Sony Olympus Medical Solutions Inc.

Kabushiki Kaisha Tetrak

Waseda University

Vcell Therapeutics, Inc.

Koji Kojima

Charles Alfred Vacanti

Taihei Michihata

Mitsuo Umezu

Kiyotaka Iwasaki

Kiminori Sugisaki

Yoichiro Sakanoue

Kiyoshi Kajiwara

Kiyosi Kajiwara

A medical control device includes: a captured image acquisition unit configured to acquire a captured image generated by an image sensor capturing a subject image introduced by an endoscope; a luminance calculation unit configured to calculate a luminance level of the subject image included in the captured image; and a dimming controller configured to control a light amount of irradiation light onto a subject and an electronic shutter of the image sensor based on the luminance level, and execute first dimming control of narrowing the electronic shutter before reducing the light amount as the luminance level increases.

Medical control device and medical observation system

A medical observation system according to the present invention includes: an observation optical system configured to guide an observation light from a subject; an imaging unit configured to receive an observation light from the observation optical system and generate an image signal; and an image processing unit configured to apply signal processing to the image signal generated by the imaging unit, wherein the image processing unit includes a filter detection unit configured to detect, based on a signal value of a color which includes a wavelength band of a specific light in a preset wavelength band of the image signal, whether or not an observation-side filter for cutting the specific light is disposed on an optical path of the observation light.

Medical observation system

A light source control device includes a light source controller configured to: cause a first light source to emit light in a visible wavelength band in a first entire line exposure period, which is an entire line exposure period in which all horizontal lines in an effective pixel area are simultaneously exposed; cause a second light source to emit excitation light in a second entire line exposure period, which is different from the first entire line exposure period; and cause the excitation light to be emitted in an excitation light emission period including the second entire line exposure period and a period, which is adjacent to the second entire line exposure period and is at least a part of a readout period during which charges accumulated in the plurality of pixels are read out, when controlling an operation of the second light source.

Light source control device and medical observation system

A light source apparatus, a medical observation system, an adjustment apparatus, an illumination method, an adjustment method, and a program that enable performing light modulation on a semiconductor light source through PWM control and current control without the necessary of a complicated work are provided. A light source apparatusincludes a first light source sectionthat emits a first light, a second light source sectionthat emits a second light, and a light source control sectionthat controls each of a pulse emission time and a pulse emission intensity of the first light and performs a control that changes one of a pulse emission time and a pulse emission intensity of the second light with the other one of the pulse emission time and the pulse emission intensity of the second light fixed.

Light source apparatus, medical observation system, adjustment apparatus, illumination method, adjustment method, and program

A medical control device includes: a driving mode switch configured to switch a driving mode of a rolling shutter type image sensor in which a plurality of pixels are two-dimensionally arrayed in units of horizontal lines; and a dimming controller configured to control a light emitting element configured to emit light according to a supplied current, and switch control of the light emitting element according to the driving mode.

A light source device includes: light sources; a detector configured to detect light amounts; and a processor configured to: control the light sources to emit light beams by applying a pulse current with a pulse width larger than a predetermined pulse width to the light sources before the processor makes a shift to a strobe observation mode; set a pulse current value at which a ratio of the light amounts of the light beams emitted by the plurality of light sources becomes a predetermined ratio for the plurality of light sources based on a detection result detected by the detector under a state where the pulse current with the pulse width larger than the predetermined pulse width is applied to the plurality of light sources; and make the shift to the strobe observation mode while maintaining the pulse current value for realizing the predetermined ratio.

Light source device, medical observation system, illumination method, and computer readable recording medium

A medical signal processing device includes: an acquisition unit is configured to acquire a first image signal acquired by emission of first light onto an object, and a second image signal acquired by emission of second light onto the object, the first light being in a wavelength band including visible light, and the second light exciting a fluorescent substance included in the object; a detection unit configured to detect each of a signal level of the visible light included in the first image signal and a signal level of fluorescence included in the second image signal; and a calculation unit configured to calculate a correction coefficient to correct the signal level of the fluorescence by using a result of the detection by the detection unit.

Medical signal processing device, cap member, and medical signal processing method

The technology described herein relates to methods, assays, and compositions relating to causing a cell to assume a more pluripotent state, e.g. without introducing foreign genetic material.

Methods relating to pluripotent cells

A medical light source apparatus includes: a first light source configured to emit light in a first wavelength range; a second light source configured to emit light in a second wavelength range different from the first wavelength range; and a light source controller configured to control the first light source and the second light source to perform pulse light emission in a state in which the pulse light emission of the second light source is less frequent than the pulse light emission of the first light source.

Medical light source apparatus and medical observation system

A system () for forming and maintaining a biological tissue by which a biological tissue can be artificially formed by culturing cells, which comprises a pulse pump (), a circulation pathway () having such a circuit structure as allowing a liquid cell culture medium discharged from the pulse pump () to return into the pulse pump (), and a cell culture section (A) and a gas exchange section (B) provided along the circulation pathway (). The cell culture section (A) holds a cell holder (H) in such a manner to form a first channel wherein the liquid cell culture medium flowing in the circulation pathway () passes through the cell holder (H) and returns into the circulation pathway () and a second channel wherein the liquid cell culture medium flowing in the circulation pathway () passes outside the cell holder (H) and returns into the circulation pathway thereby bringing about a difference in pressure between the liquid cell culture medium passing through the respective channels.

System for forming and maintaining biological tissue

An inverter-type resistance welding machine includes a keyboard for inputting desired welding current command data corresponding to commanded values, a display unit for displaying, in the form of a numerical table or graph, the welding current command pattern data inputted by the keyboard, a memory for storing a plurality of the welding current command patterns set by the keyboard and from which these patterns are read out in response to a selection command from the keyboard to serve as a control command of the inverter, and acceptability decision means which successively accepts detected welding current at the time of welding for making a comparison with the reference welding current command pattern over a full range of values, checking correlation between the detected welding current and the reference welding current command pattern and determining whether the detected welding current lies within a predetermined tolerance.

Controller for resistance welding machine

Items constituting a resistance welding schedule are set to desired numerical values by pressing three kinds of keys, namely a shift key for designating one item after another, and increment and decrement keys for setting or changing a numerical value corresponding to each designated item. Each item is displayed in an individual display section of a display unit, with the display sections being made to blink sequentially as each corresponding item is designated. The numerical values are displayed directly item by item and are set sequentially as the respective items of the schedule are designated.

Growing community of inventors

Tokyo, Japan

Koji Kojima