Abstract:
An arthroscopical surgical method using an ultrasonic treatment device for a joint includes: transmitting ultrasonic vibration to a treatment portion of the ultrasonic treatment device, removing an injured region of an articular cartilage so that a subchondral bone is exposed, and forming a cartilage edge which is nearly angled at 90° with the exposed surface of the subchondral bone to form a pool-shaped depression; forming a hole which pierces up to a cancellous bone of the subchondral bone through the depression, and scratching blood vessels in the cancellous bone; causing bleeding from the blood vessels so that blood is retained in the depression via the hole.
Abstract:
An endoscope system includes a convex-portion specifying section that detects a convex portion in a picked-up image of a subject picked up by an image pickup section, and a convex-portion-size calculating section that detects a convex portion in a predetermined size range on the basis of information concerning the convex portion. An illumination section includes a plurality of illumination-light emitting sections that illuminate the subject with lights in bands different from one another from directions different from one another. The plurality of illumination-light emitting sections are provided on a distal end side inner circumferential surface of a cylindrical cap attached to the distal end of an insertion section of an endoscope to specify an image pickup range of the image pickup section.
Abstract:
The invention provides a fluoroscopy apparatus including an image-capturing device that acquires a fluorescence image of a subject; a sensitivity adjusting portion that sets a sensitivity of the image-capturing device to fluorescence on the basis of a gradation value of the fluorescence image; a notifying portion that extracts a lesion part from the fluorescence image acquired by the image-capturing device with the sensitivity set by the sensitivity adjusting portion and presents it to an operator; and a display switching portion that displays the fluorescence image on a display unit when the sensitivity in the image-capturing device is equal to or less than a predetermined threshold and that presents information showing the existence of the lesion part on the notifying portion when the sensitivity is greater than the predetermined threshold.
Abstract:
Provided is a fluoroscopy apparatus including a fluorescence-image generating portion that generates a fluorescence image; an identifying portion that identifies a position of a high-luminance region in the fluorescence image; a storage portion that stores the position of the high-luminance region; a detecting portion that detects an amount of change in a physical quantity, which can possibly act as a cause of changes in a property of the high-luminance region, starting from a time at which the position of the high-luminance region is identified by the identifying portion; a confidence-level calculating portion that calculates a confidence level of the property of the high-luminance region based on the detected amount of change; and a display-image generating portion that generates a display image in which the display mode at the position of the high-luminance region is set in accordance with the confidence level.
Abstract:
An endoscope system includes a processor configured to generate a clock at predetermined timing, a light source apparatus configured to irradiate white light and excitation light in a time division manner in synchronization with the clock, and an endoscope configured to perform image pickup based on irradiation timing of the light source apparatus. The processor generates a first white light image at a first clock, generates a first fluorescent image at a second clock, generates a second white light image at a third clock, and generates a third white light image at a fourth clock and superimposes the second white light image and the first fluorescent image at the fourth clock and superimposes the third white light image and the first fluorescent image at a fifth clock.
Abstract:
An endoscope system includes: an illumination unit configured to irradiate a visual field area with illumination light that produces return light from a specific substance; a sensor unit having a two-dimensional surface on which a plurality of pixels is arranged for receiving the return light from the visual field area and photoelectrically converting the return light to generate electrical signals; a reading unit configured to read out the electrical signals per a specified frame cycle; a reset pulse generation unit configured to generate reset pulses for releasing electric charges accumulated in the plurality of pixels; a reset pulse controller configured to adjust timing of generating the reset pulses such that a plurality of frame cycles is included in a period between generation of two consecutive reset pulses; and an illumination controller configured to cause the illumination unit to emit the illumination light in each of the plurality of frame cycles.
Abstract:
Fluorescence generated at a lesion is distinguished from fluorescence generated at portions other than the lesion, and thus, observation is performed by using only the fluorescence generated at the lesion. Provided is a fluorescence observation apparatus including a light radiating portion that radiates excitation light onto an examination subject; a fluorescence-distribution acquiring portion that acquires an intensity distribution of fluorescence generated at the examination subject due to irradiation with the excitation light from the light radiating portion; and a non-target-region excluding portion that, in the fluorescence-intensity distribution acquired by the fluorescence-distribution acquiring portion, excludes regions in which a spectrum in a specific wavelength band has changed due to a specific biological component whose concentration in a lesion is lower than in other portions.
Abstract:
Provided is a fluorescence observation apparatus including: a fluorescence image acquisition section and a reference image acquisition section that acquire a fluorescence image and a reference image of a subject, respectively; a division image generation section that generates a division image by dividing an image based on the fluorescence image by an image based on the reference image; a display section that displays a corrected fluorescence image based on the division image; a correction processing section that applies correction processing to at least one of the reference image and the fluorescence image and/or to the division image prior to the generation of the division image or prior to the display of the corrected fluorescence image; an observation condition determination section that determines observation conditions of the subject; and a correction condition setting section that sets parameters regarding the correction processing according to the observation conditions.