Seymour H Levitt

US Patent:

20070225596, Sep 27, 2007

Filed:

May 3, 2005

Appl. No.:

11/578704

Inventors:

Roman Iustin - Molndal, SE
Sten Nilsson - Uppsala, SE
Bengt Rosengren - Hovas, SE
Johan Linder - Goteborg, SE
Erik Isberg - Ellos, SE
Tomas Gustafsson - Molndal, SE
Bo Lennernas - Uddevalla, SE
Seymour Levitt - Edina MN, US

Assignee:

Micropos Medical AB - Goteborg

International Classification:

A61B 5/05

US Classification:

600424000, 600407000

Abstract:

The present invention relates to an implant () fixable relative to a target area () within a living body (), comprising a transmitter () arranged to emit an electromagnetic signal, wherein said electromagnetic signal is adapted to propagate with a wavelength in said living body () so that a phase difference of said electromagnetic signal in at least three positions, preferably four, separated by a known distance (b) is detectable by a receiver () for tracking variations of a position (p) of the implant () relative to said receiver (). Further, the present invention relates to an apparatus (), a system and a method for tracking a position (p) of a transmitter (). Additionally, the invention relates to the use of such a method for treatment of a target area () in a living body () by means of a radiation therapy treatment arrangement ().