Title:
MAGNETOCARDIOGRAPHIC MEASUREMENT APPARATUS
Document Type and Number:
Japanese Patent JP2020156870
Kind Code:
A
Abstract:
To provide a magnetocardiographic measurement apparatus capable of measuring cardiac magnetic fields with higher accuracy.SOLUTION: The magnetocardiographic measurement apparatus comprises: a magnetic sensor array 210 composed by three-dimensionally arranging a plurality of magnetic sensor cells 220, each of which can detect an input magnetic field in the respective axial direction of three axes; a measurement data acquisition unit that acquires measurement values based on input magnetic fields, including cardiac magnetic fields generated by the electrical activity of the heart; a gradient magnetic field calculation unit 940 that calculates gradient magnetic fields using a plurality of measurements between a plurality of magnetic sensor cells; and a signal space separation unit 960 that separates the spatial distribution of the input magnetic fields into cardiac magnetic fields and environmental magnetic fields using the gradient magnetic fields.SELECTED DRAWING: Figure 9
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Inventors:
OKATAKE SHIGEKI
NAKAMURA TAKENOBU
KATAOKA MAKOTO
NAKAMURA TAKENOBU
KATAOKA MAKOTO
Application Number:
JP2019061016A
Publication Date:
October 01, 2020
Filing Date:
March 27, 2019
Export Citation:
Assignee:
ASAHI KASEI DENSHI KK
International Classes:
A61B5/05; G01R33/02; G01R33/09; G01R35/00
Domestic Patent References:
| JP2019045496A | 2019-03-22 | |||
| JP2018007821A | 2018-01-18 | |||
| JP2013533782A | 2013-08-29 | |||
| JP2017191040A | 2017-10-19 |
Foreign References:
| US20110313274A1 | 2011-12-22 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation