Devices and methods for closure of transvascular or transcameral access ports
First Claim
1. A prosthesis having a proximal end and a distal end, the prosthesis having a radially expandable body, the radially expandable body being configured to expand into at least one distal disc after becoming unconstrained, the at least one distal disc including a radially outwardly extending paddle attached to the at least one distal disc, the paddle being configured to assume a radial orientation as the at least one distal disc expands outwardly radially, the paddle being configured to extend radially outwardly beyond an outer circumferential perimeter of the at least one disc, the paddle being defined by a framework that is structurally distinct from and attached to the structure of the at least one distal disc, said framework extending from a radially inboard location of the at least one distal disc to a radial outward tip, a radially inboard portion of the paddle being configured and arranged to reside near an edge of an opening in a lumenal wall when the prosthesis is deployed in order to facilitate confirmation of the location of the opening in the lumenal wall in which the prosthesis is positioned, said paddle being configured and arranged to help to seat the prosthesis in the opening when the prosthesis is attached to a delivery catheter, and to provide resistance to help prevent the prosthesis from being pulled through the opening.
4 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure provides a variety of prostheses, delivery systems and techniques to facilitate closure of transvascular or transcameral access ports. Various embodiments of prostheses are provided including a plurality of radially expandable discs that can be filled with material to facilitate coagulation and to reduce or stop leakage from punctures in vessel walls.
157 Citations
25 Claims
- 1. A prosthesis having a proximal end and a distal end, the prosthesis having a radially expandable body, the radially expandable body being configured to expand into at least one distal disc after becoming unconstrained, the at least one distal disc including a radially outwardly extending paddle attached to the at least one distal disc, the paddle being configured to assume a radial orientation as the at least one distal disc expands outwardly radially, the paddle being configured to extend radially outwardly beyond an outer circumferential perimeter of the at least one disc, the paddle being defined by a framework that is structurally distinct from and attached to the structure of the at least one distal disc, said framework extending from a radially inboard location of the at least one distal disc to a radial outward tip, a radially inboard portion of the paddle being configured and arranged to reside near an edge of an opening in a lumenal wall when the prosthesis is deployed in order to facilitate confirmation of the location of the opening in the lumenal wall in which the prosthesis is positioned, said paddle being configured and arranged to help to seat the prosthesis in the opening when the prosthesis is attached to a delivery catheter, and to provide resistance to help prevent the prosthesis from being pulled through the opening.
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13. A prosthesis comprising:
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a) a plurality of radially expandable braided mesh bodies connected by mesh material, each of said bodies being formed from a plurality of filaments that can slide across one another, each of the braided mesh bodies being configured to self-expand into at least one disc, each radially expandable braided mesh body defining a volume therein; b) a resilient member structurally distinct from the mesh material, a proximal portion of said resilient member being connected to a proximal portion of a proximal radially expandable braided mesh body of the plurality of radially expandable braided mesh bodies, a distal portion of said resilient member being connected to a distal portion of a distal radially expandable braided mesh body of the plurality of radially expandable braided mesh bodies, the proximal and distal radially expandable braided mesh bodies being spaced from one another along a central longitudinal axis of the prosthesis, the resilient member being configured to cause the prosthesis to shorten along the axis to cause the plurality of radially expandable braided mesh bodies to expand radially outwardly when the resilient member is relaxed; and c) an outer fabric covering connecting the plurality of radially expandable braided mesh bodies, the outer fabric being disposed outside of the braiding of the plurality of radially expandable braided mesh bodies. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A prosthesis comprising:
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a) a plurality of radially expandable braided mesh bodies that are configured to self-expand into a plurality of discs after becoming radially unconstrained, said plurality of radially expandable mesh bodies defining at least one volume therein when expanded and further defining an open channel along a central axis of the prosthesis through the plurality of radially expandable mesh bodies to permit a guidewire passing through the open channel to pass through a distal face of the prosthesis; and b) a tension coil spring attached to a proximal portion of a proximal one of said discs, and to a distal portion of a distal one of said discs, the tension coil spring being configured to cause the prosthesis to shorten along the central axis and for the plurality of radially expandable braided mesh bodies to expand radially when the tension coil spring is relaxed, the tension coil spring having at least one section with a diameter that is larger than proximal and distal central openings defined at a proximal end of a proximal disc and a distal end of the distal disc, respectively, to prevent the coil spring from extending outwardly through the central openings of the prosthesis. - View Dependent Claims (21, 22, 23, 24)
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25. A system for delivering a prosthesis, comprising:
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a) a prosthesis, including a plurality of radially expandable braided mesh bodies that are configured to self-expand into a plurality of discs after becoming radially unconstrained, each radially expandable mesh body defining a volume therein when expanded, and a tension coil spring connected to a proximal portion of a proximal one of said discs, and connected to a distal portion of a distal one of said discs, the tension coil spring being configured to pull axially inwardly on said proximal portion and said distal portion to cause said prosthesis to shorten along a central axis and for the plurality of radially expandable braided mesh bodies to expand radially when the tension coil spring is relaxed; and b) a delivery system for delivering the prosthesis, comprising; i) an outer tubular member having a proximal end and a distal end and defining a first lumen therethrough along at least a portion of its length; and ii) an inner elongate member being disposed at least partially within the first lumen, the inner elongate member being slidably disposed with respect to the outer tubular member, the inner elongate member having a proximal end and a distal end configured to be displaced distally beyond the distal end of the outer tubular member, wherein the inner elongate member is a tubular member configured to permit a guidewire to pass therethrough, and further wherein a distal end of the inner elongate member is configured to abut against a distal portion of the prosthesis to form a guidewire lumen to permit the guidewire passing through the inner elongate member to pass through a distal face of the prosthesis, wherein the prosthesis can be longitudinally stretched by advancing the inner elongate member distally with respect to the outer tubular member and against the distal portion of the prosthesis, and further wherein said longitudinal stretch of said prosthesis causes the prosthesis to collapse radially inwardly to permit said prosthesis to be withdrawn into said distal end of said outer tubular member.
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Specification