Check valve for intraluminal graft

Details Check valve for intraluminal graft Check valve for intraluminal graft

1995-08-10

1997-12-16

Weiss, John G.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

623 12, 606194, 13761404, A61F 206

Patent

active

056979681

ABSTRACT:
An intraluminal graft assembly is provided with a double ball check valve which is normally urged to a closed position by a single compression spring acting on a first ball to urge it into sealing engagement with a valve seat. A spacer between the first ball and the second ball urges the second ball into sealing engagement with a second valve seat when the first valve is in sealing engagement with its associated valve seat. A threaded coupler engages and displaces the second valve axially out of engagement with its associated valve seat carrying with it the spacer and first ball thereby displacing also the first ball out of engagement with its associated valve seat. The double ball check valve permits the introduction of fluid into and removal of fluid from the cavity defined by inner and outer wall members of an intraluminal graft member.

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"Design of an Inflatable Endovascular Aortic Prosthesis", JP Pigott, HG Beebe, Jobst Vascular Center, Toledo, Ohio, 1 page.

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