Tonometer tester

Details Tonometer tester Tonometer tester

1975-08-08

1977-01-04

Goldstein, Herbert

Measuring and testing

Instrument proving or calibrating

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

128 2T, G01L 2500

Patent

active

040006409

ABSTRACT:
A device which is designed to test applanation type tonometers. The device includes a reservoir to maintain a constant liquid level mounted on top of a liquid filled vertical column having multiple connections with outlet means closed by thin membranes with characteristics so that a known liquid pressure deforms the membrane in a bulbous shape approximating the contour of the human eye which thus provides said device with the means for testing applanation type tonometers.

REFERENCES:
patent: 585883 (1897-07-01), Bosworth
patent: 1699812 (1929-01-01), Sartakoff
patent: 3736789 (1973-06-01), Drew
patent: 3889518 (1975-06-01), DeNouter
Freid et al., "The F-B Cornea Tonometer Calibration Device" in J. Optom. & Archives of Am. Acad. of Optom., vol. 49, No. 2, Feb. '72, pp. 96-105.

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