Patent ID: 8088118

Claim:
A method for transferring a fluid from a first container ( 412 ) to a second container ( 414 ), said first container having an open top sealed by a septum ( 424 ), a piston ( 422 ) located within said first container ( 412 ), said piston ( 422 ) and said septum ( 424 ) defining a compartment having said fluid ( 426 ) therein, said second container ( 414 ) having a body, a cavity within said body, an open top and an open bottom, said open top being sealed by a pierceable septum ( 432 ), a plunger ( 430 ) within said cavity, said plunger ( 430 ) being located proximate said septum ( 432 ) so as to minimize any air between said septum and said plunger, comprising the steps of: supplying a housing ( 448 ) having a moveable shuttle ( 416 ) therein, said shuttle having first and second piercing members ( 442 , 444 ) located at either end thereof with a fluid passageway extending between said first and second piercing ends; placing said second container ( 414 ) within said housing; placing said first container ( 412 ) having said fluid ( 426 ) therein within said housing; advancing one of said containers ( 412 , 414 ) to cause said piercing members to pierce said plunger ( 430 ) of said second container and said pierceable septum ( 424 ) of said first container; exerting pressure on a first container piston ( 422 ) to cause said fluid ( 426 ) to pass from said first container through said fluid passageway ( 440 ) into said second container and cause said plunger ( 430 ) to move rearwardly towards said open bottom.