Patent ID: 6322542
Filing Date: 2001-11-27
Classification: A61M,B05B

Abstract:
A delivery device for delivering one or more metered volumes of liquid containing medicament to a posterior region of the nasal cavity, comprising a delivery means (103) as an elongate tubular member (151) and a nozzle (153) at the free end thereof, through which liquid containing medicament is delivered, and a delivery unit (101) coupled to the delivery means (103), the delivery unit (101) comprising a pump assembly (107) on the actuation of which a metered volume of liquid is delivered to the delivery means (103), characterized in that the pump assembly (107) comprises a main body (109) which defines a chamber (111) having a first opening (113) that defines an inlet, a second opening (115) that defines an outlet and a third opening across which a resilient membrane (119) is disposed whereby delivery of a metered volume of liquid to the outlet is achieved by movement of the membrane, and wherein said delivery unit (101) further comprises a housing (105) in which the delivery means (103) and the pump assembly (107) are slideably disposed, wherein the delivery means (103) is movable between a first position in which the delivery means (103) is substantially within the housing (105) and a second position in which the delivery means (103) is extended from the housing (105) in a position ready for use.