发明授权
- 专利标题： Position detecting device having opposite-phase magnetic-field generating coil, medical device guiding system, position detecting method, and medical device guiding method
- 专利标题（中）： 位置检测装置具有反相磁场产生线圈，医疗装置引导系统，位置检测方法和医疗装置引导方法
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申请号： US12595400申请日： 2008-04-18
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公开(公告)号： US08446147B2公开(公告)日： 2013-05-21
- 发明人: Atsushi Chiba , Akio Uchiyama , Atsushi Kimura , Ryoji Sato
- 申请人： Atsushi Chiba , Akio Uchiyama , Atsushi Kimura , Ryoji Sato
- 申请人地址： JP Tokyo
- 专利权人： Olympus Medical Systems Corp.
- 当前专利权人： Olympus Medical Systems Corp.
- 当前专利权人地址： JP Tokyo
- 代理机构： Scully, Scott, Murphy & Presser, P.C.
- 优先权： JP2007-118133 20070427
- 国际申请： PCT/JP2008/057586 WO 20080418
- 国际公布： WO2008/136281 WO 20081113
- 主分类号： G01B7/14
- IPC分类号： G01B7/14 ; A61B5/05
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.
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