| 摘要 |
<p>A dose counter (40) for a metered dose inhaler comprising a medicament-containing vessel (30) and an actuator body (20) having a drug delivery outlet (25) is adapted for attachment either to the medicament-containing vessel (30) or to the actuator (20). The dose counter (40) is provided with pressure sensing means (158, see Figs 2 and 3), counting means having a count display (43) and means (168, see Figs 2 and 3) to increment the count display (43) in direct response to the application of a predetermined pressure on the pressure sensing means. The invention does not rely on displacement triggering or the mechanical engagement between respective parts carried on the medicament-containing vessel and on the actuator housing.</p> |
