portion of the stent, and an intermediate portion disposed between the first and the second end portions, wherein the stent is configured to radially expand and axially foreshorten from a first state to a second state and to radially compress and axially elongate from the second state to the first state;
an elongate shaft disposed radially within and extending axially through the stent and having a first manifold coupled to the shaft distal to the first end of the stent, wherein the first manifold has a first plurality of openings;
a second manifold located proximal to the first manifold of the shaft, wherein the second manifold has a second plurality of openings;
a first plurality of sutures extending through at least some of the second openings of the second manifold, through the first openings of the first manifold, and through or around the first plurality of apices of the stent, wherein the first plurality of sutures is releasably coupled to the stent and configured such that increasing tension of the first plurality of sutures causes the first plurality of apices of the stent to radially converge; and
a second plurality of sutures extending through at least some second openings of the second manifold and through or around the second plurality of apices of the stent, wherein the second plurality of sutures is releasably coupled to the stent and configured such that increasing tension of the second plurality of sutures causes the second plurality of apices of the stent to radially converge,wherein the intermediate portion of the stent can radially expand and axially foreshorten when the first and the second pluralities of apices radially converge.
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Abstract
A delivery apparatus for a prosthetic implant can include an elongate first shaft, a first suture guide coupled to the first shaft, an elongate second shaft, and a second suture guide coupled to the second shaft. The first shaft can extend coaxially through the second shaft and the second suture guide, the first suture guide can be disposed distal to the second suture guide, and the first suture guide and the second suture guide can be configured to be axially movable relative to each other.
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Citations
21 Claims
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1. A medical device delivery assembly, comprising:
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an annular stent having a first plurality of apices spaced circumferentially around a first end portion of the stent, a second plurality of apices spaced circumferentially around a second end portion of the stent, and an intermediate portion disposed between the first and the second end portions, wherein the stent is configured to radially expand and axially foreshorten from a first state to a second state and to radially compress and axially elongate from the second state to the first state; an elongate shaft disposed radially within and extending axially through the stent and having a first manifold coupled to the shaft distal to the first end of the stent, wherein the first manifold has a first plurality of openings; a second manifold located proximal to the first manifold of the shaft, wherein the second manifold has a second plurality of openings; a first plurality of sutures extending through at least some of the second openings of the second manifold, through the first openings of the first manifold, and through or around the first plurality of apices of the stent, wherein the first plurality of sutures is releasably coupled to the stent and configured such that increasing tension of the first plurality of sutures causes the first plurality of apices of the stent to radially converge; and a second plurality of sutures extending through at least some second openings of the second manifold and through or around the second plurality of apices of the stent, wherein the second plurality of sutures is releasably coupled to the stent and configured such that increasing tension of the second plurality of sutures causes the second plurality of apices of the stent to radially converge, wherein the intermediate portion of the stent can radially expand and axially foreshorten when the first and the second pluralities of apices radially converge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A delivery apparatus for a prosthetic implant comprising:
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a sheath; an elongate first shaft; a first suture guide coupled to the first shaft; an elongate second shaft; and a second suture guide coupled to the second shaft, wherein the first shaft extends coaxially through the second shaft and the second suture guide, and the first suture guide is disposed distal to the second suture guide, wherein the first suture guide and the second suture guide are configured to be axially movable relative to each other, wherein the first and the second suture guides are disposed radially within the sheath when delivering the prosthetic implant to an implantation location, and wherein the first and the second suture guides are exposed from the sheath when implanting the prosthetic implant at the implantation location. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification