Pouch with incorporated loss of integrity indicator, method for making such a bag, and method for using same
US10112764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2015 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pouch includes: a first closed, inner casing, made of at least one non-porous plastic material with a high-capacity gas barrier, delimiting a first space, forming a pouch stricto sensu for accommodating a biopharmaceutical product or device, a second closed, outer casing, made of at least one non-porous plastic material with a high-capacity gas barrier, delimiting a second space in which the pouch stricto sensu is located, spacer elements, at least one selected tracer gas, located in the first or second space outside of the pouch stricto sensu, with a higher partial pressure than in the second space outside of the pouch stricto sensu or in the first space, at least one colorimetric detector located, respectively, in the second space outside of the pouch stricto sensu or in the first space responsive to the concentration of the tracer gas, by switching from a first color to a second different color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.