Transducer

Details Transducer Transducer

1988-07-20

1990-10-30

Jaworski, Francis

Surgery

Truss

Pad

128775, A61B 802

Patent

active

049661523

ABSTRACT:
A transducer for extra-uterine monitoring of fetal heart rate and labor activity comprises a casing the lower portion of which carries ultrasound crystals. Additional crystals are carried by a movable base plate which is connected with tension-measuring means.

REFERENCES:
patent: 3379901 (1968-04-01), Richards
patent: 3587561 (1971-06-01), Zicdonis
patent: 3824988 (1974-07-01), Soldner et al.
patent: 3859984 (1975-01-01), Langley
patent: 4640295 (1987-02-01), Isaacson
patent: 4781200 (1988-11-01), Baker

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