Olympus Corporation

Olympus Optical Company, Ltd.

Olympus Medical Systems Corporation

Atsushi Okawa

Tianyu Xie

Yasushige Ishihara

Akihiro Horii

Toshiaki Watanabe

Tadashi Hirata

Hiroki Hibino

Katsuichi Imaizumi

Kazunari Tokuda

Hiroyuki Sangu

Hiroshi Tosaka

Akio Uchiyama

Hitoshi Mizuno

Kenji Yoshino

Sakae Takehana

Yoshinao Oaki

Mamoru Kaneko

Takefumi Uesugi

Isami Hirao

Toshimasa Kawai

Takeshi Ozawa

Daisuke Akiyama

Hitoshi Ueno

Masahiro Ohno

Jun Hiroya

Eiji Yasuda

Mitsuhiro Hara

Hidemichi Aoki

To provide an endoscope system that includes a light source, an insertion part to be inserted into a living organism for guiding a illumination light emitted from the light source and a light returned from the living organism, a deflection optical system for outwardly directing the illumination light in a radius direction of the insertion part and for introducing a light inwardly returned from the living organism in the radius direction into the insertion part, a part for capturing the returned light, a part for detecting an insertion speed of the insertion part, a part for adjusting a frame rate for the image capturing of the image capturing part based on the detected insertion speed, an image forming part for arranging acquired images at a pitch based on the insertion speed to form an image of the inside of the living organism, and a part for displaying the formed image.

Endoscope system and endoscopic observation method

A lesion extracting device includes a light source for emitting an excitation light toward a subject body, a control unit for changing an amount of the excitation light, a light irradiating and receiving portion for irradiating the excitation light to the subject body and receiving fluorescence generated from the subject body, a distance holding member for holding a distance between the subject body and the light irradiating and receiving portion at a predetermined value, a measuring unit for measuring the intensity of the fluorescence received by the light irradiating and receiving portion, and an extracting unit for extracting a lesion part of the subject body based on relationships between measured values of changes in the fluorescence intensity with respect to changes in the amount of the excitation light and information regarding the changes in the amount of the excitation light, the information being obtained from the control unit.

Lesion extracting device and lesion extracting method

A fluorescent agent accumulation concentration measuring apparatus is configured to include a single-wavelength LED to radiate excitation light to a test bottle loaded in the inside, a barrier filter to transmit only fluorescence from the test bottle, a photoreceptor to receive the fluorescence through the barrier filter and output an electric signal, a detection processing circuit to conduct signal processing of the electric signal from the photoreceptor and detect the fluorescence intensity, and an operation circuitto compare the detection result from the detection processing circuit with an analytical pattern stored in a pattern storage portion and calculate the peak time of the accumulation concentration in a tissue of a sample in the test bottle.

Fluorescent agent concentration measuring apparatus, dose control apparatus, administration system, fluorescent agent concentration measuring method, and dose control method

An optical imaging device of the present invention comprises: a light source device; a light guide and illumination lens, provided in an insertion section that can be inserted into a body cavity, for constituting an illumination light path for guiding an illumination light from the light source device to a subject; an objective lens for receiving return lights from the subject; an image capturing section for acquiring a visible light band image from the return light; an excitation light cut filter and image capturing section for acquiring a fluorescent image from the return lights; and an illumination light filter, provided on the illumination light path, for decreasing light in a band overlapping with the band of light of which image is captured by the image capturing section from the illumination light incident on.

Optical imaging device having illumination light filter section

A lesion extracting device having a control unit for changing an amount of the excitation light emitted toward a subject body, a measuring unit for measuring a change in the intensity of fluorescence generated from the subject body with respect to a change in the amount of the excitation light, and an extracting unit for calculating a ratio of the change in the intensity of fluorescence on the basis of a ratio of the change in the amount of the excitation light to the change in the intensity of fluorescence and for extracting a lesion part of the subject body on the basis of the ratio of the changes in the amount of the excitation light to the ratio of the changes in the intensity of fluorescence.

The invention includes an insertion portion, one end of which is inserted inside a lumen of a subject; an image-acquisition unit for acquiring an image of an interior wall in the lumen as a substantially circular or substantially ring-shaped interior wall image; a transformation processing unit for transforming, in the interior wall image, at least substantially ring-shaped images concerning the interior wall, whose distance from the one end is uniform, to substantially straight-line-shaped or substantially band-shaped images; a distance-measuring unit for measuring a distance moved by the insertion portion relative to the subject; and an image synthesizing unit for joining the transformed images on the basis of the distance moved measured by the distance-measuring unit.

Endoscope apparatus

A control portion of an optical image pickup apparatus includes a scan driver, a lock-in amplifier, and an A/D converter. The scan driver outputs a predetermined drive signal to a Y-scanning mirror and an X-scanning mirror and scans the Y-scanning mirror and the X-scanning mirror. The lock-in amplifier detects a signal level Vout of a frequency component of the drive signal of the scan driver among signals detected by a detector portion. The A/D converter converts a signal detected by a detector portion and a signal level of the detected signal of a frequency component of a drive signal detected by the lock-in amplifier to digital signals and outputs the digital signals to an image processor. Thus, mirror scan operations of the scanning mirrors can be securely detected.

Optical image pickup apparatus for imaging living body tissue

An optical probe system comprises an optical probe that is inserted into a body cavity, a light source that generates light which is irradiated to an object, and a high-magnification observation unit included in the distal section of the optical probe. The optical probe system further comprises: an image digitization unit that digitizes a luminance signal produced by the high-magnification observation unit; an image parameter sampling unit that samples an image parameter from an image; an optimization parameter calculation unit that calculates an optimization parameter on the basis of the image parameter; an image optimization unit that optimizes an image according to the optimization parameter; an image display device on which an optimized image is displayed; and a digital image preservation unit in which a digitized image is preserved.

Optical probe system

An identification circuit () recognizes optical probes (A,B) of different scanning types that are connected to a light source unit () and a control device (), the frequency of the drive signal of a control circuit () for driving a scanner inside the optical probe is varied by this recognition signal, corresponding drive signals are applied to the optical probes connected, the scanner of each probe is scanned, and two-dimensional optical information is imaged by an imaging device () and displayed on a monitor ().

Optical scanning probe system

An attachmentthat is proximal to an optical probeincludes probe information holding meansthat holds probe information such as a scanning technique and an optical path length or the like. When the optical probeis connected (attached) to an observing device, probe information detecting means included in the observing deviceautomatically detects the probe information held in the optical probe. Based on the detected probe information, a scanning technique and an optical path length of reference light are set to values suitable to an actually connected optical probe

Optical imaging system and optical imaging detection method

A light scanning device has a tip structure which includes a light scanning part connected to a light source, and which is insertable into a body cavity and is formed so as to be water-tight. A controlling part controls the light scan through the tip structure, and the tip structure and the controlling part are also connected to each other in a water-tight manner by a slender tube through which a plurality of electrical cables pass. An electric connector is fixed with the proximal end portion of the tube in a water-tight manner, and is electrically connectable so as to be water-tight with and removable from this controlling part.

Growing community of inventors

Hachioji, Japan

Atsushi Okawa