CA2173323A1 - Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias - Google Patents

Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias

Info

Publication number
CA2173323A1
CA2173323A1 CA002173323A CA2173323A CA2173323A1 CA 2173323 A1 CA2173323 A1 CA 2173323A1 CA 002173323 A CA002173323 A CA 002173323A CA 2173323 A CA2173323 A CA 2173323A CA 2173323 A1 CA2173323 A1 CA 2173323A1
Authority
CA
Canada
Prior art keywords
time constant
delivering
signal
shock
reached
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
CA002173323A
Other languages
French (fr)
Other versions
CA2173323C (en
Inventor
Raymond E. Ideker
Gregory P. Walcott
Stephen J. Hahn
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.)
Cardiac Pacemakers Inc
Duke University
Original Assignee
Raymond E. Ideker
Gregory P. Walcott
Stephen J. Hahn
Duke University
Cardiac Pacemakers, 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 Raymond E. Ideker, Gregory P. Walcott, Stephen J. Hahn, Duke University, Cardiac Pacemakers, Inc. filed Critical Raymond E. Ideker
Publication of CA2173323A1 publication Critical patent/CA2173323A1/en
Application granted granted Critical
Publication of CA2173323C publication Critical patent/CA2173323C/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
    • A61N1/3937—Monitoring output parameters

Abstract

The present invention provides apparatus and methods for delivering an optimum electrical shock in treating cardiac arrhyth-mias. The apparatus comprises means for producing an electrical waveform signal at at least two electrodes. The voltage or current of the signal is then detected to determine the signal time constant.
The signal time constant is then used in conjunction with a model time constant to determine when the peak amplitude is reached. The waveform is then interrupted when the peak amplitude is reached.
Also provided are methods of selecting a cardiac defibrillator by measuring the impedance of implanted electrodes and then select-ing a defibrillator having a capacitor which provides an RC time constant equal to that of a model time constant.
CA002173323A 1993-10-06 1994-09-30 Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias Expired - Fee Related CA2173323C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US132,373 1987-12-15
US08/132,373 US5540723A (en) 1993-10-06 1993-10-06 Method and apparatus for delivering an optimum shock duration in treating cardiac arrhythmias
PCT/US1994/011153 WO1995009673A1 (en) 1993-10-06 1994-09-30 Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias

Publications (2)

Publication Number Publication Date
CA2173323A1 true CA2173323A1 (en) 1995-04-13
CA2173323C CA2173323C (en) 2005-09-27

Family

ID=22453721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002173323A Expired - Fee Related CA2173323C (en) 1993-10-06 1994-09-30 Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias

Country Status (7)

Country Link
US (2) US5540723A (en)
EP (2) EP0722349B1 (en)
JP (1) JPH09506791A (en)
AU (1) AU7925694A (en)
CA (1) CA2173323C (en)
DE (2) DE69432870D1 (en)
WO (1) WO1995009673A1 (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593427A (en) * 1993-08-06 1997-01-14 Heartstream, Inc. Electrotherapy method
WO1997031680A1 (en) * 1996-03-01 1997-09-04 Heartstream, Inc. Electrotherapy method and apparatus
US5899924A (en) 1996-04-12 1999-05-04 Survivalink Corporation Single capacitor truncated damped sinusoidal defibrillation waveform
EP0892656A4 (en) * 1996-04-12 2000-08-30 Survivalink Corp External defibrillator having low capacitance and small time constant
US5991658A (en) * 1996-07-01 1999-11-23 Survivalink Corporation Continual waveform shape reforming method and apparatus for transchest resistance dynamics
US6411846B1 (en) 1999-08-26 2002-06-25 Survivalink Corporation Method and apparatus for delivering a biphasic defibrillation pulse with variable energy
US6263239B1 (en) 1996-07-01 2001-07-17 Survivalink Corporation Method and apparatus for determining the second phase of defibrillator devices
US5968080A (en) * 1996-07-01 1999-10-19 Survivalink Corporation Method for determining the second phase of external defibrillator devices
US5873893A (en) * 1997-03-05 1999-02-23 Physio-Control Corporation Method and apparatus for verifying the integrity of an output circuit before and during application of a defibrillation pulse
US6963773B2 (en) 1997-03-05 2005-11-08 Medtronic Physio-Control Manufacturing Corp. H-bridge circuit for generating a high-energy biphasic waveform in an external defibrillator using single SCR and IGBT switches in an integrated package
US5824017A (en) * 1997-03-05 1998-10-20 Physio-Control Corporation H-bridge circuit for generating a high-energy biphasic waveform in an external defibrillator
US6175765B1 (en) 1997-03-05 2001-01-16 Medtronic Physio-Control Manufacturing Corp. H-bridge circuit for generating a high-energy biphasic waveform in an external defibrillator
WO1998044990A1 (en) * 1997-04-08 1998-10-15 Survivlink Corporation Aami specification optimized truncated exponential waveform
JP2001522272A (en) * 1997-04-18 2001-11-13 フィジオ−コントロール・マニュファクチャリング・コーポレーション Defibrillation removal method and device
US6112117A (en) 1997-05-06 2000-08-29 Cardiac Pacemakers, Inc. Method and apparatus for treating cardiac arrhythmia using electrogram features
US6152954A (en) 1998-07-22 2000-11-28 Cardiac Pacemakers, Inc. Single pass lead having retractable, actively attached electrode for pacing and sensing
US6539255B1 (en) 1998-07-16 2003-03-25 Cardiac Science, Inc. Full-tilt exponential defibrillation waveform
US6463334B1 (en) 1998-11-02 2002-10-08 Cardiac Pacemakers, Inc. Extendable and retractable lead
US6501990B1 (en) 1999-12-23 2002-12-31 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US6212429B1 (en) * 1998-10-13 2001-04-03 Physio-Control Manufacturing Corporation Method and apparatus for converting a monophasic defibrillator to a biphasic defibrillator
US6208895B1 (en) 1998-10-13 2001-03-27 Physio-Control Manufacturing Corporation Circuit for performing external pacing and biphasic defibrillation
US6317635B1 (en) * 1999-06-30 2001-11-13 Dennis E. Ochs Sensor responsive electrotherapy apparatus
US6442426B1 (en) * 1999-12-01 2002-08-27 Pacesetter, Inc. Implantable ventricular cadioverter-defibrillator employing atrial pacing for preventing a trial fibrillation form ventricular cardioversion and defibrillation shocks
DE10029112A1 (en) * 2000-06-14 2002-01-17 Werner Irnich Defibrillator with means for generating defibrillation pulses with at least two capacitors in different configurations and a corresponding method
US7369890B2 (en) 2000-11-02 2008-05-06 Cardiac Pacemakers, Inc. Technique for discriminating between coordinated and uncoordinated cardiac rhythms
US6689117B2 (en) 2000-12-18 2004-02-10 Cardiac Pacemakers, Inc. Drug delivery system for implantable medical device
US6445953B1 (en) 2001-01-16 2002-09-03 Kenergy, Inc. Wireless cardiac pacing system with vascular electrode-stents
WO2003047685A2 (en) * 2001-12-03 2003-06-12 Medtronic, Inc. Control of arbitrary waveforms for constant delivered energy
US6965796B2 (en) 2002-03-11 2005-11-15 Medtronic Physio-Control Manufacturing Corp. Method and apparatus for self-test of defibrillation and pacing circuits including a patient isolation switch
US7096062B2 (en) 2002-03-11 2006-08-22 Medtronic Physio-Control Manufacturing Corp. Method for self-test of defibrillation and pacing circuits including a patient isolation switch
US8417327B2 (en) * 2002-06-20 2013-04-09 Physio-Control, Inc. Variable frequency impedance measurement
US6968230B2 (en) 2002-06-26 2005-11-22 Medtronic Physio-Control Manufacturing Corp H-bridge circuit for generating a high-energy biphasic and external pacing waveform in an external defibrillator
US20050010252A1 (en) * 2003-07-08 2005-01-13 Ideker Raymond E. Methods, systems and computer program products for defibrillation by applying stimulus to a fastest activating region of a heart
US8060219B2 (en) 2004-12-20 2011-11-15 Cardiac Pacemakers, Inc. Epicardial patch including isolated extracellular matrix with pacing electrodes
US7981065B2 (en) 2004-12-20 2011-07-19 Cardiac Pacemakers, Inc. Lead electrode incorporating extracellular matrix
EP1866029A1 (en) * 2005-03-29 2007-12-19 Koninklijke Philips Electronics N.V. Defibrillator with impedance-compensated energy delivery
US7283871B1 (en) 2005-04-07 2007-10-16 Pacesetter, Inc. Self adjusting optimal waveforms
US7398122B1 (en) * 2005-04-07 2008-07-08 Pacesetter, Inc. Self adjusting optimal waveforms
US7457662B2 (en) * 2005-09-09 2008-11-25 Cardiac Science Corporation Method and apparatus for variable capacitance defibrillation
US8150511B2 (en) * 2006-06-29 2012-04-03 Pacesetter, Inc. Systems and methods for determining an optimal defibrillation shock waveform
US8983598B2 (en) * 2006-10-04 2015-03-17 Cardiac Pacemakers, Inc. System for neurally-mediated anti-arrhythmic therapy
US9352161B2 (en) * 2006-10-26 2016-05-31 Boston Scientific Neuromodulation Corporation Method of maintaining intensity output while adjusting pulse width or amplitude
WO2012003124A2 (en) * 2010-07-01 2012-01-05 Cardiac Pacemakers, Inc. Therapy circuit protection for implantable medical device
US9014807B2 (en) 2010-12-20 2015-04-21 Cardiac Pacemakers, Inc. Lead fault detection for implantable medical device
US9126055B2 (en) 2012-04-20 2015-09-08 Cardiac Science Corporation AED faster time to shock method and device
US8868178B2 (en) 2012-12-11 2014-10-21 Galvani, Ltd. Arrhythmia electrotherapy device and method with provisions for mitigating patient discomfort
US20170056682A1 (en) 2014-02-24 2017-03-02 Element Science, Inc. External defibrillator
US10953234B2 (en) 2015-08-26 2021-03-23 Element Science, Inc. Wearable devices
CN111263655B (en) * 2017-10-27 2024-02-06 深圳迈瑞生物医疗电子股份有限公司 Defibrillator, state detection management method, state detection management system and device
EP3863511A4 (en) 2018-10-10 2022-04-06 Element Science, Inc. Wearable medical device with disposable and reusable components

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727877A (en) 1984-12-18 1988-03-01 Medtronic, Inc. Method and apparatus for low energy endocardial defibrillation
US4637397A (en) 1985-05-30 1987-01-20 Case Western Reserve University Triphasic wave defibrillation
US4641656A (en) 1985-06-20 1987-02-10 Medtronic, Inc. Cardioversion and defibrillation lead method
US4800883A (en) 1986-04-02 1989-01-31 Intermedics, Inc. Apparatus for generating multiphasic defibrillation pulse waveform
US4768512A (en) 1986-05-13 1988-09-06 Mieczyslaw Mirowski Cardioverting system and method with high-frequency pulse delivery
US4821723A (en) * 1987-02-27 1989-04-18 Intermedics Inc. Biphasic waveforms for defibrillation
US4827932A (en) 1987-02-27 1989-05-09 Intermedics Inc. Implantable defibrillation electrodes
US5179946A (en) * 1989-12-28 1993-01-19 Telectronics Pacing Systems, Inc. Apparatus and method for arrhythmia detection by variations in the transcardiac impedance between defibrillation patches
US5163428A (en) * 1990-10-11 1992-11-17 Ventritex, Inc. Implantable cardiac defibrillator with current leakage detecting means
US5230336A (en) * 1991-08-16 1993-07-27 Ventritex, Inc. Method and apparatus for impedance based automatic pulse duration adjustment for defibrillation shock delivery
US5411525A (en) * 1992-01-30 1995-05-02 Cardiac Pacemakers, Inc. Dual capacitor biphasic defibrillator waveform generator employing selective connection of capacitors for each phase
US5222501A (en) * 1992-01-31 1993-06-29 Duke University Methods for the diagnosis and ablation treatment of ventricular tachycardia
US5224476A (en) * 1992-02-24 1993-07-06 Duke University Method and apparatus for controlling fibrillation or tachycardia
US5385575A (en) * 1992-03-24 1995-01-31 Angeion Corporation Implantable cardioverter defibrillator having variable output capacitance
US5607454A (en) 1993-08-06 1997-03-04 Heartstream, Inc. Electrotherapy method and apparatus
US5593427A (en) 1993-08-06 1997-01-14 Heartstream, Inc. Electrotherapy method

Also Published As

Publication number Publication date
US6643545B2 (en) 2003-11-04
DE69422052T2 (en) 2000-08-03
US20010053925A1 (en) 2001-12-20
JPH09506791A (en) 1997-07-08
EP0782870B1 (en) 2003-06-25
CA2173323C (en) 2005-09-27
AU7925694A (en) 1995-05-01
EP0782870A3 (en) 1998-04-01
EP0722349A1 (en) 1996-07-24
US5540723A (en) 1996-07-30
WO1995009673A1 (en) 1995-04-13
DE69432870D1 (en) 2003-07-31
DE69422052D1 (en) 2000-01-13
EP0722349B1 (en) 1999-12-08
EP0782870A2 (en) 1997-07-09

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Effective date: 20131001