GB1281174A - An apparatus for the direct determination of the magnitude and orientation of a spatial cardiac vector - Google Patents

An apparatus for the direct determination of the magnitude and orientation of a spatial cardiac vector

Info

Publication number
GB1281174A
GB1281174A GB32437/69A GB3243769A GB1281174A GB 1281174 A GB1281174 A GB 1281174A GB 32437/69 A GB32437/69 A GB 32437/69A GB 3243769 A GB3243769 A GB 3243769A GB 1281174 A GB1281174 A GB 1281174A
Authority
GB
United Kingdom
Prior art keywords
cardiac vector
magnitude
cardiac
vector
july
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
GB32437/69A
Inventor
Zoltan Antaloczy
Erno Solti
Kalman Horvath
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.)
MUSZERIPARI KI
Original Assignee
MUSZERIPARI KI
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 MUSZERIPARI KI filed Critical MUSZERIPARI KI
Publication of GB1281174A publication Critical patent/GB1281174A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
    • G06G7/60—Analogue computers for specific processes, systems or devices, e.g. simulators for living beings, e.g. their nervous systems ; for problems in the medical field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/339—Displays specially adapted therefor
    • A61B5/341—Vectorcardiography [VCG]

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Neurosurgery (AREA)
  • Physiology (AREA)
  • Pathology (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

1281174 Measuring cardiac vectors MUSZERIPARI KUTATO INTEZET 11 July 1969 [11 July 1968] 32437/69 Heading G1N Apparatus for determining the magnitude and angular orientation of a spotial cardiac vector comprises squaring, summing and square root extraction circuits which produce a voltage representing the magnitude |V| of the cardiac vector |V|=#(Vx<SP>2</SP>)+(Vy)<SP>2</SP>+(Vz)<SP>2</SP>, where Vx, Vy, Vz are the components in a three-dimensional rectangular co-ordinate system of the cardiac vector which components are derived using the biocurrents flowing in a known electro-cardiograph lead system RA to H. Further circuit blocks produce voltages representing an angle of between the projection of the cardiac vector on to the x-z plane and the z or x axis and an angle w between the cardiac vector and the projection. The measured magnitude |V| and angular orientations #, w are displayed on three channels of a four channel recorder sz of which the fourth channel displays a selected waveform of the known P, Q, R, S, ST and T waves so as to identify the resultant cardiac vector.
GB32437/69A 1968-07-11 1969-07-11 An apparatus for the direct determination of the magnitude and orientation of a spatial cardiac vector Expired GB1281174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUAA000618 1968-07-11

Publications (1)

Publication Number Publication Date
GB1281174A true GB1281174A (en) 1972-07-12

Family

ID=10992952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32437/69A Expired GB1281174A (en) 1968-07-11 1969-07-11 An apparatus for the direct determination of the magnitude and orientation of a spatial cardiac vector

Country Status (3)

Country Link
DE (1) DE1933185A1 (en)
GB (1) GB1281174A (en)
SE (1) SE361813B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055226A1 (en) * 1998-04-30 1999-11-04 Medtronic Physio-Control Manufacturing Corp. Method and apparatus for detecting a condition associated with acute cardiac ischemia

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL67815A (en) * 1982-02-12 1988-01-31 Sanz Ernst Method and apparatus for cardiogonometry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055226A1 (en) * 1998-04-30 1999-11-04 Medtronic Physio-Control Manufacturing Corp. Method and apparatus for detecting a condition associated with acute cardiac ischemia
US6171256B1 (en) * 1998-04-30 2001-01-09 Physio-Control Manufacturing Corporation Method and apparatus for detecting a condition associated with acute cardiac ischemia

Also Published As

Publication number Publication date
DE1933185A1 (en) 1970-03-12
SE361813B (en) 1973-11-19

Similar Documents

Publication Publication Date Title
US3840726A (en) Position locator
JPS56155439A (en) Display system
US3688252A (en) Navigational recording and display aid
DE3681838D1 (en) METHOD AND CIRCUITS FOR VIDEO SIGNAL PROCESSING.
AU3986489A (en) A system and method for locating an underground probe
GB1426388A (en) Isometric imaging system
ATE59616T1 (en) INFORMATION PRESENTATION SYSTEM.
GB1281174A (en) An apparatus for the direct determination of the magnitude and orientation of a spatial cardiac vector
ES8306255A1 (en) Co-ordinate measuring systems.
US4283763A (en) System for graphic representation of vessel&#39;s position on Mercator map
GB1528581A (en) Position sensors for displays
JO1611B1 (en) Universal map display system, in paticular of visualisation on an object whose position is identified using any coordinate system
GB979013A (en) Apparatus for testing the unbalance of a rotating part of a machine
SU1064251A1 (en) Method of determination of dipole field source magnetic moment and application point coordinates thereof
GB1162316A (en) Improvements in or relating to Chart Position Indicating Apparatus
SU1084830A1 (en) Device for simulating movement of vessel near shore
US3671730A (en) Electronic device for plane graphical representation with perspective effect
GB1520452A (en) Electronic curved surfache simulator
US2924891A (en) Apparatus for simulating radio navigational aids
SU1092453A1 (en) Device for detecting and tracing metal lines
SU855539A1 (en) Device for measuring time parameters of bell-shaped pulse
JPS5914772Y2 (en) True wind direction and speed calculation device
SU1145248A1 (en) Movable object rotation angle component meter
JPS6227845Y2 (en)
JPH06207829A (en) Three-dimensional measuring apparatus without limit to measuring range

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees