Patent ID: 9008749
Filing Date: 2015-04-14
Classification: A61B

Abstract:
1. An apparatus for influencing and/or detecting magnetic particles in a field of view, which apparatus comprises: i) two or more transmit coil sets, wherein neighboring transmit coil sets are partially overlapping, each transmit coil set comprising: ii) generator means for generating current signals for provision to said selection field coils and said drive field coils for generating desired magnetic fields by said coils, and iii) control means for controlling said generator means to generate direct currents of opposite directions for provision to the two selection field coils of said pair of selection field coils and alternate currents of opposite directions for provision to the two drive field coils of said at least one pair of drive field coils wherein the control means is configured to control said generator means to generate currents for provision to the coils of the transmit coil sets such that for transfer of the first sub-zone from a first transmit coil set to a second transmit coil set the first sub-zone is driven to the border of the field of view of the first transmit coil set, the magnetic selection field of the first transmit coil set is decreased and the magnetic selection field of the second transmit coil set is increased.