Fujifilm Corporation

Takashi Yashiro

Issei Suzuki

Kazuaki Takahashi

Shuichi Ishii

Ryou Kitano

Masahiro Kubo

Makoto Sugizaki

Ryo Kitano

Takeichi Tatsuta

Masaya Inoue

Goki Yamamoto

Kazushige Yamamoto

An endoscope includes an image pick-up-device at a distal-end-part of an insertion-part. The image pick-up-device includes a lens barrel holding an imaging lens; an image-sensor having a rectangular shape as an outer peripheral shape of an image reception surface on which imaging light incident via the imaging lens; and a sensor holder holding the image-sensor in a state where the image reception surface intersects a longitudinal direction of the insertion-part. The sensor holder has three independent wall-parts respectively covering three side surfaces of the image-sensor, and on an XY plane orthogonal to the longitudinal direction of the insertion-part, a gap length, in an X-axis direction on the plane between adjacent wall-parts of the three wall-parts and a gap length, in Y-axis direction, between the adjacent wall-parts are equal to each other. Additionally, the height of each of the three wall-parts is 1.5 times to 3 times the gap length.

Endoscope with holding member having multiple independent wall parts

An endoscope includes an image pick-up device at a distal end part of an insertion part capable of being inserted into a body cavity. The image pick-up device includes a lens barrel that holds an imaging lens; an image sensor having a rectangular shape as an outer peripheral shape of the image reception surface on which imaging light incident via the imaging lens; and a sensor holder that holds the image sensor in a state where the image reception surface intersects a longitudinal direction of the insertion part. The sensor holder has a fitting part fitted to the lens barrel, and an extending wall part that extends in the longitudinal direction of the insertion part from the fitting part to cover at least a portion of the outer peripheral surface of the image sensor, and the fitting part and the extending wall part are integrally configured.

Endoscope

An endoscope system includes: an endoscope including a side-viewing observation unit that includes a field of view in a lateral direction of an insertion part to be inserted into an object to be observed and a second protruding portion that protrudes from the insertion part and forms a blind spot in the field of view of the side-viewing observation unit; an image acquisition unit that acquires a side-viewing observation image by using the side-viewing observation unit; a monitor that displays the side-viewing observation image; and a display control section that allows at least a part of the blind spot of the side-viewing observation image in which the second protruding portion is shown up not to be displayed, and displays the side-viewing observation image on the monitor.

Endoscope system and method of driving endoscope system

An endoscope includes in a tip portion of an insertion unit: an image sensor having plural terminals including a video terminal which outputs a video signal; and a tip potion of a treatment tool channel which extends in a longitudinal direction of the insertion unit, and a distance of the video terminal is longest among distances of the respective terminals from a center of the treatment tool channel in a plane that is perpendicular to the longitudinal axis.

An endoscope includes, in a tip portion of an insertion unit: an image sensor having a photodetecting surface as defined herein; an imaging optical system as defined herein; a holding frame as defined herein; and a tip portion of a treatment tool channel as defined herein, and, in a cross section taken perpendicularly to the optical axis, a thickness, on a first axis that intersects the optical axis and a center of the treatment tool channel, of frame wall portions, located on two respective sides of the optical axis and intersecting the first axis, of at least a portion of the holding frame is smaller than a thickness, on a second axis that is perpendicular to the optical axis and the first axis, of frame wall portions, located on two respective sides of the optical axis and intersecting the second axis, of the at least portion of the holding frame.

Endoscope equipped with image sensor at tip portion

An endoscope includes an image sensor that is provided at a front end portion of an insertion portion of the endoscope so that an image receiving surface of the image sensor is disposed to cross a longitudinal axis of the insertion portion; a sensor holder that surrounds an outer circumference of the image sensor and holds the image sensor; and a circuit board including a sensor connection portion and an electric wire connection portion as defined herein; the image sensor is held by the sensor holder as defined herein; the sensor connection portion and the electric wire connection portion are connected to each other as defined herein; and an outside edge of a connection site between the sensor connection portion and the electric wire connection portion is located as defined herein.

An electronic endoscope has an insert section to be introduced into a human body cavity. A distal portion of the insert section contains a CCD and a printed circuit board to which the CCD is bonded. In the insert section, a cable bundle being a bundle of coaxial cables extends. Each coaxial cable consists of a signal line, insulation surrounding the signal line, a braided wire surrounding the insulation, and an insulating jacket. The cylindrical braided wire is stranded into a single line, and is soldered as a ground line to a ground terminal of the printed circuit board. The signal line is pulled out of the coaxial cable with a length longer than the ground line. The signal line is soldered to an input/output terminal of the printed circuit board with a larger sag than the ground line.

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Kanagawa, Japan

Takashi Yashiro