Locator system for implanted access port with RFID tag
US7727143B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Oct 30, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3523
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An access port locator system for adjustable gastric bands. The system includes an access port with an RFID tag with its antenna adjacent to the receiving portion of the port. The system includes a locator with radio frequency transmitter/receiver circuitry for sending read or interrogation signals to the RFID tag and for sending write signals to the tag to write treatment data to memory of the RFID tag. The locator also includes an antenna array with four patch antenna arranged in pairs to model two monopulse radar antenna systems. The locator also includes processor(s) and logic modules/circuitry for processing the tag response signals received by the antenna array to determine location information for the RFID tag and associated port, i.e., to identify the center of the port relative to the antennae array or array face such as with strength and direction information relative to the array face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.