WO2003011391B1 - Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device - Google Patents

Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device

Info

Publication number
WO2003011391B1
WO2003011391B1 PCT/US2002/023779 US0223779W WO03011391B1 WO 2003011391 B1 WO2003011391 B1 WO 2003011391B1 US 0223779 W US0223779 W US 0223779W WO 03011391 B1 WO03011391 B1 WO 03011391B1
Authority
WO
WIPO (PCT)
Prior art keywords
atp
therapy
mode
criteria
control circuit
Prior art date
Application number
PCT/US2002/023779
Other languages
French (fr)
Other versions
WO2003011391A3 (en
WO2003011391A2 (en
Inventor
Paul J Degroot
Kevin T Ousdigian
Vasant Padmanabhan
Paul G Krause
Vinod Sharma
Original Assignee
Medtronic 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 Medtronic Inc filed Critical Medtronic Inc
Priority to CA002454235A priority Critical patent/CA2454235A1/en
Priority to JP2003516621A priority patent/JP4262596B2/en
Priority to EP02763358A priority patent/EP1418982B1/en
Publication of WO2003011391A2 publication Critical patent/WO2003011391A2/en
Publication of WO2003011391A3 publication Critical patent/WO2003011391A3/en
Publication of WO2003011391B1 publication Critical patent/WO2003011391B1/en

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
    • A61N1/3621—Heart stimulators for treating or preventing abnormally high heart rate
    • A61N1/3622—Heart stimulators for treating or preventing abnormally high heart rate comprising two or more electrodes co-operating with different heart regions
    • 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
    • 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
    • A61N1/3956—Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
    • 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
    • A61N1/3956—Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
    • A61N1/3962—Implantable devices for applying electric shocks to the heart, e.g. for cardioversion in combination with another heart therapy
    • A61N1/39622—Pacing therapy
    • 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
    • A61N1/3987—Heart defibrillators characterised by the timing or triggering of the shock
    • 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
    • A61N1/368—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions
    • A61N1/3688—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions configured for switching the pacing mode, e.g. from AAI to DDD

Abstract

A system and method for delivering both anti-tachy pacing (ATP) therapy and high-voltage shock therapy in response to detection of abnormal cardiac rhythms is disclosed. The system controls the time between delivering ATP therapy and the charging of high-voltage capacitors in preparation for shock delivery based on a predetermined set of criteria. In one embodiment, the inventive system operates in an ATP during Capacitor Charging (ATP-DCC) mode wherein all, or substantially all, of the ATP therapy is delivered during charging of the high-voltage capacitors. Based on evaluation of the predetermined set of criteria, the system may switch to an additional ATP before Capacitor Charging (ATP-BCC) mode, wherein substantially all of the ATP therapy is delivered prior to charging of the high-voltage capacitor. According to one aspect of the invention, the predetermined set of criteria is based, at least in part, on the effectiveness of previously-delivered ATP therapy.

Claims

AMENDED CLAIMS[received by the International Bureau on 24 October 2003 (24.10.03); original claims 1-30 replaced by amended claims 1-30] +STATEMENTWhat is claimed is:
1. A system for use in controlling electrical therapy delivered to a heart, characterized by: a first circuit that is charged to deliver high-voltage electrical stimulation to the heart; a second circuit to deliver anti-tachy pacing (ATP) therapy to the heart; a control circuit coupled to the first and second circuits to adjust a time of charging of the irst circuit relative to a time of delivering ATP therapy based on predetermined criiteria.
2. The system of Claim 1 , characterized in that the control circuit includes means for operating in an ATP-DCC mode to initiate charging of the first circuit during delivery of the ATP therapy.
3. The system of Claim 2, characterized in that the control circuit includes means for operating in an ATP-BCC mode to initiate charging of the first circuit after the delivery of the ATP therapy.
4. The system of Claim 3, characterized in that the control circuit includes means for transitioning between the ATP-BCC mode and the ATP-DCC mode based on predetermined criteria related to the effectiveness of the previously-delivered ATP therapy.
5. The system of Claim 4, characterized in that the control circuit includes means for transitioning froni the ATP-BCC mode to the ATP-DCC mode based on a first parameter indicating a number of f iled ATP therapy delivery attempts while operating in ATP- BCC mode.
6. The system of Claim 5, characterized in that the first parameter is measured as a number of failed ATP attempts out of a total number of ATP therapy attempts delivered.
25
7. The system of Claim 5, characterized in that the control circuit includes means for transitioning fromjthe ATP-DCC mode to the ATP-BCC mode based on a second parameter indicating a number of successful ATP therapy delivery attempts while operating in ATP-DCC mode.
8. The system of Claim 7, and further characterized by a storage device coupled to the control circuit to store the first and second parameters, and characterized in that at least one of the first and second parameters are programmable.
9. The system of Claim 7, characterized in that the second parameter is measured as a number of successful ATP attempts out of a total number of ATP therapy attempts delivered.
10. The system of Claim 7, and fuπher characterized by at least one electrode coupled to the control circuit to sense cardiac rhythms, and a processing circuit coupled to the control circuit to analyze types of the cardiac rhythms, and characterized in that the predetermined cπteria takes into account the types of the cardiac rhythms occurring in the heart.
11. The system of Claim 10, characterized in that the control circuit includes means for utilizing different values for the first and second parameters, each of the values being respectively associated with a type of cardiac rhythm occurring during delivery of the ATP therapy.
12. The system of Claim 1, and further characterized by a storage device coupled to the control circuit to store the predetermined criteria, and characterized in that the predetermined criteria is programmably selected to be specific to a given patient.
13. The system of Claim 1 , and farther characterized by at least one electrode coupled to the control circuit capable of detecting rhythms of the heart, and characterized in that the predetermined criteria is based on a length of one or more of the detected rhythms of the heart.
14. The system of Claim 10, characterized in that the control circuit further includes means for adjusting the time of charging of the first circuit relative to the time of delivering ATP therapy based on a frequency of occurrence of one or more of the cardiac rhythms.
15. The systerh of Claim 14, characterized in that the control circuit includes means for transitioning from the ATP-DCC mode to the ATP-BCC mode based on a detection of VT storms, characterized in that a predetermined number of NT rhythms are detected within a predetermined period of time.
16. The system of Claim 10, characterized in that the predetermined criteria includes criteria associated with a change in a type of cardiac rhythm occurring prior to the delivery of the ATP therapy.
17. The system of Claim 16, characterized in that the control circuit includes means for transitioning from the ATP-BCC mode to the ATP-DCC mode based on the criteria associated with ichange in a type of cardiac rhythm occurring during the delivery of the ATP therapy.
18. A method; for use in delivering electrical stimulation to a heart, characterized by the steps of: a.) delivering anti-tachy pacing (ATP) therapy to a patient's heart; b.) charging a high-voltage capacitor in preparation to deliver high-voltage electrical stimulation to the heart; and c.) controlling a time of performing step b.) in relation to a time of performing step a.) based on ,a predetermined set of criteria.
27
19. The method of Claim 18, characterized in that the predetermined set of criteria is programmable, and further characterized by the step of prograir-rning the predetermined set of criteria.
20. The method of Claim 18, characterized in that step c.) includes operating in a ATP-DCC mode characterized in that substantially all of step a.) is performed during step b.).
21. The method of Claim 20, characterized in that step c.) includes switching from the ATP-DCC mode to a ATP-BCC mode characterized in that substantially all of step a.) is performed before step b.) is performed, the switching being based on the predetermined set of criteria.
22. The method of Claim 21 , and further characterized by monitoring effectiveness of the ATP therapy in terminating abnormal cardiac rhythms; and characterized in that step c.) is performed based on the predetermined set of criteria, which takes into account the effectiveness of the ATP therapy in terminating abnormal cardiac rhythms.
23. The method of Claim 22, characterized in that step c.) further includes switching from ATP-BCC txiode to ATP-DCC mode based on the predetennined set of criteria.
24. The method of Claim 23 , characterized in that the switching from ATP-B CC mode to ATP-DCC mode occurs after unsuccessfully delivering ATP therapy a first predetermined number of times while in ATP-BCC mode.
25. The method of Claim 24, characterized in that the switching from ATP-DCC mode to ATP-BCC mode occurs after successfully delivering ATP therapy a second predetermined number of times while in ATP-BCC mode.
28
26. The method of Claim 21, and further characterized by analyzing morphology of cardiac rhythms detected in the heart; and characterizbd in that the predetermined set of criteria in step c) is based on the morphology of cardiac rhythms detected in the heart.
27. The metliod of Claim 26, characterized in that step c.) further includes switching from ATP-DCC mode to ATP-BCC mode based on a frequency of occurrence of predetermined ones of the cardiac rhythms detected in the heart.
28. The metliqd of Claim 27, characterized in that step c.) further includes switching from ATP-DCC mode to ATP-BCC mode based on detection of NT storms, characterized in that a predetermined number of ventricular tachycardia (NT) episodes are detected within a predetermined period of time.
29. The method of Claim 26, characterized in that step c.) further includes switching from the ATP-BCC mode to the ATP-DCC mode based on a change in the morphology of the cardiac rhythms detected in the heart.
30. The method of Claim 22, and further characterized by discontinuing step a.) after unsuccessfully delivering ATP therapy a predetermined number of times.
29
PCT/US2002/023779 2001-07-30 2002-07-25 Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device WO2003011391A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002454235A CA2454235A1 (en) 2001-07-30 2002-07-25 Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
JP2003516621A JP4262596B2 (en) 2001-07-30 2002-07-25 Method and apparatus for controlling the delivery of high voltage and anti-tachycardia pacing therapy in an implantable medical device
EP02763358A EP1418982B1 (en) 2001-07-30 2002-07-25 Apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/918,224 US6718204B2 (en) 2001-07-30 2001-07-30 Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
US09/918,224 2001-07-30

Publications (3)

Publication Number Publication Date
WO2003011391A2 WO2003011391A2 (en) 2003-02-13
WO2003011391A3 WO2003011391A3 (en) 2003-10-16
WO2003011391B1 true WO2003011391B1 (en) 2003-12-18

Family

ID=25440015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/023779 WO2003011391A2 (en) 2001-07-30 2002-07-25 Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device

Country Status (5)

Country Link
US (3) US6718204B2 (en)
EP (1) EP1418982B1 (en)
JP (1) JP4262596B2 (en)
CA (1) CA2454235A1 (en)
WO (1) WO2003011391A2 (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6718204B2 (en) * 2001-07-30 2004-04-06 Medtronic, Inc. Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
US6731982B1 (en) * 2001-10-19 2004-05-04 Pacesetter, Inc. Anti-tachycardia pacing methods and devices
US7149577B2 (en) * 2002-12-02 2006-12-12 Medtronic, Inc. Apparatus and method using ATP return cycle length for arrhythmia discrimination
US7107098B2 (en) * 2003-02-20 2006-09-12 Medtronic, Inc. Method and apparatus for generation and selection of tachycardia therapy hierarchy
US7277750B2 (en) * 2004-04-02 2007-10-02 Cardiac Pacemakers, Inc. Method and apparatus for anti-tachycardia pacing and defibrillation
US7151962B2 (en) * 2004-04-29 2006-12-19 Medtronic, Inc. Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
US7184831B2 (en) * 2004-04-29 2007-02-27 Medtronic, Inc. Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
US7317942B2 (en) 2004-05-05 2008-01-08 Medtronic, Inc. Dynamic discrimination utilizing anti-tachy pacing therapy in an implantable medical device
US7477942B2 (en) * 2004-08-02 2009-01-13 Cardiac Pacemakers, Inc. ATP therapy for tachyarrhythmias in VF zone
US7280869B2 (en) * 2004-12-03 2007-10-09 Medtronic, Inc. Arrhythmia termination detection based on beat pattern
US8055340B2 (en) 2005-05-05 2011-11-08 Cardiac Pacemakers, Inc. Method and device for comprehensive anti-tachyarrhythmia therapy
US7933650B2 (en) * 2006-02-16 2011-04-26 Cardiac Pacemakers, Inc. Method and apparatus for selecting and timing anti-tachyarrhythmia pacing using cardiac signal morphology
US8255049B2 (en) * 2006-05-08 2012-08-28 Cardiac Pacemakers, Inc. Method and device for providing anti-tachyarrhythmia therapy
DE102006023517A1 (en) * 2006-05-19 2007-11-22 Biotronik Crm Patent Ag cardiac stimulator
US8076305B2 (en) * 2006-11-30 2011-12-13 Medtronic, Inc. Biological pacemakers including mutated hyperpolarization-activated cyclic nucleotide-gated (HCN) channels
US7945324B2 (en) * 2008-06-30 2011-05-17 Data Sciences International, Inc. Pressure sensing lead systems for implantable stimulators
US20110144028A1 (en) * 2009-12-11 2011-06-16 Vinod Sharma Modulating cellular electrophysiology
US8639323B2 (en) 2010-11-01 2014-01-28 Medtronic, Inc. System and apparatus to monitor biopacemaker maturation
US8868178B2 (en) 2012-12-11 2014-10-21 Galvani, Ltd. Arrhythmia electrotherapy device and method with provisions for mitigating patient discomfort
EP2674194A3 (en) 2013-10-08 2014-01-08 BIOTRONIK SE & Co. KG Implantable cardioverter-defibrillator with means for delivering a pulse train or a shock
US9278226B2 (en) * 2014-03-05 2016-03-08 Medtronic, Inc. Shock therapy for monomorphic detected ventricular tachycardia
US9526908B2 (en) 2014-04-01 2016-12-27 Medtronic, Inc. Method and apparatus for discriminating tachycardia events in a medical device
US10376705B2 (en) 2014-04-01 2019-08-13 Medtronic, Inc. Method and apparatus for discriminating tachycardia events in a medical device
US9808640B2 (en) 2014-04-10 2017-11-07 Medtronic, Inc. Method and apparatus for discriminating tachycardia events in a medical device using two sensing vectors
US9352165B2 (en) 2014-04-17 2016-05-31 Medtronic, Inc. Method and apparatus for verifying discriminating of tachycardia events in a medical device having dual sensing vectors
US9795312B2 (en) 2014-04-24 2017-10-24 Medtronic, Inc. Method and apparatus for adjusting a blanking period for selecting a sensing vector configuration in a medical device
US10252067B2 (en) 2014-04-24 2019-04-09 Medtronic, Inc. Method and apparatus for adjusting a blanking period during transitioning between operating states in a medical device
US10278601B2 (en) 2014-04-24 2019-05-07 Medtronic, Inc. Method and apparatus for selecting a sensing vector configuration in a medical device
US10244957B2 (en) 2014-04-24 2019-04-02 Medtronic, Inc. Method and apparatus for selecting a sensing vector configuration in a medical device
US9610025B2 (en) 2014-07-01 2017-04-04 Medtronic, Inc. Method and apparatus for verifying discriminating of tachycardia events in a medical device having dual sensing vectors
US10463866B2 (en) 2014-07-11 2019-11-05 Cardiac Pacemakers, Inc. Systems and methods for treating cardiac arrhythmias
WO2016126613A1 (en) 2015-02-06 2016-08-11 Cardiac Pacemakers, Inc. Systems and methods for treating cardiac arrhythmias
US10220213B2 (en) 2015-02-06 2019-03-05 Cardiac Pacemakers, Inc. Systems and methods for safe delivery of electrical stimulation therapy
US9579512B2 (en) 2015-03-24 2017-02-28 Medtronic, Inc. Techniques for minimizing current drain in an implantable medical device
US10758737B2 (en) 2016-09-21 2020-09-01 Cardiac Pacemakers, Inc. Using sensor data from an intracardially implanted medical device to influence operation of an extracardially implantable cardioverter
US10751541B2 (en) 2017-08-14 2020-08-25 Medtronic, Inc. Demand driven capacitor charging for cardiac pacing
CN111107899B (en) 2017-09-20 2024-04-02 心脏起搏器股份公司 Implantable medical device with multiple modes of operation

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407288B1 (en) 1981-02-18 2000-09-19 Mieczyslaw Mirowski Implantable heart stimulator and stimulation method
US4428378A (en) 1981-11-19 1984-01-31 Medtronic, Inc. Rate adaptive pacer
US4830006B1 (en) * 1986-06-17 1997-10-28 Intermedics Inc Implantable cardiac stimulator for detection and treatment of ventricular arrhythmias
US4821723A (en) 1987-02-27 1989-04-18 Intermedics Inc. Biphasic waveforms for defibrillation
US5191884A (en) 1987-09-02 1993-03-09 Telectronics N.V. Reconfirmation prior to shock for implantable defibrillation
US4865036A (en) 1988-06-10 1989-09-12 Raul Chirife Antitachyarrythmia pacemaker using pre-ejection period to distinguish physiologic from pathologic tachycardia
US4949719A (en) 1989-04-26 1990-08-21 Ventritex, Inc. Method for cardiac defibrillation
US4967747A (en) 1989-05-19 1990-11-06 Ventritex, Inc. Implantable cardiac defibrillator employing a switched capacitor gain/filter stage having a transient-free gain change
US5007422A (en) 1989-06-06 1991-04-16 Ventritex, Inc. Method for combiner cardiac pacing and defibrillation
US5205583A (en) 1990-04-04 1993-04-27 Mercedes-Benz Ag Inflatable airbag
US5107850A (en) 1990-11-02 1992-04-28 Cardiac Pacemakers, Inc. Method and apparatus for classifying and treating cardiac arrhythmias based on atrial and ventricular activity
US5193536A (en) 1990-12-20 1993-03-16 Medtronic, Inc. Paced cardioversion
US5161527A (en) 1991-02-13 1992-11-10 Telectronics Pacing Systems, Inc. Apparatus and method for detecting abnormal cardiac rhythms in dual chamber arrhythmia control system
US5176137A (en) 1991-03-01 1993-01-05 Medtronic, Inc. Apparatus for discrimination of stable and unstable ventricular tachycardia and for treatment thereof
US5209229A (en) 1991-05-20 1993-05-11 Telectronics Pacing Systems, Inc. Apparatus and method employing plural electrode configurations for cardioversion of atrial fibrillation in an arrhythmia control system
US5193535A (en) 1991-08-27 1993-03-16 Medtronic, Inc. Method and apparatus for discrimination of ventricular tachycardia from ventricular fibrillation and for treatment thereof
US5215083A (en) * 1991-10-07 1993-06-01 Telectronics Pacing Systems, Inc. Apparatus and method for arrhythmia induction in arrhythmia control system
US5330505A (en) 1992-05-08 1994-07-19 Leonard Bloom System for and method of treating a malfunctioning heart
US5251624A (en) 1992-06-22 1993-10-12 Incontrol, Inc. Pulse generator for use in an implantable atrial defibrillator
US5318591A (en) * 1992-11-23 1994-06-07 Siemens Pacesetter, Inc. Implantable cardioverter-defibrillator having early charging capability
US5458619A (en) 1993-11-29 1995-10-17 Medtronic, Inc. Apparatus and method for treating a tachyarrhythmia
US5713924A (en) 1995-06-27 1998-02-03 Medtronic, Inc. Defibrillation threshold reduction system
US5662688A (en) 1995-08-14 1997-09-02 Cardiac Pacemakers, Inc. Slow gain control
US5554174A (en) * 1995-10-18 1996-09-10 Pacesetter, Inc. System and method for automatically adjusting cardioverter and defibrillator shock energy as a function of time-to-therapy
JP3091404B2 (en) 1995-11-09 2000-09-25 富士通株式会社 Manufacturing method of magnetic head
EP0902707B1 (en) 1996-05-14 2000-08-16 Medtronic, Inc. Prioritized rule based apparatus for diagnosis and treatment of arrhythmias
US6167308A (en) 1999-04-09 2000-12-26 Medtronic, Inc. Closed loop ATP
US6400986B1 (en) * 2000-04-10 2002-06-04 Cardiac Pacemakers, Inc. Adaptive anti-tachycardia therapy apparatus and method
US6718204B2 (en) * 2001-07-30 2004-04-06 Medtronic, Inc. Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device

Also Published As

Publication number Publication date
US20030023273A1 (en) 2003-01-30
US20040181259A1 (en) 2004-09-16
CA2454235A1 (en) 2003-02-13
WO2003011391A3 (en) 2003-10-16
EP1418982A2 (en) 2004-05-19
US6718204B2 (en) 2004-04-06
JP4262596B2 (en) 2009-05-13
JP2004536678A (en) 2004-12-09
US20070156189A1 (en) 2007-07-05
EP1418982B1 (en) 2012-12-19
US8170663B2 (en) 2012-05-01
WO2003011391A2 (en) 2003-02-13

Similar Documents

Publication Publication Date Title
WO2003011391B1 (en) Method and apparatus to control delivery of high-voltage and anti-tachy pacing therapy in an implantable medical device
US5215081A (en) Method and device for measuring subthreshold defibrillation electrode resistance and providing a constant energy shock delivery
US6892094B2 (en) Combined anti-tachycardia pacing (ATP) and high voltage therapy for treating ventricular arrhythmias
US6411844B1 (en) Fast recovery sensor amplifier circuit for implantable medical device
US8478399B2 (en) Method and apparatus for controlling arrhythmia detection and treatment based on patient posture
US7734345B2 (en) Method and system for aborting cardiac treatments
JP2004536678A5 (en)
US6445949B1 (en) Implantable cardioversion device with a self-adjusting threshold for therapy selection
EP0674916A2 (en) Apparatus for treating cardiac tachyarrhythmia
US7317942B2 (en) Dynamic discrimination utilizing anti-tachy pacing therapy in an implantable medical device
EP3383491B1 (en) Extra-cardiovascular cardiac pacing system for delivering composite pacing pulses
US6490484B2 (en) Apparatus and method for estimating battery condition in implantable cardioverter/defibrillators
US20040073266A1 (en) Automatic detection of defibrillation lead
CA2129063A1 (en) Method and apparatus for phase related cardiac defibrillation
US20140121716A1 (en) High voltage therapy diversion algorithms
CA2142163A1 (en) Method and apparatus for delivering defibrillation shocks with improved effectiveness
US7546159B1 (en) Subcutaneous cardiac stimulation device, system, and method providing accelerated arrhythmia detection verification and transient rate compensation
WO2014149811A1 (en) Identification of insulation breach using electrograms
US5649971A (en) Apparatus and method for inducing fibrillation
US20040220630A1 (en) Automatic adjusting R-wave synchronization algorithm for atrial cardioversion and defibrillation
EP3160575B1 (en) Implantable medical system and method for identifying insulation breach using electrograms
US8588905B2 (en) Method and system for adjusting a stimulation rate of an implantable medical device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): CA

Kind code of ref document: A2

Designated state(s): CA JP

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FR GB GR IE IT LU MC NL PT SE SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
B Later publication of amended claims

Free format text: 20031024

WWE Wipo information: entry into national phase

Ref document number: 2454235

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2003516621

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2002763358

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2002763358

Country of ref document: EP