Apparatus for measuring bio-magnetic fields
US6681131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2001 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Aug 10, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7285
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for measuring bio-magnetic fields includes a plurality of magnetometers for detecting magnetic fields generated from a live body; a driving circuit for driving the magnetometers; a computer for collecting output signals of the driving circuit in the form of data representing at least one waveform of the magnetic fields generated from the live body and for performing an arithmetic processing on the data representing the waveform of magnetic fields, a display unit, and at least one signal processing circuit for processing output signals of the driving circuit. The computer further performs an arithmetic processing of first-order differentiation on the waveform of the magnetic fields in a z direction with respect to time in order to create an arrow map and a contour map. The apparatus can also detect mechanical movement which occurs as blood flows in organs and organs move.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.