Docking system with inductive powering for capsule camera

A capsule endoscopic system, which retrieves data over wireless communication from a capsule device that comprises:

• a battery;
• a signal source used in the wireless communication;
• a secondary coil which, in the presence of an alternating magnetic field, provides a current to power the signal source;
• and
• a capsule housing adapted to be swallowable and to enclose the battery, the signal source and the secondary coil in a sealed environment, the capsule housing having, along a longitudinal axis, a first end enclosing the battery and a second end enclosing the signal source and the secondary coil;
• the docking endoscopic system comprising a docking device, which comprises:
• a receptacle for securing the capsule device in a docked position;
• a primary coil for generating the alternating magnetic field;
• and
• a primary core configured as a shell that encloses the primary coil to concentrate the alternating magnetic field in a first zone that is within the shell and to reduce the alternating magnetic field in a second zone that is outside the shell, the primary core being configured with an opening into which the receptacle is placed, such that, when the capsule device is secured in the receptacle in the docked position, the first end of the capsule device is positioned to locate the battery in the second zone and the second end of the capsule device is positioned to locate the secondary coil in the first zone, thereby reducing the alternating magnetic field on the battery.