Skin blood flow measurement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 24, 2001
Grant Date -
N/A
app pub date -
Apr 6, 2000
filing date -
Aug 14, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Apparatus (10) for measuring skin blood flow includes apparatus (12) for applying a predetermined temperature gradient to a portion of skin, thereby to change the temperature thereat from a first temperature to a second temperature; a single temperature sensing element (14) for measuring a temperature at a selected location near the portion of skin; a control apparatus (20) for operating the apparatus (12) for applying a predetermined temperature gradient, and further for operating the temperature sensing element (14) in first and second operative modes; in the first mode the temperature sensing element (14) measuring a first reference temperature at the selected location, and in the second mode the temperature sensing element (14) being operable to measure a second temperature at the selected location; wherein the second mode, the control apparatus (20) operates the apparatus (12) for applying a predetermined temperature gradient so as to maintain the predetermined gradient between the first and second temperatures; and processing apparatus (47) associated with the temperature sensing element (14) for evaluating a skin blood flow corresponding to the measured first and second temperatures, and the electrical steady state power required to maintain the predetermined temperature gradient.
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