MEDICAMENT APPLICATOR

摘要

An actuator 100 is used to dispense a medicament from a container 5 having at least a first and second portion. The actuator includes a holder 102, a trigger member 120 and a push member 430. The holder is adapted to engage at least the first portion of the container. The trigger member is pivotally connected to the holder at a pivot axis 156, wherein the trigger member is pivotable about the pivot axis in a first direction toward the grippable portion and a second direction opposite the first direction. The push member is connected to the trigger member, wherein the push member is pivotable about the pivot axis in the first direction as the trigger member is pivoted in the first direction and wherein the push member is pivotable about the pivot axis in the second direction as the trigger member is pivoted in the second direction. In one preferred embodiment, the trigger member follows a path, and a stop member 604 engages one of the container and push member and immobilizes the push member as the trigger is moved along a predetermined portion of the path. In one preferred embodiment, a trip member 608 engages the stop member and disengages it from one of the container and the push member, thereby allowing the push member to move the second portion of the container. In one preferred embodiment, the actuator includes an indicator mechanism 500 for indicating the number of 9 doses remaining in or dispensed from the container. A method of dispensing medicament from the container, and a method of assembling the actuator also are provided. A nasal applicator is also provided, and includes a diffuser 20 having a passageway comprising a tapered portion 30.