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US 6,671,530 B2Granted
Positioning method for pulse oximetry fetal sensor
AssigneeNellcor Puritan Bennett LLC
InventorsChristopher Chung, Helen M. McNamara
Life of this patent
Estimating the term…
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.
Claims8
A fetal oximetry apparatus comprising:
- a sensor for detecting oxygen saturation, said sensor being configured to contact a fetus without a positive attachment mechanism;
- means for providing signals to and from the sensor;
- and
- means for accurately placing the sensor at a site on the fetus beyond the presenting part and beyond the transcervical region.
1 more element
Dependencies are inferred from the claim text.