| 摘要 |
A device for generating an artificial constriction in the gastrointestinal tract comprises a band (1), which can be placed annularly about a particular portion (2) of the gastrointestinal tract, and, by means of a piston-cylinder unit (8), the size of the passageway opening (19) of the portion (2) of the gastrointestinal tract encompassed by the band (1) is variable, and the band (1), in the proximity of its first end (4), is connected with the cylinder (6) of the piston-cylinder unit (8). The band (1) is connected in the proximity of its second end (5) with the piston (7) of this piston-cylinder unit (8).
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