CHILD RESISTANT BLISTER PACK

摘要

A blister pack unit comprises a flexible first sheet (4) having at least one blister pocket formed therein for the location of a unit dose, a frangible second sheet (8) located across the first sheet to close the or each pocket, and a flexible cover sheet (10), characterised in that the cover sheet is fixed to one side, or to two opposing sides, of the first and/or second sheets so as to extend across the or each pocket and be generally adjacent to the second sheet. The unit improves the child-resistant nature of blister packs, in particular pharmaceutical blister packs, by requiring the simultaneous application of pressure along the fixed sides during the actual release of a unit dose. This combination of actions should reduce the possibility of accidental release of unit doses by inquisitive fingers when not desired. Meanwhile, the actions are easy to understand and carry out by adults, and the return of the blister pack after release of a unit dose is to a `closed' configuration without requiring positive action by the user.