CA2013815A1 - Device for combined cardiac pacing and defibrillation - Google Patents

Device for combined cardiac pacing and defibrillation

Info

Publication number
CA2013815A1
CA2013815A1 CA2013815A CA2013815A CA2013815A1 CA 2013815 A1 CA2013815 A1 CA 2013815A1 CA 2013815 A CA2013815 A CA 2013815A CA 2013815 A CA2013815 A CA 2013815A CA 2013815 A1 CA2013815 A1 CA 2013815A1
Authority
CA
Canada
Prior art keywords
sensed
arrhythmia
rate
wave
timer
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
CA2013815A
Other languages
French (fr)
Other versions
CA2013815C (en
Inventor
Benjamin Pless
Michael Sweeney
Roger Winkle
Anthony Wayne Nathan
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
Ventritex, Inc.
Pacesetter, Inc.
Benjamin Pless
Michael Sweeney
Roger Winkle
Anthony Wayne Nathan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23424931&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2013815(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ventritex, Inc., Pacesetter, Inc., Benjamin Pless, Michael Sweeney, Roger Winkle, Anthony Wayne Nathan filed Critical Ventritex, Inc.
Publication of CA2013815A1 publication Critical patent/CA2013815A1/en
Application granted granted Critical
Publication of CA2013815C publication Critical patent/CA2013815C/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
    • A61N1/36—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
    • A61N1/3956—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

Abstract

A method is disclosed for combined cardiac pacing and defibrillating with an implanted pacer/defibrillator having sensing and pacing leads connected to the atrium and the ventricle. P-waves and R-waves are sensed, and a V-V timer and a V-A timer are reset if an R-wave is sensed. If an R-wave is sensed during the V-V timer interval, a pacing stimulus to the ventricle is inhibited. If a P-wave is sensed during the V-A timer interval, a pacing stimulus to the atrium is inhibited. If an R-wave is sensed during the V-V timer interval, arrhythmia therapy is provided if an arrhythmia is determined to be present. If the sensed ventricular rate is greater than a selected tachycardia rate but is less than a selected fibrillation rate, then a determination is made whether the sensed atrial rate is greater than a selected fibrillation rate, and if so, the V-V and V-A timers are reset, but if the sensed atrial rate is not greater than a selected fibrillation rate, then arrhythmia therapy is provided. If an arrhythmia is present, the charging of a capacitor commences but if the arrhythmia ceases, the charging discontinues. If the capacitor is charged and the arrhythmia is still present, then a shock is delivered to the heart during a time period that is outside the vulnerable zones of the atrium and the ventricle.
CA002013815A 1989-06-06 1990-04-04 Device for combined cardiac pacing and defibrillation Expired - Fee Related CA2013815C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/362,163 US5007422A (en) 1989-06-06 1989-06-06 Method for combiner cardiac pacing and defibrillation
US362,163 1989-06-06

Publications (2)

Publication Number Publication Date
CA2013815A1 true CA2013815A1 (en) 1990-12-06
CA2013815C CA2013815C (en) 1995-01-24

Family

ID=23424931

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002013815A Expired - Fee Related CA2013815C (en) 1989-06-06 1990-04-04 Device for combined cardiac pacing and defibrillation

Country Status (5)

Country Link
US (2) US5007422A (en)
EP (1) EP0401962B1 (en)
AT (1) ATE134890T1 (en)
CA (1) CA2013815C (en)
DE (1) DE69025649T2 (en)

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* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
CA2013815C (en) 1995-01-24
DE69025649T2 (en) 1996-08-29
US5007422A (en) 1991-04-16
ATE134890T1 (en) 1996-03-15
DE69025649D1 (en) 1996-04-11
US5048521A (en) 1991-09-17
EP0401962A2 (en) 1990-12-12
EP0401962A3 (en) 1991-10-09
EP0401962B1 (en) 1996-03-06

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