Positioning method for pulse oximetry fetal sensor
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United States of America Patent
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Oct 5, 1999
Issued Date -
N/A
app pub date -
Oct 20, 1997
filing date -
Aug 22, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intrauterine pulse oximetry apparatus and method are provided to measure fetal blood oxygen saturation at sites in a preferred region on the fetus. The sensor of the apparatus is attached to a stiff cable which can be inserted into the uterus past the presenting part and transcervical region of the fetus. The cable may have visual and tactile markings by which the user, without seeing or feeling the sensor, can guide it to an appropriate site on the fetus and for use in determining the depth of the sensor in the vagina.
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Family
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