Patent ID: 8905017

Claim:
A reservoir ( 3 ) for a nebuliser ( 1 ), the reservoir comprising: a fluid chamber ( 4 ) for a fluid ( 2 ) medicament formulation, a closure ( 24 ) that seals the fluid chamber ( 4 ), comprising a first closure member ( 26 ) and a second closure member ( 27 ), the two closure members ( 26 , 27 ) being connected to each other in fluidtight manner in an annular attachment region ( 29 ) and defining a longitudinal axis ( 33 ) of the reservoir, a barrier ( 30 ) of annular configuration, spaced radially inwardly, and axially away, from the annular attachment region ( 29 ), wherein: (i) the barrier ( 30 ) is formed by a snug or press fit of the first and second closure members ( 26 , 27 ), (ii) the first closure member ( 26 ) includes an annular conical section initiating at a first annular edge and extending conically, radially, and inwardly to a second annular edge, and (iii) the second closure member ( 27 ) includes an annular engagement portion configured to engage the annular conical section of the first closure member ( 26 ) between the first and second annular edge thereof, such that the first and second closure members ( 26 , 27 ) conically engage one another in an abutment region ( 31 ), wherein the abutment region ( 31 ) is defined by the annular conical section of the first closure member ( 26 ) being inclined relative to the longitudinal axis of the reservoir ( 3 ), and the barrier ( 30 ) arranged on a fluid side with respect to the attachment region ( 29 ) to prevent the ingress of any particles produced during the attachment of the closure members ( 26 , 27 ) or other contaminants into the fluid ( 2 ) and/or into the fluid chamber ( 4 ).