Device for generating an artificial constriction in the gastrointestinal tract

Abstract

A device for generating an artificial constriction in the gastrointestinal tract comprises a band (1), which can be placed annularly about a particular portion of the gastrointestinal tract, and a closure device (2) for connecting the end regions of the band (1), placed annularly about the portion of the gastrointestinal tract, which, in the closed state of the closure device (2) encompasses a throughlet opening (6), the band (1) comprising a hollow chamber (14) fillable with a filling medium and extending at least over a large portion of the length of the band (1), and upon filling the hollow chamber (14) a wall (11), delimiting the throughlet opening (6) of the band (1), extends in the direction toward the axis (7) of the throughlet opening decreasing the size of the throughlet opening. The device comprises further a foamed material body (13), connected with the band (1), which adjoins the surface (12), facing away from the throughlet opening (6), of the wall (11) delimiting the throughlet opening. The foamed material body (13) is adhered to the wall (11) at least over a large portion, preferably over the entire area, of its area in contact with the wall (11).

Dependencies are inferred from the claim text.