Fetal heart detector

Details Fetal heart detector Fetal heart detector

1994-11-07

1996-04-23

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

055094163

ABSTRACT:
A self contained hand held fetal detector comprises an ultrasonic receiver and transmitter (23). Selectively actuable ultrasonic receiving and transmitting circuits (25,21) are connected to the ultrasonic receiver and transmitter (23) with a controller (24) for actuating either the ultrasonic receiving circuit (25) or the ultrasonic transmitting circuit and a loudspeaker (29) connected to the ultrasonic receiving circuit (25) for generating an audio output signal. The detector comprises a single unit (13) and the controller (24) modifies at least one of the transmitted and received signals, to prevent interference in the received ultrasound.

REFERENCES:
patent: 3780725 (1973-12-01), Goldberg
patent: 4226229 (1980-10-01), Eckhart et al.
patent: 4986276 (1991-01-01), Wright
patent: 5309915 (1994-05-01), Ember

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