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Time-Indicating Syringe Mixing Devices And Related Methods For Storing and Dispensing Two-Part Dental Compositions

  • US 20090024082A1
  • Filed: 09/30/2008
  • Published: 01/22/2009
  • Est. Priority Date: 05/01/2006
  • Status: Abandoned Application
First Claim
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1. A time-indicating mixing, storing, and dispensing syringe-in-syringe system for use with a two-part dental composition, that when mixed together, yields a time-sensitive dental composition having a shelf-life significantly less than the shelf-life of first and second components before they are mixed, the system comprising:

  • a first pre-dosed composition pre-packaged so as to be contained in a first syringe having a barrel with a first plunger slidable within the first barrel;

    a second pre-dosed composition pre-packaged so as to be contained in a second syringe having a barrel, with a second plunger slidable within the second barrel, wherein the first syringe barrel fits within the second syringe barrel so that the first syringe barrel also functions as the plunger for the second syringe barrel;

    the first and second plungers being operable so that by first sliding the first plunger into the first syringe barrel the first pre-dosed composition is introduced into the second syringe barrel so that it contacts the second pre-dosed composition, the two compositions thereafter being either further mixed within the second syringe barrel, or else applied in a dental procedure by expressing the mixed contents from the second syringe barrel; and

    a substantially flat indented label surface on which can be recorded a mixing date, the label surface being formed at a location on the first plunger such that once the first plunger is inserted, the first plunger is enclosed within a transparent or translucent portion of the first barrel upon insertion such that the recorded date is protected from damage or alteration.

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