Title:
BIOLOGICAL MAGNETIC FIELD MEASUREMENT EQUIPMENT
Document Type and Number:
Japanese Patent JP3518495
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide biological magnetic field measurement equipment with easy operation.
SOLUTION: This equipment is provided with plural number of magnetic sensor for measuring magnetic field generated from the heart of biological body, a computer that processes measured magnetic field wave forms and means to display the processing by the computer. The computer calculates the measured magnetic field wave forms between the time t1 and the time t2 that are predetermined over the QRS wave by going back to predetermined time (tOFF) by setting as a reference the time when the rising of the QRS wave of systole of heart coincides with the threshold value, or when the downward part of the QRS wave coincides with the threshold value, determines equivalent propagation-time chart connecting equivalent points of propagation time between time t1 to the time of peak position of QRS wave and display the equivalent propagation-time chart on display means. The reference time of magnetic field wave forms is automatically set.
Inventors:
Kandori, Akihiko
Miyashita, Takeshi
Tsukada, Keiji
Sasabuchi, Hitoshi
Suzuki, Hiroyuki
Miyashita, Takeshi
Tsukada, Keiji
Sasabuchi, Hitoshi
Suzuki, Hiroyuki
Application Number:
JP2000247911A
Publication Date:
April 12, 2004
Filing Date:
March 19, 1999
Export Citation:
Assignee:
HITACHI LTD
International Classes:
A61B5/05; G01R33/02; G01R33/035; (IPC1-7): A61B5/05
Attorney, Agent or Firm:
作田 康夫
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