Abstract: A deep brain stimulation device includes a probe having a transparent distal portion, crossed by a channel open at a proximal end of the probe, and also includes electrodes affixed to the distal portion of the probe and electrode terminals affixed to a proximal portion of the probe. Further, the device includes an electrical housing including a channel open at its two ends and housing electrical terminals in contact with the terminals of the probe, and an electrical extension lead affixed to the housing and connected to the terminals of the housing. The channel of the housing is open at the other one of its ends and the device further includes a waveguide at least partly housed in the central channel of the probe, all the way to the distal portion of the probe, and a transmitter housing capable of being connected to the waveguide for the injection of a predetermined wavelength.

Abstract: The invention relates to an implantable device for optical stimulation of an organ of the human or animal body, having a probe comprising a tube made of a first transparent material, this tube being hermetically closed by at least one stopper; at least one light source arranged inside the tube; a plurality of electrical connection elements extending through the stopper and electrically connecting said at least one light source to the outside of the tube; and a linking cable arranged outside the tube and connected to said connection elements.

Abstract: The invention relates to a device for detecting a leak in a sealed enclosure, comprising an organic light-emitting diode intended to be placed inside the enclosure; and a device for measuring a value representative of at least one of the following parameters: a) the luminous efficacy of the diode; and b) the impedance of the diode.

Abstract: The invention relates to a device comprising: a light source mounted in a housing, the housing comprising a transparent window opposite the light source; an optical fiber fitted with a connector suitable for detachably engaging with the housing to retain an input surface of the optical fiber opposite the light source via the window; and an interface element made of transparent elastomeric material suitable, in the connected position, for being retained so as to be compressed between the window and the input surface of the optical fiber.

Abstract: A deep brain stimulation device including: a probe (60) having a transparent distal portion, crossed by a channel (28) open at a proximal end of the probe, and including electrodes (20a, 20b, 20c, 20d) affixed to the distal portion of the probe and electrode terminals (22a, 22b, 22c, 22d) affixed to a proximal portion of the probe; an electrical housing including a channel open at its two ends and housing electrical terminals in contact with the terminals (22a, 22b, 22c, 22d) of the probe; and an electrical extension lead affixed to the housing and connected to the terminals of the housing. The channel of the housing is open at the other one of its ends and the device further includes: a waveguide (50) at least partly housed in the central channel (28) of the probe, all the way to the distal portion of the probe; and a transmitter housing capable of being connected to the waveguide (50) for the injection of a predetermined wavelength.

Abstract: An implantable device for optically stimulating a brain of a human being or animal, including: a multi-channel biocompatible catheter including a plurality of channels extending substantially parallel to each other relative to a longitudinal axis of the multi-channel catheter; a light guide, extending into one channel, for optically stimulating the brain, the multi-channel catheter acting as a sheath totally enveloping the light guide; a functional element, extending into another channel, to measure light injected into a surrounding medium at a distal end of the light guide and/or an element acting on the shape of the multi-channel catheter.

Abstract: The invention concerns an integrated-structure device for transmitting optical waves comprising a plurality of optical microguides (11), a plurality of notches (12) with coupling surfaces through which respectively emerge said optical microguides; optical fibers whereof the end parts are respectively arranged and fixed in said notches so as to optically couple the end surfaces of said optical fibers and said coupling surfaces of said optical microguides; said coupling surfaces (7) of said notches (4) extend perpendicular to said integrating planes and are slanting relative to the longitudinal direction of the end part (5) of the optical fiber (6) and/or of said optical micro-guide (3) and are aligned; said end surfaces (8) of said optical fibers (6) extend parallel to said coupling surfaces (7) of said notches (4) and are aligned.

Abstract: The invention concerns an integrated-structure device for transmitting optical waves comprising a plurality of optical microguides (11), a plurality of notches (12) with coupling surfaces through which respectively emerge said optical microguides; optical fibers whereof the end parts are respectively arranged and fixed in said notches so as to optically couple the end surfaces of said optical fibers and said coupling surfaces of said optical microguides; said coupling surfaces (7) of said notches (4) extend perpendicular to said integrating planes and are slanting relative to the longitudinal direction of the end part (5) of the optical fiber (6) and/or of said optical micro-guide (3) and are aligned; said end surfaces (8) of said optical fibers (6) extend parallel to said coupling surfaces (7) of said notches (4) and are aligned.

Abstract: The present invention relates to an optical micro-actuator comprising a cavity (30) formed between at least one optical input channel (12, 12a, 12b) and at least one optical output channel (14, 14a, 14b), the cavity being capable of containing at least one first optical fluid and one second optical fluid (32, 33, 34, 35), with different optical properties, and means of modifying the position of an interface between the first and second optical fluids with respect to the optical channels. According to the invention, the means of modifying the position of the interface comprise at least one chamber containing at least one fluid in fluid contact with the cavity, and means of modifying the volume of the chamber.

Abstract: A device for the positioning and holding of an optical fiber having a substrate, a groove for receiving the optical fiber, and at least one first and one second groove widenings along a longitudinal axis of said groove. An adhesive substance is introduced in one of the two widenings, said adhesive substance fixing the fiber to the substrate. A process for fixing a fiber to a substrate includes the steps of positioning the fiber, holding said fiber with a tool, and introducing an adhesive substance for fixing the fiber to a substrate.

Abstract: A process for reducing the coefficient of friction and the wear between a metal part and an organic polymer- or copolymer-based part, in an aqueous medium containing chlorides, characterized in that the organic polymer- or copolymer-based part is submitted to a surface treatment by ionic implantation of elements selected from nitrogen, argon, oxygen and carbon.