Patent · US Expired

Packaging systems for peracid sterilization processes

US5620656A · kind A · utility

67Cited by
35References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 4, 1995
Grant dateApr 15, 1997
Priority date—
Expiry dateDec 4, 2015

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12Q1/22
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Devices useful to monitor whether or not an article has been exposed to sterilizing conditions are provided and comprise a package and an indicator associated with the package. The package is sufficiently permeable to admit sterilizing gas or vapor into the package. The indicator associated with the package changes color from a first color (indicating ambient conditions) to a second color (indicating exposure to acidic gas or vapor). Both the first and second colors of the indicator are stable and preferably substantially maintain their colors under ambient conditions. Particularly, preferred embodiments are adapted for use with peracetic acid sterilization processes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.