CA1087691A - Fibrillation monitor and defibrillator - Google Patents
Fibrillation monitor and defibrillatorInfo
- Publication number
- CA1087691A CA1087691A CA262,273A CA262273A CA1087691A CA 1087691 A CA1087691 A CA 1087691A CA 262273 A CA262273 A CA 262273A CA 1087691 A CA1087691 A CA 1087691A
- Authority
- CA
- Canada
- Prior art keywords
- ecg
- slope
- circuit
- threshold
- segments
- 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
Links
- 206010061592 cardiac fibrillation Diseases 0.000 title description 27
- 230000002600 fibrillogenic effect Effects 0.000 title description 27
- 238000012935 Averaging Methods 0.000 claims abstract description 12
- 238000013194 cardioversion Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000007257 malfunction Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 52
- 208000003663 ventricular fibrillation Diseases 0.000 description 42
- 238000001514 detection method Methods 0.000 description 13
- 230000000747 cardiac effect Effects 0.000 description 12
- 230000033764 rhythmic process Effects 0.000 description 9
- 206010003119 arrhythmia Diseases 0.000 description 8
- 230000006793 arrhythmia Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 208000001871 Tachycardia Diseases 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001862 defibrillatory effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000282979 Alces alces Species 0.000 description 1
- 241000370685 Arge Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000003416 antiarrhythmic agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002680 cardiopulmonary resuscitation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
- A61N1/3621—Heart stimulators for treating or preventing abnormally high heart rate
-
- 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
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/361—Detecting fibrillation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3956—Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3987—Heart defibrillators characterised by the timing or triggering of the shock
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physiology (AREA)
- Psychiatry (AREA)
- Signal Processing (AREA)
- Electrotherapy Devices (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA356,587A CA1106921A (en) | 1975-09-30 | 1980-07-18 | Cardioverting apparatus |
| CA356,586A CA1106920A (en) | 1975-09-30 | 1980-07-18 | Method and apparatus for monitoring a heart |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62002575A | 1975-09-30 | 1975-09-30 | |
| US620,025 | 1975-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1087691A true CA1087691A (en) | 1980-10-14 |
Family
ID=24484280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA262,273A Expired CA1087691A (en) | 1975-09-30 | 1976-09-29 | Fibrillation monitor and defibrillator |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5244089A (enrdf_load_stackoverflow) |
| CA (1) | CA1087691A (enrdf_load_stackoverflow) |
| DE (2) | DE2661005C2 (enrdf_load_stackoverflow) |
| GB (1) | GB1538522A (enrdf_load_stackoverflow) |
| NL (1) | NL177463C (enrdf_load_stackoverflow) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2814457C3 (de) * | 1978-04-04 | 1981-10-15 | Institutsgemeinschaft Stuttgart e.V., 7000 Stuttgart | Vorrichtung zur Erfassung des QRS-Komplexes aus einem elektrischen Herzaktionssignal |
| WO1980000006A1 (en) * | 1978-06-02 | 1980-01-10 | J Anderson | Diagnostic apparatus |
| US4291699A (en) * | 1978-09-21 | 1981-09-29 | Purdue Research Foundation | Method of and apparatus for automatically detecting and treating ventricular fibrillation |
| US4312356A (en) * | 1979-03-07 | 1982-01-26 | George Edgar Sowton | Pacemakers for tachycardia control |
| US4295474A (en) * | 1979-10-02 | 1981-10-20 | The Johns Hopkins University | Recorder with patient alarm and service request systems suitable for use with automatic implantable defibrillator |
| US4303075A (en) * | 1980-02-11 | 1981-12-01 | Mieczyslaw Mirowski | Method and apparatus for maximizing stroke volume through atrioventricular pacing using implanted cardioverter/pacer |
| NL190185C (nl) * | 1980-08-05 | 1993-12-01 | Mirowski Mieczyslaw | Stelsel voor het defibrilleren van het hart van een patient. |
| US4407288B1 (en) * | 1981-02-18 | 2000-09-19 | Mieczyslaw Mirowski | Implantable heart stimulator and stimulation method |
| US4559946A (en) * | 1982-06-18 | 1985-12-24 | Mieczyslaw Mirowski | Method and apparatus for correcting abnormal cardiac activity by low energy shocks |
| JPH01136783U (enrdf_load_stackoverflow) * | 1988-03-11 | 1989-09-19 | ||
| EP0402508B2 (de) * | 1989-06-15 | 2002-10-23 | St. Jude Medical AB | Einrichtung zum Detektieren einer Folge von anormalen Ereignissen in einem elektrischen Signal, insbesondere dem Depolarisationssignal eines Herzens |
| US5301677A (en) * | 1992-02-06 | 1994-04-12 | Cardiac Pacemakers, Inc. | Arrhythmia detector using delta modulated turning point morphology of the ECG wave |
| NO322399B1 (no) * | 1999-09-07 | 2006-10-02 | Laerdal Medical As | System for a beregne sannsynlighetstallet for utfallet av et tenkt forestaende defibrillatorsjokk basert pa karakteristiske trekk ved hjertet malt under hjertestans og gjenoppliving |
| US20080208070A1 (en) * | 2005-06-23 | 2008-08-28 | Koninklijke Philips Electronics N.V. | Defibrillator with Automatic Shock First/Cpr First Algorithm |
| US8942800B2 (en) | 2012-04-20 | 2015-01-27 | Cardiac Science Corporation | Corrective prompting system for appropriate chest compressions |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3352300A (en) * | 1964-10-28 | 1967-11-14 | Fred A Rose | Cardiac monitor |
| US3716059A (en) * | 1970-08-24 | 1973-02-13 | Cardiac Resuscitator Corp | Cardiac resuscitator |
-
1976
- 1976-09-27 GB GB40018/76A patent/GB1538522A/en not_active Expired
- 1976-09-29 DE DE2661005A patent/DE2661005C2/de not_active Expired - Lifetime
- 1976-09-29 DE DE2643907A patent/DE2643907A1/de not_active Ceased
- 1976-09-29 CA CA262,273A patent/CA1087691A/en not_active Expired
- 1976-09-30 JP JP51117908A patent/JPS5244089A/ja active Granted
- 1976-09-30 NL NLAANVRAGE7610831,A patent/NL177463C/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2661005C2 (enrdf_load_stackoverflow) | 1990-03-08 |
| NL177463B (nl) | 1985-05-01 |
| JPS5244089A (en) | 1977-04-06 |
| NL7610831A (nl) | 1977-04-01 |
| DE2643907A1 (de) | 1977-04-07 |
| GB1538522A (en) | 1979-01-17 |
| NL177463C (nl) | 1985-10-01 |
| JPS5753108B2 (enrdf_load_stackoverflow) | 1982-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |