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COMPTEUR DE DOSES POUR UN AEROSOL DOSEUR
专利权人:
IVAX INTERNATIONAL B.V.
发明人:
KAAR, SIMON G.,KARG, JEFFREY A.,JOHNSON, TIMOTHY NORMAN,USCHOLD, ROBERT CHARLES
申请号:
CA2769241
公开号:
CA2769241C
申请日:
2010.07.28
申请国别(地区):
CA
年份:
2014
代理人:
摘要:
Disclosed herein is a dose counter (118) for counting doses of medicament dispensed by or remaining in a metered-dose inhaler. The dose counter comprises: a rotatably mounted gear wheel (130) having a circular arrangement of ratchet teeth (132); a display coupled to the gear wheel, the display having a visible array of dose counting indicia indexable in response to rotary motion of the gear wheel; and an actuator mechanism having a driver (152) for rotatably driving the gear wheel in response to the dispensation of a medicament dose, the driver being arranged to engage the ratchet teeth of the gear wheel. The actuator mechanism comprises a pivotally mounted lever or linkage having an input portion. The lever or linkage is arranged to amplify a linear stroke at the input portion such that a linear stroke of the driver exceeds the linear input stroke. By amplifying the stroke in this way, the risk of undercounting due to insufficient stroke length may, be reduced.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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