发明名称 |
DOSE COUNTER FOR A METERED-DOSE INHALER |
摘要 |
Disclosed herein is a dose counter for counting doses of medicament dispensed by or remaining in a metered-dose inhaler. The dose counter comprises a rotatably mounted first gear wheel having a circular arrangement of ratchet teeth and a display coupled to the first gear wheel, the display having a visible array of dose counting indicia indexable in response to rotary motion of the first gear wheel. The dose counter further comprises an actuator mechanism having a first ratchet drive pawl for engaging the ratchet teeth of the first gear wheel in response to the dispensation of a medicament dose, and a second ratchet drive pawl for engaging the ratchet teeth of a gear wheel coupled to the display. The actuator mechanism is configured such that, in use of the dose counter for counting a dispensed dose, a first ratchet tooth of the first gear wheel is engaged and rotatably driven by the first ratchet drive pawl and then a second ratchet tooth of the gear wheel coupled to the display is engaged and rotatably driven by the second ratchet drive pawl. |
申请公布号 |
CA2839044(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
CA20102839044 |
申请日期 |
2010.07.28 |
申请人 |
IVAX INTERNATIONAL B.V. |
发明人 |
KAAR, SIMON G.;KARG, JEFFREY A.;JOHNSON, TIMOTHY NORMAN;USCHOLD, ROBERT CHARLES |
分类号 |
A61M15/00;B65D83/52;G06M1/04;G06M1/22 |
主分类号 |
A61M15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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