Tonometer

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Ingenium, 2002.0211.001
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OBJECT TYPE: MCLEAN
DATE: 1930–1950
ARTIFACT NUMBER: 2002.0211.001

MANUFACTURER: MEYROWITZ, E.B. SURGICAL INSTRUMENTS CO.
MODEL: Unknown
LOCATION: New York, New York, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: Metal with synthetic scale

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 13.2 cm
Width: 7.2 cm
Height: 1.7 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Medical Technology
Category: Instruments
Sub-Category: N/A

Manufacturer

AKA: MEYROWITZ
Country: United States of America
State/Province: New York
City: New York

Context

Country: Unknown
State/Province: Unknown
Period: Unknown
Canada: PART OF COLLECTION OF MR. JOSEF ELSENER; HE WAS SWISS BORN & TRAINED AS AN ARMOURER, EMIGRATED TO CANADA IN 1952 & BECAME A BUSINESSMAN. HIS COLLECTION OF MORE THAN 1000 PIECES WAS FOCUSED ON FINELY MADE APPARATUS INCLUDING MACHINE TOOLS, SURVEYING EQUIPMENT, MEDICAL APPARATUS & SOME ELECTRICAL TEST & RADIO EQUIPMENT.
Function: INSTRUMENT USED TO MEASURE PRESSURE WITHIN EYE (INTROCULAR) & THUS MEASURE DISTORTION OF CORNEA WHICH AFFECTS VISUAL ACUITY & INDICATES EARLY SIGNS OF GLAUCOMA.
Technical: MCLEAN DIRECT READING TONOMETER WAS DEVELOPED CIRCA 1920 (REF. 2).
Area Notes: Unknown

Details

Markings: .1 BLACK LETTERING ON SCALE FOR 10 TO 130/.2 GOLD LETTERING ON EXTERIOR READS "McLean Tonometer" & ON INSIDE "E.B. MEYROWITZ/ SURGICAL INSTRUMENTS CO./ 520 Fifth Ave. New York/ LIMITS OF NORMAL/ INTRA-OCULAR PRESSURE 22-40 mm Hg."
Missing: APPEARS COMPLETE
Finish: .1 FLAT GREY WITH BRUSHED METAL PARTS, WHITE SCALE/.2 TEXTURED BLACK EXTERIOR; METALLIC HARDWARE; GREEN LINING
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

MEYROWITZ, E.B. SURGICAL INSTRUMENTS CO., Tonometer, circa 1930–1950, Artifact no. 2002.0211, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/item/2002.0211.001/

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