FLUID DISPENSING DEVICE

摘要

A fluid dispensing device for dispensing a fluid form medicament formulation having;a viscosity of from 10 to 2000 mPa·s. is disclosed and comprises a housing and a fluid discharge device. The fluid discharge device is arranged to be actuated by one or more levers so as to apply a force to the fluid discharge device which is used to move a container forming part of the fluid discharge device along a longitudinal axis of the fluid discharge device to cause actuation of a pump forming part of the fluid discharge device.;A pre-load means is used to prevent actuation of the pump until a pre-determined force is applied to each lever of sufficient magnitude to guarantee the production of a well developed efficient spray from the fluid dispensing device.

主权项

1. A finger-operable actuating member for a fluid dispensing device for movement transversely with respect to the longitudinal axis of a fluid discharge device of the fluid dispensing device to apply a force to the fluid discharge device to move the fluid discharge device along its longitudinal axis so as to discharge a fluid medicament formulation therefrom, wherein the actuating member has a surface for applying the force to a follower of the fluid discharge device, wherein the surface has a two-stage profile to provide a pre-load means to prevent discharge from the fluid discharge device until a pre-determined force is applied to the actuating member, and wherein the two-stage profile comprises an initial concave high gradient profile and a subsequent convex lower gradient profile such that, in use, no significant force is transferable from the actuating member to the fluid discharge device along the longitudinal axis until the pre-determined force is applied to the actuating member.