Endoscope with signal transmission system and method of operatin

Details Endoscope with signal transmission system and method of operatin Endoscope with signal transmission system and method of operatin

1982-09-28

1985-05-28

Cohen, Lee S.

Surgery

Truss

Pad

128 4, A61B 1739

Patent

active

045193916

ABSTRACT:
A signal transmission system for use in an endoscope includes a solid state image sensor for picking up an image of a part of the inside of a cavity of a living body to produce a video signal indicative of the image, a frequency modulator for frequency modulating a carrier frequency with the video signal to produce a frequency modulated signal, video circuitry for receiving the modulated signal to visualize the video signal on a video display, and a transmission circuit for transmitting the modulated signal from the modulator to the video circuitry. A frequency band of the frequency modulated signal is selected outside a frequency band of a noise source including an electrical instrument, such as an electrical scalpel.

REFERENCES:
patent: 3499108 (1970-03-01), Simon
patent: 3942530 (1976-03-01), Northeved

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