Piezo-electric content use monitoring system
US7178417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Apr 23, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2203/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A content use monitoring system is provided for monitoring use of blister packaged contents. The monitoring device comprises an integrated circuit (14), battery (16) and piezo-electric foil (18) or other transducer that can be attached to a existing blister package, in physical contact with their backing, via adhesive. When a content is expelled from a blister through the backing, the piezo-electric foil (18) or other transducer is deformed, generating an electrical signal. The integrated circuit (14) monitors the piezo-electric foil circuit for such signals, analyses them, and if they meet the programmed specifications, the time and other characteristics of the event are recorded in the integrated circuit's memory. The content use data can later be downloaded for analysis, education or clinical purposes via either a remote or contact reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.