Patent ID: 8632519
Filing Date: 2014-01-21
Classification: A61M

Abstract:
1. A syringe assembly, comprising: a syringe barrel having an exterior surface, an inside surface defining a chamber, an open proximal end, a distal end, and an outlet disposed adjacent the distal end in fluid communication with the chamber; and a plunger assembly including an elongated plunger rod and a plunger head, the elongated plunger rod being associated with the plunger head to move the plunger head within the chamber of the syringe barrel through an injection cycle, at least a portion of the elongated plunger rod being disposed within the syringe barrel and a portion of the elongated plunger rod extending alongside the exterior surface of the syringe barrel when said elongated plunger rod is in a collapsed position, wherein the plunger rod is adapted to slidably move from the collapsed position extending alongside the exterior surface of the syringe barrel to an extended position engaging the plunger head to move the plunger head through the injection cycle, wherein at least a portion of the plunger rod continuously remains in contact with the syringe assembly during a transition from the collapsed position to the extended position.