Transducer for monitoring labor pains

Details Transducer for monitoring labor pains Transducer for monitoring labor pains

1995-02-15

1997-07-22

Hindenburg, Max

Surgery

Truss

Pad

A61B 503

Patent

active

056495480

ABSTRACT:
Watertight transducer for measuring the contraction of the uterus with a transducer casing, wich has on its underside a diaphragm made from a soft material, such as e.g. elastomeric plastic. The transfer of the uterine contractions takes place from the diaphragm for a ram to a dynamometer. The interior of the transducer is vented by means of a ventilating hose, whose opening to the external air is remote from the transducer, in order to avoid measuring errors as a result of temperature fluctuations.

REFERENCES:
patent: 4640295 (1987-02-01), Isaacson
patent: 4873986 (1989-10-01), Wallace
patent: 4944307 (1990-07-01), Hon et al.
patent: 5184619 (1993-02-01), Austin

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