Internal apparatus for continuous electrical and oximetric intrapartum monitoring of the fetus

摘要

An internal apparatus for continuous electrical and oximetric intrapartum fetal monitoring includes a base assembly containing a photodetector and a single spiral probe extending from the base assembly, which probe penetrates a fetal scalp. The probe contains an optical fiber having a light source which directs an emerging cone of light toward said photodetector. The probe also contains means for connecting the photodetector to an external monitor and means for connecting the spiral probe to the external monitor, whereby the internal apparatus measures the arterial hemoglobin oxygen saturation of the fetus.