Oncometer
notes: label: Description
content: A hollow brass "clam-shell" case, hinged at back, with a fastening clasp in front and a tube projecting from one half. This instrument is used for measuring variations in the size of internal organs, in this case kidneys.
label: Description
content: The device was developed by Professor C. R. Roy, of London, in order to study the circulation of the kidney in animal experiments. The kidney under study is enclosed in the oncometer within two soft pieces of thin rubber. The intervening space between the rubber membrane and the oncometer shell is filled with water or oil. As the kidney expands and contracts in response to blood pressure and volume, the level of water (or oil) in the tube rises and falls. When the the device is attached to a recording instrument such as a kymograph, the changes in volume over time may be graphed.
label: Description
content: (SEE: Kemp, Robert Coleman, "Effects of Anaesthetics on the Kidneys, New York Medical Journal, Nov. 18. 1899, p732-8, includes illustration of the device and experimental set-up)
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Navy Department, Naval Medical School
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.M-02374
label: catalog number
content: M-02374
label: accession number
content: 100353
objectType: label: Object Name
content: oncometer, dog kidney
physicalDescription: label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 4 3/8 in x 3 1/2 in x 3 in; 11.1125 cm x 8.89 cm x 7.62 cm
label: Measurements
content: overall: 3 3/8 in x 2 3/8 in x 2 in; 8.5725 cm x 6.0325 cm x 5.08 cm