FR2385262A1 - Montage permettant d'obtenir des impulsions de declenchement a partir d'un signal de mesure - Google Patents

Montage permettant d'obtenir des impulsions de declenchement a partir d'un signal de mesure

Info

Publication number
FR2385262A1
FR2385262A1 FR7807632A FR7807632A FR2385262A1 FR 2385262 A1 FR2385262 A1 FR 2385262A1 FR 7807632 A FR7807632 A FR 7807632A FR 7807632 A FR7807632 A FR 7807632A FR 2385262 A1 FR2385262 A1 FR 2385262A1
Authority
FR
France
Prior art keywords
measurement signal
threshold value
obtain trip
mounting allowing
timer
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.)
Withdrawn
Application number
FR7807632A
Other languages
English (en)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2385262A1 publication Critical patent/FR2385262A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0866—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02411—Detecting, measuring or recording pulse rate or heart rate of foetuses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
    • A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
    • A61B5/4343—Pregnancy and labour monitoring, e.g. for labour onset detection
    • A61B5/4362—Assessing foetal parameters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/02—Measuring pulse or heart rate
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Gynecology & Obstetrics (AREA)
  • Pregnancy & Childbirth (AREA)
  • Cardiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Pediatric Medicine (AREA)
  • Reproductive Health (AREA)
  • Nonlinear Science (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

L'invention concerne un montage permettant d'obtenir des impulsions de déclenchement à partir d'un signal de mesure. Ce dispositif comporte un discriminateur à valeurs de seuil 16, 17, 22, 23, 26, 27 comportant quatre valeurs de seuil pour un signal de mesure U7 , formé à partir de signaux d'entrée U1 , U2 traversant un comparateur de phase 1 et arrivant à un étage de réglage 15, le signal de déclenchement étant déclenché par l'intermédiaire d'une minuterie 24, 28 pour la partie positive ou négative du signal de mesure lorsque, après un premier ou un autre passage de la valeur de seuil maximale à la valeur de seuil minimale, le seuil maximal n'est atteint aucune autre fois pendant le temps de retard de la minuterie. Application notamment aux appareils de mesure de la fréquence cardiaque de foetus selon l'effet Doppler à l'aide des ultrasons.
FR7807632A 1977-03-25 1978-03-16 Montage permettant d'obtenir des impulsions de declenchement a partir d'un signal de mesure Withdrawn FR2385262A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772713368 DE2713368C3 (de) 1977-03-25 1977-03-25 Schaltungsanordnung zur Gewinnung von Triggerimpulsen aus einem physiologischen elektrischen Meßsignal

Publications (1)

Publication Number Publication Date
FR2385262A1 true FR2385262A1 (fr) 1978-10-20

Family

ID=6004732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807632A Withdrawn FR2385262A1 (fr) 1977-03-25 1978-03-16 Montage permettant d'obtenir des impulsions de declenchement a partir d'un signal de mesure

Country Status (4)

Country Link
CH (1) CH626201A5 (fr)
DE (1) DE2713368C3 (fr)
FR (1) FR2385262A1 (fr)
GB (1) GB1586628A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2113287A5 (fr) * 1970-10-20 1972-06-23 Sonicaid Ltd
FR2192789A1 (fr) * 1972-07-13 1974-02-15 Hoffmann La Roche
FR2348683A1 (fr) * 1976-04-20 1977-11-18 Siemens Ag Appareil de mesure de la frequence cardiaque fonctionnant selon le principe de l'effet doppler a ultrasons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2113287A5 (fr) * 1970-10-20 1972-06-23 Sonicaid Ltd
FR2192789A1 (fr) * 1972-07-13 1974-02-15 Hoffmann La Roche
FR2348683A1 (fr) * 1976-04-20 1977-11-18 Siemens Ag Appareil de mesure de la frequence cardiaque fonctionnant selon le principe de l'effet doppler a ultrasons

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *

Also Published As

Publication number Publication date
DE2713368C3 (de) 1980-04-17
DE2713368B2 (de) 1979-08-09
DE2713368A1 (de) 1978-09-28
CH626201A5 (en) 1981-10-30
GB1586628A (en) 1981-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse