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Apparatus and methods for mixing two components

  • US 7,018,089 B2
  • Filed: 09/10/2003
  • Issued: 03/28/2006
  • Est. Priority Date: 09/17/2002
  • Status: Expired due to Term
First Claim
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1. A mixing syringe comprising:

  • a syringe barrel having a hollow interior and an outlet nozzle at a lower end;

    a plunger having a hollow interior reciprocatably disposed in the hollow interior of the syringe barrel;

    a mixing rod reciprocatably disposed in the hollow interior of the syringe barrel and having a mixing element at its lower end which is adapted to mix material in the hollow interior of the syringe barrel upon reciprocation of the mixing rod, wherein the mixing element has openings to enhance mixing;

    said plunger and mixing rod having a first relative position wherein the hollow interiors of the syringe barrel and of the plunger are sealed from each other and a second relative position wherein the hollow interiors are in fluid communication.

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