Reservoir and atomizer

摘要

A reservoir and a nebulizer having such a reservoir are proposed. The reservoir comprises a closure for a fluid chamber with a medicament formulation that is formed by two closure members welded together. The closure comprises a particle barrier for preventing the ingress into the fluid chamber of any weld particles that may potentially be formed during the welding of the two closure members. The fluid chamber is preferably broadened in the shape of a beaver tail and is sealed lengthways with an additional strip of material.

主权项

1. 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).