Branched vessel prosthesis
First Claim
Patent Images
1. A branched vessel prosthesis comprising:
- two primary hoop members spaced apart by a longitudinal distance and at least one primary longitudinal strut coupling the two primary hoop members to define a primary lumen through the primary hoop members about a longitudinal axis, each of the primary hoop members being movable between a radially compressed configuration having a first diameter and a radially expanded configuration having a second diameter such that the primary lumen has a radially compressed inner diameter and a radially expanded inner diameter, anda branch hoop member and at least one flexible member coupling the branch hoop member with at least one of the primary hoop members, the branch hoop member having an axial length that is less than the radially compressed inner diameter of the primary lumen, and a diameter that is less than the longitudinal distance between the primary hoop members, the branch hoop member being movable between a first position and a second position, where in the first position the at least one flexible member being bowed inward such that, the entire branch hoop member is disposed within the primary lumen and between the primary hoop members when each of the primary hoop members is in the radially compressed configuration, where in the second position the branch hoop member is disposed outside the primary lumen when the primary hoop members are in the radially expanded configuration, the branch hoop member in the second position defining a branch lumen about a branch axis in communication with the primary lumen.
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Abstract
The present disclosure describes an implantable branched vessel prosthesis, such as a prosthetic valve, having both a radially expandable annular portion and a laterally extendable branch portion. Methods of delivering the branched vessel prosthesis to a branched body vessel are also provided, as well as delivery systems comprising the branched vessel prosthesis. The branched vessel prostheses are useful, for example, as implantable prosthetic venous valves for treating venous valve insufficiency. The delivery system is configured to deploy independently both the annular portion within a primary vessel and the branch portion within a branch vessel with only one delivery system.
110 Citations
16 Claims
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1. A branched vessel prosthesis comprising:
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two primary hoop members spaced apart by a longitudinal distance and at least one primary longitudinal strut coupling the two primary hoop members to define a primary lumen through the primary hoop members about a longitudinal axis, each of the primary hoop members being movable between a radially compressed configuration having a first diameter and a radially expanded configuration having a second diameter such that the primary lumen has a radially compressed inner diameter and a radially expanded inner diameter, and a branch hoop member and at least one flexible member coupling the branch hoop member with at least one of the primary hoop members, the branch hoop member having an axial length that is less than the radially compressed inner diameter of the primary lumen, and a diameter that is less than the longitudinal distance between the primary hoop members, the branch hoop member being movable between a first position and a second position, where in the first position the at least one flexible member being bowed inward such that, the entire branch hoop member is disposed within the primary lumen and between the primary hoop members when each of the primary hoop members is in the radially compressed configuration, where in the second position the branch hoop member is disposed outside the primary lumen when the primary hoop members are in the radially expanded configuration, the branch hoop member in the second position defining a branch lumen about a branch axis in communication with the primary lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A branched vessel prosthesis delivery system comprising:
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a delivery catheter extending from a proximal end to a distal end about a longitudinal axis, the delivery catheter including an outer sheath enclosing an inner shaft portion, the outer sheath being translatable along the longitudinal axis relative to the inner shaft; and a branched vessel prosthesis having a support frame comprising two primary hoop members spaced apart by a longitudinal distance and at least one primary longitudinal strut coupling the two primary hoop members to define a primary lumen through the primary hoop members, each of the primary hoop members being movable between a radially compressed configuration having a first diameter and a radially expanded configuration having a second diameter such that the primary lumen has a radially compressed inner diameter and a radially expanded inner diameter, and a branch hoop member and at least one flexible member coupling the branch hoop member with at least one of the primary hoop members, the branch hoop member having an axial length that is less than the radially compressed inner diameter of the primary lumen, and a diameter that is less than the longitudinal distance between the primary hoop members, the branch hoop member being movable between a first position and a second position, where in the first position the at least one flexible member being bowed inward such that, the entire branch hoop member is disposed within the primary lumen and between the primary hoop members when each of the primary hoop members is in the radially compressed configuration, where in the second position the branch hoop member is outside the primary lumen when the primary hoop members are in the radially expanded configuration, the branch hoop member in the second position defining a branch lumen in communication with the primary lumen, wherein the outer sheath and the inner shaft portion are configured and oriented such that a retaining region is formed to receive the branched vessel prosthesis with the primary hoop members in the radially compressed configuration and the branch hoop member in the first position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification