Disposable monodose inhaler for powdered medicaments

摘要

A monodose inhaler for powdered medicaments consists of a hollow substantially pipe-shaped body that has a first portion (H), for housing a capsule or cartridge of powdered medicament, defined by a wall (W) in which there are formed slots (S) as air intakes to an inner region where the powder drops, and a second portion (M) connected to the first portion (H) for delivering the medicament by means of a primary stream (F) that carries the powder from the drop region along a delivery duct (D) whose end is suitable to be placed in the patient's mouth, and it further includes a secondary duct (D′) located under the delivery duct (D) and provided with its own air intake (S′) for delivering a powderless secondary stream (F′).

主权项

1. An inhaler for powdered medicaments, comprising:
a hollow substantially pipe-shaped body having a first portion for housing a capsule or cartridge of powdered medicament, defined by a first wall in which there are formed one or more primary air intakes to an inner, powder drop region where the powdered medicament drops; and a second portion connected to said first portion for delivering the powdered medicament by means of a primary stream from said powder drop region along a delivery duct having an end forming a first part of a mouthpiece with a predetermined length, said mouthpiece being suitable for placement in a patient's mouth, said delivery duct being part of said second portion, wherein, under said delivery duct, is a secondary duct having a secondary air intake for delivering a powderless secondary stream, said secondary duct being part of said second portion and being separated from said delivery duct by means of a dividing baffle, said secondary duct having an end forming a second part of said mouthpiece with said dividing baffle which is disposed between said delivery duct and said secondary duct, said dividing baffle extending the predetermined length of the mouthpiece whereby excessive deposition of the powdered medicament to the patent's oropharingeal cavity is inhibited, and wherein said inhaler is manufactured from plastic by injection molding with a monolithic structure.