Patent ID: 6913596
Filing Date: 2005-07-05
Classification: A61M

Abstract:
1. An implantable device comprising: an elongate member having a tubular wall defined by an inner surface, an opposed outer surface and a passageway longitudinally therethrough, and having a distal end implantable into a body lumen, and further including a slit extending through a distal portion of said tubular wall of said elongate member, said slit being operably openable in response to fluid pressure within said elongate member to allow fluid communication through said tubular wall and operably closeable upon removal of the fluid pressure within said elongate member to prevent fluid communication through said tubular wall, wherein said fluid pressure is different from a luminal pressure of said body lumen; and a member formed of a hydrophilic composition at said distal end of said elongate member, said member having a first position in a quiescent state to allow fluid communication through said distal end and a second position in an expanded state to prevent fluid communication through said distal end; wherein said hydrophilic composition expands upon contact with an aqueous fluid to move said member from said quiescent state to said expanded state.