Patent ID: 7867197

Claim:
A syringe driver, comprising: a frame adapted to seat a syringe; a driver slidably disposed within the frame and adapted to seat a plunger of a syringe; a puller slidably disposed within the frame and having a latch formed thereon and adapted to mate to an engagement element on the frame; and a force-delivery element coupled to and extending between the driver and the puller, the force-delivering element mating to the driver at a location adjacent to a proximal end of a plunger of the syringe, the force delivery element pressing against the frame to create a frictional force between the puller and the frame sufficient to prevent siphoning of the syringe; wherein the puller is movable between a first position, in which the force-delivery element is in a resting position, and a second position, in which the latch on the puller mates to the engagement element on the frame to expand the force-delivery element thereby causing the force-delivery element to pull the driver and drive the plunger into a barrel of a syringe seated within the frame.