DE2805482C2 - Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung - Google Patents
Störungssicherer QRS-Detektor mit automatischer SchwellenwertbestimmungInfo
- Publication number
- DE2805482C2 DE2805482C2 DE2805482A DE2805482A DE2805482C2 DE 2805482 C2 DE2805482 C2 DE 2805482C2 DE 2805482 A DE2805482 A DE 2805482A DE 2805482 A DE2805482 A DE 2805482A DE 2805482 C2 DE2805482 C2 DE 2805482C2
- Authority
- DE
- Germany
- Prior art keywords
- input
- signal
- qrs
- detector
- threshold value
- 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
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000000747 cardiac effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000001629 suppression Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000718 qrs complex Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- A61B5/30—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]
-
- 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
- A61B5/316—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
- A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2805482A DE2805482C2 (de) | 1978-02-09 | 1978-02-09 | Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung |
EP79100299A EP0003567B1 (de) | 1978-02-09 | 1979-02-02 | Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2805482A DE2805482C2 (de) | 1978-02-09 | 1978-02-09 | Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2805482A1 DE2805482A1 (de) | 1979-08-16 |
DE2805482C2 true DE2805482C2 (de) | 1987-03-05 |
Family
ID=6031541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2805482A Expired DE2805482C2 (de) | 1978-02-09 | 1978-02-09 | Störungssicherer QRS-Detektor mit automatischer Schwellenwertbestimmung |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0003567B1 (US07122547-20061017-C00032.png) |
DE (1) | DE2805482C2 (US07122547-20061017-C00032.png) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8050764B2 (en) | 2003-10-29 | 2011-11-01 | Cardiac Pacemakers, Inc. | Cross-checking of transthoracic impedance and acceleration signals |
US8209011B2 (en) | 2002-12-30 | 2012-06-26 | Cardiac Pacemakers, Inc. | Automatically configurable minute ventilation sensor |
US8306621B2 (en) | 2003-07-02 | 2012-11-06 | Cardiac Pacemakers, Inc. | Cardiac cycle synchronized sampling of impedance signal |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4321932A (en) * | 1979-06-29 | 1982-03-30 | International Business Machines Corporation | Electrode impedance monitoring method apparatus for electrocardiography |
DE2947776A1 (de) * | 1979-11-23 | 1981-06-04 | Biotronik Meß- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin, 1000 Berlin | Vorrichtung zur unterdrueckung netzfrequenter stoerungen bei der aufnahme biologischer signale |
US4540000A (en) * | 1983-12-15 | 1985-09-10 | Ocg Technology Inc. | Signal conditioner for biological signals |
US5269300A (en) * | 1992-07-30 | 1993-12-14 | Cardiac Pacemakers, Inc. | Automatic sensitivity control in an implantable cardiac rhythm management system |
DE19626353A1 (de) * | 1996-06-18 | 1998-01-02 | Biotronik Mess & Therapieg | Signaldetektor |
US6076015A (en) * | 1998-02-27 | 2000-06-13 | Cardiac Pacemakers, Inc. | Rate adaptive cardiac rhythm management device using transthoracic impedance |
US7092757B2 (en) | 2002-07-12 | 2006-08-15 | Cardiac Pacemakers, Inc. | Minute ventilation sensor with dynamically adjusted excitation current |
GB0307212D0 (en) * | 2003-03-28 | 2003-04-30 | Advanced Medical Diagnostics G | Method and apparatus for identifying features in an ECG signal |
US9078577B2 (en) | 2012-12-06 | 2015-07-14 | Massachusetts Institute Of Technology | Circuit for heartbeat detection and beat timing extraction |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3590811A (en) * | 1968-12-06 | 1971-07-06 | American Optical Corp | Electrocardiographic r-wave detector |
US3821948A (en) * | 1971-11-03 | 1974-07-02 | Hoffmann La Roche | System and method for analyzing absolute derivative signal from heartbeat |
DE2545802C2 (de) * | 1975-10-13 | 1983-10-27 | Medtronic, Inc., 55440 Minneapolis, Minn. | Herzsignaldiskriminator |
-
1978
- 1978-02-09 DE DE2805482A patent/DE2805482C2/de not_active Expired
-
1979
- 1979-02-02 EP EP79100299A patent/EP0003567B1/de not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8209011B2 (en) | 2002-12-30 | 2012-06-26 | Cardiac Pacemakers, Inc. | Automatically configurable minute ventilation sensor |
US8423142B2 (en) | 2002-12-30 | 2013-04-16 | Cardiac Pacemakers, Inc. | Cross-checking of transthoracic impedance and acceleration signals |
US8306621B2 (en) | 2003-07-02 | 2012-11-06 | Cardiac Pacemakers, Inc. | Cardiac cycle synchronized sampling of impedance signal |
US8442633B2 (en) | 2003-07-02 | 2013-05-14 | Cardiac Pacemakers, Inc. | Cardiac cycle synchronized sampling of impedance signal |
US8688214B2 (en) | 2003-07-02 | 2014-04-01 | Cardiac Pacemakers. Inc. | Cardiac cycle synchronized sampling of impedance signal |
US8880171B2 (en) | 2003-07-02 | 2014-11-04 | Cardiac Pacemakers, Inc. | Cardiac cycle synchronized sampling of impedance signal |
US8050764B2 (en) | 2003-10-29 | 2011-11-01 | Cardiac Pacemakers, Inc. | Cross-checking of transthoracic impedance and acceleration signals |
Also Published As
Publication number | Publication date |
---|---|
EP0003567B1 (de) | 1984-10-17 |
DE2805482A1 (de) | 1979-08-16 |
EP0003567A1 (de) | 1979-08-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8181 | Inventor (new situation) |
Free format text: HOFMANN, GERHARD H., DIPL.-ING., 7800 FREIBURG, DE |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |