Drug delivery assembly, and single dose inhaler for dry powder drug delivery having such assembly

摘要

The assembly (100) comprises a body (105) having a drug-receiving chamber (110) and a fluid passage (120) in communication thereto. The fluid passage (120) has at least one inlet portion (120a; 120b) through which a fluid flow path (130) is defined when air passes through the drug-receiving chamber (110). One or more protrusions (200) are formed in the inlet portion (120a; 120b) comprising a first segment (200a) and a second segment (200b) forming an angle to each other. The second segment (200b) is arranged such that the flow of fluid passing through the fluid passage (120) is a laminar flow.