CA2050088A1 - Implantable cardiac defibrillator with current leakage detecting means - Google Patents

Implantable cardiac defibrillator with current leakage detecting means

Info

Publication number
CA2050088A1
CA2050088A1 CA2050088A CA2050088A CA2050088A1 CA 2050088 A1 CA2050088 A1 CA 2050088A1 CA 2050088 A CA2050088 A CA 2050088A CA 2050088 A CA2050088 A CA 2050088A CA 2050088 A1 CA2050088 A1 CA 2050088A1
Authority
CA
Canada
Prior art keywords
capacitive means
current leakage
implantable cardiac
cardiac defibrillator
patient
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
CA2050088A
Other languages
French (fr)
Other versions
CA2050088C (en
Inventor
Benjamin D. Pless
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.)
Pacesetter Inc
Original Assignee
Benjamin D. Pless
Ventritex, Inc.
Pacesetter, 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 Benjamin D. Pless, Ventritex, Inc., Pacesetter, Inc. filed Critical Benjamin D. Pless
Publication of CA2050088A1 publication Critical patent/CA2050088A1/en
Application granted granted Critical
Publication of CA2050088C publication Critical patent/CA2050088C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3925—Monitoring; Protecting
    • A61N1/3931—Protecting, e.g. back-up systems
    • 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
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3925—Monitoring; Protecting
    • A61N1/3937—Monitoring output parameters
    • 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
    • A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
    • A61N1/39—Heart defibrillators
    • A61N1/3975—Power supply
    • A61N1/3981—High voltage charging circuitry
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/908—Patient protection from electric shock

Abstract

An implantable cardiac defibrillator is provided having a battery, capacitive means, means coupled to the battery for charging the capacitive means, and means for coupling the capacitive means to a patient's heart, for delivering a high voltage shock to the heart. Current leakage from the capacitive means is detected. If the current leakage exceeds a predetermined amount, charging of the capacitive means is terminated. In one embodiment, voltage at the patient is directly sensed. In another embodiment, the voltage across a resistance located in series with the patient is sensed. In another embodiment, a test charge is provided for a short interval. The capacitive means is sensed to determine excessive loss of energy after the test charge. If excessive loss of energy is determined, charging is terminated. <IMAGE>
CA002050088A 1990-10-11 1991-08-28 Implantable cardiac defibrillator with current leakage detecting means Expired - Fee Related CA2050088C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US597,204 1990-10-11
US07/597,204 US5163428A (en) 1990-10-11 1990-10-11 Implantable cardiac defibrillator with current leakage detecting means

Publications (2)

Publication Number Publication Date
CA2050088A1 true CA2050088A1 (en) 1992-04-12
CA2050088C CA2050088C (en) 1998-08-04

Family

ID=24390539

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002050088A Expired - Fee Related CA2050088C (en) 1990-10-11 1991-08-28 Implantable cardiac defibrillator with current leakage detecting means

Country Status (7)

Country Link
US (1) US5163428A (en)
EP (1) EP0480569B1 (en)
AT (1) ATE145831T1 (en)
CA (1) CA2050088C (en)
DE (1) DE69123429T2 (en)
DK (1) DK0480569T3 (en)
ES (1) ES2097189T3 (en)

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US9101765B2 (en) 1999-03-05 2015-08-11 Metacure Limited Non-immediate effects of therapy
US8019421B2 (en) 1999-03-05 2011-09-13 Metacure Limited Blood glucose level control
US8666495B2 (en) 1999-03-05 2014-03-04 Metacure Limited Gastrointestinal methods and apparatus for use in treating disorders and controlling blood sugar
US8346363B2 (en) 1999-03-05 2013-01-01 Metacure Limited Blood glucose level control
US6993385B1 (en) 1999-10-25 2006-01-31 Impulse Dynamics N.V. Cardiac contractility modulation device having anti-arrhythmic capabilities and a method of operating thereof
US7027863B1 (en) 1999-10-25 2006-04-11 Impulse Dynamics N.V. Device for cardiac therapy
AU1049901A (en) 1999-10-25 2001-05-08 Impulse Dynamics N.V. Cardiac contractility modulation device having anti-arrhythmic capabilities and a method of operating thereof
US6421563B1 (en) 2000-03-01 2002-07-16 Medtronic Physio-Control Manufacturing Corp. Solid-state multiphasic defibrillation circuit
US6847842B1 (en) 2000-05-15 2005-01-25 Cardiac Pacemakers, Inc. Method and apparatus for reducing early recurrence of atrial fibrillation with defibrillation shock therapy
KR100370164B1 (en) * 2000-12-20 2003-01-30 주식회사 하이닉스반도체 Pull-up Scheme Compensable Leakage Current in Bit Lines
US6898463B2 (en) * 2002-03-19 2005-05-24 Medtronic, Inc. Current monitor for an implantable medical device
US20030191505A1 (en) * 2002-04-09 2003-10-09 Mark Gryzwa Magnetic structure for feedthrough filter assembly
US7089057B2 (en) 2002-04-26 2006-08-08 Medtronic, Inc. Detection of possible failure of capacitive elements in an implantable medical device
GB2391566B (en) * 2002-07-31 2006-01-04 Schlumberger Holdings Multiple interventionless actuated downhole valve and method
US7372455B2 (en) 2003-02-10 2008-05-13 N-Trig Ltd. Touch detection for a digitizer
US7158825B1 (en) 2003-02-24 2007-01-02 Pacesetter, Inc. Implantable cardioverter defibrillator with leakage detection and prevention system
WO2004080533A1 (en) 2003-03-10 2004-09-23 Impulse Dynamics Nv Apparatus and method for delivering electrical signals to modify gene expression in cardiac tissue
US11439815B2 (en) 2003-03-10 2022-09-13 Impulse Dynamics Nv Protein activity modification
US8792985B2 (en) 2003-07-21 2014-07-29 Metacure Limited Gastrointestinal methods and apparatus for use in treating disorders and controlling blood sugar
US7719854B2 (en) 2003-07-31 2010-05-18 Cardiac Pacemakers, Inc. Integrated electromagnetic interference filters and feedthroughs
US11779768B2 (en) 2004-03-10 2023-10-10 Impulse Dynamics Nv Protein activity modification
US8352031B2 (en) 2004-03-10 2013-01-08 Impulse Dynamics Nv Protein activity modification
US8548583B2 (en) 2004-03-10 2013-10-01 Impulse Dynamics Nv Protein activity modification
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US7877139B2 (en) * 2006-09-22 2011-01-25 Cameron Health, Inc. Method and device for implantable cardiac stimulus device lead impedance measurement
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Also Published As

Publication number Publication date
DE69123429T2 (en) 1997-04-24
EP0480569A2 (en) 1992-04-15
DK0480569T3 (en) 1996-12-23
ATE145831T1 (en) 1996-12-15
DE69123429D1 (en) 1997-01-16
ES2097189T3 (en) 1997-04-01
CA2050088C (en) 1998-08-04
EP0480569A3 (en) 1992-10-21
EP0480569B1 (en) 1996-12-04
US5163428A (en) 1992-11-17

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Legal Events

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EEER Examination request
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