Importance

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Abstract

The apparatus is adapted to be held in one hand of an operator from mixing components of a composition packaged as two or more individually stable components of substantially equal volume and viscosity each in a receptacle having a closure made of a material which can be ruptured, and to dispense the mixed composition by a manual operation. The device comprises a mixing housing, separate chambers for the receptacles, piercing means for piercing the receptacles, plunger means for expelling a component from the chamber into the mixing region, a mixing element in the mixing region, and a passageway which contains means for actuating the mixing element and through which the mixed composition may be expelled from the mixing region. The construction and arrangement is such that relative movement of approach may be caused between the piercing means and the receptacles to rupture the receptacles, and between the plunger means and the mixing housing to urge the component into the mixing region, the mixing element may be actuated to mix the components in the mixing region, and relative movement of approach may be brought about between elements of the device to discharge the mixed composition through said passageway. The device is principally intended for mixing and dispensing of silicone foam to provide foamed dressings.

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First Claim