Multi-stage color activated system to detect unauthorized processing of medical devices
US8432279B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0814
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical device (101), such as a blood pressure cuff or other device, includes an unauthorized reprocessing warning (406) printed in a first printable media (103). The first printable media (103) is configured to change from a first state to a second state upon exposure to an applied stimulus (203). A mask (407) is printed on or about the unauthorized reprocessing warning (406) in a second printable media (106). The second printable media (106) is configured to also change state upon exposure to an applied stimulus (203). The unauthorized reprocessing warning (406) is legible only after exposure to the applied stimulus (203). However, application of a reversion stimulus 306 will render the unauthorized reprocessing warning (406) non-legible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.