A medical instrument which permits the continuous monitoring of fetal ECG and intermittent monitoring of fetal scalp blood pH during labor and delivery. The instrument includes (i) an electrically conductive needle effective as an ECG electrode, (ii) a plurality of pH probes or a single reusable and...http://www.google.com/patents/US6058321?utm_source=gb-gplus-sharePatent US6058321 - Instrument for continuously monitoring fetal heart rate and intermittently monitoring fetal blood pH and method of use
