Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for sequential delivery of multiple injectable substances stored in a prefilled syringe










Image Number 8 for United States Patent #6866653.

A syringe, which may be pre-filled, and a method of using the syringe is disclosed to provide sequential injection of two different fluids without mixing thereof. The syringe comprises in a first version a plunger and an intermediate disc sealingly disposed within a generally cylindrical barrel, with an outlet portion distal of the barrel, the outlet portion being generally larger in diameter so that as the disc is advanced into it far enough to substantially inject the first fluid the disc loses sealing engagement and the second fluid is then expelled around the disc and through the syringe opening. Baffles are provided within the outlet portion to prevent the disc from inadvertently sealing the opening, and channels may be provided around the baffles. In a second version a bag is provided adjacent the plunger, with the first fluid being contained within the barrel and the second fluid being contained within the bag, and at least one barb is provided in the bottom of the syringe to burst the bag after the first fluid is expelled to thereby expel the second fluid.








 
 
  Recently Added Patents
System and method for configuring software applications in a motor vehicle
Distributed image acquisition, storage, and backup system
Current collector for lead acid battery
Haworthia plant named `CAPETOWN`
Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation
Method and apparatus for allocating erasure coded data to disk storage
Cooking device and method of manufacture of the same
  Randomly Featured Patents
Composition containing an iron complexing protein and a precursor of nitrogen monoxide metabolism and/or a chemical donor of nitrogen monoxide and uses thereof
Heterocyclic compounds and their preparation and use
Method for treating sinusitis with uridine triphosphates and related compounds
Color photographic diffusion transfer process
System for controlling a signal slew rate in a digital device
Brake pressure control valve and a method for its assembly
Oxidation resistant ceramic matrix composites
Scroll compressor with discharge valve opened by centrifugal force
Speed control system for a motor with short-circuited rotor
Power supply system for a group of lamps