Single dose nasal spray pump

Abstract

In one or more embodiments a single dose nasal spray pump includes a reservoir configured for holding a single dose of material to be dispensed, the reservoir extending between a closed end and an open end; a cap to be configured to be disposed over the open end of the reservoir, the cap including an aperture; a stem extending between an outlet end and a lower end, the stem having a conduit extending from the outlet end of the stem to a conduit inlet at or adjacent the lower end of the stem; and a piston disposed about the stem and configured for movement between a first position wherein the piston seals or substantially seals the conduit inlet and a second position wherein the piston is remote from the conduit inlet; wherein the stem is configured for movement from a first stem position wherein the piston is disposed in the reservoir in the first piston position and a second stem position wherein the stem is moved toward the closed end of the reservoir such that the piston is moved into the second piston position.

Dependencies are inferred from the claim text.