Wristband reader apparatus for human-implanted radio frequency identification device
US7385498B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2006 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/076
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A reader apparatus for an RFID-implanted human user is incorporated into a wristband such as a bracelet or a watchstrap worn by the user. The RFID device is subcutaneously implanted in the vicinity of the user's wrist, ensuring close proximity of the reader apparatus to the RFID device to support reliable near-field RF communications at low power levels. The wristband includes a reader coil having a plurality of turns, a reader circuit, and a rechargeable battery for powering the reader circuit. The same reader coil is used to simplify recharging of the battery by inductively coupling the reader coil to a charging coil disposed in a small charging stand or storage case. In watch strap applications, the reader circuitry and battery are disposed in a watch case affixed to the strap, and the watch case includes an alphanumeric display for communicating information from the RFID device to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.