Patent ID: 7967793

Claim:
A reciprocating syringe, comprising: a) an external frame, defining a first receptacle suitable for retaining a first insertable syringe barrel in a relationship with the frame that discourages translation of the first insertable syringe barrel relative to the frame; b) a first plunger suitable for use with a syringe barrel retained in the first receptacle; c) an auxiliary actuator slidably mounted with the frame and suitable for manual actuation by a human hand; d) wherein the auxiliary actuator is coupled with the first plunger such that motion of the first plunger in a direction into a syringe barrel retained in the first receptacle causes motion of the auxiliary actuator in an actuation direction along an actuation axis, and such that motion of the auxiliary actuator along the actuation axis opposite the actuation direction causes motion of the first plunger in a direction out of a syringe barrel retained in the first receptacle, wherein the plunger is configured to accept force directly from a human hand to control the motion of the plunger in a syringe barrel retained in the first receptacle, and wherein the frame and the first plunger do not form a syringe when there is not a syringe barrel retained in the first receptacle.