发明名称 |
Dose counters for inhalers, inhalers and methods of assembly thereof |
摘要 |
A manually operated metered dose inhaler includes a dose counter chamber including a dose display tape driven by a ratchet wheel which is driven in turn by an actuator pawl actuated by movement of a canister, the tape unwinding from a stock bobbin during use of the inhaler, a rotation regulator being provided for the stock bobbin and including a wavelike engagement surface with concavities which engage against control elements in the form of protrusions on resilient forks of a split pin thereby permitting incremental unwinding of the stock bobbin yet resisting excessive rotation if the inhaler is dropped onto a hard surface. |
申请公布号 |
US9216260(B2) |
申请公布日期 |
2015.12.22 |
申请号 |
US201314103392 |
申请日期 |
2013.12.11 |
申请人 |
IVAX Pharmaceuticals Ireland;Norton Waterford;Teva Pharmaceuticals Ireland |
发明人 |
Walsh Declan;Fenlon Derek;Kaar Simon;Hazenberg Jan Geert;Buck Dan;Clancy Paul;Uschold Robert Charles;Karg Jeffrey A. |
分类号 |
G06M1/06;A61M11/00;A61M15/00;G06M1/24 |
主分类号 |
G06M1/06 |
代理机构 |
RatnerPrestia |
代理人 |
RatnerPrestia |
主权项 |
1. A shaft for holding counter tape in a dose counter for an inhaler, the shaft having an engagement surface including incrementally spaced formations located around a periphery thereof, the formations comprising a series of curved concavities and convex portions. |
地址 |
Utrecht NL |