04027657 is referenced by 3 patents and cites 4 patents.

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.

Title
Foetal heart rate apparatus and method in which average foetal heart rate during non-deceleration periods is compared with the average foetal heart rate over a fewer number of periods
Application Number
5/568160
Publication Number
4027657
Application Date
April 15, 1975
Publication Date
June 7, 1977
Inventor
Andre Ripoche
Vitry-sur-Seine
FR
Roger Le Houezec
Villejuif
FR
Jacques Chavinie
Saint-Maur
FR
Gilbert Sturbois
Paris
FR
Jean Rene Zorn
Bourg-la-Reine
FR
Michel Tournaire
Paris
FR
Claude Sureau
Paris
FR
Agent
Cushman Darby & Cushman
Assignee
Agence Nationale de Valorisation de la Recherche
FR
IPC
A61B 5/04
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