SYSTEMS AND METHODS FOR POSITIONING A HEART VALVE USING VISUAL MARKERS
First Claim
1. An assembly for delivering an implantable prosthesis to a target site in a body, the assembly comprising:
- an elongate delivery member; and
a valve retainer connected to the elongate delivery member, wherein the valve retainer has an outer surface, wherein the valve retainer is configured to releasably secure a prosthesis to the elongate delivery member during delivery to a target site in a body, andwherein the valve retainer includes a rotational identifier that identifies the rotational orientation of the valve retainer when the valve retainer is positioned proximate to the target site in the body.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve retainer is connected to an elongate delivery member. The valve retainer is configured to releasably secure a prosthesis (e.g., a heart valve prosthesis) to the delivery member during delivery to a target site in a body (e.g., a native valve annulus). The valve retainer includes a rotational identifier that identifies the rotational orientation of the valve retainer when the valve retainer is positioned proximate to the target site. A heart valve prosthesis can include a commissural post that has a predetermined rotational position relative to the rotational identifier, such that the heart valve prosthesis can be rotationally aligned with the native commissures of the native valve by rotating the delivery member and the valve retainer until the commissural post is aligned with a native valve commissure and the rotational identifier is visible.
92 Citations
23 Claims
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1. An assembly for delivering an implantable prosthesis to a target site in a body, the assembly comprising:
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an elongate delivery member; and a valve retainer connected to the elongate delivery member, wherein the valve retainer has an outer surface, wherein the valve retainer is configured to releasably secure a prosthesis to the elongate delivery member during delivery to a target site in a body, and wherein the valve retainer includes a rotational identifier that identifies the rotational orientation of the valve retainer when the valve retainer is positioned proximate to the target site in the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for implanting a heart valve prosthesis in a body, the method comprising:
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advancing a delivery system to a native valve annulus in a body, wherein the delivery system includes an elongate delivery member having a distal end and proximal end, a valve retainer connected to the elongate delivery member, wherein the valve retainer has an outer surface, wherein the valve retainer is configured to releasably secure a prosthesis to the elongate delivery member during delivery to a target site in a body, wherein the valve retainer includes a rotational identifier that identifies the rotational orientation of the valve retainer when the valve retainer is positioned proximate to a target site in a body, and a heart valve prosthesis releasably secured to the valve retainer, wherein the heart valve prosthesis includes a commissural post; generating a fluoroscopic image of the heart valve prosthesis and native valve commissures; and rotationally aligning the heart valve prosthesis by rotating the elongate deliver member and the valve retainer until the commissural post is aligned with a native valve commissure and the rotational identifier is visible on a predetermined side of the valve retainer such that the rotational position of the commissural post with respect to the rotational identifier is known. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus comprising:
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a valve prosthesis comprising; a prosthetic heart valve, a support structure, wherein the support structure includes a first material having a first radiopacity, and one or more radiographic identifiers, wherein the radiographic identifiers include a second material having a second radiopacity different front the first radiopacity, an elongate delivery member; and a valve retainer connected to the elongate delivery member, wherein the valve retainer has an outer surface, wherein the valve retainer is configured to releasably secure the heart valve prosthesis to the elongate delivery member during delivery to a target site in a body, wherein the valve retainer includes a rotational identifier that identifies the rotational orientation of the valve retainer when the valve retainer is positioned proximate to the target site in the body. - View Dependent Claims (21, 22, 23)
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Specification