Device for regulating blood flow

摘要

An implantable device for regulating blood flow through a blood vessel includes an elongated support. The support includes axially spaced apart first and second substantially annular support portions, and an x-shaped linking member linking the axially spaced apart portions to one another. The device also includes a valve membrane extending between the axially spaced apart support portions and having an upper portion, a lower portion and an intermediate portion. The valve membrane includes a first region and a second lower region. The first region is folded over the linking member for attachment and the second region is adjacent the first region and unattached to the linking member. The second region is movable between a first position to enable blood flow and a second position to inhibit blood flow.

主权项

1. An implantable device for regulating blood flow through a blood vessel, comprising:
a first frame and a second frame axially spaced-apart from the first frame, each frame configured to expand against an interior wall of a blood vessel and defining an opening for receiving blood flow therethrough; a linking member comprising at least two bar elements that couple the first frame to the second frame; and a valve membrane extending between the first frame and the second frame and comprising a first region adjacent to a second region, wherein the first region of the valve membrane attaches to and spans across a first bar element to a second bar element, and the second region of the valve membrane comprises at least two flaps being moveable between a first position to enable blood flow and a second position to inhibit blood flow.