Sensor to detect changes in the cross section of an elongated body cavity
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United States of America Patent
Stats
-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Oct 7, 1998
filing date -
May 20, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A medical apparatus (1) for detecting changes in the cross section of an elongate body cavity, for example, a human urinary tract. The apparatus includes a retainer portion (60) and a sensor portion (10) connected to the retainer portion and having a sensitive body (30) of flexible material. The sensor portion has a first end portion which is fixed to the retainer device (60). The sensitive body is designed as a catheter-like device projecting from the retainer portion (60) and provided at its free end (17) with a rigid closure (37). The sensitive body is hollow and its cavity varies according to the compression of the sensitive body due to cross-sectional changes of the elongated body being examined. A pressure-sensing device indicates the pressure in the cavity and thus the cross sectional changes of the elongated body.
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