FR2241287A1 - Circuit for heart implant pacemaker - reduced charging time of output capacitor supplying stimulation pulses - Google Patents

Circuit for heart implant pacemaker - reduced charging time of output capacitor supplying stimulation pulses

Info

Publication number
FR2241287A1
FR2241287A1 FR7427889A FR7427889A FR2241287A1 FR 2241287 A1 FR2241287 A1 FR 2241287A1 FR 7427889 A FR7427889 A FR 7427889A FR 7427889 A FR7427889 A FR 7427889A FR 2241287 A1 FR2241287 A1 FR 2241287A1
Authority
FR
France
Prior art keywords
circuit
charging time
stimulation pulses
capacitor
output capacitor
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Withdrawn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
FR7427889A
Other languages
French (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.)
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 FR2241287A1 publication Critical patent/FR2241287A1/en
Withdrawn legal-status Critical Current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
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • 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

Landscapes

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

Abstract

A circuit for an artificial cardiac pacemaker which supplies periodic stimulation pulses, with an output capacitor preceding the implanted electrode, emits a pulse of opposite polarity immediately after each stimulating pulse so as to discharge the capacitor rapidly, i.e. within 30 m sec. A set of alternative circuits are shown using a switching transistor arrangement to reduce the charging time of the capacitor in this way. Alternatively, the capacitor is connected to the junction point of an inductance in the H.T. supply and the output transistor. This inductance has a value between 200 and 700 mH, preferably 400 mH.
FR7427889A 1973-08-20 1974-08-12 Circuit for heart implant pacemaker - reduced charging time of output capacitor supplying stimulation pulses Withdrawn FR2241287A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732342030 DE2342030A1 (en) 1973-08-20 1973-08-20 ELECTRIC PACEMAKER

Publications (1)

Publication Number Publication Date
FR2241287A1 true FR2241287A1 (en) 1975-03-21

Family

ID=5890232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7427889A Withdrawn FR2241287A1 (en) 1973-08-20 1974-08-12 Circuit for heart implant pacemaker - reduced charging time of output capacitor supplying stimulation pulses

Country Status (3)

Country Link
DE (1) DE2342030A1 (en)
FR (1) FR2241287A1 (en)
SE (1) SE7410534L (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377190A1 (en) * 1977-01-12 1978-08-11 Medtronic Bv PACEMAKER
EP0000989A1 (en) * 1977-08-19 1979-03-07 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Demand pacer having reduced recovery time
EP0057944A2 (en) * 1981-02-05 1982-08-18 Vitafin N.V. Apparatus and method for physiological stimulation and detection of evoked response
FR2586932A1 (en) * 1985-09-12 1987-03-13 Bertin & Cie Device for electrical stimulation of biological tissues
FR2587624A1 (en) * 1985-09-26 1987-03-27 Genin Jacques Method and circuits for controlling implanted electrodes for neurophysiological stimulation
WO1988003822A1 (en) * 1986-11-20 1988-06-02 C.B. Bioelettronica S.R.L. Apparatus for transoesophageal cardiac stimulation implemented with a minimized energy threshold, and a relative method of stimulation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044775A (en) * 1976-04-29 1977-08-30 Medtronic, Inc. Implantable receiver circuit
DE3130872A1 (en) * 1981-08-04 1983-02-24 Siemens AG, 1000 Berlin und 8000 München IMPLANTABLE HEART PACEMAKER
DE3501169C2 (en) * 1985-01-11 1994-06-09 Biotronik Mess & Therapieg Pacemaker
US4821724A (en) * 1986-08-01 1989-04-18 Telectronics N.V. Pacing pulse compensation
EP0453589B1 (en) * 1990-04-24 1994-12-28 Pacesetter AB Tissue stimulating device
DE4013048B4 (en) * 1990-04-24 2004-07-08 St. Jude Medical Ab Arrangement for tissue stimulation
DE4231603A1 (en) * 1992-09-17 1994-03-24 Biotronik Mess & Therapieg Pacemaker system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377190A1 (en) * 1977-01-12 1978-08-11 Medtronic Bv PACEMAKER
EP0000989A1 (en) * 1977-08-19 1979-03-07 BIOTRONIK Mess- und Therapiegeräte GmbH & Co Ingenieurbüro Berlin Demand pacer having reduced recovery time
EP0057944A2 (en) * 1981-02-05 1982-08-18 Vitafin N.V. Apparatus and method for physiological stimulation and detection of evoked response
EP0057944A3 (en) * 1981-02-05 1982-08-25 Vitafin N.V. Apparatus and method for physiological stimulation and detection of evoked response
FR2586932A1 (en) * 1985-09-12 1987-03-13 Bertin & Cie Device for electrical stimulation of biological tissues
FR2587624A1 (en) * 1985-09-26 1987-03-27 Genin Jacques Method and circuits for controlling implanted electrodes for neurophysiological stimulation
WO1988003822A1 (en) * 1986-11-20 1988-06-02 C.B. Bioelettronica S.R.L. Apparatus for transoesophageal cardiac stimulation implemented with a minimized energy threshold, and a relative method of stimulation

Also Published As

Publication number Publication date
SE7410534L (en) 1975-02-21
DE2342030A1 (en) 1975-03-27

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Legal Events

Date Code Title Description
ST Notification of lapse