The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Nov. 13, 2012
Koninklijke Philips N.v., Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The present invention relates to an apparatus and a method for influencing and/or detecting magnetic particles in a field of view (), in particular for examination of human patients. The apparatus comprises i) selection-and-focus means () for generating a magnetic selection-and-focus field (), wherein said at least one set of selection-and-focus field coils comprises—at least one inner selection-and-focus field coil () being formed as a closed loop about an inner coil axis (), first inner selection-and-focus field coil ()—a group of at least two outer selection-and-focus field coils (-) arranged at a larger distance from said inner coil axis () than said at least one inner selection-and-focus field coil () and at different angular positions, each being formed as a closed loop about an associated outer coil axis (-), and ii) drive means () comprising a drive field signal generator unit () and drive field coils () for changing the position in space and/or size of the two sub-zones () in the field of view () by means of a magnetic drive field so that the magnetization of the magnetic material changes locally.