| 摘要 |
<p>A pump-type dispenser (100) for dispensing predetermined doses of medicament in droplets or in spray form to the nasal passage has a rigid vial for medicament, a one-way actuation mechanism (1103), a one-way valve mechanism (3105) in the nozzle area (310), and a spring element (22), both the valve mechanism and the spring element being formed as integral portions of the pump body (3111).A nasal screen (102) aligned with the dispenser nozzle hides the nasal area from public view. The one-way actuation mechanism enables the user to load and dispense a uniform quantity of medicament with a uniform actuation force and speed via a single continuous motion of the actuation mechanism upon application of a very small force on the actuation mechanism by the user. The one-way valve mechanism ensures a one-way movement of medicament from the dispenser, thereby preserving substantially perfect steriliy of the medicament in the dispenser.</p> |
