Position detecting device having opposite-phase magnetic-field generating coil, medical device guiding system, position detecting method, and medical device guiding method
Atsushi Chiba,Akio Uchiyama,Atsushi Kimura,Ryoji Sato
申请号：
US12595400
公开号：
US08446147B2
申请日:
2008.04.18
申请国别(地区):
US
年份:
2013
代理人:
摘要：
Provided is a position detecting device including a first magnetic-field generating unit including at least one magnetic-field generating coil and that generates a first magnetic field in a detection space where a detected object provided with a circuit including at least one built-in coil is disposed a magnetic-field detecting unit having a plurality of detecting coils arrayed to detect an induced magnetic field generated from the built-in coil by the generated first magnetic field and a second magnetic-field generating unit including at least one magnetic-field generating coil, that generates a second magnetic field, and including a magnetic-field component having a phase substantially opposite to the first magnetic field and entering the detecting coils, wherein the first magnetic-field generating unit and the detecting coils are disposed so that a generating direction of the first magnetic field and a detecting direction of the induced magnetic field intersect each other.
