发明名称 |
Biomagnetic field measuring method and apparatus |
摘要 |
A biomagnetic field measuring apparatus has a plurality of fluxmeters disposed externally of a living body and each including a superconducting quantum interference device (SQUID) for detecting a biomagnetic field generated from the living body, the plurality of fluxmeters being operative to detect a temporal change of a component of the biomagnetic field in a first direction which is vertical to the surface of the living body, an operation processor for performing computation for determining a temporal change of a value proportional to a root of square sum of differential value of the first-direction magnetic field component in second and third directions which cross the first direction and computation for integrating the temporal change of the value over a predetermined interval to determine an integral value, and a display for displaying the determined integral value. Distribution of magnetic fields generated from the heart is determined with a small number of fluxmeters.
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申请公布号 |
US2002173714(A1) |
申请公布日期 |
2002.11.21 |
申请号 |
US20020189010 |
申请日期 |
2002.07.05 |
申请人 |
HITACHI, LTD. |
发明人 |
TSUKADA KEIJI;KANDORI AKIHIKO;OKAJIMA KENICHI;SASABUCHI HITOSHI;SUZUKI HIROYUKI;KONDO SHOJI;KOMIYAMA YASUAKI |
分类号 |
A61B5/04;G01R33/035;G01R33/10;(IPC1-7):A61B5/05 |
主分类号 |
A61B5/04 |
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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