GB1307912A - Heart pacemakers - Google Patents

Heart pacemakers

Info

Publication number
GB1307912A
GB1307912A GB1492670A GB1492670A GB1307912A GB 1307912 A GB1307912 A GB 1307912A GB 1492670 A GB1492670 A GB 1492670A GB 1492670 A GB1492670 A GB 1492670A GB 1307912 A GB1307912 A GB 1307912A
Authority
GB
United Kingdom
Prior art keywords
heart
time interval
electrode
capacitor
atrial
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
Application number
GB1492670A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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=25204045&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB1307912(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by American Optical Corp filed Critical American Optical Corp
Publication of GB1307912A publication Critical patent/GB1307912A/en
Expired 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
    • A61N1/365—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

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

1307912 Heart pacemakers AMERICAN OPTICAL CORP 26 March 1970 [26 March 1969] 14926/70 Heading A5R [Also in Division H3] A heart pacemaker comprises an electrode E3 for connection to a patient's heart for atrial stimulation, an electrode El for connection to the heart for ventricular stimulation, means for detecting the beating of the heart, means for generating an electrical stimulus on electrode E3 following a first predetermined time interval after the detection of the last beating of the heart, and means for generating an electrical stimulus on electrode El following a second predetermined time interval after the detection of the last beating of the heart. A capacitor 57, Fig. 1, charges via variable resistors 35 and 37 until, after the second time interval of about 800 m. sec., it reaches a voltage at which transistors T7 and T8 conduct, discharging capacitor 57 therethrough and causing a transistor T9 to conduct to produce a ventricular stimulating impulse between electrodes El and E2 due to discharge of a capacitor 65. Similarly, after the first time interval of about 600 m. sec., an atrial stimulating impulse is produced between electrodes E2 and E3 due to discharge of a capacitor 65', Fig. 3. A ventricular contraction produces a signal on electrode El, corresponding to the E.C.G. R wave, which is applied to transistor Tl which then causes transistors T6 and T6' to conduct to discharge capacitors 57 and 57' respectively, thus preventing application of pulses to electrodes El and E3 if the R wave occurs before the end of the first time interval, atrial stimulation occurring and ventricular stimulation being prevented if the R wave occurs after the end of the first time interval but before the end of the second time interval. The heartbeat detection circuit is prevented from operating during atrial stimulation by a normallyconducting FET transistor 92, since when an atrial stimulating pulse is applied to electrode E3 this pulse also charges a capacitor 93 via a diode 95 causing transistor 92 to turn-off for a period corresponding to the duration of the atrial pulse plus a short period dependent on the time-constant of the capacitor 93 and resistor 94 circuit. Part of the circuit comprising transistors T3, T4 and T5 prevents conduction of transistors T6 and T6' in the presence of noise signals in a manner disclosed in Specification 1266907.
GB1492670A 1969-03-26 1970-03-26 Heart pacemakers Expired GB1307912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US810519A US3595242A (en) 1969-03-26 1969-03-26 Atrial and ventricular demand pacer

Publications (1)

Publication Number Publication Date
GB1307912A true GB1307912A (en) 1973-02-21

Family

ID=25204045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1492670A Expired GB1307912A (en) 1969-03-26 1970-03-26 Heart pacemakers

Country Status (15)

Country Link
US (1) US3595242A (en)
JP (1) JPS4940992B1 (en)
AT (1) AT302522B (en)
BE (1) BE747983A (en)
BR (1) BR7017673D0 (en)
CH (1) CH534524A (en)
DE (1) DE2010724C3 (en)
DK (1) DK130771B (en)
ES (1) ES377899A1 (en)
FR (1) FR2040175A5 (en)
GB (1) GB1307912A (en)
IL (1) IL33744A (en)
NL (1) NL155453B (en)
NO (1) NO126899B (en)
SE (1) SE356903B (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2155903B1 (en) * 1971-10-14 1974-03-29 Bondivenne Jean
ZA727526B (en) * 1971-12-06 1973-11-28 American Optical Corp Atrial and ventricular demand pacer
US3783878A (en) * 1971-12-06 1974-01-08 American Optical Corp Atrial and ventricular pacer having independent rate and av delay controls
US3757791A (en) * 1971-12-30 1973-09-11 American Optical Corp Synchronized atrial and ventricular pacer and timing circuitry therefor
US3814106A (en) * 1972-04-14 1974-06-04 American Optical Corp Atrial and ventricular pacer having independent rate controls and means to maintain a constant av delay
GB1485027A (en) * 1973-11-23 1977-09-08 American Optical Corp Encapsulated galvanic cell
US3906959A (en) * 1974-02-14 1975-09-23 American Optical Corp Liquid leak stop for an implantable heart pacer
DE2701104A1 (en) * 1977-01-12 1978-07-13 Medtronic France S A PACEMAKER
WO1979000070A1 (en) * 1977-07-27 1979-02-22 S Joseph Heart stimulating apparatus
US4343311A (en) * 1980-04-30 1982-08-10 Medtronic, Inc. Atrial refractory control for R-wave rejection in pacemakers
US4386610A (en) * 1980-05-27 1983-06-07 Cordis Corporation Ventricular-inhibited cardiac pacer
US4485818A (en) * 1980-11-14 1984-12-04 Cordis Corporation Multi-mode microprocessor-based programmable cardiac pacer
US4407287A (en) * 1981-02-17 1983-10-04 Medtronic, Inc. Atrial and ventricular-only pacemaker responsive to premature ventricular contractions
US4401119A (en) * 1981-02-17 1983-08-30 Medtronic, Inc. Prolongation of timing intervals in response to ectopic heart beats in atrial and ventricular pacemakers
CS228213B1 (en) * 1981-04-06 1984-05-14 Vladimir Kympl Multivibrator with double amplitude on output signal
DE3127597A1 (en) * 1981-07-13 1983-02-17 Siemens AG, 1000 Berlin und 8000 München METHOD AND PACEMAKER FOR BIFOCAL STIMULATION OF THE HEART
US4890617A (en) * 1987-11-25 1990-01-02 Medtronic, Inc. Dual chamber activity responsive pacer
USRE38119E1 (en) 1989-01-23 2003-05-20 Mirowski Family Ventures, LLC Method and apparatus for treating hemodynamic disfunction
US5205810A (en) * 1990-10-15 1993-04-27 Medtronic, Inc. Muscle powered cardiac assist system
US5265601A (en) * 1992-05-01 1993-11-30 Medtronic, Inc. Dual chamber cardiac pacing from a single electrode
US9931509B2 (en) 2000-12-21 2018-04-03 Medtronic, Inc. Fully inhibited dual chamber pacing mode
US7738955B2 (en) * 2000-12-21 2010-06-15 Medtronic, Inc. System and method for ventricular pacing with AV interval modulation
US6772005B2 (en) 2000-12-21 2004-08-03 Medtronic, Inc. Preferred ADI/R: a permanent pacing mode to eliminate ventricular pacing while maintaining backup support
US7881793B2 (en) * 2000-12-21 2011-02-01 Medtronic, Inc. System and method for ventricular pacing with progressive conduction check interval
US7254441B2 (en) 2000-12-21 2007-08-07 Medtronic, Inc. Fully inhibited dual chamber pacing mode
US7245966B2 (en) 2000-12-21 2007-07-17 Medtronic, Inc. Ventricular event filtering for an implantable medical device
US7130683B2 (en) * 2000-12-21 2006-10-31 Medtronic, Inc. Preferred ADI/R: a permanent pacing mode to eliminate ventricular pacing while maintaining back support
DE20300248U1 (en) * 2002-07-31 2003-09-11 Froli Kunststoffwerk Fromme H Bed frame spring has adjustable upthrust unit with arms resting on supporting curved base plate
US7231249B2 (en) 2003-07-24 2007-06-12 Mirowski Family Ventures, L.L.C. Methods, apparatus, and systems for multiple stimulation from a single stimulator
US20050055057A1 (en) * 2003-09-05 2005-03-10 Mirowski Famliy Ventures, L.L.C. Method and apparatus for providing ipselateral therapy
US20050055058A1 (en) * 2003-09-08 2005-03-10 Mower Morton M. Method and apparatus for intrachamber resynchronization
US7248924B2 (en) * 2004-10-25 2007-07-24 Medtronic, Inc. Self limited rate response
US7593773B2 (en) * 2005-01-21 2009-09-22 Medtronic, Inc. Implantable medical device with ventricular pacing protocol including progressive conduction search
US7542799B2 (en) * 2005-01-21 2009-06-02 Medtronic, Inc. Implantable medical device with ventricular pacing protocol
US7925344B2 (en) 2006-01-20 2011-04-12 Medtronic, Inc. System and method of using AV conduction timing
US8046063B2 (en) 2006-02-28 2011-10-25 Medtronic, Inc. Implantable medical device with adaptive operation
US7783350B2 (en) * 2006-06-15 2010-08-24 Medtronic, Inc. System and method for promoting intrinsic conduction through atrial timing modification and calculation of timing parameters
US7869872B2 (en) * 2006-06-15 2011-01-11 Medtronic, Inc. System and method for determining intrinsic AV interval timing
US7894898B2 (en) * 2006-06-15 2011-02-22 Medtronic, Inc. System and method for ventricular interval smoothing following a premature ventricular contraction
US7565196B2 (en) * 2006-06-15 2009-07-21 Medtronic, Inc. System and method for promoting intrinsic conduction through atrial timing
US7689281B2 (en) 2006-07-31 2010-03-30 Medtronic, Inc. Pacing mode event classification with increased ventricular sensing
US7502647B2 (en) 2006-07-31 2009-03-10 Medtronic, Inc. Rate smoothing pacing modality with increased ventricular sensing
US7715914B2 (en) * 2006-07-31 2010-05-11 Medtronic, Inc. System and method for improving ventricular sensing
US7515958B2 (en) 2006-07-31 2009-04-07 Medtronic, Inc. System and method for altering pacing modality
US7720537B2 (en) * 2006-07-31 2010-05-18 Medtronic, Inc. System and method for providing improved atrial pacing based on physiological need
US7856269B2 (en) 2006-07-31 2010-12-21 Medtronic, Inc. System and method for determining phsyiologic events during pacing mode operation
US7502646B2 (en) * 2006-07-31 2009-03-10 Medtronic, Inc. Pacing mode event classification with rate smoothing and increased ventricular sensing
WO2010099382A1 (en) * 2009-02-27 2010-09-02 Medtronic, Inc. System and method for conditional biventricular pacing
US8265750B2 (en) * 2009-02-27 2012-09-11 Medtronic, Inc. System and method for conditional biventricular pacing
WO2010099421A1 (en) * 2009-02-27 2010-09-02 Medtronic, Inc. A system and method for conditional biventricular pacing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632412A (en) * 1962-05-17
US3433228A (en) * 1966-05-06 1969-03-18 Cordis Corp Multimode cardiac pacer

Also Published As

Publication number Publication date
CH534524A (en) 1973-03-15
BR7017673D0 (en) 1973-03-07
NO126899B (en) 1973-04-09
ES377899A1 (en) 1972-10-16
BE747983A (en) 1970-08-31
IL33744A0 (en) 1970-03-22
DE2010724B2 (en) 1980-03-20
SE356903B (en) 1973-06-12
DK130771B (en) 1975-04-14
DK130771C (en) 1975-09-15
FR2040175A5 (en) 1971-01-15
AT302522B (en) 1972-10-25
DE2010724A1 (en) 1970-10-15
NL155453B (en) 1978-01-16
IL33744A (en) 1973-03-30
JPS4940992B1 (en) 1974-11-06
DE2010724C3 (en) 1981-01-15
NL7003205A (en) 1970-09-29
US3595242A (en) 1971-07-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years