发明名称 |
Biomagnetic measurement apparatus |
摘要 |
A biomagnetic measurement technique which can obtain a potential waveform corresponding to a ventricular muscle cell action potential in a non-invasive manner. The biomagnetic measurement apparatus including an operating circuit for magnetometer. The output data of the operating circuit for the magnetometer is collected and a current vector at time t is calculated. Further, an absolute value Ixy of the current vector, a potential waveform V (t) in time corresponding to depolarization of a heart from the absolute value of the current vector, and a potential waveform V (t) in a refractory period of the heart to a period corresponding to repolarization from the absolute value of the current vector are calculated.
|
申请公布号 |
US7400984(B2) |
申请公布日期 |
2008.07.15 |
申请号 |
US20040822715 |
申请日期 |
2004.04.13 |
申请人 |
HITACHI HIGH-TECHNOLOGIES, CORP. |
发明人 |
KANDORI AKIHIKO;TSUKADA KEIJI;MIYASHITA TSUYOSHI;OGATA KUNIOMI |
分类号 |
G01R33/02;A61B5/04;A61B5/05;G01R33/035 |
主分类号 |
G01R33/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|