WO2001060252A1 - Monitoring electrical activity - Google Patents

Monitoring electrical activity Download PDF

Info

Publication number
WO2001060252A1
WO2001060252A1 PCT/GB2001/000629 GB0100629W WO0160252A1 WO 2001060252 A1 WO2001060252 A1 WO 2001060252A1 GB 0100629 W GB0100629 W GB 0100629W WO 0160252 A1 WO0160252 A1 WO 0160252A1
Authority
WO
WIPO (PCT)
Prior art keywords
yule
walker
output signal
autocorrelation
power density
Prior art date
Application number
PCT/GB2001/000629
Other languages
English (en)
French (fr)
Inventor
Mark Griffiths
Alan Preece
Original Assignee
The University Of Bristol
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 The University Of Bristol filed Critical The University Of Bristol
Priority to US10/203,954 priority Critical patent/US6748263B2/en
Priority to AU2001233857A priority patent/AU2001233857A1/en
Priority to EP01905887A priority patent/EP1255486B1/en
Priority to DE60118705T priority patent/DE60118705T2/de
Priority to CA002400348A priority patent/CA2400348A1/en
Publication of WO2001060252A1 publication Critical patent/WO2001060252A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4821—Determining level or depth of anaesthesia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/369—Electroencephalography [EEG]
    • A61B5/372—Analysis of electroencephalograms
    • A61B5/374—Detecting the frequency distribution of signals, e.g. detecting delta, theta, alpha, beta or gamma waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/30—Input circuits therefor
    • A61B5/301—Input circuits therefor providing electrical separation, e.g. by using isolating transformers or optocouplers
PCT/GB2001/000629 2000-02-17 2001-02-16 Monitoring electrical activity WO2001060252A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/203,954 US6748263B2 (en) 2000-02-17 2001-02-16 Monitoring electrical activity
AU2001233857A AU2001233857A1 (en) 2000-02-17 2001-02-16 Monitoring electrical activity
EP01905887A EP1255486B1 (en) 2000-02-17 2001-02-16 Monitoring electrical activity
DE60118705T DE60118705T2 (de) 2000-02-17 2001-02-16 Überwachung von elektrischer aktivität
CA002400348A CA2400348A1 (en) 2000-02-17 2001-02-16 Monitoring electrical activity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0003665A GB2359367B (en) 2000-02-17 2000-02-17 Monitoring electrical activity
GB0003665.7 2000-02-17

Publications (1)

Publication Number Publication Date
WO2001060252A1 true WO2001060252A1 (en) 2001-08-23

Family

ID=9885786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/000629 WO2001060252A1 (en) 2000-02-17 2001-02-16 Monitoring electrical activity

Country Status (8)

Country Link
US (1) US6748263B2 (US06748263-20040608-M00004.png)
EP (1) EP1255486B1 (US06748263-20040608-M00004.png)
AT (1) ATE322861T1 (US06748263-20040608-M00004.png)
AU (1) AU2001233857A1 (US06748263-20040608-M00004.png)
CA (1) CA2400348A1 (US06748263-20040608-M00004.png)
DE (1) DE60118705T2 (US06748263-20040608-M00004.png)
GB (1) GB2359367B (US06748263-20040608-M00004.png)
WO (1) WO2001060252A1 (US06748263-20040608-M00004.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2076173T3 (da) 2006-09-29 2015-02-09 Univ California Overvågning af burst-suppression ved induceret koma
US8444559B2 (en) * 2007-05-04 2013-05-21 Reproductive Research Technologies, Lp Skin impedance matching system and method for skin/electrode interface
EP2549923A4 (en) * 2010-03-23 2014-12-10 Reproductive Res Technologies Lp NON-INVASIVE MEASUREMENT OF THE PROPAGATION ASSOCIATED WITH UTERINE ELECTROMYOGRAPHY AND FREQUENCY OF THE POWER SPECTRUM FOR PREDICTING A REAL THREAT OF PREMATURE WORK AND DELIVERY
US8386026B2 (en) * 2010-04-12 2013-02-26 Reproductive Research Technologies, L.P. System and method for acquiring and displaying abdominal EMG signals
US9775545B2 (en) 2010-09-28 2017-10-03 Masimo Corporation Magnetic electrical connector for patient monitors
JP5710767B2 (ja) 2010-09-28 2015-04-30 マシモ コーポレイション オキシメータを含む意識深度モニタ
GB201209638D0 (en) 2012-05-30 2012-07-11 Isis Innovation Perception loss detection
WO2016057553A1 (en) 2014-10-07 2016-04-14 Masimo Corporation Modular physiological sensors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846190A (en) * 1983-08-23 1989-07-11 John Erwin R Electroencephalographic system data display
US5211179A (en) * 1989-07-14 1993-05-18 Ralph Haberl System and method for analyzing selected signal components in electrocardiographic signals, particularly late potentials in electrocardiograms
US5299118A (en) * 1987-06-26 1994-03-29 Nicolet Instrument Corporation Method and system for analysis of long term physiological polygraphic recordings
US5458117A (en) * 1991-10-25 1995-10-17 Aspect Medical Systems, Inc. Cerebral biopotential analysis system and method
US5765128A (en) * 1994-12-21 1998-06-09 Fujitsu Limited Apparatus for synchronizing a voice coder and a voice decoder of a vector-coding type
US6011990A (en) * 1995-10-19 2000-01-04 Arthur Schultz Method and device for evaluating an EEG carried out in the context of anaesthesia or intensive care

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616659A (en) * 1985-05-06 1986-10-14 At&T Bell Laboratories Heart rate detection utilizing autoregressive analysis
US4974162A (en) * 1987-03-13 1990-11-27 University Of Maryland Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia
US5010891A (en) * 1987-10-09 1991-04-30 Biometrak Corporation Cerebral biopotential analysis system and method
US5109863A (en) * 1989-10-26 1992-05-05 Rutgers, The State University Of New Jersey Noninvasive diagnostic system for coronary artery disease
US5792062A (en) * 1996-05-14 1998-08-11 Massachusetts Institute Of Technology Method and apparatus for detecting nonlinearity in an electrocardiographic signal
US5940798A (en) * 1997-12-31 1999-08-17 Scientific Learning Corporation Feedback modification for reducing stuttering

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846190A (en) * 1983-08-23 1989-07-11 John Erwin R Electroencephalographic system data display
US5299118A (en) * 1987-06-26 1994-03-29 Nicolet Instrument Corporation Method and system for analysis of long term physiological polygraphic recordings
US5211179A (en) * 1989-07-14 1993-05-18 Ralph Haberl System and method for analyzing selected signal components in electrocardiographic signals, particularly late potentials in electrocardiograms
US5458117A (en) * 1991-10-25 1995-10-17 Aspect Medical Systems, Inc. Cerebral biopotential analysis system and method
US5765128A (en) * 1994-12-21 1998-06-09 Fujitsu Limited Apparatus for synchronizing a voice coder and a voice decoder of a vector-coding type
US6011990A (en) * 1995-10-19 2000-01-04 Arthur Schultz Method and device for evaluating an EEG carried out in the context of anaesthesia or intensive care

Also Published As

Publication number Publication date
EP1255486B1 (en) 2006-04-12
EP1255486A1 (en) 2002-11-13
DE60118705D1 (de) 2006-05-24
AU2001233857A1 (en) 2001-08-27
CA2400348A1 (en) 2001-08-23
DE60118705T2 (de) 2007-04-12
US6748263B2 (en) 2004-06-08
GB2359367A (en) 2001-08-22
GB0003665D0 (en) 2000-04-05
US20030109796A1 (en) 2003-06-12
GB2359367B (en) 2003-11-05
ATE322861T1 (de) 2006-04-15

Similar Documents

Publication Publication Date Title
US6882166B2 (en) System and method for measuring the validity of a bioelectric impedance measurement in the presence of interference
Cain et al. Fast-Fourier transform analysis of signal-averaged electrocardiograms for identification of patients prone to sustained ventricular tachycardia.
US4334545A (en) Biofeedback system
Mahdiani et al. Is 50 Hz high enough ECG sampling frequency for accurate HRV analysis?
AU2002327200A1 (en) System and method for measuring bioelectric impedance in the presence of interference
Christov et al. Filtering of electromyogram artifacts from the electrocardiogram
TWI481196B (zh) 生物電信號感測儀器與其基線漂移移除裝置
Tal et al. Cleaning MEG artifacts using external cues
US8523777B2 (en) Method, apparatus and system for predicting electromechanical dissociation
JPH1052409A (ja) 電磁妨害除去のための濾波装置および濾波方法
US6487449B1 (en) Method and apparatus for reducing noise and detecting electrode faults in medical equipment
US6748263B2 (en) Monitoring electrical activity
Dai et al. Removal of ECG artifacts from EEG using an effective recursive least square notch filter
Ktonas et al. Spectral analysis vs. period-amplitude analysis of narrowband EEG activity: a comparison based on the sleep delta-frequency band
Santopietro The origin and characterization of the primary signal, noise, and interference sources in the high frequency electrocardiogram
Dotsinsky et al. Power-line interference cancellation in ECG signals
Friston et al. Transient phase‐locking and dynamic correlations: Are they the same thing?
Huang et al. A novel application of the S-transform in removing powerline interference from biomedical signals
Spasic et al. Surrogate data modeling the relationship between high frequency amplitudes and Higuchi fractal dimension of EEG signals in anesthetized rats
Koeleman et al. Estimation accuracy of P wave and QRS complex occurrence times in the ECG: The accuracy for simplified theoretical and computer simulated waveforms
Muthuswamy et al. Bispectrum analysis of EEG of a dog to determine the depth under halothane anesthesia
Martínez-Iniesta et al. Application of Joint Notch Filtering and Wavelet Transform for Enhanced Powerline Interference Removal in Atrial Fibrillation Electrograms
Sahakian et al. Atrial electrograms and the characterization of atrial fibrillation
Mrowka et al. Alternans-like phenomena due to filtering of electrocardiographic data
Pinheiro et al. A practical approach concerning heart rate variability measurement and arrhythmia detection based on virtual instrumentation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2400348

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2001905887

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10203954

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2001905887

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

WWG Wipo information: grant in national office

Ref document number: 2001905887

Country of ref document: EP