Micro-mechanical adjustment system for piezoelectric transducers
US10856837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2016 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Jul 23, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/5207
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for detecting blood velocity within a blood vessel includes a transducer array including a plurality of transducers. Each of the transducers includes a carrier substrate, at least one spacer extending upwardly from the substrate, a transducer element attached to the spacer such that the piezoelectric transducer is spaced apart from the substrate, and setting electrodes positioned on the upper surface of the substrate under the piezoelectric transducer. The system also includes a tilt control system that is configured to apply a bias voltage to the setting electrodes which causes the transducer element to pivot about a pivot axis between a first tilted position and a second tilted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.