Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent endoscope inspecting video system, in which the size, cost, weight and complexity of a camera are reduced.SOLUTION: A fluorescent endoscope inspection video system 50 comprises a multimode light source 52 for generating a beam to form a color image and a fluorescent image. The beam from the light source 52 is fed to a lighting guide 54 of an endoscope 60, and then illuminates a tissue sample 58 to be imaged. This system further comprises a multi-mode camera 100. This multi-mode camera 100 is arranged at an insertion terminal of the endoscope 60. A filter is disposed at the leading end portion of the multi-mode camera 100 so as to form fluorescent and white light images of the tissue 58.
Abstract:
PROBLEM TO BE SOLVED: To visualize a fluid flow through vessels having a contrast component flowing therethrough.SOLUTION: A method for visualizing a fluid flow through vessels having a contrast component flowing therethrough includes the steps of: selecting from a sequence of angiographic images a subsequence of angiographic images; reading a plurality of dynamic parameters, the dynamic parameters controlling display of the angiographic images; serially displaying the subsequence repetitively in accordance with the dynamic parameters; and providing an interface allowing a user to dynamically update the dynamic parameters while displaying the subsequence.
Abstract:
PROBLEM TO BE SOLVED: To provide new compositions for nerve imaging, which are used to definitely distinguish between a nerve tissue and non-neural tissues, such as a prostate tissue, that exist around the nerve tissue, during surgery or the like.SOLUTION: A composition comprises: a fluorescent dye; and a neurotropic herpes varicellae unable to replicate in nerve cells, wherein the fluorescent dye is bound to the virus to form a complex that is capable of penetrating nerve cells. Preferably, the dye is indocyanine green, infracyanine green, green fluorescent dye, fluorescein isothiocyanate, rhodamine, phycoerythrin, phycocyanin, allophycocyanin, o-phthaldehyde, fluorescamine, Rose Bengal, trypan blue, fluoro-gold, 3-indocyanine-green-acyl-1, 3-thiazolidine-thione, or green fluorescent protein and other fluorescent proteins. More preferably, the dye is indocyanine green.
Abstract:
PROBLEM TO BE SOLVED: To visualize fluid flow through vessels having a visualizing composition flowing therethrough.SOLUTION: This invention relates to a method for visualizing fluid flow through vessels having the visualizing composition flowing therethrough, the method comprising the steps of: selecting from a sequence of angiographic images a subsequence of angiographic images, reading a plurality of dynamic parameters, the dynamic parameters for controlling display of the angiographic images, serially displaying the subsequence repetitively in accordance with the dynamic parameters, and providing an interface for a user dynamically update of the dynamic parameters while displaying the subsequence.
Abstract:
PROBLEM TO BE SOLVED: To provide an imaging system for acquiring NIR and full-color images.SOLUTION: This imaging system for acquisition of NIR and full-color images includes a light source providing visible light and NIR light to an area under observation, such as living tissue, one or more image sensors configured to separately detect blue reflectance light, green reflectance light, and combined red reflectance light/detected NIR light returned from the area under observation. A controller in signal communication with the light source and the camera is configured to control the light source to continuously illuminate the area under observation with temporally continuous blue/green illumination light and with red illumination light and NIR excitation light. At least one of the red illumination light and NIR excitation light is switched on and off periodically in synchronism with the acquisition of red and NIR light images in the camera.
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescence endoscopy video system.SOLUTION: A fluorescence endoscopy video system 50 includes a multimode light source 52 that produces light for a color imaging and fluorescence imaging modes. A system 50 includes a multimode camera 100 for color imaging and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera 100. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera 100 are processed in a processor/controller 64 where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer.
Abstract:
An optical system for use with a multi-channel wide field imaging system, the optical system including an objective lens, a dichroic element to split light into a first wavelength range and a second wavelength range, the dichroic element positioned to receive near parallel chief rays from the objective lens, a first channel lens system to receive light of the first wavelength range from the dichroic element; and a second channel lens system to receive light of the second wavelength range from the dichroic element.
Abstract:
An imaging device may include a first illumination port to output first light having a first illumination distribution at a target to illuminate the target, a second illumination port to output second light having a second illumination distribution at the target to illuminate the target, the second illumination distribution being substantially similar to the first illumination distribution at the target, the second illumination port being spaced apart from the first illumination port, the first and second illumination distributions being simultaneously provided to the target and overlapping at the target. The illumination from the first and second ports may be matched to a same aspect ratio and field of view coverage as the imaging field of view. Fig 7. WO 2017/079844 PCT/CA2016/051315 (0D Li~m
Abstract:
The design is the visual features of a device for illumination and imaging of a target shown in solid lines in the drawings, whether those features are features of one of shape, configuration, ornament or pattern or are a combination of any of these features. The broken lines in the figures represent portions of the article that form no part of the claimed design. Figure 1 is a perspective view of a device for illumination and imaging of a target; Figure 2 is a front view of the device for illumination and imaging of a target of Figure 1; Figure 3 is a rear view of the device for illumination and imaging of a target of Figure 1; Figure 4 is a left-side view of the device for illumination and imaging of a target of Figure 1; Figure 5 is a right side view of the device for illumination and imaging of a target of Figure 1; Figure 6 is a top view of the device for illumination and imaging of a target of Figure 1; and Figure 7 is a bottom view of the device for illumination and imaging of a target of Figure 1.
Abstract:
Methods and systems are disclosed for extracting an image of a target fluorophore in a biological material, which involve inducing both autofluorescence of the biological material and fluorescence of the fluorophore, acquiring an image arising from both the autofluorescence of the biological material and the fluorophore, and an image arising only from the autofluorescence, subtracting the two images to produce an image representing only the fluorophore, wherein relative intensities of the excitation light used to induce the autofluorescence and the fluorescence are modulated prior to acquiring the images.