BIOMAGNETIC FIELD MEASURING INSTRUMENT

• Main Authors: TSUKADA KEIJI, KANDORI AKIHIKO, MIYASHITA TAKESHI, SASABUCHI HITOSHI, SUZUKI HIROYUKI
• Format: Patent
• Language: English
• Published: 12.02.2004
• Edition: 7
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To provide a biomagnetic field measuring instrument of excellent operability capable of automatically setting the reference time of magnetic field waveform. SOLUTION: This biomagnetic field measuring instrument is provided with a plurality of magnetic sensors for measuring the magnetic field generated from the heart of an organism, a computer for processing measured magnetic field waveform, and a display means for displaying processing performed by the computer. The computer acquires the measured magnetic field waveform from time t1to time t2predetermined over QRS wave by going back to predetermined time (toff) from the reference time obtained by setting as a reference the time when the rising part of QRS wave of systole of heart coincides with the threshold value, the time when the falling part of QRS wave coincides with the threshold value, or the peak position time of QRS wave out of the measured magnetic field waveform, on channels corresponding to the respective magnetic sensors, acquires an equivalent propagation time chart connecting equivalent points of propagation time from the time t1to the time of peak position of QRS wave, and displays the equivalent propagation time chart on the display means. COPYRIGHT: (C)2004,JPO