Biomagnetic measurement apparatus
US7400984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jun 10, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/243
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.