BIOMAGNETISM MEASURING DEVICE

PROBLEM TO BE SOLVED: To provide a biomagnetism measuring device to monitor the movement of blood and the tissue of the heart simultaneously when the movement of a cardiac muscle is monitored. SOLUTION: In a biomagnetism measuring device which has a superconducting quantum interference element (SQUI...

Full description

Saved in:
Bibliographic Details
Main Authors TSUKADA KEIJI, KANDORI AKIHIKO, SASABUCHI HITOSHI
Format Patent
LanguageEnglish
Published 13.04.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
DIAGNOSIS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SEMICONDUCTOR DEVICES
SURGERY
TESTING
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a biomagnetism measuring device to monitor the movement of blood and the tissue of the heart simultaneously when the movement of a cardiac muscle is monitored. SOLUTION: In a biomagnetism measuring device which has a superconducting quantum interference element (SQUID) 4 having a detecting coil 3 to detect a magnetic field generated from a subject 1, a cryostat 2 to hold the SQUID at a low temperature and fluxmeter operating circuits 5, 6, 7 and 8 and measures the magnetic field generated from the subject, the device has an oscillator 10 to flow an alternating current to the examinee by impressing the alternating current having a first frequency on electrodes 12 and 13 arranged on the body surface of the subject, a means to synchronously detect output from the fluxmeter operating circuits by a synchronizing signal 11 from the oscillator and a display means to display a measured result, and a first magnetic field signal (a variation in a magnetic field generated when a feeble electric current flows) is obtained from the synchronously detecting means. Therefore, a variation in a feeble alternating electric current caused by a movement of blood and the tissue of the heart can be two-dimensionally detected, and can be converted into an image.
Bibliography:Application Number: JP19970265446