| 摘要 |
<p>An actuator for an inhaler for administering medicament by inhalation, comprising: a main body (1) defining a chamber (4) for receiving a canister (3) containing medicament, and including an outlet (11) through which medicament is in use delivered, the canister (3) being in use acted upon by the user in the delivery of medicament; a cover member (2) rotatable in relation to the main body (1) between a first, closed position in which the outlet (11) is covered and a second, open position in which the outlet (11) is exposed, the cover member (2) including a grip portion (33) which in use is acted upon by the user in the delivery of medicament and includes a surface (33a) having a component facing in the sense of rotation of the cover member (2) from the open to the closed position; characterized in that the main body (1) includes a projecting member (16) which includes a surface (16a) having a component facing in the sense of rotation of the cover member (2) from the closed to the open position behind which the surface (33a) of the grip portion (33) of the cover member (2) is at least partly located in the open position of the cover member (2), whereby in use in the delivery of medicament the surface (33a) of the grip portion (33) of the cover member (2) is caused to be urged behind the surface (16a) of the projecting member (16) of the main body (1) so as to lock the cover member (2) relative to the main body (1).</p> |
