[go: up one dir, main page]

GB1425107A - Back-up battery arrangement for a heart pacer - Google Patents

Back-up battery arrangement for a heart pacer

Info

Publication number
GB1425107A
GB1425107A GB5027373A GB5027373A GB1425107A GB 1425107 A GB1425107 A GB 1425107A GB 5027373 A GB5027373 A GB 5027373A GB 5027373 A GB5027373 A GB 5027373A GB 1425107 A GB1425107 A GB 1425107A
Authority
GB
United Kingdom
Prior art keywords
pacer
source
diode
circuit
failure
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
Application number
GB5027373A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of GB1425107A publication Critical patent/GB1425107A/en
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
    • A61N1/378—Electrical supply

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)

Abstract

1425107 Heart pacer battery system AMERICAN OPTICAL CORP 29 Oct 1973 [27 Oct 1972] 50273/73 Heading A5R [Also in Division H2H] A heart pacer has connected across its pacer circuit in parallel two power sources one of which has a rapid terminal failure characteristic such as that obtaining in nuclear cells, the other having lower output voltage and a slow terminal failure characteristic there being a separate diode in series with each source. A heart pacer implantable in a body may comprise a circuit 10, characterised by an increase in pacer rate with falling power source voltage. A power source 2 having a rapid terminal failure rate may be a nuclear cell type giving 6.75v to supply the pacer through a diode 4 with 0.25v potential drop. A second power source which may comprise a lithium battery 6 with a solid inorganic electrolyte giving 5.4v, having a long shelf life and an operating life of 2 to 3 months is also connected to supply the pacer circuit through a diode 8 with a 0.25v potential drop. The implanted pacer circuit may be set to operate at approximately 72 beats per minute when taking power from the source 2, source 6 being isolated by the diode 8 which is reverse biased. On failure of the source 2 the diode 4 is reverse biased and the source 6 supplies power at 5.15v to the pacer circuit which, according to its characteristic, increases its beat rate to 80 per minute thus giving readily discernible indication of the failure of the main power source.
GB5027373A 1972-10-27 1973-10-29 Back-up battery arrangement for a heart pacer Expired GB1425107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30139672A 1972-10-27 1972-10-27

Publications (1)

Publication Number Publication Date
GB1425107A true GB1425107A (en) 1976-02-18

Family

ID=23163162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5027373A Expired GB1425107A (en) 1972-10-27 1973-10-29 Back-up battery arrangement for a heart pacer

Country Status (1)

Country Link
GB (1) GB1425107A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307520A1 (en) * 1975-04-17 1976-11-12 Univ Johns Hopkins IMPLANTABLE TISSUE STIMULATOR WITH RECHARGEABLE SOURCE OF ELECTRICAL ENERGY
US4096866A (en) * 1976-04-30 1978-06-27 The Johns Hopkins University Rechargeable body tissue stimulator with back-up battery and pulse generator
US4134408A (en) * 1976-11-12 1979-01-16 Research Corporation Cardiac pacer energy conservation system
EP1126539A2 (en) * 2000-02-16 2001-08-22 Wilson Greatbatch Ltd. Electrochemical battery for conversion of low rate energy into high rate energy by parallel discharging

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307520A1 (en) * 1975-04-17 1976-11-12 Univ Johns Hopkins IMPLANTABLE TISSUE STIMULATOR WITH RECHARGEABLE SOURCE OF ELECTRICAL ENERGY
US4096866A (en) * 1976-04-30 1978-06-27 The Johns Hopkins University Rechargeable body tissue stimulator with back-up battery and pulse generator
US4134408A (en) * 1976-11-12 1979-01-16 Research Corporation Cardiac pacer energy conservation system
EP1126539A2 (en) * 2000-02-16 2001-08-22 Wilson Greatbatch Ltd. Electrochemical battery for conversion of low rate energy into high rate energy by parallel discharging
EP1126539A3 (en) * 2000-02-16 2002-09-18 Wilson Greatbatch Ltd. Electrochemical battery for conversion of low rate energy into high rate energy by parallel discharging
US6627337B2 (en) 2000-02-16 2003-09-30 Wilson Greatbatch Ltd. Conversion of low rate energy into high rate energy by parallel discharging

Similar Documents

Publication Publication Date Title
HK3881A (en) Improvements in or relating to solar battery powered battery chargers and electric power supply sourges including solar batteries
ES396505A1 (en) Rapid charging system and method for sealed storage cells
GB1478910A (en) Body organ stimulating apparatus
SE399487B (en) ZINC ELECTRODE FOR STROMAL-BEACHING CELLS, SPECIAL ALKALINE ACCUMULATOR BATTERIES, AND METHODS MANUFACTURED THE SAME
GB1100568A (en) Improvements in or relating to storage batteries
GB1425107A (en) Back-up battery arrangement for a heart pacer
GB1243109A (en) Use of unilluminated solar cells as shunt diodes for a solar array
US3789854A (en) Dual mode cardiac pacer power source
ES8703064A1 (en) Electrochemical generator with negative active material on the basis of an alkali or alkaline earth metal.
GB936234A (en) Improvements in or relating to electrodes for electric cells or batteries
GB1254992A (en) Improvements in electrochemical direct-current transformers
ES2038195T3 (en) AUTONOMOUS ELECTRICAL SUPPLY SYSTEM.
GB1007788A (en) Improvements in and relating to rechargeable cells
JPS6439239A (en) Power converter system
GB1362039A (en) Process for fixing the relative states of charge of the elec trodes in an alkaline storage cell
GB1312660A (en) Electro-chemical electric energy sources
FR2068146A5 (en) Rechargeable lithium/copper sulphate cell
GB1001601A (en) Electrodes for lead accumulators
van der Grinten et al. Energy Systems for Implantable Circulatory Assist Devices
JPS5617082A (en) Wrist watch provided with solar cell
JPS6218876B2 (en)
GB884793A (en) Improvements in or relating to electricity supply devices
THALLER Electrically rechargeable REDOX flow cell[Patent]
JPS57115773A (en) Abnormal electrodeposition protector of layer-built cell
SU703902A1 (en) Device for pulse modulation

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee