Electronic endoscope having an insertional portion a part of which is a conductive armor
First Claim
Patent Images
1. An electronic endoscope, comprising:
- an insertional part, for inserting into a human body cavity, at least part of whose armor is formed with a conducting member;
an imaging means incorporated in said insertional part and realized with a solid-state imaging device;
a signal transmitting means for transmitting an electric signal resulting from photoelectric conversion performed by said solid-state imaging device; and
a signal processing means for transforming said electric signal transmitted by said signal transmitting means into a video signal;
said conducting member, exposed to said human body cavity, serving as said armor of said insertional part being electrically isolated from said imagingmeans, signal transmitting means, and signal processing means, wherein said conducting member is isolated from ground;
further including shield means for covering outer peripheries of said imaging means and signal transmitting means, wherein said shield means include an armor which is sheathed with an insulating means for insulating said shield means.
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Abstract
An electronic endoscope system comprises an insertional part at least part of whose armor is a conductor, an imaging unit incorporated in the insertional part and realized with a solid-state imaging device, a signal transmitting device for transmitting an electric signal that results from photoelectric conversion performed by the solid-state imaging device, and a signal processor for transforming an electric signal transmitted by the signal transmitting device into a video signal. The conductor serving as the armor of the insertional part is electrically isolated from the imaging unit, signal transmitting device, signal processor, and around.
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Citations
26 Claims
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1. An electronic endoscope, comprising:
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an insertional part, for inserting into a human body cavity, at least part of whose armor is formed with a conducting member; an imaging means incorporated in said insertional part and realized with a solid-state imaging device; a signal transmitting means for transmitting an electric signal resulting from photoelectric conversion performed by said solid-state imaging device; and a signal processing means for transforming said electric signal transmitted by said signal transmitting means into a video signal; said conducting member, exposed to said human body cavity, serving as said armor of said insertional part being electrically isolated from said imagingmeans, signal transmitting means, and signal processing means, wherein said conducting member is isolated from ground; further including shield means for covering outer peripheries of said imaging means and signal transmitting means, wherein said shield means include an armor which is sheathed with an insulating means for insulating said shield means. - View Dependent Claims (4, 5, 6, 7)
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2. An electronic endoscope, comprising:
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an insertional part, for inserting into a human body cavity, whose armor is formed with a conducting member, wherein said conducting member is isolated from ground; an imaging means incorporated in said insertional part and realized with a solid-state imaging device; a signal transmitting means for transmitting an electric signal resulting from photoelectric conversion performed by said imaging means; a signal processing means for transforming said electric signal transmitted by said signal transmitting means into a video signal; a shield means for shielding said imaging means and signal transmitting means; and an insulating means, exposed to said human body cavity, for covering an outer periphery of said shield means. - View Dependent Claims (8, 9, 10, 11)
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3. An electronic endoscope, comprising:
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an insertional part whose armor is at least in part formed with a conducting member which is isolated from ground, for inserting into a human body cavity, composed of a distal rigid unit stowing an imaging means realized with a solid-state imaging device, a proximal rigid unit stowing at least some of electric parts that constitute a signal processor for said imaging means, and a bending section lying between said distal rigid unit and proximal rigid unit and stowing a connection cable that links said imaging means and electric parts; a signal transmitting means for transmitting an electric signal from said at least some electric parts resulting from photoelectric conversion performed by said imaging means; a signal processing means for transforming an electric signal transmitted by said signal transmitting means into a video signal; a shield means for shielding said solid-state imaging device, connection cable, signal processor, and signal transmitting means; and an insulating means, exposed to said human body cavity, for covering an outer periphery of said shield means. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification