IL40663A - Atrial and ventricular demand pacer - Google Patents

Atrial and ventricular demand pacer

Info

Publication number
IL40663A
IL40663A IL40663A IL4066372A IL40663A IL 40663 A IL40663 A IL 40663A IL 40663 A IL40663 A IL 40663A IL 4066372 A IL4066372 A IL 4066372A IL 40663 A IL40663 A IL 40663A
Authority
IL
Israel
Prior art keywords
patient
heart
ventricular
beat
atrial
Prior art date
Application number
IL40663A
Other versions
IL40663A0 (en
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
Application filed by American Optical Corp filed Critical American Optical Corp
Publication of IL40663A0 publication Critical patent/IL40663A0/en
Publication of IL40663A publication Critical patent/IL40663A/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
    • A61N1/365—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)

Claims (7)

CLAIMS 1. A pacer comprisin termina means for connection to a patient's heart for atrial stimulation, terminal means for connection to said patient's heart fo ventricular stimulation, means for detecting an a rial beat of said patient's heart, means fo detecting a ventricular beat of said patient's heart, means responsive to the operation of said ventricular detecting means for generating an electrical stimulus on ©aid ventricular ermlmls^a s following a firs predetermined time Interval after the last detected ventricular beat only of said patient's aart, means for generatin an electricalstimulus on said atrial terminal means ollowing & second predetermined time interval after the les ventricular beat only of said patient's heart, and means for preventing the generation of an electrical stimulus on said atrall terminal means resonsive to the detection of an atrial beat of said patient's heart during said second predetermined time interval. 2. A pace in accordance with claim 1 wherein said first predeterm ed time interval is longer than said second predetermined time interval. 3. A pacer in accordance with claim 2 wherein s aid second predetermined time Interval Is shorter than a probable minimum interval between successive ventricular beats of said patient's heart and is longer than a probable maximum interval between a ventricular beat and the next atrial beat of said patient's heart. 4· pacer in accordance with claim therein said first predetermined time interval is longer than the usually 40663/2 -occurring interval between successive -.tventricular beats of said patient's heart. A pacer comprising terminal means for connection to a patient's heart for ventricular stimulation, terminal means for connection to said patient's heart for atrial stimulation, a first timing circuit means for generating an electrical impulse on said ventricular terminal means, a second timing circuit means for generating an electrical impulse on said atrial terminal means, means for detecting a ventricular beat of said patient's heart and responsive thereto for resetting both of said first and second timing circuit means, and neana for detecting an atrial beat of said patient's heart and responsive thereto for resetting said second iming circuit. 6, A pace in accordance with claim 5 wherein the period of said first timing circuit meant? is longer than a probable maximum interval between two successive ventricular beats of said patient's heart. 7. A pacer in accordance with claim 6 wherein the period of said second timing circuit means is longer than a probable maximum interval between a ventricular beat and the next atrial beat of said patient's heart. For the Applicants WHAT I CLAIM IS:
1. A pacer comprising terminal means for connection to a patient's heart for atrial stimulation, terminal means for connection to said patient's heart for ventricular stimulation, means for detecting an atrial beat of said patient's heart, means for detecting a ventricular beat of said patient's heart, means for generating an electrical stimulus on said ventricular terminal means following a first predetermined time interval after the last ventricular beat of said patient's heart, means for generating an electrical stimulus on said atrial terminal means following a second predtermined time interval after the last ventricular beat of said patient's heart, and means for preventing the generation of an electrical stimulus on said atrial terminal means responsive to the detection of an atrial beat of said patient's heart during said second predetermined time interval.
2. A pacer in accordance with claim 1 wherein said first predetermined time interval is longer than said second predetermined time interval.
3. A pacer in accordance with claim 2 wherein said second predetermined time interval is shorter than the normal interval between successive ventricular beats of said patient's heart and is longer than the normal interval between a ventricular beat and the next atrial beat of said patient's heart.
4. A pacer in accordance with claim 3 wherein said first predetermined time interval is longer than the normal interval between successive ventricular beats of said patient's heart.
5. A pacer comprising terminal means for connection to a patient's heart for ventricular stimulation, terminal means for connection to said patient's heart for atrial stimulation, a first timing circuit for generating an electrical impulse on said ventricular terminal means, a second timing circuit for generating an electrical impulse on said atrial terminal means, means for detecting a ventricular beat of said patieht's heart and responsive thereto for resetting both of said first and second timing circuits, and means for detecting an atrial beat of said patient's heart and responsive thereto for resetting said second timing circuit.
6. A pacer in accordance with claim 5 wherein the period of said first timing circuit is longer than the normal interval between two successive ventricular beats of said patient's heart.
7. A pacer 'in accordance with claim 6 wherein the period of said second timing circuit is longer than the normal interval between a ventricular beat and.the next atrial beat of said patient's heart.
IL40663A 1971-12-06 1972-10-25 Atrial and ventricular demand pacer IL40663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20519571A 1971-12-06 1971-12-06

Publications (2)

Publication Number Publication Date
IL40663A0 IL40663A0 (en) 1972-12-29
IL40663A true IL40663A (en) 1976-05-31

Family

ID=22761202

Family Applications (1)

Application Number Title Priority Date Filing Date
IL40663A IL40663A (en) 1971-12-06 1972-10-25 Atrial and ventricular demand pacer

Country Status (8)

Country Link
JP (1) JPS5645628B2 (en)
DE (1) DE2255422A1 (en)
FR (1) FR2162393B1 (en)
GB (1) GB1374720A (en)
IL (1) IL40663A (en)
IT (1) IT973654B (en)
NL (1) NL7214999A (en)
ZA (1) ZA727526B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340191A1 (en) * 1976-02-04 1977-09-02 Gatrun Anstalt BANDEROLES MANUFACTURING AND DEPOSIT SYSTEM
DE2701104A1 (en) * 1977-01-12 1978-07-13 Medtronic France S A PACEMAKER
AU541479B2 (en) * 1980-10-14 1985-01-10 Medtronic, Inc. Heart pacemeker with separate a-v intervals for a trial synchronous and atrial-ventricular sequential pacing modes
DE3127597A1 (en) * 1981-07-13 1983-02-17 Siemens AG, 1000 Berlin und 8000 München METHOD AND PACEMAKER FOR BIFOCAL STIMULATION OF THE HEART

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253596A (en) * 1963-05-27 1966-05-31 Cordis Corp Cardiac pacer
US3595242A (en) * 1969-03-26 1971-07-27 American Optical Corp Atrial and ventricular demand pacer

Also Published As

Publication number Publication date
JPS5645628B2 (en) 1981-10-27
FR2162393B1 (en) 1976-07-02
FR2162393A1 (en) 1973-07-20
AU4905172A (en) 1974-05-23
IT973654B (en) 1974-06-10
JPS4864789A (en) 1973-09-07
DE2255422A1 (en) 1973-06-07
GB1374720A (en) 1974-11-20
NL7214999A (en) 1973-06-08
ZA727526B (en) 1973-11-28
IL40663A0 (en) 1972-12-29

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