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
Load control device
Supplier capability methods, systems, and apparatuses for extended commerce
Concentrating photovoltaic system module with actuator control
Circuitry testing module and circuitry testing device
Methods for measuring media performance associated with adjacent track interference
Elegant solutions for fingerprint image enhancement
Probe for ultrasound diagnostic apparatus
  Randomly Featured Patents
Optical device and projector having the optical device
Cyclic digital to analog converter
Method for treating particles of a bulk material and method for controlling a roll mill
Array substrate for transflective liquid crystal display device and a fabricating method thereof
System for transmitting digital data over an electricity power line
Device for illuminating components of transparent material in testing for irregularities
Battery vent cap
Oxidation dye composition for keratinous fibres comprising a para-aminophenol, 2-methyl-5-aminophenol and a para-phenylenediamine and/or a bis(phenylalkylenediamine)
Synchronization for cylic redundancy check based, broadband communications network
Method and device for shaping hollow bodies made of thermoplastic material