Apparatus for measuring inner diameter of tubular body of living being
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United States of America Patent
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Issued Date -
Feb 5, 2009
app pub date -
Jan 18, 2007
filing date -
Jan 25, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for measuring an inner diameter of a tubular body present under a skin of a living being, by emitting an ultrasonic wave from an ultrasonic probe placed on the skin, the apparatus including a reflection-signal detecting portion which detects a reflection signal that is reflected from the tubular body when the ultrasonic wave is emitted from the ultrasonic probe; and an inner-diameter calculating portion which calculates the inner diameter of the tubular body, based on an interval between two groups of reflection waves which are contained by the detected reflection signal and which are reflected from two diametrically opposed portions of a wall of the tubular body, respectively.
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