Time indicating containers for dental compositions
First Claim
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1. A time indicating storage system for a dental composition comprising:
- a container for holding a dental composition; and
activatable time sensitive marking means disposed on or within the container, wherein upon activation, the time sensitive marking means identifies time lapsed since activation of the time sensitive marking means.
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Abstract
A system for storing a dental composition having a given shelf-life. The storage system includes a container (e.g., a syringe) and activatable time sensitive marking means disposed on or within the container. Upon activation of the time sensitive marking means, the system begins to indicate time lapsed since activation. The time sensitive marking means allows a dental practitioner to determine whether a dental composition within the container has expired, or how much time remains before the composition expires and should either be used up or discarded.
62 Citations
22 Claims
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1. A time indicating storage system for a dental composition comprising:
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a container for holding a dental composition; and
activatable time sensitive marking means disposed on or within the container, wherein upon activation, the time sensitive marking means identifies time lapsed since activation of the time sensitive marking means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A time indicating storage system for a dental composition comprising:
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a syringe for holding a dental composition, the syringe including a barrel and a plunger stem slidably disposed within the barrel; and
an activatable label disposed at least partially within the plunger stem comprising;
a length of microporous material sealed within the plunger stem; and
a blister disposed on a head of the plunger stem, the blister containing a tinted liquid that migrates along the microporous material by capillary action upon activation so as to have a migration length that increases as a function of time, the migration length of the tinted liquid indicating time lapsed since activation. - View Dependent Claims (17)
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18. A method for determining the remaining shelf-life of a dental composition comprising:
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providing a container including activatable time sensitive marking means disposed on or within the container, wherein upon activation, the time sensitive marking means identifies time lapsed since activation of the time sensitive marking means;
providing a dental composition within the container having a given shelf-life;
activating the time sensitive marking means disposed on or within the container;
identifying whether the given shelf-life of the dental composition is greater than or less than the time lapsed since activation of the time sensitive marking means. - View Dependent Claims (19, 20, 21, 22)
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Specification