FR2445659A1 - Appareil de conversion de signaux analogiques en signaux numeriques - Google Patents

Appareil de conversion de signaux analogiques en signaux numeriques

Info

Publication number
FR2445659A1
FR2445659A1 FR8006814A FR8006814A FR2445659A1 FR 2445659 A1 FR2445659 A1 FR 2445659A1 FR 8006814 A FR8006814 A FR 8006814A FR 8006814 A FR8006814 A FR 8006814A FR 2445659 A1 FR2445659 A1 FR 2445659A1
Authority
FR
France
Prior art keywords
signals
converting analog
counter
oscillator
voltage
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.)
Granted
Application number
FR8006814A
Other languages
English (en)
Other versions
FR2445659B1 (fr
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.)
Medtronic Inc
Original Assignee
Medtronic Inc
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 Medtronic Inc filed Critical Medtronic Inc
Publication of FR2445659A1 publication Critical patent/FR2445659A1/fr
Application granted granted Critical
Publication of FR2445659B1 publication Critical patent/FR2445659B1/fr
Expired legal-status Critical Current

Links

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
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/37211—Means for communicating with stimulators
    • A61N1/37252—Details of algorithms or data aspects of communication system, e.g. handshaking, transmitting specific data or segmenting data
    • A61N1/37264—Changing the program; Upgrading firmware
    • 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
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/368—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions
    • 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
    • A61N1/37—Monitoring; Protecting
    • 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
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/37211—Means for communicating with stimulators

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Electrotherapy Devices (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

L'invention concerne un appareil de conversion de signaux analogiques d'entrée en signaux numériques de sortie correspondants. Une tension inconnue V(x) est appliquée à un oscillateur 402 par un commutateur 407 pendant une période fixe T(+). Pendant cette période T(+), un compteur accumulateur 400 compte le signal de sortie de l'oscillateur 402. Un compteur 412 fonctionne très exactement en intégrateur analogique, car le contenu du compteur accumulateur 400 croît linéairement pour une valeur donnée de la tension V(x). Application aux stimulateurs cardiaques implantables.
FR8006814A 1978-07-20 1980-03-27 Appareil de conversion de signaux analogiques en signaux numeriques Expired FR2445659B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92630378A 1978-07-20 1978-07-20

Publications (2)

Publication Number Publication Date
FR2445659A1 true FR2445659A1 (fr) 1980-07-25
FR2445659B1 FR2445659B1 (fr) 1985-11-29

Family

ID=25453021

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7918562A Granted FR2431296A1 (fr) 1978-07-20 1979-07-18 Appareil de conversion de signaux analogiques en signaux numeriques et son application a un stimulateur cardiaque
FR8006814A Expired FR2445659B1 (fr) 1978-07-20 1980-03-27 Appareil de conversion de signaux analogiques en signaux numeriques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7918562A Granted FR2431296A1 (fr) 1978-07-20 1979-07-18 Appareil de conversion de signaux analogiques en signaux numeriques et son application a un stimulateur cardiaque

Country Status (8)

Country Link
JP (1) JPS5521990A (fr)
AU (2) AU536053B2 (fr)
DE (2) DE2929498A1 (fr)
FR (2) FR2431296A1 (fr)
GB (2) GB2026870B (fr)
IT (1) IT1118131B (fr)
NL (1) NL7905649A (fr)
SE (1) SE445176B (fr)

Families Citing this family (106)

* Cited by examiner, † Cited by third party
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NL7907462A (nl) * 1978-10-30 1980-05-02 Medtronic Inc Hartgangmaker.
US4230120A (en) * 1978-11-06 1980-10-28 Medtronic, Inc. Energy compensation means for digital cardiac pacemaker
EP0011935B2 (fr) * 1978-11-06 1991-05-22 Medtronic, Inc. Dispositif programmateur pour stimulateur du corps
AU530108B2 (en) * 1978-11-06 1983-06-30 Medtronic, Inc. Digital cardiac pacemaker
US4273132A (en) * 1978-11-06 1981-06-16 Medtronic, Inc. Digital cardiac pacemaker with threshold margin check
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
US4278094A (en) * 1979-10-10 1981-07-14 Medtronic, Inc. Pacemaker with pulse width adjustment circuitry
US4284082A (en) * 1979-12-12 1981-08-18 Medtronic B.V.Kerkrade Ventricular synchronized atrial pacemaker and method of operation
US4388927A (en) * 1979-12-13 1983-06-21 American Hospital Supply Corporation Programmable digital cardiac pacer
FR2471789A1 (fr) * 1979-12-18 1981-06-26 Cardiofrance Co Stimulateur cardiaque implantable polyvalent et procede d'utilisation de ce stimulateur
AU547290B2 (en) * 1980-04-07 1985-10-17 Medtronic, Inc. Artifact rejection by demand pacemakers
US4343311A (en) * 1980-04-30 1982-08-10 Medtronic, Inc. Atrial refractory control for R-wave rejection in pacemakers
DE3038856A1 (de) * 1980-10-10 1982-05-27 Siemens AG, 1000 Berlin und 8000 München Herzschrittmacher
AU541479B2 (en) * 1980-10-14 1985-01-10 Medtronic, Inc. Heart pacemeker with separate a-v intervals for a trial synchronous and atrial-ventricular sequential pacing modes
DE3153780C2 (de) * 1980-10-16 2003-04-03 Ela Medical Sa Verfahren zur Steuerung eines implantierbaren Herzschrittmachers
FR2492552A1 (fr) * 1980-10-16 1982-04-23 Ela Medical Sa Dispositif de commande pour instrument medical implantable tel qu'un stimulateur cardiaque et stimulateur cardiaque comportant ce dispositif
FR2492262B1 (fr) * 1980-10-16 1987-02-20 Ela Medical Sa Procede et dispositif de commande d'un appareil ou instrument notamment un stimulateur cardiaque implantable
US4485818A (en) * 1980-11-14 1984-12-04 Cordis Corporation Multi-mode microprocessor-based programmable cardiac pacer
US4374382A (en) * 1981-01-16 1983-02-15 Medtronic, Inc. Marker channel telemetry system for a medical device
US4363325A (en) * 1981-01-19 1982-12-14 Medtronic, Inc. Mode adaptive pacer
EP0160801B1 (fr) * 1981-02-17 1991-09-25 Medtronic, Inc. Indicateur de l'état d'épuisement de la source d'alimentation de dispositifs médicaux implantables
US4407288B1 (en) * 1981-02-18 2000-09-19 Mieczyslaw Mirowski Implantable heart stimulator and stimulation method
EP0077806B1 (fr) * 1981-05-04 1989-12-06 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Stimulateur cardiaque
WO1982003780A1 (fr) * 1981-05-04 1982-11-11 Nettelhorst Herwig Stimulateur cardiaque
EP0077808B1 (fr) * 1981-05-04 1987-08-26 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Stimulateur cardiaque
EP0077809B1 (fr) * 1981-05-04 1987-11-11 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Stimulateur cardiaque
EP0077801B1 (fr) * 1981-05-04 1987-09-23 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Stimulateur cardiaque
DE3278419D1 (en) * 1981-05-04 1988-06-09 Biotronik Mess & Therapieg Cardiac pacemaker
US4404972B1 (en) * 1981-05-18 2000-07-11 Intermedics Inc Implantable device with microprocessor control
US4390022A (en) * 1981-05-18 1983-06-28 Intermedics, Inc. Implantable device with microprocessor control
DE3127597A1 (de) * 1981-07-13 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Verfahren und herzschrittmacher zur bifokalen stimulierung des herzens
US4561444A (en) * 1981-08-10 1985-12-31 Cordis Corporation Implantable cardiac pacer having dual frequency programming and bipolar/linipolar lead programmability
DE3175940D1 (en) * 1981-10-26 1987-04-09 Vitafin Nv Programmable cardiac pacemaker
ATE25160T1 (de) * 1981-10-26 1987-02-15 Vitafin Nv Zur erzeugung von ausgangspulsfolgen den direkten speicherzugriff eines mikroprozessors verwendender herzschrittmacher.
DE3207006A1 (de) * 1982-02-26 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Av-sequenzieller herzschrittmacher
AU1573183A (en) * 1982-06-18 1983-12-22 Biostim Inc. Biological electrical stimulators
US4562841A (en) * 1982-08-05 1986-01-07 Cardiac Pacemakers, Inc. Programmable multi-mode cardiac pacemaker
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Also Published As

Publication number Publication date
FR2431296A1 (fr) 1980-02-15
AU536053B2 (en) 1984-04-19
AU3271384A (en) 1984-12-20
DE2954642C2 (fr) 1991-11-07
NL7905649A (nl) 1980-01-22
GB2079610A (en) 1982-01-27
SE445176B (sv) 1986-06-09
DE2929498A1 (de) 1980-01-31
AU584310B2 (en) 1989-05-25
JPS6241032B2 (fr) 1987-09-01
DE2929498C2 (fr) 1991-07-11
FR2431296B1 (fr) 1984-01-06
GB2079610B (en) 1983-04-07
GB2026870B (en) 1982-12-15
IT7949768A0 (it) 1979-07-16
IT1118131B (it) 1986-02-24
JPS5521990A (en) 1980-02-16
SE7906205L (sv) 1980-01-21
AU4898979A (en) 1980-01-24
FR2445659B1 (fr) 1985-11-29
GB2026870A (en) 1980-02-13

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