Patent ID: 8523807

Claim:
A transfer and mixing device comprising: an outer housing; a by-pass cartridge having a by-pass formed therein, said by-pass cartridge being mounted within said outer housing; a septum located at a front end of said by-pass cartridge; a first plunger located at a rear end of said by-pass cartridge; a second plunger located intermediate said septum and said first plunger, said second plunger being located rearwardly of said by-pass; a syringe socket at a front end of said outer housing, said syringe socket including a piercing member extending inwardly towards said septum; a syringe securable to said syringe socket; a syringe plunger mounted in said syringe, said syringe plunger having a fluid passageway therein, a hydrophobic membrane covering said passageway, said passageway thereby permitting the passage of gas therethrough; and a plunger rod.