Annular antenna
US10828181B2 · kind B2 · utility
1Cited by
258References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2016 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Nov 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2001/0585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus and methods are described for use with a blood vessel of a subject. An annular antenna is placed inside the blood vessel such that radial expansion of the antenna is limited by a circumference of the blood vessel. A transmitter generates an inductive current in the antenna, by transmitting RF energy toward the antenna. A control unit measures the inductive current in the antenna, and, in response thereto, determines a physiological parameter of the subject. Other applications are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.