JPS6470030A - Method and apparatus for monitoring anesthetic depth - Google Patents

Method and apparatus for monitoring anesthetic depth

Info

Publication number
JPS6470030A
JPS6470030A JP62228166A JP22816687A JPS6470030A JP S6470030 A JPS6470030 A JP S6470030A JP 62228166 A JP62228166 A JP 62228166A JP 22816687 A JP22816687 A JP 22816687A JP S6470030 A JPS6470030 A JP S6470030A
Authority
JP
Japan
Prior art keywords
signal
fluctuation
256sec
nervous system
autonomic nervous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62228166A
Other languages
Japanese (ja)
Other versions
JPH0367410B2 (en
Inventor
Toru Komatsu
Tomomasa Kimura
Yasuhiro Shimada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minato Medical Science Co Ltd
Original Assignee
Minato Medical Science Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minato Medical Science Co Ltd filed Critical Minato Medical Science Co Ltd
Priority to JP62228166A priority Critical patent/JPS6470030A/en
Publication of JPS6470030A publication Critical patent/JPS6470030A/en
Publication of JPH0367410B2 publication Critical patent/JPH0367410B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

PURPOSE:To calculate the fluctuation of an autonomic nervous system, by measuring only fluctuation of 0.02-0.5Hz when the fluctuation of living body data receiving variation by the effect of the autonomic nervous system is measured to monitor the effect of anesthesia. CONSTITUTION:A high-pass filter 5 of 0.02Hz for cutting a Dc component cuts the part low in fluctuation frequency of a signal and a low-pass filter 6 of 0.5Hz cuts a high frequency component equal to or more than the fluctuation frequency of an autonomic nervous system. An A/D converter 7 converts an analogue signal to a digital signal which is, in turn, stored in a digital memory 8. The digital memory 8 always stores a 256sec signal and the old signal is erased when a new signal is inputted to said memory 8. That is, the signals up to 256sec before the present time are stored. An FFT processor 9 takes in the data of the digital memory 8 at a proper timing interval of 10-60sec and the fluctuation/power spectrum analysis of the 256sec-signal is performed. This analytical result is displayed on a display device 10 as a trend graph.
JP62228166A 1987-09-11 1987-09-11 Method and apparatus for monitoring anesthetic depth Granted JPS6470030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62228166A JPS6470030A (en) 1987-09-11 1987-09-11 Method and apparatus for monitoring anesthetic depth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62228166A JPS6470030A (en) 1987-09-11 1987-09-11 Method and apparatus for monitoring anesthetic depth

Publications (2)

Publication Number Publication Date
JPS6470030A true JPS6470030A (en) 1989-03-15
JPH0367410B2 JPH0367410B2 (en) 1991-10-22

Family

ID=16872264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62228166A Granted JPS6470030A (en) 1987-09-11 1987-09-11 Method and apparatus for monitoring anesthetic depth

Country Status (1)

Country Link
JP (1) JPS6470030A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731595A (en) * 1993-07-23 1995-02-03 Kao Corp Blood flow measuring device and method
JP2002191572A (en) * 2000-12-26 2002-07-09 Railway Technical Res Inst Motion sickness onset detection system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996038087A1 (en) * 1995-06-02 1996-12-05 Colin Corporation Anesthetic depth detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103624A (en) * 1980-10-28 1982-06-28 Maachin Ebanzu Jiyon Patient monitor apparatus
JPS58133233A (en) * 1982-01-29 1983-08-08 インストルメンタリウム・オサケイ−テイエ− Apparatus for monitoring and recording state of patient under anesthesia

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103624A (en) * 1980-10-28 1982-06-28 Maachin Ebanzu Jiyon Patient monitor apparatus
JPS58133233A (en) * 1982-01-29 1983-08-08 インストルメンタリウム・オサケイ−テイエ− Apparatus for monitoring and recording state of patient under anesthesia

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731595A (en) * 1993-07-23 1995-02-03 Kao Corp Blood flow measuring device and method
JP2002191572A (en) * 2000-12-26 2002-07-09 Railway Technical Res Inst Motion sickness onset detection system

Also Published As

Publication number Publication date
JPH0367410B2 (en) 1991-10-22

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees