发明名称 |
POSITION DETECTING DEVICE, MEDICAL DEVICE INDUCTION SYSTEM, POSITION DETECTING METHOD, AND MEDICAL DEVICE INDUCTION METHOD |
摘要 |
It is possible to dispose a magnetic-field detecting unit in proximity to a detected object, so that the position of the detected object is detected precisely, while reducing the size and cost of the device. Provided is a position detecting device (1) comprising a first magnetic-field generating unit (2) that includes at least one magnetic-field generating coil and that generates a first magnetic field in a detection space (S) where a detected object (3) provided with a circuit including at least one built-in coil (3a) is disposed; a magnetic-field detecting unit (4) having a plurality of detecting coils (4a) arrayed to detect an induced magnetic field generated from the built-in coil (3a) by the generated first magnetic field; and a second magnetic-field generating unit (6) that includes at least one magnetic-field generating coil, that generates a second magnetic field, and that includes a magnetic-field component having a phase substantially opposite to the first magnetic field generated by the first magnetic-field generating unit (2) and entering the detecting coils (4a), wherein the first magnetic-field generating unit (2) and the detecting coils (4a) are disposed so that a generating direction of the first magnetic field and a detecting direction of the induced magnetic field intersect each other. |
申请公布号 |
EP2163182(A1) |
申请公布日期 |
2010.03.17 |
申请号 |
EP20080740641 |
申请日期 |
2008.04.18 |
申请人 |
OLYMPUS MEDICAL SYSTEMS CORP. |
发明人 |
CHIBA, ATSUSHI;UCHIYAMA, AKIO;KIMURA, ATSUSHI;SATO, RYOJI |
分类号 |
A61B1/00;A61B1/04;A61B5/06;G01B7/00 |
主分类号 |
A61B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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