| 摘要 |
The invention provides an intrauterine probe for monitoring fetal heart rate (FHR) during labour which comprises an elongate, flexible strip-like base member formed from electrically insulating material and having at least two, longitudinally spaced electrodes located in one face thereof, each electrode protruding sufficiently from the face of the base member so that it can be pressed into direct contact with fetal skin and having a portion of insulating material between the electrodes whose profile is such that in use, a thin electrolyte film of amniotic fluid having a high impedance is formed between the electrodes. |
