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 4 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
Authenticating and off-loading IPTV operations from mobile devices to fixed rendering viewing devices
Method and apparatus for managing communication services for user endpoint devices
Information processing apparatus, information processing method, and program
Wound dressings
Systems and methods for analyzing telecommunications invoices for payment
Cosmetic product including vegetable oil blend
Drug delivery system
  Randomly Featured Patents
Unsaturated polyols containing alkenyl aryl constituents
Hybrid vehicle recharging system and method of operation
Structure and methods for stress concentrating spacer
Resonance-type optical receiver circuit having a maximum amplifier input controlled by using an amplifier feedback and its method of receiving
Polypeptide--human galectin 15 and a polynucleotide encoding the same
Speed-up mode implementation for direct conversion receiver
Nozzle touch mechanism
Electrical contactor
Power conditioner and solar photovoltaic power generation system
Method of making a pedal rod