IE45875B1 - Improvements in heart pacers - Google Patents

Improvements in heart pacers

Info

Publication number
IE45875B1
IE45875B1 IE1995/77A IE199577A IE45875B1 IE 45875 B1 IE45875 B1 IE 45875B1 IE 1995/77 A IE1995/77 A IE 1995/77A IE 199577 A IE199577 A IE 199577A IE 45875 B1 IE45875 B1 IE 45875B1
Authority
IE
Ireland
Prior art keywords
instructions
microprocessor
output
stimulation pulse
heart
Prior art date
Application number
IE1995/77A
Other languages
English (en)
Other versions
IE45875L (en
Original Assignee
Arco Med Prod Co
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 Arco Med Prod Co filed Critical Arco Med Prod Co
Publication of IE45875L publication Critical patent/IE45875L/xx
Publication of IE45875B1 publication Critical patent/IE45875B1/en

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362Heart stimulators
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/284Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator monostable

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • Electrotherapy Devices (AREA)
IE1995/77A 1976-09-29 1977-09-29 Improvements in heart pacers IE45875B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72771076A 1976-09-29 1976-09-29

Publications (2)

Publication Number Publication Date
IE45875L IE45875L (en) 1978-03-29
IE45875B1 true IE45875B1 (en) 1982-12-15

Family

ID=24923704

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1995/77A IE45875B1 (en) 1976-09-29 1977-09-29 Improvements in heart pacers

Country Status (11)

Country Link
JP (1) JPS5342484A (xx)
BE (1) BE859086A (xx)
CA (1) CA1100580A (xx)
CH (1) CH627081A5 (xx)
DE (1) DE2738871A1 (xx)
FR (1) FR2366012A1 (xx)
GB (1) GB1587917A (xx)
IE (1) IE45875B1 (xx)
IT (1) IT1089836B (xx)
NL (1) NL7710571A (xx)
SE (1) SE7710869L (xx)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163451A (en) * 1977-10-26 1979-08-07 Cordis Corporation Interactive method and digitally timed apparatus for cardiac pacing arrhythmia treatment
FR2419720A1 (fr) * 1978-03-14 1979-10-12 Cardiofrance Co Stimulateur cardiaque implantable a fonctions therapeutique et diagnostique
FR2424737A1 (fr) * 1978-05-05 1979-11-30 Cardiofrance Co Procede de reglage d'un stimulateur cardiaque implantable, programmateur de reglage et stimulateur pour la mise en oeuvre du procede
IT1118131B (it) * 1978-07-20 1986-02-24 Medtronic Inc Perfezionamento nei pacemaker cardiaci multi-modo adattabili impiantabili
US4958632A (en) * 1978-07-20 1990-09-25 Medtronic, Inc. Adaptable, digital computer controlled cardiac pacemaker
US4222385A (en) * 1978-09-07 1980-09-16 National Research Development Corporation Electronic heart implant
US4446533A (en) * 1978-09-07 1984-05-01 National Research Development Corporation Stored program digital data processor
FR2440198A1 (fr) * 1978-11-06 1980-05-30 Medtronic Inc Stimulateur implantable
EP0011935B2 (en) * 1978-11-06 1991-05-22 Medtronic, Inc. Body stimulator programmer
US4365290A (en) * 1979-03-12 1982-12-21 Medtronic, Inc. Computer system with power control circuit
AU6606881A (en) * 1980-01-16 1981-07-23 Medtronic, Inc. Pacemaker
US4424812A (en) * 1980-10-09 1984-01-10 Cordis Corporation Implantable externally programmable microprocessor-controlled tissue stimulator
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
DE3153780C2 (de) * 1980-10-16 2003-04-03 Ela Medical Sa Verfahren zur Steuerung eines implantierbaren Herzschrittmachers
US4485818A (en) * 1980-11-14 1984-12-04 Cordis Corporation Multi-mode microprocessor-based programmable cardiac pacer
US4407288B1 (en) * 1981-02-18 2000-09-19 Mieczyslaw Mirowski Implantable heart stimulator and stimulation method
US4390022A (en) * 1981-05-18 1983-06-28 Intermedics, Inc. Implantable device with microprocessor control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557796A (en) * 1969-03-10 1971-01-26 Cordis Corp Digital counter driven pacer
DE2018256A1 (de) * 1970-04-10 1971-10-21 Dittberner K Elektronische Anordnung zur naturgetreuen Nachbildung der Übertragungseigenschaften biologischer Messgrössenaufnehmer (Receptoren) und zum künstlichen Ersatz biologischer Receptoren
US3833005A (en) * 1971-07-26 1974-09-03 Medtronic Inc Compared count digitally controlled pacemaker

Also Published As

Publication number Publication date
FR2366012B1 (xx) 1984-02-03
GB1587917A (en) 1981-04-15
IE45875L (en) 1978-03-29
SE7710869L (sv) 1978-03-30
JPS5342484A (en) 1978-04-17
FR2366012A1 (fr) 1978-04-28
IT1089836B (it) 1985-06-18
DE2738871A1 (de) 1978-03-30
CH627081A5 (en) 1981-12-31
CA1100580A (en) 1981-05-05
BE859086A (fr) 1978-03-28
NL7710571A (nl) 1978-03-31

Similar Documents

Publication Publication Date Title
CA1100580A (en) Heart pacer
GB742524A (en) Improvements in or relating to electronic digital computing machines
EP0406830B1 (en) Implantable cardiac device with dual clock control of microprocessor
US5504903A (en) Self-progamming of on-chip program memory for microcontroller at clock start-up
EP0388131B1 (en) Random number generator
JPH04336308A (ja) マイクロコンピュータ
WO1998054630A2 (en) Method and system for emulating a non-bond-out version of a microcontroller that has standard port means
EP0077844B1 (en) Pacemaker utilizing microprocessor dma for generating output pulse sequences
KR940002712A (ko) 프로세싱 시스템에 있어서의 개선된 외부 메모리 접근 제어
JPS634151B2 (xx)
GB2168560A (en) Cmos crystal oscillator
US6442428B1 (en) Implantable cardiac stimulation device having a programmable reconfigurable sequencer
JPS5816318A (ja) マイクロコンピユ−タ用安定化電源装置
JP3398788B2 (ja) クロック発生回路
JPH0831001B2 (ja) マイクロコンピュータ
JPS6431285A (en) Portable electronic equipment
JPH01260518A (ja) マイクロコンピュータ
JPS5943766B2 (ja) 半導体集積回路
SU619954A1 (ru) Устройство дл записи информации в накопитель
JPH0398186A (ja) Icカード用リーダライタ
JPS5965356A (ja) シングル・チツプ・マイクロコンピユ−タ
Gaggini et al. Mixed Microprocessor‐Random Logic Approach for Innovative Pacing Systems
Rajaraman A Microprocessor-Based Time Sequence Controller for Process Control Applications
JP2578359B2 (ja) 発振回路
Wittkampf et al. The importance of software programmable pacemakers: In vivo programming of a prototype device