Patent ID: 8010206

Claim:
An inductive assembly adapted to be coupled with an implant on a human or animal body and to be located externally to the implant, the assembly comprising: a first inductor, the first inductor defining a first area inside the first inductor and a second area outside the first inductor; a second inductor located proximate to the first inductor, the second inductor having a symmetrical shape comprised of a first second inductor region and a second second inductor region, the first second inductor region defining a third area inside the first second inductor region, the second second inductor region defining a fourth area inside the second second inductor region, wherein intersection between the first area and the third area as seen from above the first inductor and the second inductor defines a first magnetic flux region passing through the first inductor and the second inductor, intersection between the first area and the fourth area as seen from above the first inductor and the second inductor defines a second magnetic flux region passing through the first inductor and the second inductor, intersection between the second area and the third area as seen from above the first inductor and the second inductor defines a third magnetic flux region passing through the first inductor and the second inductor, intersection between the second area and the fourth area as seen from above the first inductor and the second inductor defines a fourth magnetic flux region passing through the first inductor and the second inductor, and wherein, during operation of the inductive assembly, the first inductor is configured to create a magnetic field distributed in such a way that magnetic flux intensity through the first magnetic flux region is substantially equal and opposite to magnetic flux intensity through the third magnetic flux region and magnetic flux intensity through the second magnetic flux region is substantially equal and opposite to magnetic flux intensity through the fourth magnetic flux region.