Stethoscope

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OBJECT TYPE: non-specific/binaural/Littmann
DATE: 1961–1979
ARTIFACT NUMBER: 2002.0850.001

MANUFACTURER: Cardiosonics
MODEL: Unknown
LOCATION: Cambridge, Massachusetts, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: Dull silver metal ear tubes; silver metal chest piece may be nickel-plated; off-white moulded synthetic ear buds; dull, dark brown synthetic tubing; opaque synthetic membrane bordered by dark [black?] ring.

Dimensions

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

Length: 25.5 cm
Width: 12.5 cm
Height: 2.5 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: Cardiosonics
Country: United States of America
State/Province: Massachusetts
City: Cambridge

Context

Country: North America
State/Province: Unknown
Period: Presumably used c. 1960s-1970s; possibly also used later.
Canada: Part of a large collection of medical artifacts, archival material & trade literature transferred to CSTM in 2002 from the former History of Medicine Museum, Toronto, ON.
Function: Allows user to hear sounds from within the body. Especially used to listen to heart, pulse & lungs.
Technical: Developed by Dr. David Littmann in 1961, this instrument rapidly became popular: it's simple design remains the basis for most stethoscopes used in medical practice today [2010]. It's open chest piece allows the user to better hear low-pitched sounds; firm tubing has a single lumen bore; it is constructed of the shortest practical overall length; has a spring with precise tension to hold the ear tubes apart; and is lightweight and convenient to carry and use.
Area Notes: Unknown

Details

Markings: "LITTMANN STETHOSCOPE/ PAT. PEND./ BY CARDIOSONICS" stamped into back of chest piece. UHN catalogue no. "X966.7" printed by hand in white ink on ear tubes.
Missing: Appears complete.
Finish: Dull silver metal ear tubes; silver metal chest piece may be nickel-plated; off-white moulded synthetic ear buds; dull, dark brown synthetic tubing; opaque synthetic membrane bordered by dark [black?] ring.
Decoration: N/A

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

Cardiosonics, Stethoscope, circa 1961–1979, Artifact no. 2002.0850, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2002.0850.001/

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