| 摘要 |
<p>A dose counter (20) for a medicament delivery device, in particular an inhaler, comprises two interengaged gears (5, 27) having different numbers of teeth (8, 9). One of the gears (27) is rotationally fixed and the gears (27, 5) are mounted so that actuation of medicament delivery device gyrates the engagement of one of the gears (5) around the other gear (27), and causes one of the gears (5) to rotate about its own axis with such rotation rotating a dose indicator (7). The gears may be crown gears (27, 5) with one mounted at an angle to the other, or an external gear (115/104) mounted eccentrically within an internal gear (102).</p> |
