Patent ID: 8353859

Claim:
A syringe system comprising a syringe having a body and a hollow barrel chamber, a plunger shaft slidable in said barrel chamber, a needle body adapted for holding a needle, and a valve body, said valve body having a valve guide chamber, said valve guide chamber having an input port fluidly connectable to a fluid pressurizing means, a storage fill port and a storage empty port in fluid communication with said barrel chamber, and a discharge port in fluid communication with said needle body, a valve plunger linearly slidable in said valve guide chamber, a biasing member coupled to said valve plunger, said valve plunger moveable to a fill position and a discharge position, said fill position wherein said discharge port and storage empty ports are closed by said plunger valve and said input port and said storage fill port are opened, said discharge position wherein said input port and said storage fill port are closed by said plunger valve and said storage empty port and said discharge port are opened, said valve plunger assuming said fill position in response to a positive pressure asserted by the fluid pressurizing means at said input port, said input port and discharge port vertically spaced apart in said valve guide chamber, and said storage fill port and storage discharge port are vertically spaced apart in said valve guide chamber.