Physiological sensing unit
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United States of America Patent
Stats
-
Feb 21, 1984
Grant Date -
N/A
app pub date -
Apr 27, 1981
filing date -
May 16, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed herein is a physiological, electrically heated, thermostatically controlled sensing unit of the type used in the medical field for measuring blood contents, such as oxygen. A typical unit comprises a housing for application to the skin of a living being, an electric heater element within the housing, and a temperature-responsive switching circuit, also accommodated within the housing. The switching circuit automatically disconnects a power supply to the heater element when the skin temperature exceeds an adjustable predetermined threshold level. The power supply for the switching circuit is directly connected to the power supply for the heater element within the housing.
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Family
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Cited Art Landscape
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