Patent ID: 6328032
Filing Date: 2001-12-11
Classification: A61M

Abstract:
An inhaler for administering powder by inhalation which comprises a member that defines a chamber for containing desiccant, the member comprising first and second parts which when fitted together define the chamber for containing desiccant, wherein the first part has an outer surface provided with at least one of an internal or external spline and the second part has an inner surface provided with at least one of the other of an internal or external spline, the splines being dimensioned and spaced and the first and second parts fitted together, wherein the first and second parts define a plurality of spaces therebetween, such that any desiccant caught between the splines may be contained within the spaces, and wherein said plurality of spaces may be achieved by varying only the dimensions of said splines on said outer surface relative to the dimensions of said splines on said inner surface, or by varying only the spacing between said splines on said outer surface relative to said splines on said inner surface, or by varying both the dimensions and the spacing of said splines on said outer surface relative to said splines on said inner surface.