Patent ID: 8911393

Claim:
An apparatus for creating a fistula between a stomach and an intestine of a patient, said apparatus comprising a flow controller for creating a fistula from said stomach to said intestine of said patient comprising: a) a flexible passageway having an internal lumen with an inlet end and an outlet end, said passageway sized to extend from said stomach to said intestine with said inlet residing in said stomach and with said outlet residing in said intestine, and having a valve for controlling the flow of contents through the passageway; b) a first expandable chamber attached to the passageway proximate said inlet and sized to occupy a substantial volume of the antrum; and c) second expandable chamber attached to the passageway proximate said outlet; wherein said first and second chambers are adapted to seal against opposing tissue of at least one of said stomach and said intestine upon expansion of said chambers; and d) an anchor for securing the passageway, wherein said passageway is completely outside the pylorus.