JPH0543377B2 - - Google Patents
Info
- Publication number
- JPH0543377B2 JPH0543377B2 JP1256836A JP25683689A JPH0543377B2 JP H0543377 B2 JPH0543377 B2 JP H0543377B2 JP 1256836 A JP1256836 A JP 1256836A JP 25683689 A JP25683689 A JP 25683689A JP H0543377 B2 JPH0543377 B2 JP H0543377B2
- Authority
- JP
- Japan
- Prior art keywords
- impedance
- brain
- electrodes
- changes
- brain function
- 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.)
- Expired - Lifetime
Links
- 230000003925 brain function Effects 0.000 claims description 23
- 230000008859 change Effects 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 210000004556 brain Anatomy 0.000 claims description 10
- 238000012935 Averaging Methods 0.000 claims description 6
- 210000004761 scalp Anatomy 0.000 claims description 6
- 210000003128 head Anatomy 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000002847 impedance measurement Methods 0.000 claims description 4
- 230000017531 blood circulation Effects 0.000 claims description 3
- 210000001061 forehead Anatomy 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
- 230000003727 cerebral blood flow Effects 0.000 description 9
- 230000007177 brain activity Effects 0.000 description 5
- 206010041349 Somnolence Diseases 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 210000004958 brain cell Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008717 functional decline Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000014644 Brain disease Diseases 0.000 description 1
- 206010061751 Cerebrovascular stenosis Diseases 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 206010047513 Vision blurred Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1256836A JPH03118038A (ja) | 1989-09-29 | 1989-09-29 | 簡易型脳機能変化測定装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1256836A JPH03118038A (ja) | 1989-09-29 | 1989-09-29 | 簡易型脳機能変化測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03118038A JPH03118038A (ja) | 1991-05-20 |
JPH0543377B2 true JPH0543377B2 (zh) | 1993-07-01 |
Family
ID=17298100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1256836A Granted JPH03118038A (ja) | 1989-09-29 | 1989-09-29 | 簡易型脳機能変化測定装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03118038A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008546438A (ja) * | 2005-06-15 | 2008-12-25 | オルサン メディカル テクノロジーズ リミテッド | 脳潅流モニタ |
US9307918B2 (en) | 2011-02-09 | 2016-04-12 | Orsan Medical Technologies Ltd. | Devices and methods for monitoring cerebral hemodynamic conditions |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8211031B2 (en) | 2002-01-15 | 2012-07-03 | Orsan Medical Technologies Ltd. | Non-invasive intracranial monitor |
US7998080B2 (en) | 2002-01-15 | 2011-08-16 | Orsan Medical Technologies Ltd. | Method for monitoring blood flow to brain |
JP4572214B2 (ja) * | 2007-05-09 | 2010-11-04 | 株式会社アクション・リサーチ | 振動呈示装置 |
CN102238905B (zh) * | 2008-10-07 | 2015-05-27 | 奥森医疗科技有限公司 | 脑血液动力学参数的测量 |
JP5893886B2 (ja) * | 2011-10-07 | 2016-03-23 | 日本光電工業株式会社 | インピーダンス測定装置 |
-
1989
- 1989-09-29 JP JP1256836A patent/JPH03118038A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008546438A (ja) * | 2005-06-15 | 2008-12-25 | オルサン メディカル テクノロジーズ リミテッド | 脳潅流モニタ |
US9307918B2 (en) | 2011-02-09 | 2016-04-12 | Orsan Medical Technologies Ltd. | Devices and methods for monitoring cerebral hemodynamic conditions |
Also Published As
Publication number | Publication date |
---|---|
JPH03118038A (ja) | 1991-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |