| 摘要 |
<p>A dosing device comprising a dispensing means (26) for dispensing a dose material and a dose actuation mechanism (44) is provided. The dose actuation mechanism (44) comprises a number of integrally hinged links (52, 54, 55) which are connected to each other at hinging points. A deflectable tongue (157), moveable in response to air flow from inhalation by a patient is attached to a first link (52), to move the first link in response to air flow, movement of the first link being transferred to a second link (54) to cause actuation of the dispensing means. The first link rests at an over-centre, or stable, position prior to operation, and moves under-centre during operation of the device to trigger movement of the second link. The dose actuation mechanism is a one-piece moulding from plastics material.</p> |
