Abstract: An OCI medical device includes a coherent light source, a light sensor, a first processing unit adapted to calculate OCI Data from the light sensor, a control unit which allows taking or loading of at least one Reference OCI Value, a second processing unit adapted to calculate the Intra-Individual Relative Assessment of the OCI Data of an Imaging Zone and the at least one OCI Reference Value, and display means adapted to show at least one Relative OCI Value. Uses and a method for assessing the blood flow of a body region use OCI imaging and include an Intra-Individual Relative Assessment between OCI Data of the Imaging Zone and at least one Reference OCI Value.

Abstract: A perfusion assessment multi-modality optical medical device comprising ? a white light image sensor (320) and optical system configured to image a body area of interest (130, 340), a coherent light source (330) for illuminating said body area of interest with wavelength of 760-810 nm, an optical coherence imaging (OCI) image sensor (310) detecting the fluctuations of the backscattered light (302) near the illumination wavelength from at least part of said illuminated body area of interest (340), a fluorescence image sensor (315) to detect the fluorescence signal at higher wavelength than the illumination wavelength from at least part of said illuminated body area of interest (340), a screen (115, 210) to show the results from the modalities, all previous items being included in a single movable unit (200) which furthermore comprises a processing unit (105, 110) to calculate perfusion map from the OCI image sensor (310) using LDI or LSI algorithms, wherein said white light image sensor (320), said OCI imag

Abstract: A perfusion assessment multi-modality optical medical device comprising a white light image sensor (320) and optical system configured to image a body area of interest (130, 340), a coherent light source (330) for illuminating said body area of interest 110 with wavelength of 760-810 nm, an optical coherence imaging (OCI) image sensor (310) detecting the fluctuations of the backscattered light (302) near the illumination wavelength from at least part of said illuminated body area of interest (340), a fluorescence image sensor (315) to detect the fluorescence signal at higher wavelength than the illumination wavelength from at least part of said illuminated body area of interest (340), a screen (115, 210) to show the results from the modalities, all previous items being included in a single movable unit (200) which furthermore comprises a processing unit (105, 110) to calculate perfusion map from the OCI image sensor (310) using LDI or LSI algorithms, wherein said white light image sensor (320), said OCI image

Abstract: An OCI medical device includes a coherent light source, a light sensor, a first processing unit adapted to calculate OCI Data from the light sensor, a control unit which allows taking or loading of at least one Reference OCI Value, a second processing unit adapted to calculate the Intra-Individual Relative Assessment of the OCI Data of an Imaging Zone and the at least one OCI Reference Value, and display means adapted to show at least one Relative OCI Value. Uses and a method for assessing the blood flow of a body region use OCI imaging and include an Intra-Individual Relative Assessment between OCI Data of the Imaging Zone and at least one Reference OCI Value.

Abstract: A high-speed laser perfusion imaging instrument including a laser source, a detector, a signal-processing unit, data memory, and a screen to display results. A section of a sample surface is illuminated with laser light; reemitted light from the irradiated surface is collected by focusing optics on a 2D array of integrating photodetectors having elements that can be accessed individually or in a pre-defined selection of pixels at high speed. This 2D array measures intensity variations at each individual pixel. Average amplitude and mean frequency of the measured signal contain information about concentration and speed of moving blood cells. For real-time imaging, exposure time is used as a parameter to measure relative perfusion changes. These data are stored and processed with the signal-processing unit to deliver 2D flow maps of the illuminated sample section, and allow a simple overlay between a conventional image and processed flow maps.

Abstract: The invention concerns an OCI medical device (100) comprising the following elements:—a coherent light source (120),—a 2D light sensor (120),—a screen (110) that displays OCI map and/or mixture map,—a processing unit that calculates the OCI map; all said elements being included in a single movable unit. The invention also relates to the use of said OCI medical device.

Abstract: Process for recovering and reusing effluent gas from an ozonization reactor in a plant for treating effluent, especially sewage, which includes a biological reactor, a clarifier and an ozonization reactor. The effluent gas from the ozonization reactor is brought, as a cocurrent, into contact with a stream of water containing compounds that can be oxidized by the ozone, so that the residual ozone is removed and efficiently consumed. The effluent gas thus stripped of the residual ozone is then, optionally, pressurized using a fluid taken from the plant so as to produce a gas/liquid mixture. The gas liquid mixture is converted into an emulsion of fine bubbles, and the emulsion is introduced into the biological reactor, preferably near the bottom of the latter.

Abstract: A method for the generation of a supply of ozone containing process gas exhibiting high effective ozone content basically involves the steps of (a) providing a stream of an oxygen containing feed gas having a temperature not greater than about 50.degree. C. and an absolute pressure between about 1 and 3 bar, (b) subjecting the stream of feed gas to an electric discharge that transforms some of its oxygen content into ozone to produce a stream of ozone containing gas, and (c) compressing the ozone containing gas with simultaneous cooling thereof to produce a stream of ozone containing process gas having a temperature not greater than about the temperature of the feed gas, an absolute pressure greater than 3 bar and an absolute ozone partial pressure of at least 0.2 bar. Various systems for carrying out such methods are disclosed.