Coincidence detection continuously compares the maternal heart rate, as derived from maternal SpO2 or ECG measurements, to the fetal heart rate. When the two rates are the same, the monitor alerts the caregiver. While traditional coincidence detection is effective, it requires that SpO2 and/or ECG are measured with separate sensors and/or electrodes.
When using the Philips Toco MP transducer, those separate sensors and/or electrodes are not needed to perform coincidence detection. This creates a more comfortable experience for the mother and does not require additional work for the clinician.