Randall N J, Steer P J, Sutherland I A
Department of Obstetrics and Gynaecology, St Mary's Hospital Medical School, London, UK.
J Biomed Eng. 1988 Apr;10(2):159-64. doi: 10.1016/0141-5425(88)90093-3.
The feasibility of detecting the fetal ECG (FECG) from within the uterus in labour by a technique which is non-invasive to the fetus, has been investigated. The design of a special multi-electrode flexible probe has demonstrated that the FECG can be obtained with signal amplitudes of 20-300 microV and a success rate similar to that of the scalp electrode. Under favourable conditions very large signals can be detected in utero compared to a scalp electrode, but average signal amplitudes are lower. The probe is suitable as a carrier for other sensors such as pressure and temperature transducers. Currently, simultaneous FECG and intrauterine pressure measurement using a commercially available transducer within the same probe has been achieved.
人们已经对一种在分娩过程中从子宫内检测胎儿心电图（FECG）的技术进行了研究，该技术对胎儿无创。一种特殊的多电极柔性探头的设计表明，能够获得信号幅度为20 - 300微伏的胎儿心电图，成功率与头皮电极相似。在有利条件下，与头皮电极相比，子宫内可检测到非常大的信号，但平均信号幅度较低。该探头适合作为压力和温度传感器等其他传感器的载体。目前，已实现使用同一探头内的市售换能器同时测量胎儿心电图和子宫内压力。
