Endoscope system having reduced noise emission/permeation

Details Endoscope system having reduced noise emission/permeation Endoscope system having reduced noise emission/permeation

1993-03-02

1996-08-06

Tran, Thai Q.

Television

Special applications

With endoscope

348 75, 128901, 128908, H04N 718, A61B 100

Patent

active

055438318

ABSTRACT:
A medical system having an endoscope probe intubated into a body, a signal processing circuit for processing a signal for the probe and an electric source circuit insulated from a commercial electric source. A part of the signal processing circuit connected to the probe is isolated by an isolation circuit to secure the safety. An impedance element is employed to prevent a malfunction by reducing an emission/permeation of noises. No adverse influence is thereby exerted on outside units.

REFERENCES:
patent: 4615330 (1986-10-01), Nagasaki et al.
patent: 4816909 (1989-03-01), Kimura et al.
patent: 4853772 (1989-08-01), Kikuchi
patent: 4868647 (1989-09-01), Vehara et al.
patent: 4888639 (1989-12-01), Yabe et al.
patent: 4901142 (1990-02-01), Ukuno et al.
patent: 4931867 (1990-06-01), Kikuchi
patent: 4974075 (1990-11-01), Nakajima
patent: 5038780 (1991-08-01), Boetzkes
patent: 5134547 (1992-07-01), Takamizawa
patent: 5174293 (1992-12-01), Hagiwara
patent: 5309918 (1994-05-01), Schraag
Newark Electronics Catalog No. 109, Jan. 1988, pp.294-295.

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