Patent ID: 8839974

Claim:
A closure cap for a container which is filled with a medical fluid and has a mouthpiece sealed by a pierceable membrane, comprising a cap-shaped closure body which has a lid part and an edge part, a drinking stub disposed on the lid part and having an outer endpiece and an inner endpiece, the outer endpiece having an opening for drinking purposes, the inner endpiece having a piercing member configured to puncture the membrane, and a ventilation stub having an opening for ventilating the container during drinking, wherein the drinking stub is pivotable, relative to the ventilation stub, between a first position, in which the drinking stub bears against the closure body, and a second position, in which the drinking stub protrudes from the closure body, such that, when the drinking stub is pivoted, the membrane is pierced and a connection is produced between the opening in the drinking stub and the container interior, wherein the drinking stub is closed by the ventilation stub in the first position, in which the drinking stub bears against the closure body, and the drinking stub is opened in the second position, in which the drinking stub protrudes from the closure body.