Antique Cambridge Instrument Co Electrocardiograph Simpli-Trol EKG Machine 2 Box

Description

Antique 1911 Cambridge Instrument Co. Mahogany 2 Box Electrocardiograph Simpli-Trol EKG Machine w/ Power Supply.  Anesthesiologists are responsible for maintaining patient's vital functions during surgery, including monitoring the heart, and if necessary performing CPR; or cardiac resuscitation. EKG and ECG are used interchangeably for electrocardiograph & electrocardiogram.  The electrocardiograph is a machine which displays and documents a graphic representation of the hearts electrical activities.  An electrocardiogram is the graphic tracing of this activity.  Since the Italian physicist Dr. Luigi Galvani (1737-1798) first created the idea of animal electricity in 1787, the work of many scientist have led to the electrocardiographs of present day.  The first machine which could produce a paper record graph of electrical currents was invented in 1867.  The first electrocardiogram of a human was created 20 years later.  In 1901, Dutch physiologist Dr. Willem Einthoven (1860-1927) invented the string galvanometer.  It was commercially manufactured by the Cambridge Scientific Instrument Company around 1911.  The company made many subsequent models, including the Simpli-Trol Portable Model, produced from the 1930's to the 1950's.  In addition to recording the hearts electrical activities electrocardiograms), the instrument also recorded the pulse and heart sounds.  This machine was created for Doctor Alexander M. Burgess, M.D..  It is no. 0-6764.  A wonder archive display piece for a cardiologist today.  Thanks for your time!