WO2007009103A2 - Dispositif d'indication de stimulus utilisant des gels polymeres - Google Patents

Dispositif d'indication de stimulus utilisant des gels polymeres Download PDF

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Publication number
WO2007009103A2
WO2007009103A2 PCT/US2006/027564 US2006027564W WO2007009103A2 WO 2007009103 A2 WO2007009103 A2 WO 2007009103A2 US 2006027564 W US2006027564 W US 2006027564W WO 2007009103 A2 WO2007009103 A2 WO 2007009103A2
Authority
WO
WIPO (PCT)
Prior art keywords
stimulus
compartment
indicating device
gel
predetermined
Prior art date
Application number
PCT/US2006/027564
Other languages
English (en)
Other versions
WO2007009103A3 (fr
Inventor
Rel S. Ambrozy
Jade Litcher
Raymond C. Jones
Original Assignee
Prasidiux, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/414,254 external-priority patent/US9063015B2/en
Application filed by Prasidiux, Llc filed Critical Prasidiux, Llc
Priority to EP06787468A priority Critical patent/EP1915649A4/fr
Publication of WO2007009103A2 publication Critical patent/WO2007009103A2/fr
Publication of WO2007009103A3 publication Critical patent/WO2007009103A3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/04—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity
    • G04F1/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time

Definitions

  • a malaria vaccine will degrade faster below 2°C than if stored between the range of 3 0 C to 7°C.
  • Stimulus perishable products susceptible to degradation due to cumulative time- stimulus exposure include, but are not limited to, food, food additives, chemicals, biological materials, drugs, cosmetics, photographic supplies and vaccines.
  • Many manufacturers mark their products with printed expiration dates in an attempt to provide an indication of when the 5 useful life of a perishable product lapses. However, these dates are only estimates and may be unreliable because they are based on assumptions about the stimulus history of the product that may not be true with respect to the particular unit or product in the package on which the expiration date appears.
  • one embodiment of the invention is a device including a first compartment and a second compartment separated by a semi-permeable membrane, with the first compartment containing a stimulus sensitive gel.
  • a display portion is provided through which a color change can be seen when the stimulus sensitive gel changes volume by shrinking in reaction to a predetermined stimulus. As the gel shrinks in response to the predetermined stimulus, a liquid within the stimulus sensitive gel is expelled in the first compartment, and passes into the second compartment though the semi-permeable membrane that separates the two compartments.
  • another embodiment of the invention is a device that indicates when a stimulus sensitive product has potentially or conclusively undergone a physical change in response to exposure to a predetermined stimulus extreme over a predetermined period of time.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

L'invention concerne un dispositif d'indication de stimulus. L'invention concerne plus particulièrement un appareil et un procédé permettant de mettre en évidence l'exposition d'un produit à un stimulus désigné pendant une certaine durée.
PCT/US2006/027564 2005-07-14 2006-07-14 Dispositif d'indication de stimulus utilisant des gels polymeres WO2007009103A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06787468A EP1915649A4 (fr) 2005-07-14 2006-07-14 Dispositif d'indication de stimulus utilisant des gels polymeres

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US69898405P 2005-07-14 2005-07-14
US60/698,984 2005-07-14
US11/414,254 US9063015B2 (en) 2005-04-29 2006-05-01 Stimulus indication employing polymer gels
US11/414,254 2006-05-01

Publications (2)

Publication Number Publication Date
WO2007009103A2 true WO2007009103A2 (fr) 2007-01-18
WO2007009103A3 WO2007009103A3 (fr) 2007-07-12

Family

ID=37638005

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/027564 WO2007009103A2 (fr) 2005-07-14 2006-07-14 Dispositif d'indication de stimulus utilisant des gels polymeres

Country Status (2)

Country Link
EP (1) EP1915649A4 (fr)
WO (1) WO2007009103A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11398167B2 (en) 2016-07-11 2022-07-26 Intray Ltd. Time temperature indicator label

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741523B1 (en) * 2000-05-15 2004-05-25 3M Innovative Properties Company Microstructured time dependent indicators
US6614728B2 (en) * 2001-09-14 2003-09-02 3M Innovative Properties Company Time-temperature integrating indicator
EP1490734B1 (fr) * 2002-04-03 2009-06-24 3M Innovative Properties Company Articles indicateurs de temps ou de temps-temperature
GB2397022A (en) * 2003-01-11 2004-07-14 Reckitt Benckiser Air freshener with an end-of-life indicator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of EP1915649A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11398167B2 (en) 2016-07-11 2022-07-26 Intray Ltd. Time temperature indicator label

Also Published As

Publication number Publication date
EP1915649A4 (fr) 2009-06-24
WO2007009103A3 (fr) 2007-07-12
EP1915649A2 (fr) 2008-04-30

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