Methods for detecting leaks for pharmaceutical packages such as parenteral packages and bulk pharmaceutical bags
US10444109B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for leak detection of a packaged sealed product according to the steps: feeding liquid nitrogen to a vaporizer thereby forming gaseous nitrogen; mixing the gaseous nitrogen with multifunctional particles; feeding the mixture of gaseous nitrogen and multifunctional particles to a chamber wherein a packaged sealed product is present in the chamber; and transmitting a signal when the multifunctional particles contact a component leaking from the packaged sealed product. Typically, the packaged sealed product is a pharmaceutical or other medicinal product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.