发明名称 |
POSITION DETECTION SYSTEM, MEDICAL-DEVICE GUIDANCE SYSTEM, AND POSITION DETECTION METHOD |
摘要 |
There is provided a position detection system (1) including a first marker (4) that produces a first alternating magnetic field having a first position-calculating frequency by means of an external power supply; a second marker (3) including a magnetic induction coil (5) having a resonance frequency equal to the position-calculating frequency; a magnetic-field detection section (13) that is disposed outside a working region of the second marker (3) and that detects a magnetic field at the first position-calculating frequency; an extracting section (24) that extracts, from the detected magnetic field, a first detection-magnetic-field component having the first position-calculating frequency and having the same phase as the phase of the first alternating magnetic field; and a position/orientation analyzing section (22) that calculates at least one of the position and the orientation of the first marker (4) based on the intensity of the extracted first detection-magnetic-field component.
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申请公布号 |
US2010073185(A1) |
申请公布日期 |
2010.03.25 |
申请号 |
US20070443605 |
申请日期 |
2007.11.27 |
申请人 |
OLYMPUS CORPORATION |
发明人 |
UCHIYAMA AKIO;SATO RYOJI;KIMURA ATSUSHI |
分类号 |
G08B21/00 |
主分类号 |
G08B21/00 |
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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