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ES8101873A1 - Un aparato de medicion de impedancia entre electrodos para electrocardiografia - Google Patents

Un aparato de medicion de impedancia entre electrodos para electrocardiografia

Info

Publication number
ES8101873A1
ES8101873A1 ES492855A ES492855A ES8101873A1 ES 8101873 A1 ES8101873 A1 ES 8101873A1 ES 492855 A ES492855 A ES 492855A ES 492855 A ES492855 A ES 492855A ES 8101873 A1 ES8101873 A1 ES 8101873A1
Authority
ES
Spain
Prior art keywords
impedance
amplitude
ekg
value
inter
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
Application number
ES492855A
Other languages
English (en)
Other versions
ES492855A0 (es
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES492855A0 publication Critical patent/ES492855A0/es
Publication of ES8101873A1 publication Critical patent/ES8101873A1/es
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/276—Protection against electrode failure
    • 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
    • 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
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • Cardiology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

DISPOSITIVO PARA MEDIR LA IMPEDANCIA ENTRE ELECTRODOS UTILIZADOS EN ELECTROCARDIOGRAFIA. A UN PACIENTE (12) SE LE APLICAN DOS ELECTRODOS (10, 11), AUNQUE PUEDEN SER MAS, Y LAS SEÑALES DE ESTOS, A TRAVES DE UN AMPLIFICADOR DIFERENCIAL (18), SON REGISTRADAS EN EL REGISTRADOR (20) DE BANDA DE PAPEL. UNA IMPEDANCIA DE PRUEBA (ZT), VARIABLE, ES INSERTADA EN PARALELO CON LOS DOS ELECTRODOS (10, 11) A VOLUNTAD POR MEDIO DE UN PULSADOR (22). MEDIANTE LA OBSERVACION DEL VALOR DE LAS IMPEDANCIAS DE LOS ELECTRODOS (10, 11) CUANDO ESTA INSERTADA LA IMPEDANCIA DE PRUEBA (ZT) A CUANDO NO LO ESTA, SE OBIENE EL VALOR REAL DE DICHAS IMPEDANCIAS, VIGILANDOSE ASI QUE PERMANECEN EN LA MAGNITUD REQUERIDA. COMO SEÑAL EN EL CIRCUITO SE USA LA PROCEDENTE DEL SISTEMA CARDIACO DEL PACIENTE. EL SISTEMA PUEDE HACERSE AUTOMATICO SUSTITUYENDO EL PULSADOR (22) POR UN CIRCUITO APROPIADO.
ES492855A 1979-06-29 1980-06-27 Un aparato de medicion de impedancia entre electrodos para electrocardiografia Expired ES8101873A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/053,637 US4321932A (en) 1979-06-29 1979-06-29 Electrode impedance monitoring method apparatus for electrocardiography

Publications (2)

Publication Number Publication Date
ES492855A0 ES492855A0 (es) 1980-12-16
ES8101873A1 true ES8101873A1 (es) 1980-12-16

Family

ID=21985592

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492855A Expired ES8101873A1 (es) 1979-06-29 1980-06-27 Un aparato de medicion de impedancia entre electrodos para electrocardiografia

Country Status (6)

Country Link
US (1) US4321932A (es)
EP (1) EP0021394B1 (es)
JP (1) JPS585057B2 (es)
CA (1) CA1157530A (es)
DE (1) DE3070052D1 (es)
ES (1) ES8101873A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506678A (en) * 1982-06-07 1985-03-26 Healthdyne, Inc. Patient monitor for providing respiration and electrocardiogram signals
DE3246473A1 (de) * 1982-12-15 1984-06-20 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur erkennung einer elektrischen leitungsunterbrechung
US4785812A (en) * 1986-11-26 1988-11-22 First Medical Devices Corporation Protection system for preventing defibrillation with incorrect or improperly connected electrodes
US4987902A (en) * 1988-12-30 1991-01-29 Physio-Control Corporation Apparatus for transmitting patient physiological signals
US5197479A (en) * 1991-05-13 1993-03-30 Mortara Instrument Automatic electrode channel impedance measurement system for egg monitor
US5713367A (en) * 1994-01-26 1998-02-03 Cambridge Heart, Inc. Measuring and assessing cardiac electrical stability
US20080027350A1 (en) * 2006-07-13 2008-01-31 Advanced Cardiovascular Systems, Inc. Methods and apparatus for localization, diagnosis, contact or activity detection of bio-electric tissue
US9622673B2 (en) * 2007-12-14 2017-04-18 Siemens Healthcare Gmbh System for determining electrical status of patient attached leads
US8157848B2 (en) * 2008-02-01 2012-04-17 Siemens Medical Solutions Usa, Inc. System for characterizing patient tissue impedance for monitoring and treatment
FI20085693A0 (fi) * 2008-07-03 2008-07-03 Polar Electro Oy Biosignaalin prosessointi
JP5494548B2 (ja) * 2011-04-08 2014-05-14 株式会社デンソー 電圧計測装置
JP6023998B2 (ja) * 2012-05-16 2016-11-09 歩 眞溪 インピーダンス回路及び生体信号計測装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632793A (en) * 1949-09-08 1953-03-24 Electric Storage Battery Co Battery tester
JPS498557B1 (es) * 1970-02-02 1974-02-27
US3811428A (en) * 1971-12-30 1974-05-21 Brattle Instr Corp Biological signals monitor
GB1416141A (en) * 1972-02-04 1975-12-03 Gilhead P Acupoint device
AT324539B (de) * 1973-07-20 1975-09-10 Elin Union Ag Testgerät zum auffinden von akupunkturpunkten
US3868947A (en) * 1973-10-16 1975-03-04 Us Government Concentric electrode construction for an electrocardiogram transmitter
US3858034A (en) * 1973-10-19 1974-12-31 Del Mar Eng Lab Electrocardiac computer
US3976055A (en) * 1973-12-17 1976-08-24 Ndm Corporation Electrode and conductor therefor
US4006737A (en) * 1974-01-04 1977-02-08 Del Mar Engineering Laboratories Electrocardiographic computer
IL45786A (en) * 1974-10-04 1977-08-31 Yeda Res & Dev Heart beat detector
US3957037A (en) * 1975-02-24 1976-05-18 Nasa Readout electrode assembly for measuring biological impedance
DE2717883A1 (de) * 1977-04-22 1978-11-02 Pabst Gerhard Anlage fuer die cardiologische belastungsuntersuchung
DE2805482C2 (de) * 1978-02-09 1987-03-05 Hellige Gmbh, 7800 Freiburg Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung
FR2418646A1 (fr) * 1978-03-02 1979-09-28 Malatier Paul Appareil a utilisation therapeutique ayant une double fonction : la localisation electrique des points d'acupuncture et le traitement electrique de ces points

Also Published As

Publication number Publication date
EP0021394A1 (en) 1981-01-07
DE3070052D1 (en) 1985-03-14
ES492855A0 (es) 1980-12-16
JPS585057B2 (ja) 1983-01-28
US4321932A (en) 1982-03-30
JPS568035A (en) 1981-01-27
CA1157530A (en) 1983-11-22
EP0021394B1 (en) 1985-01-30

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