Non-invasive fetal probe having improved mechanical and...

Details Non-invasive fetal probe having improved mechanical and... Non-invasive fetal probe having improved mechanical and...

A - Human Necessities

61

B

A61B 5/0448 (2006.01)

Patent

CA 2217666

A non-invasive fetal probe having enhanced adhesion and electrical isolation for attaching to the presenting part of a fetus and sensing at least one fetal parameter during labor and delivery. In one embodiment of the present invention, the electrical isolation of the fetal probe includes a non-conductive element used in combination with various conductive assemblies made from gel formulations which are polymerized to form a fetal sensor. The non-conductive element in addition to providing physical separation also enhances electrical separation between fetal and maternal sensing elements of the fetal probe. Non-invasive fetal probes having low-profile designs are also provided which help decrease the tendency of the fetal probes to detach caused by forces generated upon the probe by the head of the fetus, the cervix of the mother, or both.

L'invention est une sonde foetale non invasive à adhérence et à isolement électrique améliorés qui est fixée à la présentation d'un foetus pour mesurer un paramètre foetal au moins durant le travail et l'accouchement. Dans l'une des concrétisations de l'invention, l'isolant électrique de la sonde comprend un élément non conducteur utilisé conjointement avec divers ensembles conducteurs faits de gels qui sont polymérisés pour former une sonde foetale. En plus de servir de séparateur, ledit élément non conducteur accentue l'isolement électrique entre les détecteurs appliqués au foetus et à la mère. Sont également décrites des sondes foetales non invasives profilées qui ont moins tendance à se déconnecter sous l'effet des forces appliquées par la tête du foetus, le col de l'utérus ou les deux.

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