Ultrasonic imaging device with noise preventing structure

Details Ultrasonic imaging device with noise preventing structure Ultrasonic imaging device with noise preventing structure

1991-04-16

1993-09-14

Cohen, Lee S.

Surgery

Truss

Pad

12866206, A61B 814, A61B 812

Patent

active

052439895

ABSTRACT:
An ultrasonic imaging and diagnosing device comprises a section to be inserted into the body cavity, an ultrasonic wave transmitting and receiving section located at the front end of the inserting section, a conductive hollow shaft arranged in the inserting section and connected to the ultrasonic wave transmitting and receiving section, a scanning device for scanning the body cavity while changing the direction of ultrasonic wave transmitted from the ultrasonic wave transmitting and receiving section, a circuit for receiving electric signals applied from the ultrasonic wave transmitting and receiving section, and a signal cable passed through the hollow shaft to connect the ultrasonic wave transmitting and receiving section to the signal receiving circuit. Both of an outer conductive line of the signal cable and the hollow shaft are connected to the common of the signal receiving circuit to prevent noises from entering into the signal cable.

REFERENCES:
patent: 4245649 (1981-01-01), Schmidt-Andersen
patent: 4517976 (1985-05-01), Murakoshi et al.
patent: 4519391 (1985-05-01), Murakoshi
patent: 4674515 (1987-06-01), Andou et al.
patent: 4762002 (1988-08-01), Adams
patent: 5095911 (1992-03-01), Pomeranz

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