Implantable surface acoustic wave devices for long term clinical monitoring
USRE47681E1 · kind E1 · reissue
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9Claims
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Key dates
| Filing date | Jul 1, 2016 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Jul 1, 2036 |
Classification
- Technology area (CPC —)General
Abstract
A surface or bulk acoustic wave device can be implanted in or worn on a human or animal body to monitor various parameters thereof. The device comprises a pair of interdigitated transducers spaced apart over the surface of a piezo-electric substrate that is exposed to the parameter to be monitored. The device is interrogated by a radio-frequency signal being supplied to one of the transducers and detected after reflection by the other transducer. The parameter is measured by comparison of the supplied and received signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.