Abstract: The present invention relates to an injector for injecting gas, in particular hydrogen, preferably for directly injecting hydrogen, comprising an injector housing for holding injector components, a valve needle movably arranged along its longitudinal axis in the injector housing and configured to selectively close or release an injection opening for the flow of hydrogen therethrough, and a valve, preferably a solenoid valve, which is adapted to transfer the valve needle into a closing or releasing state by a movement along its longitudinal axis. The injector is characterized in that the valve needle is a hollow needle adapted to pass a gas, in particular hydrogen, flowing through the injection port through the interior of the hollow needle.

Abstract: A venous valve prosthesis for transporting a flow of body fluid in a vessel in a predetermined direction includes includes a hollow-cylindrical support structure. A skirt is connected to the support structure and forms a closed, circumferential jacket of the support structure. The prosthesis also includes a valve leaflet arrangement with a first valve leaflet and a second valve leaflet, each being connected to the skirt. A downstream edge of the first valve leaflet and a downstream edge of the second valve leaflet are opposite to each other and configured in such a manner that in a first state of the valve leaflet arrangement they form an opening for blood to flow through in the predetermined direction and in a second state of the valve leaflet arrangement the opening is closed and to prevent a backflow of blood in a direction opposite to the predetermined direction. A ratio of the inner diameter of the support structure to its length in the predetermined direction is at most 1.

Abstract: The invention relates to a method for capturing images of a preferably structured surface of an object, using at least one line-scan camera for scanning the surface, wherein the surface is illuminated in a structured manner and wherein for reconstruction of the surface a time-oriented evaluation and/or spatial evaluation of acquired images is effected optionally taking into account a relative movement between the line-scan camera and the surface. Said method is carried out by a device for capturing images of a preferably structured surface of an object.

Abstract: The invention relates to an ocular implant for treating glaucoma. The problem addressed by the invention is to make it possible to drain aqueous humor from the anterior chamber of the eye into the subconjunctival or suprachoroidal space in order to lower the intraocular pressure in glaucoma cases. The device is to do away with the drawbacks of known valve mechanisms and should be economical to produce. In order to solve said problem, the glaucoma drainage implant is composed of an elongate, hollow main member in which a flow-limiting membrane is arranged in the inflow region.

Abstract: The aim of the invention is a quick and very precise reconstruction of an object. This is achieved by a device and a method for detecting an image of a preferably structured surface of an object (6), comprising at least one pattern projection unit for illuminating the object (6) and at least one imaging unit (7) for capturing images of projected patterns. A temporal and/or spatial analysis of received images or image sequences is carried out in order to reconstruct the surface. The at least one pattern projection unit is designed to generate patterns using a diffraction of light on an optical grating. Furthermore, the method for detecting images is characterized in that by using the temporal and/or spatial analysis of the captured images or image sequences, corresponding pixels are ascertained by means of algorithms, said pixels together with an imaging function allowing a triangulation of surface points.

Abstract: The aim of the invention is a quick and very precise reconstruction of an object. This is achieved by a device and a method for detecting an image of a preferably structured surface of an object (6), comprising at least one pattern projection unit for illuminating the object (6) and at least one imaging unit (7) for capturing images of projected patterns. A temporal and/or spatial analysis of received images or image sequences is carried out in order to reconstruct the surface. The at least one pattern projection unit is designed to generate patterns using a diffraction of light on an optical grating. Furthermore, the method for detecting images is characterized in that by using the temporal and/or spatial analysis of the captured images or image sequences, corresponding pixels are ascertained by means of algorithms, said pixels together with an imaging function allowing a triangulation of surface points.

Abstract: The invention relates to an ocular implant for treating glaucoma. The problem addressed by the invention is to make it possible to drain aqueous humor from the anterior chamber of the eye into the subconjunctival or suprachoroidal space in order to lower the intraocular pressure in glaucoma cases. The device is to do away with the drawbacks of known valve mechanisms and should be economical to produce. In order to solve said problem, the glaucoma drainage implant is composed of an elongate, hollow main member in which a flow-limiting membrane is arranged in the inflow region.

Abstract: According to the invention, a method for detecting and measuring local shape deviations in flat, curved, or domed surfaces of a test object, wherein three-dimensional measurement data (D) of the surfaces are evaluated by means of an evaluating apparatus, is designed and further developed, with regard to nondestructive testing of test objects with objective and easy-to-interpret assessment results, in such a way that the evaluating apparatus uses at least one virtual filter element as a concave filter for detecting concave sub-areas in flat or convex surfaces and/or as a convex filter for detecting convex sub-areas in flat or concave surfaces, that the filter element determines magnitudes of the shape deviations, and that said magnitudes are output by means of an outputting apparatus as measured values. The invention specifies a device for performing a corresponding method.

Abstract: The invention relates to a method for capturing images of a preferably structured surface of an object, using at least one line-scan camera for scanning the surface, wherein the surface is illuminated in a structured manner and wherein for reconstruction of the surface a time-oriented evaluation and/or spatial evaluation of acquired images is effected optionally taking into account a relative movement between the line-scan camera and the surface. Said method is carried out by a device for capturing images of a preferably structured surface of an object.

Abstract: A method for detecting and measuring local deviations from the form in planar, curved, or arched surfaces of a test object is provided, whereby three-dimensional measurements (D) of the surfaces are processed with an evaluation unit, embodied and further developed with regards to a non-destructive examination of test objects with objective and easily interpreted assessment results such that the evaluation device uses at least one virtual filter element as a concave filter for detecting concave partial areas in planar or convex surfaces and/or as a convex filter for detecting convex partial areas in planar or concave surfaces, that the filter element determines values of the deviations from the form, and that they are displayed via a display device in the form of measurements. A device for executing a respective method is provided.

Abstract: An electrode arrangement for sensing electrical activity in target tissue is described. A support electrode has an elongate electrode body with a base end and a penetrating end for insertion into the target tissue. A fixation electrode has an elongate electrode body with a base end and a penetrating end at an angle to the electrode body. The electrodes are joined together with their electrode bodies in parallel so that the penetrating end of the fixation electrode penetrates a fixed distance into the target tissue so that at least one of the electrodes senses electrical activity in the target tissue.

Abstract: The invention relates to an electrode arrangement and a measuring device for measuring the action flow and/or the action potential of an electrically active tissue. The aim of the invention is to provide a simple and economically producible electrode for measuring action flows and/or action potentials in electrically active tissues (preferably the stapedius muscle tissue), ensuring that the electrode is fixed securely, but reversibly, in the muscle tissue and that the muscle tissue is disturbed as little as possible. The electrode arrangement according to the invention comprises a first electrode (2) and a fixing element (3), the first electrode (2) being connected to a first, long electrical line (4) and consisting of a long base body (6) comprising a first end (7) and a second end (8). The first electrical line (4) is connected to the base body (6) in the region of the second end (8) thereof, and means are provided for reversibly fixing the fixing element (3) to the first electrode (2).

Abstract: An electrode arrangement is described for sensing electrical activity in target tissue. An inner electrode has an elongate electrode body formed as a cylindrical section with an inner penetrating end for insertion into the stapedius muscle target tissue. An outer electrode fits over the inner electrode and an outer penetrating end for insertion into the target tissue. The two electrodes are joined together with their electrode bodies in parallel so that the penetrating ends of the electrodes penetrate in the same direction into the target tissue to sense electrical activity in the target tissue.

Abstract: A device for measuring stapedius tissue activity uses a mechanoelectrical transducer having two ends. A static end is configured for attachment to the bony pyramid in the middle ear, and a dynamic end is configured for attachment to stapedius tissue in the middle ear. The transducer generates a corresponding electrical sensing signal output when the stapedius tissue moves the dynamic end relative to the static end.

Abstract: A device for three-dimensional optical measurement of surfaces of arbitrary objects (2) using a pattern projection method, with a projector (3) for projecting patterns onto the surface (1) of the object (2), at least one camera (5) or imaging unit for recording the projected pattern and a computer for processing the image information recorded by the camera or the imaging unit to form 3D data, optionally for three-dimensional imaging of the object (2), is characterized in that the projector (3) only emits narrowband light and in that a filter apparatus is arranged in the detection beam path in front of the camera (5) or imaging unit, which filter apparatus is only transmissive to the wavelength range of the light emitted by the projector (3). A method application of the device according to the invention has a corresponding design.

Abstract: An electrode arrangement is described for sensing electrical activity in target tissue. An inner electrode has an elongate electrode body formed as a cylindrical section with an inner penetrating end for insertion into the stapedius muscle target tissue. An outer electrode fits over the inner electrode and an outer penetrating end for insertion into the target tissue. The two electrodes are joined together with their electrode bodies in parallel so that the penetrating ends of the electrodes penetrate in the same direction into the target tissue to sense electrical activity in the target tissue.

Abstract: An electrode arrangement is described for sensing electrical activity in target tissue. An inner electrode has an elongate electrode body formed as a cylindrical section with an inner penetrating end for insertion into the stapedius muscle target tissue. An outer electrode fits over the inner electrode and an outer penetrating end for insertion into the target tissue. The two electrodes are joined together with their electrode bodies in parallel so that the penetrating ends of the electrodes penetrate in the same direction into the target tissue to sense electrical activity in the target tissue.

Abstract: The invention relates to a stapedius muscle electrode array for detecting the action elements generated when a human stapedius muscle is contracted. Said array comprises an electrode (2, 2?, 2?) that is adapted for bipolar discharge and is to be attached to a human stapedius muscle. The electrode has two flexible, elastic, electrically conducting elongate elements (2a, 2b), each of which has a distal (4a, 4b) and a proximal end (17a, 17b) and is helically preshaped along at least some of the length thereof to the distal end (4a, 4b) thereof in such a way that the distal end (4a, 4b) and a section of the respective elongate element (2a, 2b) which adjoins the distal end (4a, 4b) can be placed at least in part around the tendon (7) extending between the stapedius muscle and the stapes while the helical part can be guided along the tendon (7), can be moved in the direction of the stapedius muscle, and can be at least partly twisted into and/or slid onto the region of the muscle belly (6) adjoining the tendon (7).

Abstract: The present invention relates to an ocular implant, particularly a glaucoma stent. It is the object of the present invention to devise an ocular implant which allows the ocular eye pressure to be regulated, i.e., to be maintained at a desired level, while preventing the flow resistance from increasing over time, for example due to fibrosis. In order to achieve this object, the ocular implant according to the invention comprises a small tube (5), the wall surface (3) of which encloses a hollow duct that is open on both sides in the longitudinal direction of the hollow duct, wherein a first opening (1) allowing ocular humor to flow in and a second opening (2) allowing the ocular humor to be discharged is provided, and wherein the wall surface (3) is formed by a liquid-tight material, and wherein at least one pressure-controlled valve (4) is disposed in the area of the wall surface (3).

Abstract: An electrode arrangement is described for sensing electrical activity in target tissue. An inner electrode has an elongate electrode body formed as a cylindrical section with an inner penetrating end for insertion into the stapedius muscle target tissue. An outer electrode fits over the inner electrode and an outer penetrating end for insertion into the target tissue. The two electrodes are joined together with their electrode bodies in parallel so that the penetrating ends of the electrodes penetrate in the same direction into the target tissue to sense electrical activity in the target tissue.