Patent ID: 8142402

Claim:
A multichamber ampoule to dispense a mixture consisting of several substances, said ampoule comprising: a container having at least two chambers, each of said chambers having back end and a front end, said back end being open to feed in one of the substances and subsequently insert a plunger into the chamber, and said front end having an outlet opening; a hollow cylindrical neck formed at the front ends of said chambers into which outlet openings of the chambers feed; a multiple-plug closure inserted into the neck, said multiple plug closure having a body with at least two plugs, each of said plugs extending toward the outlet opening of one of the chambers, said multiple-plug closure being movable between a first position and a second position, in said first position, said plugs extend into the outlet openings forming substantially fluid-tight seals with said outlet openings, and in said second position said plugs allow fluid to pass through the outlet openings; an adapter having a back section received in the neck and coupled to said multiple-plug closure, said adapter being movable in said neck to move said multi-plug closure between said first position and said second position, wherein moving said adapter toward said chambers causes said multiple-plug closure to move between said first position and said second position; and, a locking mechanism formed on the container and adapter, said locking mechanism resisting movement of the adapter from causing the multiple-plug closure to move from the first position to the second position once the multiple-plug closure is in the first position; wherein the body of the multiple-plug closure is coupled to the back section of the adapter such that the adapter can be rotated relative to the multiple-plug closure, and the locking mechanism is formed such that the adapter can be rotated from the first position toward the second position relative to the multiple-plug closure that is not rotatable in the outlet openings of the chambers, in the second position the adapter is removable from the neck of the container together with the multiple-plug closure and is separable from the container.