Methods and systems for delivering prostheses using rail techniques
First Claim
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1. A prosthesis, comprising:
- a) a graft material sleeve; and
b) a plurality of individual, physically separated, independently articulable, independent loops of shape memory wire material coupled to the graft material sleeve at a mid portion of each separate, independent loop such that the mid portions of the loops are spaced from and not directly attached to each other to enhance compliance of the prosthesis when installed in a native valve annulus, wherein;
the mid portion of each said separate, independent loop includes two substantially straight segments of the shape memory wire material;
each said separate, independent loop further includes a proximal portion including a first curved segment of the shape memory wire material connecting proximal ends of the two substantially straight wire segments of the mid portion; and
each said separate, independent loop includes a distal portion including a second curved segment of the shape memory wire material connecting distal ends of the two substantially straight wire segments of the mid portion, wherein the plurality of individual independently articulable loops are configured and arranged to be deployed in a lumenal system of a patient.
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Abstract
Exemplary embodiments provide methods and systems for delivering a prosthesis to a target location in a lumenal system of a patient. At least one tether is secured proximate the target location to serve as a rail, and a prosthesis is advanced along the rail to the target location and secured in place. Exemplary methods and systems provide for repair of the mitral and tricuspid valves, as well as abdominal aortic aneurysms, stomach valves, fallopian tubes and the pulmonary system, among others. Also disclosed are various prostheses suitable for use with the disclosed methods and systems.
146 Citations
10 Claims
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1. A prosthesis, comprising:
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a) a graft material sleeve; and b) a plurality of individual, physically separated, independently articulable, independent loops of shape memory wire material coupled to the graft material sleeve at a mid portion of each separate, independent loop such that the mid portions of the loops are spaced from and not directly attached to each other to enhance compliance of the prosthesis when installed in a native valve annulus, wherein; the mid portion of each said separate, independent loop includes two substantially straight segments of the shape memory wire material; each said separate, independent loop further includes a proximal portion including a first curved segment of the shape memory wire material connecting proximal ends of the two substantially straight wire segments of the mid portion; and each said separate, independent loop includes a distal portion including a second curved segment of the shape memory wire material connecting distal ends of the two substantially straight wire segments of the mid portion, wherein the plurality of individual independently articulable loops are configured and arranged to be deployed in a lumenal system of a patient. - View Dependent Claims (2, 3, 4, 5)
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6. A valve prosthesis, comprising:
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a graft material; a plurality of individual, separated, parallel, independently articulable, primary, loops of shape memory wire material that are spaced from and not directly attached to each other, and are coupled to the graft material at a mid portion of each separate primary loop to enhance compliance of the prosthesis when installed in a native valve annulus, each of said separate, primary loops having a curved proximal end and a curved distal end, wherein; the proximal ends of each of the separate, primary loops are independently articulable and configured to act as a first set of fasteners that extend radially and outwardly with respect to the graft material and the mid portion and are configured to attach the valve prosthesis to cardiac tissue on an atrial side of a posterior mitral annulus. - View Dependent Claims (7, 8, 9, 10)
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Specification