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Apparatus for monitoring fetal heart-beat

  • US 20040243015A1
  • Filed: 03/24/2004
  • Published: 12/02/2004
  • Est. Priority Date: 10/03/2001
  • Status: Abandoned Application
First Claim
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1. Apparatus for the detection of a fetal electrocardiogram (fECG), the apparatus (30, 44, 48) comprising:

  • a plurality of low-noise electrodes (1-3, R) for external skin (40) placement during pregnancy, each electrode (1-3, R) being connectable to low-noise signal recording and processing means (34, 36, 46, 47) wherein, when in use, the signal recording and processing means (34, 36, 46, 47) is arranged;

    to record signals indicative of voltages developed between pairs of electrodes (1-3, R) in a plurality of signal channels (60);

    to process digitised data within the plurality of signal channels (60) in order to generate at least one source signal (3.4, 0.2) which relates to the fECG of a single fetus; and

    on identification of the at least one source signal (3.4, 0.2) relating to the single-fetus fECG, to reconstruct, for at least one signal channel, that component of the digitised data within the channel which is attributable to that fetus, and therefore corresponds to a single-channel fECG.

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