Use and testing of sphygmomanometers.
Jean L. Wilson, Herbert N Eaton, H.B. Hendrickson · Technologic papers of the Bureau of Standards · 1927
This publication contains a brief discussion of the characteristics of blood pressure in the human body, a description of the methods and instruments used in measuring arterial blood pressure, and resume of results obtained in an investi- gation of the performance of the pressure indicators used in blood-pressure measurement.As a result of this investigation, standard tests were formulated and tolerances for accuracy of performance were established for use by the Bureau of Standards in testing blood-pressure gauges.The recommendations of leading medical authorities on blood pressure in the United States were given careful consideration in establishing the tolerances. CONTENTSPage '] Sphygmomanometers 73 gets farther from the heart until the pressure on the other side of the capillaries, in the venous system, is substantially free from fluctuations due to the arterial wave.