Foetal heart rate apparatus and method in which average foetal h

Details Foetal heart rate apparatus and method in which average foetal h Foetal heart rate apparatus and method in which average foetal h

1975-04-15

1977-06-07

Kamm, William E.

Surgery

Truss

Perineal

128 206A, A61B 504

Patent

active

040276570

ABSTRACT:
A method and an apparatus for measuring the variations of the foetal heart rate particularly during labor. According to this method, an average value is determined from zones where no deceleration occurs. In order to avoid variations due to small parasitic signals, this average value is compared with a filtered value, corresponding to the average value during a small number of periods of the electrocardiogram. This apparatus allows a practitioner to obtain a binary indication on the decelerations of foetal heart rate and accordingly an indication on the possible foetal stress.

REFERENCES:
patent: 3575162 (1971-04-01), Gaarder
patent: 3599628 (1971-08-01), Abbenante et al.
patent: 3780725 (1973-12-01), Goldberg
patent: 3878833 (1975-04-01), Arneson et al.

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