US3911928B1 - - Google Patents

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Publication number
US3911928B1
US3911928B1 US46021174A US3911928B1 US 3911928 B1 US3911928 B1 US 3911928B1 US 46021174 A US46021174 A US 46021174A US 3911928 B1 US3911928 B1 US 3911928B1
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372Arrangements in connection with the implantation of stimulators
    • A61N1/375Constructional arrangements, e.g. casings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B18/1487Trocar-like, i.e. devices producing an enlarged transcutaneous opening
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/05Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056Transvascular endocardial electrode systems
    • A61N1/0565Electrode heads
US3911928B1 1973-04-14 1974-04-11 Expired - Lifetime US3911928B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732319054 DE2319054C3 (en) 1973-04-14 1973-04-14

Publications (2)

Publication Number Publication Date
US3911928A US3911928A (en) 1975-10-14
US3911928B1 true US3911928B1 (en) 1988-11-08

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ID=5878188

Family Applications (1)

Application Number Title Priority Date Filing Date
US3911928B1 Expired - Lifetime US3911928B1 (en) 1973-04-14 1974-04-11

Country Status (6)

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US (1) US3911928B1 (en)
JP (1) JPS5713301B2 (en)
DE (1) DE2319054C3 (en)
FR (1) FR2225179B1 (en)
GB (1) GB1453424A (en)
NL (1) NL172212C (en)

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994302A (en) * 1975-08-14 1976-11-30 Medtronic, Inc. Stimulation electrode of ion-exchange material
US4006748A (en) * 1976-01-29 1977-02-08 Pacestter Systems, Inc. Implantable unipolar pacemaker with improved outer electrode plate
US4026303A (en) * 1975-11-17 1977-05-31 Vitatron Medical B.V. Endocardial pacing electrode
US4156429A (en) * 1977-10-11 1979-05-29 Cardiac Pacemakers, Inc. Implantable electrode
DE3023191A1 (en) * 1980-06-18 1981-12-24 Biotronik Mess & Therapieg Implanted heart pacemaker electrode - has carrier wire wound with one or more fine wire layers providing conductive surface
DE3211510A1 (en) * 1981-03-30 1982-10-21 Medtronic Inc implantable lead
DE3213330A1 (en) * 1981-04-06 1982-11-11 Telectronics Pty Ltd Electrode tip for a pacemaker and process for making same
US4408604A (en) * 1981-04-06 1983-10-11 Teletronics Pty, Limited Porous pacemaker electrode tip
US4440178A (en) * 1980-12-23 1984-04-03 Kontron Ag Implantable electrode
US4444206A (en) * 1982-04-29 1984-04-24 Cordis Corporation Mesh tip pacing lead assembly
US4649937A (en) * 1985-01-28 1987-03-17 Cordis Corporation Etched grooved electrode for pacing lead and method for making same
US4690155A (en) * 1985-07-03 1987-09-01 Cordis Corporation Monophasic action potential recording lead
DE3739826A1 (en) * 1986-11-24 1988-07-14 Telectronics Nv An implantable stimulation lead for a pacemaker
US4760852A (en) * 1985-09-09 1988-08-02 Siemens Aktiengesellschaft Heart pacemaker electrode having two portions of different conductive properties for stimulating and sensing
US4832048A (en) * 1987-10-29 1989-05-23 Cordis Corporation Suction ablation catheter
US4844099A (en) * 1986-11-24 1989-07-04 Telectronics, N.V. Porous pacemaker electrode tip using a porous substrate
US4962767A (en) * 1988-07-05 1990-10-16 Cardiac Control Systems, Inc. Pacemaker catheter
US5127403A (en) * 1988-07-05 1992-07-07 Cardiac Control Systems, Inc. Pacemaker catheter utilizing bipolar electrodes spaced in accordance to the length of a heart depolarization signal
EP0571797A1 (en) * 1992-05-25 1993-12-01 Pacesetter AB Heart stimulation apparatus
US5318572A (en) * 1992-06-02 1994-06-07 Siemens Pacesetter, Inc. High efficiency tissue stimulating and signal sensing electrode
EP0620024A1 (en) * 1993-02-12 1994-10-19 Pacesetter AB Electrode device
US5370665A (en) * 1990-08-10 1994-12-06 Medtronic, Inc. Medical stimulator with multiple operational amplifier output stimulation circuits
US5522874A (en) * 1994-07-28 1996-06-04 Gates; James T. Medical lead having segmented electrode
US5522875A (en) * 1994-07-28 1996-06-04 Medtronic, Inc. Medical electrical lead system having a torque transfer stylet
US5571164A (en) * 1994-09-29 1996-11-05 Pacesetter Ab Cardiac electrode device having at least a portion thereof which is ribbon shaped
US5628778A (en) * 1994-11-21 1997-05-13 Medtronic Inc. Single pass medical electrical lead
US5645580A (en) * 1992-12-03 1997-07-08 Pacesetter, Inc. Implantable medical device lead assembly having high efficiency, flexible electrode head
US5692926A (en) * 1995-02-20 1997-12-02 Pacesetter Ab Electrode contact device, particularly an electrode contact head, and an electrode attachment device for an electrode cable of a cardiac pacemaker, and a method for producing such an electrode contact device
US6134478A (en) * 1998-06-05 2000-10-17 Intermedics Inc. Method for making cardiac leads with zone insulated electrodes
US6240320B1 (en) * 1998-06-05 2001-05-29 Intermedics Inc. Cardiac lead with zone insulated electrodes
WO2001074442A1 (en) * 2000-03-30 2001-10-11 Ding Sheng He Passively self-cooled electrode design for ablation catheters
US6463334B1 (en) 1998-11-02 2002-10-08 Cardiac Pacemakers, Inc. Extendable and retractable lead
US20020183817A1 (en) * 2000-12-07 2002-12-05 Paul Van Venrooij Directional brain stimulation and recording leads
US6501994B1 (en) * 1997-12-24 2002-12-31 Cardiac Pacemakers, Inc. High impedance electrode tip
US6501990B1 (en) 1999-12-23 2002-12-31 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US6505082B1 (en) 1998-07-22 2003-01-07 Cardiac Pacemakers, Inc. Single pass lead system
US6549812B1 (en) 1999-11-29 2003-04-15 Medtronic, Inc. Medical electrical lead having bending stiffness which increase in the distal direction
US6556873B1 (en) 1999-11-29 2003-04-29 Medtronic, Inc. Medical electrical lead having variable bending stiffness
US6569162B2 (en) 2001-03-29 2003-05-27 Ding Sheng He Passively self-cooled electrode design for ablation catheters
US20030229387A1 (en) * 2000-02-08 2003-12-11 Medtronic, Inc. Surgical lead body
US20040087935A1 (en) * 2002-11-01 2004-05-06 Scimed Life Systems, Inc. Electrophysiological probes having tissue insulation and /or heating device cooling apparatus
US20040092806A1 (en) * 2001-12-11 2004-05-13 Sagon Stephen W Microelectrode catheter for mapping and ablation
US20040097965A1 (en) * 2002-11-19 2004-05-20 Gardeski Kenneth C. Multilumen body for an implantable medical device
US20050004642A1 (en) * 1998-11-09 2005-01-06 Medtronic, Inc. Implantable medical lead including overlay
US20060168805A1 (en) * 2005-01-31 2006-08-03 Michael Hegland Method of manufacturing a medical lead
US7245973B2 (en) 2003-12-23 2007-07-17 Cardiac Pacemakers, Inc. His bundle mapping, pacing, and injection lead
US20090093811A1 (en) * 2007-10-09 2009-04-09 Josef Koblish Cooled ablation catheter devices and methods of use
US8285376B2 (en) 2004-12-20 2012-10-09 Cardiac Pacemakers, Inc. Ventricular pacing
US8290586B2 (en) 2004-12-20 2012-10-16 Cardiac Pacemakers, Inc. Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device
US8326423B2 (en) 2004-12-20 2012-12-04 Cardiac Pacemakers, Inc. Devices and methods for steering electrical stimulation in cardiac rhythm management
US8423139B2 (en) 2004-12-20 2013-04-16 Cardiac Pacemakers, Inc. Methods, devices and systems for cardiac rhythm management using an electrode arrangement
US8538521B2 (en) 2004-12-20 2013-09-17 Cardiac Pacemakers, Inc. Systems, devices and methods for monitoring efficiency of pacing
US8543203B2 (en) 2004-12-20 2013-09-24 Cardiac Pacemakers, Inc. Endocardial pacing devices and methods useful for resynchronization and defibrillation
US8565880B2 (en) 2010-04-27 2013-10-22 Cardiac Pacemakers, Inc. His-bundle capture verification and monitoring
US8688234B2 (en) 2008-12-19 2014-04-01 Cardiac Pacemakers, Inc. Devices, methods, and systems including cardiac pacing
US8880169B2 (en) 2004-12-20 2014-11-04 Cardiac Pacemakers, Inc. Endocardial pacing relating to conduction abnormalities

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1566472A (en) * 1976-09-28 1980-04-30 Reenstierna E G B Apparatus for the implantation of one or more pacemaker electrodes i a heart
DE3203759A1 (en) * 1982-02-04 1983-08-11 Heraeus Gmbh W C Stimulation electrode and process for their preparation
DE3300668A1 (en) * 1983-01-11 1984-07-12 Siemens Ag Electrode for medical applications
FR2595253A1 (en) * 1986-03-04 1987-09-11 Amiel Alain myocardial electrode member separate conductor
US5643328A (en) * 1996-07-19 1997-07-01 Sulzer Intermedics Inc. Implantable cardiac stimulation device with warning system having elongated stimulation electrode

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US164184A (en) * 1875-06-08 Improvement in vesicular electrodes
US932775A (en) * 1909-06-05 1909-08-31 Charles W Gaston Electric therapeutic instrument.
US1480353A (en) * 1921-01-19 1924-01-08 Wappler Electric Co Inc Electrode
US1889271A (en) * 1931-04-22 1932-11-29 Gustav A Zerne Electrical contact pad
US3533403A (en) * 1967-05-10 1970-10-13 Riley D Woodson Combination heart catheter and electrode
US3815611A (en) * 1971-11-26 1974-06-11 Medtronic Inc Muscle stimulation and/or contraction detection device
US3788329A (en) * 1972-04-17 1974-01-29 Medtronic Inc Body implantable lead

Cited By (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994302A (en) * 1975-08-14 1976-11-30 Medtronic, Inc. Stimulation electrode of ion-exchange material
US4026303A (en) * 1975-11-17 1977-05-31 Vitatron Medical B.V. Endocardial pacing electrode
US4006748A (en) * 1976-01-29 1977-02-08 Pacestter Systems, Inc. Implantable unipolar pacemaker with improved outer electrode plate
US4156429A (en) * 1977-10-11 1979-05-29 Cardiac Pacemakers, Inc. Implantable electrode
DE3023191A1 (en) * 1980-06-18 1981-12-24 Biotronik Mess & Therapieg Implanted heart pacemaker electrode - has carrier wire wound with one or more fine wire layers providing conductive surface
US4440178A (en) * 1980-12-23 1984-04-03 Kontron Ag Implantable electrode
DE3211510A1 (en) * 1981-03-30 1982-10-21 Medtronic Inc implantable lead
DE3213330A1 (en) * 1981-04-06 1982-11-11 Telectronics Pty Ltd Electrode tip for a pacemaker and process for making same
US4408604A (en) * 1981-04-06 1983-10-11 Teletronics Pty, Limited Porous pacemaker electrode tip
US4444206A (en) * 1982-04-29 1984-04-24 Cordis Corporation Mesh tip pacing lead assembly
US4649937A (en) * 1985-01-28 1987-03-17 Cordis Corporation Etched grooved electrode for pacing lead and method for making same
US4690155A (en) * 1985-07-03 1987-09-01 Cordis Corporation Monophasic action potential recording lead
US4760852A (en) * 1985-09-09 1988-08-02 Siemens Aktiengesellschaft Heart pacemaker electrode having two portions of different conductive properties for stimulating and sensing
DE3739826A1 (en) * 1986-11-24 1988-07-14 Telectronics Nv An implantable stimulation lead for a pacemaker
US4844099A (en) * 1986-11-24 1989-07-04 Telectronics, N.V. Porous pacemaker electrode tip using a porous substrate
US4784161A (en) * 1986-11-24 1988-11-15 Telectronics, N.V. Porous pacemaker electrode tip using a porous substrate
US4832048A (en) * 1987-10-29 1989-05-23 Cordis Corporation Suction ablation catheter
US4962767A (en) * 1988-07-05 1990-10-16 Cardiac Control Systems, Inc. Pacemaker catheter
US5127403A (en) * 1988-07-05 1992-07-07 Cardiac Control Systems, Inc. Pacemaker catheter utilizing bipolar electrodes spaced in accordance to the length of a heart depolarization signal
US5370665A (en) * 1990-08-10 1994-12-06 Medtronic, Inc. Medical stimulator with multiple operational amplifier output stimulation circuits
EP0571797A1 (en) * 1992-05-25 1993-12-01 Pacesetter AB Heart stimulation apparatus
US5306292A (en) * 1992-05-25 1994-04-26 Siemens-Elema Ab Heart stimulation apparatus
US5318572A (en) * 1992-06-02 1994-06-07 Siemens Pacesetter, Inc. High efficiency tissue stimulating and signal sensing electrode
US5645580A (en) * 1992-12-03 1997-07-08 Pacesetter, Inc. Implantable medical device lead assembly having high efficiency, flexible electrode head
US5405373A (en) * 1993-02-12 1995-04-11 Siemens-Elema Ab Electrode device for intracorporeal tissue stimulation
EP0620024A1 (en) * 1993-02-12 1994-10-19 Pacesetter AB Electrode device
US5522874A (en) * 1994-07-28 1996-06-04 Gates; James T. Medical lead having segmented electrode
US5522875A (en) * 1994-07-28 1996-06-04 Medtronic, Inc. Medical electrical lead system having a torque transfer stylet
US5571164A (en) * 1994-09-29 1996-11-05 Pacesetter Ab Cardiac electrode device having at least a portion thereof which is ribbon shaped
US5995876A (en) * 1994-11-21 1999-11-30 Medtronic, Inc. Single pass medical electrical lead
US6006139A (en) * 1994-11-21 1999-12-21 Medtronic, Inc. Single pass medical electrical lead with cap electrodes
US5628778A (en) * 1994-11-21 1997-05-13 Medtronic Inc. Single pass medical electrical lead
US5692926A (en) * 1995-02-20 1997-12-02 Pacesetter Ab Electrode contact device, particularly an electrode contact head, and an electrode attachment device for an electrode cable of a cardiac pacemaker, and a method for producing such an electrode contact device
US6501994B1 (en) * 1997-12-24 2002-12-31 Cardiac Pacemakers, Inc. High impedance electrode tip
US6134478A (en) * 1998-06-05 2000-10-17 Intermedics Inc. Method for making cardiac leads with zone insulated electrodes
US6240320B1 (en) * 1998-06-05 2001-05-29 Intermedics Inc. Cardiac lead with zone insulated electrodes
US6526321B1 (en) 1998-06-05 2003-02-25 Intermedics, Inc. Method for making cardiac leads with zone insulated electrodes
US6983185B2 (en) 1998-07-22 2006-01-03 Cardiac Pacemakers, Inc. Lead with terminal connector assembly
US6915169B2 (en) 1998-07-22 2005-07-05 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US7774934B2 (en) 1998-07-22 2010-08-17 Cardiac Pacemakers, Inc. Method for making a terminal connector
US6505082B1 (en) 1998-07-22 2003-01-07 Cardiac Pacemakers, Inc. Single pass lead system
US7392095B2 (en) 1998-07-22 2008-06-24 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US8209035B2 (en) 1998-07-22 2012-06-26 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US8285398B2 (en) 1998-07-22 2012-10-09 Cardiac Pacemakers, Inc. Lead with terminal connector assembly
US6463334B1 (en) 1998-11-02 2002-10-08 Cardiac Pacemakers, Inc. Extendable and retractable lead
US20050004642A1 (en) * 1998-11-09 2005-01-06 Medtronic, Inc. Implantable medical lead including overlay
US6556873B1 (en) 1999-11-29 2003-04-29 Medtronic, Inc. Medical electrical lead having variable bending stiffness
US6718211B2 (en) 1999-11-29 2004-04-06 Medtronic, Inc. Medical electrical lead having bending stiffnesses which increase in the distal direction
US6741893B2 (en) 1999-11-29 2004-05-25 Medtronic, Inc. Medical electrical lead having variable bending stiffness
US6549812B1 (en) 1999-11-29 2003-04-15 Medtronic, Inc. Medical electrical lead having bending stiffness which increase in the distal direction
US6501990B1 (en) 1999-12-23 2002-12-31 Cardiac Pacemakers, Inc. Extendable and retractable lead having a snap-fit terminal connector
US7319904B2 (en) 2000-02-08 2008-01-15 Medtronic, Inc. Percutaneous Surgical lead body
US20030229387A1 (en) * 2000-02-08 2003-12-11 Medtronic, Inc. Surgical lead body
WO2001074442A1 (en) * 2000-03-30 2001-10-11 Ding Sheng He Passively self-cooled electrode design for ablation catheters
US20020183817A1 (en) * 2000-12-07 2002-12-05 Paul Van Venrooij Directional brain stimulation and recording leads
US7212867B2 (en) 2000-12-07 2007-05-01 Medtronic, Inc. Directional brain stimulation and recording leads
US6569162B2 (en) 2001-03-29 2003-05-27 Ding Sheng He Passively self-cooled electrode design for ablation catheters
US20040092806A1 (en) * 2001-12-11 2004-05-13 Sagon Stephen W Microelectrode catheter for mapping and ablation
US20040087935A1 (en) * 2002-11-01 2004-05-06 Scimed Life Systems, Inc. Electrophysiological probes having tissue insulation and /or heating device cooling apparatus
US20040097965A1 (en) * 2002-11-19 2004-05-20 Gardeski Kenneth C. Multilumen body for an implantable medical device
US7130700B2 (en) * 2002-11-19 2006-10-31 Medtronic, Inc. Multilumen body for an implantable medical device
US7245973B2 (en) 2003-12-23 2007-07-17 Cardiac Pacemakers, Inc. His bundle mapping, pacing, and injection lead
US8078287B2 (en) 2003-12-23 2011-12-13 Cardiac Pacemakers, Inc. His bundle mapping, pacing, and injection lead
US9008768B2 (en) 2004-12-20 2015-04-14 Cardiac Pacemakers, Inc. Methods, devices and systems for cardiac rhythm management using an electrode arrangement
US8838238B2 (en) 2004-12-20 2014-09-16 Cardiac Pacemakers, Inc. Ventricular pacing
US8880169B2 (en) 2004-12-20 2014-11-04 Cardiac Pacemakers, Inc. Endocardial pacing relating to conduction abnormalities
US8825159B2 (en) 2004-12-20 2014-09-02 Cardiac Pacemakers, Inc. Devices and methods for steering electrical stimulation in cardiac rhythm management
US8903489B2 (en) 2004-12-20 2014-12-02 Cardiac Pacemakers, Inc. Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device
US8285376B2 (en) 2004-12-20 2012-10-09 Cardiac Pacemakers, Inc. Ventricular pacing
US8290586B2 (en) 2004-12-20 2012-10-16 Cardiac Pacemakers, Inc. Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device
US8326423B2 (en) 2004-12-20 2012-12-04 Cardiac Pacemakers, Inc. Devices and methods for steering electrical stimulation in cardiac rhythm management
US8346358B2 (en) 2004-12-20 2013-01-01 Cardiac Pacemakers, Inc. Pacemaker which reestablishes or keeps the physiological electric conduction of the heart and a method of application
US8423139B2 (en) 2004-12-20 2013-04-16 Cardiac Pacemakers, Inc. Methods, devices and systems for cardiac rhythm management using an electrode arrangement
US8934969B2 (en) 2004-12-20 2015-01-13 Cardiac Pacemakers, Inc. Systems, devices and methods for monitoring efficiency of pacing
US8437848B2 (en) 2004-12-20 2013-05-07 Cardiac Pacemakers, Inc. Apparatus for treating the physiological electric conduction of the heart
US8538521B2 (en) 2004-12-20 2013-09-17 Cardiac Pacemakers, Inc. Systems, devices and methods for monitoring efficiency of pacing
US8543203B2 (en) 2004-12-20 2013-09-24 Cardiac Pacemakers, Inc. Endocardial pacing devices and methods useful for resynchronization and defibrillation
US8812106B2 (en) 2004-12-20 2014-08-19 Cardiac Pacemakers, Inc. Apparatus for treating the physiological electric conduction of the heart
US8428715B2 (en) 2004-12-20 2013-04-23 Cardiac Pacemakers, Inc. Methods for treating the physiological electric conduction of the heart
US9031648B2 (en) 2004-12-20 2015-05-12 Cardiac Pacemakers, Inc. Endocardial pacing devices and methods useful for resynchronization and defibrillation
US8739403B2 (en) 2005-01-31 2014-06-03 Medtronic, Inc. Method of manufacturing a medical lead
US20060173262A1 (en) * 2005-01-31 2006-08-03 Medtronic, Inc. Medical lead with segmented electrode
US7761985B2 (en) 2005-01-31 2010-07-27 Medtronic, Inc. Method of manufacturing a medical lead
US20060168805A1 (en) * 2005-01-31 2006-08-03 Michael Hegland Method of manufacturing a medical lead
US8000808B2 (en) 2005-01-31 2011-08-16 Medtronic, Inc. Medical lead with segmented electrode
US9023030B2 (en) * 2007-10-09 2015-05-05 Boston Scientific Scimed, Inc. Cooled ablation catheter devices and methods of use
US20090093811A1 (en) * 2007-10-09 2009-04-09 Josef Koblish Cooled ablation catheter devices and methods of use
US8688234B2 (en) 2008-12-19 2014-04-01 Cardiac Pacemakers, Inc. Devices, methods, and systems including cardiac pacing
US8565880B2 (en) 2010-04-27 2013-10-22 Cardiac Pacemakers, Inc. His-bundle capture verification and monitoring

Also Published As

Publication number Publication date Type
DE2319054B2 (en) 1979-06-21 application
DE2319054C3 (en) 1980-03-06 grant
GB1453424A (en) 1976-10-20 application
DE2319054A1 (en) 1974-10-17 application
NL7405013A (en) 1974-10-16 application
NL172212B (en) 1983-03-01 application
US3911928A (en) 1975-10-14 grant
JPS5041371A (en) 1975-04-15 application
NL172212C (en) 1983-08-01 grant
FR2225179A1 (en) 1974-11-08 application
FR2225179B1 (en) 1978-01-06 grant
JPS5713301B2 (en) 1982-03-16 grant

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Legal Events

Date Code Title Description
RR Request for reexamination filed

Effective date: 19851127

B1 Reexamination certificate first reexamination