Wireless sensor for measuring pressure
US11103146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4913
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable wireless sensor is provided that comprises a plurality of substrates joined together to form a body with a hermetically sealed cavity therein. A capacitor (C) is provided within the cavity. A first capacitor plate is formed on an internal surface of the first substrate. An inductor (L) is provided within the cavity and coupled to form an LC resonant circuit. At least a portion of the first substrate comprises a deflectable region mechanically coupled to the first capacitor plate. The deflectable region is configured to deflect in response to changes in pressure in the artery altering a spacing between the capacitor plates and altering a resonant frequency of the LC resonant circuit. First and second anchoring elements are coupled to the body and include flexible wire loops configured to extend outward from the body to lodge within a lumen of the artery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.