Patent ID: 7976491
Filing Date: 2011-07-12
Classification: A61J

Abstract:
1. An actuator for use in a device for dispensing medicaments to a cavity of a mammal, said actuator comprising: a handle case having a proximal portion for gripping and a distal portion comprising means for attaching said actuator to a cartridge for containing medicament, and means for creating a proximal to distal linear motion with respect to said handle case, wherein said cartridge comprises a retractable chamber for containing said medicament disposed therein, a substantially stationary member and means for retracting said retractable chamber about said substantially stationary member while maintaining said substantially stationary member in a substantially stationary position; whereby upon attachment of said actuator to said cartridge and actuation of said device by said actuator, said means for creating a proximal to distal linear motion interacts with said means for retracting said retractable chamber and is effective to provide for retraction of said retractable chamber about said substantially stationary member; and wherein a proximal end of said retractable chamber of said cartridge is engaged with a distal end of a cannulated inner sleeve disposed in said handle case.