US 12,201,795 B2 · Metered dose topical applicator

Abstract

A topical applicator of the propel/repel type includes a reservoir, an attachable applicator cap, and a metered dosing system. The reservoir is suitable for mixing a topical formulation of multiple constituents using an electronic mortar and pestle and is closed using the applicator cap. Alternatively, the reservoir may be prefilled with a ready-to-use cream and medicament formulation, then sealed with a removable seal. The topical applicator can include a fast purge feature that overrides the metered dosing system to facilitate removal of air from the reservoir. The topical applicator can also include a one-way ratcheting feature to prevent reverse movement (repel) of the metered dosing system. Metered doses can be dispensed through holes in the applicator cap by rotating a knob, which has detent positions that correspond to discrete doses, and which provides audible and tactile feedback.

Claims20

Dependent claims

A method of preparing a topical applicator, including:

introducing topical formulation constituents into an empty topical applicator container with a movable elevator and a rotatable knob to move the elevator;
attaching the topical applicator to a mixing apparatus;
mixing the topical formulation constituents into a topical formulation by the mixing apparatus;
removing the topical applicator container and movable elevator with the topical formulation constituents mixed from the mixing apparatus;
applying a dispense cap having a skin engagement surface with at least one dispense aperture to the topical applicator container to thereby enclose the topical formulation;
and
manually pushing the elevator toward the applicator cap, without rotating the knob, to purge air from the topical applicator.

4 more elements

Dependencies are inferred from the claim text.

Metered dose topical applicator

Life of this patent

Metered dose topical applicator

Life of this patent

Abstract

Claims20