Time-Indicating Syringe Mixing Devices And Related Methods For Storing and Dispensing Two-Part Dental Compositions
First Claim
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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Accused Products
Abstract
Time-indicating syringe mixing systems for mixing, storing, and dispensing a two-part dental composition that becomes less stable upon mixing including a first plunger comprising an elongate stem and a plug at a distal end of the elongate stem, a hollow first chamber configured to contain a first component, a hollow second chamber configured to contain a second component, and means for indicating a recorded date when a first component initially contained within the hollow first chamber is mixed with a second component initially contained within the hollow second chamber. The inventive syringe mixing systems may be configured as syringe-in-syringe systems and/or syringe-to-syringe systems.
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Citations
17 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A time-indicating mixing, storing, and dispensing 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:
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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; 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 using one or both syringe barrels, or else applied in a dental procedure by expressing the mixed contents from the second syringe barrel; and a plurality of selectively removable plugs disposed on at least one of; i) a proximally disposed head of the first plunger; ii) a proximally disposed head of the second plunger; iii) a proximally disposed flange of the first syringe barrel;
oriv) a proximally disposed flange of the second syringe barrel; such that a practitioner can selectively remove one or more of the plurality of plugs, the removed plugs designating at least; a month; and a day or a week; so as to thereby provide an irreversible indicator of the mixing date by reference to the removed plugs. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification