Method and apparatus for determining the accuracy of a sphygmoma

Details Method and apparatus for determining the accuracy of a sphygmoma Method and apparatus for determining the accuracy of a sphygmoma

1979-10-22

1981-05-26

Woodiel, Donald O.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01L 2700

Patent

active

042690587

ABSTRACT:
A method and apparatus for determining the accuracy of a sphygmomanometer whereby the user attaches the sphygmomanometer pressure gauge in an airtight manner onto one end of an air passageway located in a stand, draws a known volume of air through a venting valve attached to the other end of the passageway and into a syringe attached to the venting valve, injects the known volume of air into the sphygmomanometer pressure gauge via the passageway and determines the pressure reading on the face of the pressure gauge. If necessary, the user adjusts the bellows of the pressure gauge to correspond with the reading marked on the syringe and repeats the procedure for different air volumes and pressures.

REFERENCES:
patent: 180625 (1876-08-01), Osborne
patent: 3164979 (1965-01-01), Siegel
patent: 3436955 (1969-04-01), Wilcher

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