| 摘要 |
<p>A blister piercing element (75) for puncturing the lid of a blister containing a dose of medicament for inhalation by a user is disclosed. The piercing element comprises a body portion (33) having a surface (34), an outlet opening (37,38) in the surface for the passage of medicament entrained in an airflow out of the blister and, a piercing head (70) having a first portion (71) upstanding from said surface and a second portion (72) overhanging the opening that cuts a flap in a lid of a blister and pushes it away from the opening during insertion through said lid. The second portion extends laterally from an end of the first portion and the second portion comprises a primary cutting edge (77) formed at the free end of the second portion. The primary cutting edge is remote from the surface and has a tip at one end. The primary cutting edge is angled relative to the plane of a blister lid such that only said tip initially meets the blister lid to initiate a slit in the lid.</p> |
