MEDICAL DEVICE INDUCING SYSTEM, MEDICAL DEVICE INDUCING METHOD, AND METHOD FOR CREATING LOOK-UP TABLE TO BE USED IN THE MEDICAL DEVICE INDUCING SYSTEM

摘要

Intended is to perform such a precise position detection at a high speed and in a small quantity of calculation as is not influenced by the unnecessary magnetic field which is generated by an inducing coil or the like arranged around the position detecting range of a capsule type medical device. An inducing coil (21), which is arranged around the position detecting range of a medical device (10) at a position detecting time, calculates an unneeded second magnetic field, which is induced and generated at the positions of magnetic field sensors (411 to 41n) by the action of a first magnetic field generated by a magnetic field generating unit (30), and subtracts the second magnetic field from a first magnetic field detected by the magnetic field sensors (411 to 41n), thereby to calculate the corrected magnetic field information, so that the precise position detection can be made without being influenced by the second magnetic field. The second magnetic field is calculated by using LUTs (52x, 52y and 52z), which are stored in advance with numerical information having a correlation to the second magnetic field induced and generated at the positions of the magnetic field sensors (411 to 41n), so that the calculation quantity at each time can be reduced to process the position detection at a high speed.