Patent ID: 8480615

Claim:
A device for inserting a medicament within a body cavity of a mammal, said device comprising: a cartridge for containing said medicament therein, said cartridge comprising: a housing comprising a proximal portion and a distal portion, a retractable chamber disposed within said housing, said retractable chamber comprising an internal surface, an external surface and a lumen defined by said internal surface, a substantially stationary member disposed within said lumen of said retractable chamber, said substantially stationary member having a uniform cross-section sized to provide a sliding fit within said lumen to provide for retraction of said retractable chamber about said substantially stationary member upon actuation of said device, and means for retracting said retractable chamber about said substantially stationary member while maintaining said substantially stationary member in a substantially stationary position upon actuation of said device; and means for activating said means for retracting said retractable chamber.