Patent ID: 7837657

Claim:
A device for injecting a fluid into an injection site, the injection site beneath an injection surface of a person, comprising: a. a syringe body, having a base, a sidewall, a top, said top opening into a hollow interior; b. a membrane, attached to said base of said syringe body and closing said base to form said hollow interior; c. a plunger, having a first end, and a second end, said first end situated within said hollow interior of said syringe body, and said second end projecting out through said top of said syringe body, said plunger configured to be capable of traveling back and forth within said hollow interior of said syringe body between a first position wherein said first end of said plunger is distal to said base of said syringe body and a second position wherein said first end of said plunger is proximate to said base of said syringe body; d. a piston, said piston attached to said first end of said plunger, said piston configured to span said hollow interior of said syringe body; e. a reservoir for holding the fluid within said hollow interior of said syringe body, said reservoir formed between said piston, said membrane, and said sidewall of said syringe body, said reservoir hermetically sealed; f. a needle, attached to said plunger proximal said first end of said plunger, said needle configured to travel with said plunger when said plunger moves between said first position and said second position, said needle having a first end and a second end, said needle including i. a tip, proximal said first end of said needle, said tip configured to pierce the skin of the person, said tip having an orifice; ii. a fluid communicator, proximal said second end of said needle, said fluid communicator fluidly connecting said needle to said reservoir; iii. a conduit fluidly connecting said orifice to said fluid communicator, with said fluid communicator being fluidly connected to said reservoir; g. wherein said tip of said needle is configured to project through said membrane and outside of said reservoir when said plunger is moved to said second position, and wherein said tip of said needle is positioned within said reservoir when said plunger is moved to said first position; and h. wherein said tip of said needle is immersed in the fluid contained within said reservoir when said device is loaded and said plunger is moved to said first position.