Portable electrocardiograph machine

Portable electrocardiograph machine Portable electrocardiograph machine Portable electrocardiograph machine

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Portable electrocardiograph machine, No.C129668, by the Cambridge Instrument Co. Ltd., 1929

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Portable electrocardiograph, Cambridge, England, 1929

Portable electrocardiograph machine, No.C129668, by the Cambridge Instrument Co. Ltd., 1929.

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An electrocardiograph produces ‘traces’ or visual graphical records of the electrical activity in a person’s heart. The records are called electrocardiograms or ECGs. Physicians examine them for irregularities that indicate disease, birth defects or heart attacks. This example was made by the Cambridge Scientific Instrument Co Ltd.

The first human electrocardiogram was made by Englishman A. D. Waller (1856-1922) in 1887. However, the modern practice of electrocardiography was made possible by a device called the ‘string galvanometer’. This was invented around 1903 by Dutch physiologist Willem Einthoven (1860-1927). Einthoven won the Nobel Prize for Physiology/Medicine for his invention. Cambridge Scientific Instrument Company made the first commercial machine in 1908.

Measurements:
overall: 340 mm x 580 mm x 290 mm,
Materials:
aluminium, copper alloy, iron, plastic, painted coating, lacquer, fibre
Object Number:
1979-204 Pt1
type:
electrocardiograph
Image ©
The Board of Trustees of the Science Museum
plastic or fibre contained in a box from a portable electrocardiograph machine

plastic or fibre contained in a box from a portable electrocardiograph machine

Damaged plastic or fibre contained in a box from a portable electrocardiograph machine, No.C129668, by the Cambridge Instrument Co. Ltd., 1929

Materials:
fibre, plastic
Object Number:
1979-204 Pt3
type:
plastic or fibre