DE68916998D1 - System zur Bestimmung der Leitungsimpedanz für Herzschrittmacher. - Google Patents

System zur Bestimmung der Leitungsimpedanz für Herzschrittmacher.

Info

Publication number
DE68916998D1
DE68916998D1 DE68916998T DE68916998T DE68916998D1 DE 68916998 D1 DE68916998 D1 DE 68916998D1 DE 68916998 T DE68916998 T DE 68916998T DE 68916998 T DE68916998 T DE 68916998T DE 68916998 D1 DE68916998 D1 DE 68916998D1
Authority
DE
Germany
Prior art keywords
pacemakers
determining
line impedance
impedance
line
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 - Fee Related
Application number
DE68916998T
Other languages
English (en)
Other versions
DE68916998T2 (de
Inventor
Christer Dipl Ing Ekwall
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 AB
Original Assignee
Siemens AG
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=22671826&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68916998(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of DE68916998D1 publication Critical patent/DE68916998D1/de
Publication of DE68916998T2 publication Critical patent/DE68916998T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • 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
    • A61N1/3706—Pacemaker parameters

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrotherapy Devices (AREA)
DE68916998T 1988-04-19 1989-04-10 System zur Bestimmung der Leitungsimpedanz für Herzschrittmacher. Expired - Fee Related DE68916998T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/183,191 US4899750A (en) 1988-04-19 1988-04-19 Lead impedance scanning system for pacemakers

Publications (2)

Publication Number Publication Date
DE68916998D1 true DE68916998D1 (de) 1994-09-01
DE68916998T2 DE68916998T2 (de) 1995-03-23

Family

ID=22671826

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68916998T Expired - Fee Related DE68916998T2 (de) 1988-04-19 1989-04-10 System zur Bestimmung der Leitungsimpedanz für Herzschrittmacher.

Country Status (5)

Country Link
US (1) US4899750A (de)
EP (1) EP0338364B1 (de)
JP (1) JPH01313065A (de)
AU (1) AU604456B2 (de)
DE (1) DE68916998T2 (de)

Families Citing this family (138)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137021A (en) * 1990-11-29 1992-08-11 Medtronic, Inc. Lead current measurement circuit
US5174286A (en) * 1990-12-07 1992-12-29 Raul Chirife Sensor for right ventricular and thoracic volumes using the trailing edge value of a generated pulse
US5197479A (en) * 1991-05-13 1993-03-30 Mortara Instrument Automatic electrode channel impedance measurement system for egg monitor
AU665543B2 (en) * 1991-06-28 1996-01-11 Liquip Sales Pty Limited A system/apparatus for indicating electrical continuity of fluid carrying components
US5201865A (en) * 1991-10-28 1993-04-13 Medtronic, Inc. Medical lead impedance measurement system
US5224475A (en) * 1991-11-20 1993-07-06 Medtronic, Inc. Method and apparatus for termination of ventricular tachycardia and ventricular fibrillation
US5297549A (en) * 1992-09-23 1994-03-29 Endocardial Therapeutics, Inc. Endocardial mapping system
ATE160273T1 (de) 1992-09-23 1997-12-15 Endocardial Solutions Inc Endokard-mapping system
USRE41334E1 (en) 1992-09-23 2010-05-11 St. Jude Medical, Atrial Fibrillation Division, Inc. Endocardial mapping system
US7930012B2 (en) * 1992-09-23 2011-04-19 St. Jude Medical, Atrial Fibrillation Division, Inc. Chamber location method
US7189208B1 (en) * 1992-09-23 2007-03-13 Endocardial Solutions, Inc. Method for measuring heart electrophysiology
SE9300283D0 (sv) * 1993-01-29 1993-01-29 Siemens Elema Ab Foerfarande och anordning foer elektrodoevervakning vid elektriska hjaertstimulatorer
US5350401A (en) * 1993-03-26 1994-09-27 Siemens Pacesetter, Inc. Implantable cardioverter/defibrillator device having means for determining and treating low amplitude ventricular fibrillation and method thereof
US5391199A (en) * 1993-07-20 1995-02-21 Biosense, Inc. Apparatus and method for treating cardiac arrhythmias
US5738096A (en) * 1993-07-20 1998-04-14 Biosense, Inc. Cardiac electromechanics
US5431692A (en) * 1993-08-02 1995-07-11 Telectronics Pacing Systems, Inc. Method and apparatus for testing compatibility of lead polarity and polarity programming of a cardiac stimulator
US5454377A (en) * 1993-10-08 1995-10-03 The Ohio State University Method for measuring the myocardial electrical impedance spectrum
US5713367A (en) * 1994-01-26 1998-02-03 Cambridge Heart, Inc. Measuring and assessing cardiac electrical stability
US5507786A (en) * 1994-04-14 1996-04-16 Pacesetter, Inc. System and method for measuring and storing parametric data pertaining to operating characteristics of an implantable medical device
US5534018A (en) * 1994-11-30 1996-07-09 Medtronic, Inc. Automatic lead recognition for implantable medical device
US5713933A (en) * 1994-11-30 1998-02-03 Medtronic, Inc. Method and apparatus for automatic pacing threshold determination
US5549646A (en) * 1994-12-06 1996-08-27 Pacesetter, Inc. Periodic electrical lead intergrity testing system and method for implantable cardiac stimulating devices
US5795298A (en) * 1995-03-28 1998-08-18 Sonometrics Corporation System for sharing electrocardiogram electrodes and transducers
US5817022A (en) * 1995-03-28 1998-10-06 Sonometrics Corporation System for displaying a 2-D ultrasound image within a 3-D viewing environment
US5830144A (en) * 1995-03-28 1998-11-03 Vesely; Ivan Tracking data sheath
US5868673A (en) * 1995-03-28 1999-02-09 Sonometrics Corporation System for carrying out surgery, biopsy and ablation of a tumor or other physical anomaly
US5797849A (en) * 1995-03-28 1998-08-25 Sonometrics Corporation Method for carrying out a medical procedure using a three-dimensional tracking and imaging system
US6246898B1 (en) 1995-03-28 2001-06-12 Sonometrics Corporation Method for carrying out a medical procedure using a three-dimensional tracking and imaging system
US5620474A (en) * 1995-04-24 1997-04-15 Vitatron Medical, B.V. System and method for determining indicated pacemaker replacement time based upon battery impedance measurement
US5954665A (en) * 1995-06-07 1999-09-21 Biosense, Inc. Cardiac ablation catheter using correlation measure
US5718241A (en) * 1995-06-07 1998-02-17 Biosense, Inc. Apparatus and method for treating cardiac arrhythmias with no discrete target
CA2204615C (en) * 1995-09-29 2003-10-07 Michael F. Hess Adaptive search av and auto pvarp adaptation to same with additional benefit
US5776168A (en) * 1996-04-03 1998-07-07 Medtronic, Inc. EGM recording system for implantable medical device
SE9602440D0 (sv) * 1996-06-20 1996-06-20 Pacesetter Ab Medical apparatus
US5837900A (en) * 1996-06-21 1998-11-17 Medtronic Inc System and method for detecting metal ion oxidation in pacing lead
US5741311A (en) * 1996-06-27 1998-04-21 Medtronic, Inc. Implantable medical device system with method for determining lead condition
US5722997A (en) * 1996-09-17 1998-03-03 Sulzer Intermedics Inc. Method and apparatus for cardiac impedance sensing
US5755742A (en) * 1996-11-05 1998-05-26 Medtronic, Inc. Cardioversion/defibrillation lead impedance measurement system
US6019725A (en) * 1997-03-07 2000-02-01 Sonometrics Corporation Three-dimensional tracking and imaging system
US5814088A (en) * 1997-03-26 1998-09-29 Sulzer Intermedics Inc. Cardiac stimulator with lead failure detector and warning system
US6490474B1 (en) * 1997-08-01 2002-12-03 Cardiac Pathways Corporation System and method for electrode localization using ultrasound
US5897577A (en) * 1997-11-07 1999-04-27 Medtronic, Inc. Pacing lead impedance monitoring circuit and method
US5910156A (en) 1997-11-07 1999-06-08 Medtronic Inc. Non-physiologic sense detection for implantable medical devices
US5891179A (en) * 1997-11-20 1999-04-06 Paceseter, Inc. Method and apparatus for monitoring and displaying lead impedance in real-time for an implantable medical device
US6022322A (en) * 1998-02-06 2000-02-08 Intermedics Inc. Non-invasive cardiorespiratory monitor with synchronized bioimpedance sensing
US6141585A (en) * 1998-05-08 2000-10-31 Intermedics Inc. Implantable cardiac stimulator with electrode-tissue interface characterization
AU736686B2 (en) * 1998-06-03 2001-08-02 Neurocontrol Corporation Percutaneous intramuscular stimulation system
US7670297B1 (en) 1998-06-30 2010-03-02 St. Jude Medical, Atrial Fibrillation Division, Inc. Chamber mapping system
US7263397B2 (en) 1998-06-30 2007-08-28 St. Jude Medical, Atrial Fibrillation Division, Inc. Method and apparatus for catheter navigation and location and mapping in the heart
US7806829B2 (en) * 1998-06-30 2010-10-05 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for navigating an ultrasound catheter to image a beating heart
US6950689B1 (en) * 1998-08-03 2005-09-27 Boston Scientific Scimed, Inc. Dynamically alterable three-dimensional graphical model of a body region
US5944746A (en) * 1998-10-30 1999-08-31 Pacesetter, Inc. ICD with continuous regular testing of defibrillation lead status
US6317633B1 (en) 1999-01-19 2001-11-13 Medtronic, Inc. Implantable lead functional status monitor and method
US6721600B2 (en) 2000-01-19 2004-04-13 Medtronic, Inc. Implantable lead functional status monitor and method
US6370432B1 (en) * 1999-08-20 2002-04-09 Cardiac Pacemakers, Inc. Pacemaker passive measurement testing system and method
US6445952B1 (en) 2000-05-18 2002-09-03 Medtronic, Inc. Apparatus and method for detecting micro-dislodgment of a pacing lead
US6687538B1 (en) * 2000-06-19 2004-02-03 Medtronic, Inc. Trial neuro stimulator with lead diagnostics
WO2002018009A1 (en) 2000-08-26 2002-03-07 Medtronic, Inc. Implantable lead functional status monitor and method
US6658294B1 (en) 2001-08-29 2003-12-02 Pacesetter, Inc. Implantable cardiac device having an impedance monitoring circuit and method
FR2831743B1 (fr) * 2001-10-25 2004-01-30 Cit Alcatel Systeme de routage is-is tolerant aux fautes et procede correspondant
US6695790B2 (en) 2001-10-26 2004-02-24 Medtronic, Inc. Method and system for determining kidney failure
US20030199938A1 (en) * 2002-04-22 2003-10-23 Karel Smits Precise cardiac lead placement based on impedance measurements
US7047083B2 (en) * 2002-09-30 2006-05-16 Medtronic, Inc. Method and apparatus for identifying lead-related conditions using lead impedance measurements
US20040088033A1 (en) * 2002-10-31 2004-05-06 Smits Karel F.A.A. Implantable medical lead designs
US8010207B2 (en) 2002-10-31 2011-08-30 Medtronic, Inc. Implantable medical lead designs
US7031773B1 (en) 2003-01-10 2006-04-18 Pacesetter, Inc. Implantable cardiac stimulation system providing autocapture and lead impedance assessment and method
US20050261571A1 (en) * 2004-05-21 2005-11-24 Willis Nathaniel P 3-D ultrasound navigation during radio-frequency ablation
US7751891B2 (en) * 2004-07-28 2010-07-06 Cyberonics, Inc. Power supply monitoring for an implantable device
US7574259B1 (en) 2004-11-12 2009-08-11 Pacesetter, Inc. Capture threshold and lead condition analysis
US7308310B1 (en) 2005-01-26 2007-12-11 Pacesetter, Inc. Implantable cardiac stimulation device providing bipolar autocapture and lead impedance assessment and method
WO2006119103A2 (en) * 2005-04-29 2006-11-09 Medtronic, Inc. Event-based lead impedance monitoring
DE602006010995D1 (de) * 2005-04-29 2010-01-21 Medtronic Inc Funktionstest für verteilte leitungskabel
US7515961B2 (en) * 2005-04-29 2009-04-07 Medtronic, Inc. Method and apparatus for dynamically monitoring, detecting and diagnosing lead conditions
US7644714B2 (en) * 2005-05-27 2010-01-12 Apnex Medical, Inc. Devices and methods for treating sleep disorders
US7567840B2 (en) 2005-10-28 2009-07-28 Cyberonics, Inc. Lead condition assessment for an implantable medical device
AU2006320425B2 (en) * 2005-12-01 2011-11-10 Doheny Eye Institute Fitting a neural prosthesis using impedance and electrode height
US7769455B2 (en) * 2006-01-27 2010-08-03 Cyberonics, Inc. Power supply monitoring for an implantable device
US8180462B2 (en) * 2006-04-18 2012-05-15 Cyberonics, Inc. Heat dissipation for a lead assembly
US7899535B2 (en) * 2006-06-16 2011-03-01 Cardiac Pacemakers, Inc. Automatic electrode integrity management systems and methods
US8478420B2 (en) * 2006-07-12 2013-07-02 Cyberonics, Inc. Implantable medical device charge balance assessment
US20080027524A1 (en) * 2006-07-26 2008-01-31 Maschino Steven E Multi-electrode assembly for an implantable medical device
US8855771B2 (en) 2011-01-28 2014-10-07 Cyberonics, Inc. Screening devices and methods for obstructive sleep apnea therapy
US9186511B2 (en) 2006-10-13 2015-11-17 Cyberonics, Inc. Obstructive sleep apnea treatment devices, systems and methods
EP3527255B1 (de) 2006-10-13 2020-08-05 Cyberonics, Inc. Vorrichtungen und systeme zur behandlung von obstruktiver schlafapnoe
US9744354B2 (en) 2008-12-31 2017-08-29 Cyberonics, Inc. Obstructive sleep apnea treatment devices, systems and methods
US9913982B2 (en) 2011-01-28 2018-03-13 Cyberonics, Inc. Obstructive sleep apnea treatment devices, systems and methods
US9205262B2 (en) 2011-05-12 2015-12-08 Cyberonics, Inc. Devices and methods for sleep apnea treatment
US7930028B2 (en) * 2006-10-20 2011-04-19 Biotronik Crm Patent Ag Implantable cardiac device with a shock lead
US7974707B2 (en) * 2007-01-26 2011-07-05 Cyberonics, Inc. Electrode assembly with fibers for a medical device
US8868203B2 (en) * 2007-10-26 2014-10-21 Cyberonics, Inc. Dynamic lead condition detection for an implantable medical device
US8942798B2 (en) * 2007-10-26 2015-01-27 Cyberonics, Inc. Alternative operation mode for an implantable medical device based upon lead condition
US8126553B2 (en) * 2008-06-02 2012-02-28 Medtronic, Inc. Sensing integrity determination based on cardiovascular pressure
WO2009148425A1 (en) * 2008-06-02 2009-12-10 Medtronic, Inc. Impedance variability analysis to identify lead-related conditions
EP2303403B1 (de) * 2008-06-02 2016-09-14 Medtronic, Inc. Elektrogramm-speicherung bei verdacht auf nicht-physiologische episoden
US20090299421A1 (en) * 2008-06-02 2009-12-03 Medtronic, Inc. Evaluation of implantable medical device sensing integrity based on evoked signals
WO2009148428A1 (en) * 2008-06-02 2009-12-10 Medtronic, Inc. Electrode lead integrity reports
US7974690B2 (en) * 2008-06-30 2011-07-05 Medtronic, Inc. Lead integrity testing during suspected tachyarrhythmias
US9522277B2 (en) 2008-07-28 2016-12-20 Medtronic, Inc. Lead integrity testing triggered by sensed signal saturation
US7953488B2 (en) * 2008-07-31 2011-05-31 Medtronic, Inc. Pre-qualification of an alternate sensing configuration
US8078277B2 (en) * 2008-10-29 2011-12-13 Medtronic, Inc. Identification and remediation of oversensed cardiac events using far-field electrograms
US10118042B2 (en) 2008-10-31 2018-11-06 Medtronic, Inc. Lead integrity testing triggered by sensed asystole
US8311639B2 (en) * 2009-07-08 2012-11-13 Nevro Corporation Systems and methods for adjusting electrical therapy based on impedance changes
US8355797B2 (en) 2009-02-10 2013-01-15 Nevro Corporation Systems and methods for delivering neural therapy correlated with patient status
US8406892B2 (en) * 2009-06-15 2013-03-26 Kallis Technical Services Method and apparatus for detecting imminent structural failure of an electrical lead in an implanted cardiac therapy medical device
US8498710B2 (en) 2009-07-28 2013-07-30 Nevro Corporation Linked area parameter adjustment for spinal cord stimulation and associated systems and methods
US20110098765A1 (en) * 2009-10-27 2011-04-28 Medtronic, Inc. Detecting lead related condition during delivery of therapeutic electrical signals
US8396543B2 (en) * 2010-01-28 2013-03-12 Medtronic, Inc. Storage of data for evaluation of lead integrity
US8478428B2 (en) 2010-04-23 2013-07-02 Cyberonics, Inc. Helical electrode for nerve stimulation
US8874229B2 (en) 2010-04-28 2014-10-28 Cyberonics, Inc. Delivering scheduled and unscheduled therapy without detriment to battery life or accuracy of longevity predictions
US8543206B2 (en) 2010-06-25 2013-09-24 Pacesetter, Inc. Early detection of lead failure using an impedance histogram
US8463384B2 (en) 2011-01-27 2013-06-11 Medtronic, Inc. Isolated lead conductor measurements for fault detection
US9539428B2 (en) 2011-01-27 2017-01-10 Medtronic, Inc. Isolating lead conductor for fault detection
US8577459B2 (en) 2011-01-28 2013-11-05 Cyberonics, Inc. System and method for estimating battery capacity
US8761884B2 (en) 2011-04-14 2014-06-24 Cyberonics, Inc. Device longevity prediction for a device having variable energy consumption
US8761885B2 (en) 2011-04-29 2014-06-24 Cyberonics, Inc. Battery life estimation based on voltage depletion rate
US8855765B2 (en) 2011-06-09 2014-10-07 Medtronic, Inc. Fault tolerant methods and architectures for embedded intelligence in medical leads
US8798751B2 (en) 2011-06-09 2014-08-05 Medtronic, Inc. Method and apparatus to manage lead-related conditions for fault tolerance enhancements
US8577457B2 (en) 2011-07-07 2013-11-05 Medtronics, Inc. Isolating lead body for fault detection
US8774909B2 (en) 2011-09-26 2014-07-08 Medtronic, Inc. Episode classifier algorithm
US8437840B2 (en) 2011-09-26 2013-05-07 Medtronic, Inc. Episode classifier algorithm
US8744560B2 (en) 2011-09-30 2014-06-03 Medtronic, Inc. Electrogram summary
US9668668B2 (en) 2011-09-30 2017-06-06 Medtronic, Inc. Electrogram summary
US8521281B2 (en) 2011-10-14 2013-08-27 Medtronic, Inc. Electrogram classification algorithm
US8886296B2 (en) 2011-10-14 2014-11-11 Medtronic, Inc. T-wave oversensing
US9232898B2 (en) 2011-10-27 2016-01-12 Medtronic, Inc. Method and apparatus to manage lead-related conditions for fault tolerance enhancements
US9956417B2 (en) 2012-05-08 2018-05-01 Medtronic, Inc. Identifying lead insulation breaches and externalization of lead conductors
US9295840B1 (en) 2013-01-22 2016-03-29 Nevro Corporation Systems and methods for automatically programming patient therapy devices
US9895538B1 (en) 2013-01-22 2018-02-20 Nevro Corp. Systems and methods for deploying patient therapy devices
US9731133B1 (en) 2013-01-22 2017-08-15 Nevro Corp. Systems and methods for systematically testing a plurality of therapy programs in patient therapy devices
WO2015053769A1 (en) 2013-10-09 2015-04-16 Advanced Bionics Ag Systems for measuring electrode impedance during a normal operation of a cochlear implant system
US9764139B2 (en) 2014-01-24 2017-09-19 Medtronic, Inc. Pre-implant detection
EP3104768B1 (de) 2014-02-11 2023-07-26 Cyberonics, Inc. Systeme zur erkennung und behandlung obstruktiver schlafapnoe
WO2015123483A1 (en) 2014-02-13 2015-08-20 Medtronic, Inc. Lead monitoring frequency based on lead and patient characteristics
US9517344B1 (en) 2015-03-13 2016-12-13 Nevro Corporation Systems and methods for selecting low-power, effective signal delivery parameters for an implanted pulse generator
US10300277B1 (en) 2015-12-14 2019-05-28 Nevro Corp. Variable amplitude signals for neurological therapy, and associated systems and methods
US11235165B2 (en) * 2019-02-04 2022-02-01 Pacesetter, Inc. Lead impedance monitoring for an implantable medical device
CN110193142A (zh) * 2019-05-24 2019-09-03 深圳市先健心康医疗电子有限公司 起搏导线脱落检测方法及临时心脏起搏器
US20220370812A1 (en) * 2020-01-05 2022-11-24 Impulse Dynamics Nv Lead condition testing in an implanted cardiac device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088139A (en) * 1976-03-08 1978-05-09 Medalert Corporation Automatic detection and registration of failure condition in a cardiac pacer monitoring system
US4140131A (en) * 1976-11-03 1979-02-20 Medtronic, Inc. Body tissue stimulation apparatus with warning device
IT1118131B (it) * 1978-07-20 1986-02-24 Medtronic Inc Perfezionamento nei pacemaker cardiaci multi-modo adattabili impiantabili
US4459995A (en) * 1979-03-08 1984-07-17 Lafayette R. Hubbard Indicating device for use in a device for measuring and indicating changes in resistance of a living body
US4380237A (en) * 1979-12-03 1983-04-19 Massachusetts General Hospital Apparatus for making cardiac output conductivity measurements
US4527567A (en) * 1980-04-01 1985-07-09 Yeda Research & Development Company, Ltd. Method and apparatus for automatically evaluating the quality of the performance of a cardiac pacing system
US4476869A (en) * 1980-06-05 1984-10-16 Intermedics, Inc. Pacer analyzer
US4630615A (en) * 1984-05-21 1986-12-23 Cordis Corporation Apparatus for measuring impedance
US4606350A (en) * 1984-11-28 1986-08-19 Telectronics N.V. Pacemaker battery impedance test circuit and method of operation
FR2585557B1 (fr) * 1985-08-02 1987-11-06 Centre Nat Rech Scient Dispositif de mesure de caracteristiques electriques de tissus vivants, et en particulier de la temperature pour hyperthermie capacitive ou radiative
US4674518A (en) * 1985-09-06 1987-06-23 Cardiac Pacemakers, Inc. Method and apparatus for measuring ventricular volume
US4697591A (en) * 1986-06-16 1987-10-06 Siemens Aktiengesellschaft Cardiac pacer for pacing a human heart and pacing method
AU625593B2 (en) * 1987-06-30 1992-07-16 Ventracor Limited Combined pacemaker parameter and vital sign monitor

Also Published As

Publication number Publication date
DE68916998T2 (de) 1995-03-23
AU604456B2 (en) 1990-12-13
US4899750A (en) 1990-02-13
AU3314289A (en) 1989-10-26
EP0338364A3 (en) 1990-08-29
JPH01313065A (ja) 1989-12-18
EP0338364A2 (de) 1989-10-25
EP0338364B1 (de) 1994-07-27

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8363 Opposition against the patent
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Owner name: PACESETTER AB, SOLNA, SE

8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 81245 MUENCHEN

8327 Change in the person/name/address of the patent owner

Owner name: PACESETTER AB, JAERFAELLA, SE

8365 Fully valid after opposition proceedings
8328 Change in the person/name/address of the agent

Representative=s name: KRAMER - BARSKE - SCHMIDTCHEN, 81245 MUENCHEN

8339 Ceased/non-payment of the annual fee