Patent ID: 8394061
Filing Date: 2013-03-12
Classification: A61M

Abstract:
1. A fluid dispensing device comprising: (a) a first syringe having a reservoir with an outlet port, the reservoir adapted to hold a treatment fluid to be dispensed, and a plunger for ejecting the treatment fluid from the reservoir through the said outlet port; (b) a second syringe having a reservoir with an outlet port, the reservoir of the second syringe adapted to contain a fluid, and a plunger for ejecting the fluid from the second reservoir; (c) a flow rate control device coupled to the outlet port of the reservoir of the second syringe for controlling the rate of displacement of the plunger of the first syringe; (d) a link member coupling the plunger of the second syringe to the plunger of the first syringe; (e) a constant force spring operatively coupled to the plunger of the second syringe to impart a generally constant force to the plunger of the second syringe such that the plunger of the first syringe moves in unison with the plunger of the second syringe over a predetermined range of motion; and (f) a rate selector coupled to the flow rate control device, the rate selector including: