Inhalation device

Details Inhalation device Inhalation device

A - Human Necessities

61

M

A61M 15/00 (2006.01)

Patent

CA 2283194

An inhaler for administering powder by inhalation and a method of constructing the same, the inhaler comprising: a housing having a screw thread (28) and a substantially circular sealing surface (40) coaxial therewith; a mouthpiece (2) attached to the housing; and a cap (14) for covering at least the mouthpiece (2), the cap (14) having a screw thread (17) for engaging the screw thread (28) on the housing and a substantially circular sealing surface (15) for engaging the sealing surface (40) on the housing; wherein the sealing surfaces (15, 40) are shaped and dimensioned such that the radial force therebetween is substantially constant for any relative position where the sealing surfaces (15, 40) engage one another.

Inhalateur servant pour l'administration de poudre par inhalation et son procédé de construction. L'inhalateur comprend un corps comportant un filetage (28) de vis et une surface (40) d'étanchéité sensiblement circulaire située sur le même axe que ce dernier; un embout buccal (2) fixé au corps; et un bouchon (15) prévu pour recouvrir au moins l'embout buccal (2), le bouchon (14) comportant un filetage (17) de vis prévu pour s'associer au filetage (28) formé sur le corps et une surface d'étanchéité (15) sensiblement circulaire prévue pour coopérer avec la surface d'étanchéité (40) du boîtier; lesdites surfaces d'étanchéité (15, 40) étant de formes et de dimensions telles que la force radiale existant entre ces dernières est sensiblement constante pour n'importe quelle position relative dans laquelle les surfaces d'étanchéité (15, 40) sont en contact réciproque.

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