Extraction system for the production of a drink using a capsule

System for preparing drinks from a capsule comprising: a capsule (1) including a body comprising an injection face and an extraction face with an opening and terminating in a collar (5) and a portion for delivery of the drink; the collar terminating in a free edge (8); a device for preparing drinks comprising: a first chamber portion (14) comprising a cavity of a shape suitable for substantially covering the body of the capsule and a clamping surface (23) which is engaged in compression against the collar, and a second chamber portion comprising an extraction plate, at least one of the two chamber portions being able to move relative to the other chamber portion from an open position in which the capsule is inserted to a closed position in which the capsule is enclosed between the two chamber portions, the first chamber portion (14) comprising means (32, 38) for hooking the capsule making it possible to keep the capsule in the said cavity of the said first portion during the transition from the closed position to the open position; the capsule comprising complementary means (8, 39) suitable for the takeover by these hooking means.