Olympus Corporation

Olympus Optical Company, Ltd.

Olympus Medical Systems Corporation

Yasukazu Kogen

Tadashi Hirata

Katsuichi Imaizumi

Takefumi Uesugi

Mamoru Kaneko

Nobuyuki Doguchi

Isami Hirao

Makoto Tomioka

Takeshi Ozawa

Hitoshi Ueno

Masahiro Kawauchi

Atsushi Shimada

Sakae Takehana

Tomoya Takahashi

Koji Omori

Masanobu Koitabashi

Takahiro Masaki

Mitsuhiro Ito

Mutsumi Oshima

Mutsumi Ohshima

Sakae Takahana

A light source apparatus for an endoscope, which has a lamp, a power source, a light adjustment control module that controls power to be supplied to the lamp within a range not more than an upper limit power based on a brightness instruction signal, and a continuous lighting sensing module that measures a continuous lighting time period from time when the lamp shifts from being extinguished to being lighted, compares the continuous lighting time period with a predetermined upper limit time period, and initializes the continuous lighting time period while the lamp is extinguished, wherein the upper limit power is set to a first upper limit power when the continuous lighting time period has not reached the upper limit time period, and changed to a second upper limit power lower than the first upper limit power in a stepwise manner when the upper limit time period has not been reached.

Light source apparatus for endoscope and control method for light source apparatus for endoscope

A light source device for an endoscope, characterized by having a light source for supplying illuminating light to an object, endoscope connection unit optically connected to an endoscope that has discrimination information for discriminating the kind of endoscope, discrimination unit for discriminating the endoscope based on the discrimination information of the endoscope connected to the endoscope connection unit, change unit for the changing illumination condition of the illuminating light, and control unit for controlling the change unit based on the result of discrimination by the discrimination unit.

Controlling light source with endoscope type

A socket sectionfor providing a first light guideis supported movably in an endoscope main body, and a plug sectionfor fixing a second light guideis disposed in an endoscope insertion section. The socket sectionis configured to move freely in an insertion direction of the endoscope insertion sectionand to a direction orthogonal with respect to the insertion direction. Furthermore, an attachment-detachment-detecting switchis disposed in the endoscope main bodyso as to detect that the endoscope insertion sectionhas been separated from the endoscope main bodybefore the plug sectionis freely detached from the socket section. By this configuration, it is possible to attach the endoscope insertion section from the endoscope main body and detach them easily and reliably, in particular, to reduce loss of light caused by the attachment and the detachment.

Endoscope and endoscope system

An imaging system for use with an endoscope, including a light source which emits white light and excitation light which will produce a fluorescence response by an object under inspection, an imaging camera including separate paths for processing images produced by white light and excitation light, a selection device that causes the imaging device to operate in a white light mode or an excitation light mode, and a protective device that prevents damage to high-sensitivity imaging components from exposure to excessive light input. Fluorescent image data are separated into at least red and green color bands which are separately processed to produced a video display in which normal tissue is displayed in predetermined specific color, and abnormal tissue in one or more distinctly different colors. In one embodiment, an image color interpretation guide is provided in the form of multiple color bars which are superimposed on a single video display device with the image display. of different kinds. In another embodiment, color control is provided by adjusting the amplification of the imaging components for each of the color bands while viewing tissue known to be normal using a recursive algorithm until the ratio of the maximum values of the color separation signals fall within a predetermined range. The high-sensitivity imaging components are protected by controlling impingement of light on the imagining components, selectively controlling emission of white and excitation light from the light source, and controlling the power source for the imaging components.

Fluorescent imaging device

A fluorescent imaging device to prevent the breakdown of a fluorescent image high-sensitivity imaging apparatus has a light source for endoscope use which selectively switches between an excitation light and a white light. This introduces a light into a light guide of an endoscope and such light is emitted onto an object. A fluorescent image high-sensitivity imaging device images the fluorescences obtained by excitation with the excitation light which is emitted onto the object. A white light imaging device images a white light image obtained from the white light which is emitted onto the object. A switch inputs a power source onto the fluorescent image high-sensitivity imaging apparatus and there is a mechanism to prevent overprint on an image plane of the fluorescent image high-sensitivity imaging apparatus which is in the imaging condition with the power source inputted. A fluorescent observation image generating device generates a fluorescent observation image signal for fluorescent observation use, and outputted from the fluorescent image high-sensitivity imaging measure of the imaging part is in electric signal from; which a white light observation image signal used for white light observation is derived.

Fluorescent diagnostic system and method providing color discrimination enhancement

At the tip of an insertion part of an endoscope, an object window for regular observation use is positioned at almost the center, directly connected to which, said object window for fluorescent observation use is provided, and at the both sides of the object window for regular observation use and the object window for fluorescent observation use, two illumination windows are provided. A forceps hole which is an opening part at the tip side of a forceps channel which is inserted into the insertion part is provided at the lower right of the object window for regular observation use, and a treatment tool which is inserted through a forceps insertion channel is to be extruded from this forceps hole. By this way, on monitor images at both of white light observation and fluorescent observation, the treatment tool such as a forceps or the like is designated at almost the same position to improve the manipulation capability.

Endoscopes and endoscope devices which image regular observation images and fluorescent images as well as which provide easier operation of treatment tools

Growing community of inventors

Tokyo, Japan

Yasukazu Kogen