Abstract: A single-use connector (1) for a fetal electrode is provided. The housing (10) of the connector is molded together as two shells (10a, 10b) of substantially rigid material where each shell is integrally connected to the other along a common straight portion of edge (12). This provides the housing with a clam-shell form. The housing is also provided with a socket (11) for receiving a plug (2) of a fetal electrode. The plug is provided with two or more electrical contacts (23, 24) to feed electrical signals from the fetal electrode.

Abstract: An electrode assembly comprising a fetal electrode (1) that is connected to a drive tube (31) by a torque limiting connection (30). The connection allows the drive tube to separate from the electrode hub once a predetermined torque has been reached. The electrode hub is also provided with a deflection surface (9) that deflects the drive tube away from the fetal electrode into the hand of the operator, as rotation of the drive tube continues beyond the point of disconnection. Features are also provided to make the fetal electrode more compact and to optimise the fECG signal recorded on the electrode wires (5, 9).

Abstract: A single-use connector (1) for a fetal electrode is provided. The housing (10) of the connector is moulded together as two shells (10a, 10b) of substantially rigid material where each shell is integrally connected to the other along a common straight portion of edge (12). This provides the housing with a clam-shell form. The housing is also provided with a socket (11) for receiving a plug (2) of a fetal electrode. The plug is provided with two or more electrical contacts (23, 24) to feed electrical signals from the fetal electrode.

Abstract: An electrode assembly comprising a fetal electrode (1) that is connected to a drive tube (31) by a torque limiting connection (30). The connection allows the drive tube to separate from the electrode hub once a predetermined torque has been reached. The electrode hub is also provided with a deflection surface (9) that deflects the drive tube away from the fetal electrode into the hand of the operator, as rotation of the drive tube continues beyond the point of disconnection. Features are also provided to make the fetal electrode more compact and to optimise the fECG signal recorded on the electrode wires (5, 9).

Abstract: Apparatus for reducing signal noise in a fetal ECG signal obtained by using a unipolar ECG lead configuration 1, 3 thereby detecting a predominant T wave vector and avoiding changes in ECG waveform shape due to fetal rotation through the birth canal. The ECG signal is transmitted by means of a first signalling link 5 to the signal noise reducing components which include a conventional analogue filter 7, a digital high pass filter 9 for attenuating low frequencies and with a predetermined cut-off frequency, the cut-off frequency being essentially between 0.2 and 1.7 Hz, and a further digital filter 11. The filtered ECT signal is arranged as output signal from the electrical arrangement by means of a second signalling link 13.