Patent ID: 8372043
Filing Date: 2013-02-12
Classification: A61M,Y10T

Abstract:
1. A dual-stopper syringe, comprising: a chamber, including an outlet and a bypass channel having a front end and a rear end; a front stopper and a rear stopper, wherein the chamber, the front stopper, and the rear stopper define a flush agent chamber and a therapeutic agent chamber; a piston attached to the rear stopper; and a rod including a backstop and attached to the front stopper, wherein the rod penetrates through the rear stopper such that the rear stopper is adapted to slide along the rod between the front stopper and the backstop; wherein the flush agent chamber is adapted to draw a flush agent into the flush agent chamber while the piston is being pulled away from the outlet; and wherein the therapeutic agent chamber is adapted to draw a therapeutic agent into the therapeutic agent chamber, after the flush agent chamber is fully filled with a flush agent, while the piston is pulled away from the outlet.