JACOBS, ALEXANDER THOMAS,JUDSON, JARED ALDEN,ROW, GORDON DAVIDSON
申请号：
CA2557897
公开号：
CA2557897C
申请日:
2005.03.25
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
A medication dispensing apparatus with a spring-driven locking featureincludes a drive member movable in a distal direction within a housing, and afluid container with a piston that is advanceable by the drive member (60)when such drive member is moved distally by a driving means. The apparatusincludes a latching element (180) having a skid (190) that is slidable along asurface of the drive member as the drive member passes distally duringadvancement. The drive member is arranged with the skid so as to maintain alatching lip of the latching element against a spring force in a firstposition free of the driving means during dose preparing and injecting priorto a final dose administration. The skid-engaging surface shifts distally ofthe skid such that the skid passes beyond a proximal end of that surface uponadministration of a final dose, whereby the latching lip is urged by thespring force from the first position to a second position to physically lockthe driving means to prevent further dose preparing and injecting.
