Implantable device for sensing intravascular pressure
US11324409B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Nov 2, 2017 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Nov 16, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable device for sensing intravascular pressure, the device comprising a bulk acoustic wave (BAW) resonator arranged to be deflected by changes in intravascular fluid pressure to provide a pressure dependent sensing signal and an acoustic reflector arranged to separate the BAW resonator from the intravascular fluid and to mediate pressure from the intravascular fluid to the BAW resonator wherein the acoustic reflector comprises a layer structure arranged to provide a series of transitions in acoustic impedance between the intravascular fluid and the BAW resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.