Patent ID: 8100154

Claim:
A transfer assembly comprising: an elongated outer housing having first and second ends; a vial gripper located at said first end thereof; a cartridge holder, a first end of said cartridge holder being mounted within said outer housing at said second end thereof, said cartridge holder being slidable within said outer housing; an inner housing within said outer housing, said inner housing having first and second ends proximate said first and second ends of said outer housing respectively; a fluid passageway within said inner housing, a first end of said fluid passageway located proximate said first end of said inner housing and terminating in a first piercing element; a second end of said fluid passageway proximate said second end of said inner housing terminating in a second piercing element; and said second end of said inner housing being adapted to be secured to a plunger on a cartridge; an adaptor mounted on said second end of said outer housing, said adaptor being moveable between a retracted position and an extended position, said adaptor is screwthreadedly engaged with said outer housing.