Devices and methods for closure of transvascular or transcameral access ports
AssigneesTransmural Systems LLC, The United States of America, as represented by the Secretary, Department of Health and Human Services
InventorsNasser Rafiee, Stuart MacDonald, Robert J. Lederman, Toby Rogers, Rany Busold, Koosha Rafiee
Life of this patent
Estimating the term…
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.
Claims30
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 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 configured and arranged to facilitate confirmation of a location of a hole in a lumenal wall in which the prosthesis is positioned by helping to seat the prosthesis in the hole when the prosthesis is attached to a delivery catheter, and to provide resistance to help prevent the prosthesis from being pulled through the hole.
An axially telescoping prosthesis comprising:
- a) a plurality of discrete radially expandable braided mesh bodies, 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, the plurality of mesh bodies being axially displaceable with respect to one another;
- and
- b) a resilient member structurally distinct from the plurality of discrete mesh bodies and passing through a central region of the mesh bodies configured and arranged to connect the plurality of discrete radially expandable braided mesh bodies to each other, wherein:
- (i) the radially expandable braided mesh bodies are selectively telescopically displaceable from one another along a central longitudinal axis of the prosthesis by stretching or relaxing the resilient member to accommodate differently sized anatomies, (ii) the resilient member is substantially co-axial with the central longitudinal axis of the prosthesis, and (iii) the resilient member is configured to cause the prosthesis to shorten along the axis and expand radially when the resilient member is relaxed.
A prosthesis comprising:
- 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 connecting the plurality of radially expandable braided mesh bodies, the radially expandable braided mesh bodies being spaced from one another along a central longitudinal axis of the prosthesis, the resilient member being substantially co-axial with the central longitudinal axis of the prosthesis, and the resilient member being configured to cause the prosthesis to shorten along the axis and for the plurality of radially expandable braided mesh bodies to expand radially 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.
A prosthesis comprising:
- a) a radially expandable mesh body that is configured to self-expand into a plurality of discs after becoming radially unconstrained, the radially expandable mesh body defining a volume therein when expanded;
- and
- b) at least one tether directed through a distal disc of said plurality of discs configured to cause the plurality of discs to collapse together axially when tension is applied to the at least one tether.
Dependencies are inferred from the claim text.