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Machine translation
1. (WO1980000054) MEASUREMENT SIGNAL TRANSMITTER FOR CONTINUOUS WATCHING OF THE MOTHER AND THE CHILD BEFORE AND DURING CHILD BIRTH
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000054    International Application No.:    PCT/EP1979/000047
Publication Date: 24.01.1980 International Filing Date: 15.06.1979
IPC:
A61B 5/00 (2006.01), A61B 5/03 (2006.01)
Applicants:
Inventors:
Priority Data:
2826391 16.06.1978 DE
Title (EN) MEASUREMENT SIGNAL TRANSMITTER FOR CONTINUOUS WATCHING OF THE MOTHER AND THE CHILD BEFORE AND DURING CHILD BIRTH
(FR) EMETTEUR DE SIGNAUX DE MESURE POUR LA SURVEILLANCE CONTINUE DE LA MERE ET DE L"ENFANT AVANT ET PENDANT L"ACCOUCHEMENT
Abstract: front page image
(EN)With a view to continuous watching of the mother and the child before and during child birth, a capsule (10) is placed on the lower part of the abdomen of the mother. This capsule contains a measurement signal generator (20, 22, 32, 42, 54, 56) which provides more than two data concerning the status of the mother and the child, for example, the ECG, the work of the child birth, the temperature of the skin, the hart beats of the foetus. These data are converted into pulses at determined repetition frequency by clock pulses by means of a multiplexer (64) and a modulator in the width of the pulses (68). This pulses are transmitted to a receiver (57) by a transmitter (16) placed into the capsule (10), transformed into analog signals and transcribed by a potentiometric register (58). The width of the pulses is limited by a time limitation circuit (78-84), at a value which is smaller than the time spacing of the clock pulses. The potentiometric register (58) comprises a capacitive-mechanical divider (110) acting as a detector for the balancing of the deviation of the register. This divider is connected so that the progress in temperature and the linearity of the components entered later should not be critical.
(FR)En vue de la surveillance continue de la mere et de l"enfant avant et pendant l"accouchement, une capsule (10) est placee sur le bas-ventre. Cette capsule contient un generateur de signaux de mesure (20, 22, 32, 42, 54, 56) qui fournit plus de deux donnees sur l"etat de la mere et de l"enfant, par exemple l"ECG, le travail de l"accouchement, la temperature de la peau, le bruit du coeur du foetus. Ces donnees sont converties en impulsions a frequence de repetition determinee par les impulsions d"horloge au moyen d"un multiplexeur (64) et d"un modulateur en largeur des impulsions (68). Ces impulsions sont transmises a un recepteur (57) par un emetteur (16) place dans la capsule (10), transformees en signaux analogiques et transcrites par un enregistreur potentiometrique (58). La largeur des impulsions est limitee par un circuit de limitation temporelle (78-84), a une valeur qui est plus petite que l"espacement temporel des impulsions d"horloge. L"enregistreur potentiometrique (58) comprend un diviseur (110) capacitif-mecanique agissant comme detecteur pour l"equilibrage de la deviation de l"enregistreur. Ce diviseur est connecte de telle facon que la marche en temperature et la linearite des composants relies apres coup ne soient pas critiques.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)