Rouven
Rouven Josl, Ostifildern DE
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20120083039 | METHOD FOR QUANTITATIVELY DETERMINING IMPURITIES - The invention relates to a method for quantitatively determining impurities in the form of aldehydes and ketones in glycerin serving for preparing pharmaceuticals, in which the glycerin containing impurities is reacted with a derivatization reagent in a sample solution and the quantity of derivatized impurities is determined. Said method is characterized in that PFBHA, O-(2,3,4,5,6-pentafluorobenzyl)-hydroxylamine hydrochloride, is used as the derivatization reagent, the derivatizing is conducted in the presence of a solubilizer in the form of a polar organic solvent, and liquid chromatographic separation and UV detection are performed. A subject matter of the invention is also the use of glycerin, in which the content of impurities of 9 ppm or less has been determined by means of the described method in a pharmaceutical preparation. According to the invention, impurities in glycerin can be better determined. | 04-05-2012 |
Rouven Meidlinger, Aachen DE
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20100121478 | POSITION-DEPENDENT COMPLIANCE COMPENSATION IN A MACHINE TOOL - The invention relates to a method and a device for position-dependent compliance compensation in a machine tool. To permit the lowest possible machining time or greatest possible contour fidelity in the machining of a workpiece with a machine tool, the following method steps are proposed:—deriving the compliance ( | 05-13-2010 |
Rouven Rosenheimer, Muenchen DE
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20090318771 | SURGICAL LAMP FIELD SHAPE - A surgical lamp includes a lamp body with illuminants emitting bundled light beams with axes intersect a central axis of the lamp body, and illuminants emitting bundled light beams with axes that do not intersect the central axis. The shape of the light field and the distribution of the light intensity can be modified by driving different illuminants. | 12-24-2009 |
20090318772 | Surgical Lamp Beam Arrangement - A surgical lamp includes a lamp body with illuminants. Axes of bundled light beams emitted by the illuminants intersect a central axis at different positions along the central axis. | 12-24-2009 |
20110118879 | Transmitting Instructions in a Medical Supply Unit - A medical supply unit includes a bus system for transmitting instructions of control elements to actuators. The bus system is provided with transmitters and receivers being connected to each other by a transmission system. Via the transmission system, commands of the transmitters are transmitted, which are controlled by the control elements, and the responsive receiver transfers the command to a switching instruction at an output of the responsive receiver so as to control an actuator. | 05-19-2011 |
20140066722 | Surgical Lamps and Methods for Illuminating Operating Sites - A surgical lamp for illuminating an operating site includes a lamp body that includes first and second light sources that respectively generate first and second light fields of different diameter on the operating site. When a change in a distance between the lamp body and the operating site is detected, the first and second light intensities of the first and second light sources, respectively, can be controlled such that the predetermined diameter (dx) at which the preset relative central illuminance (Ecx) of the resultant light field is generated is maintained at a substantially constant value as the distance changes. | 03-06-2014 |
Rouven Rosenheimer, Munchen DE
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20090127433 | Illuminating a Surgical Site - A surgical lamp includes a light source, a camera, at least one rotatable polarization filter, and a control device that controls the polarization filter according to the results of an evaluation of the image which is captured by the camera. | 05-21-2009 |
Rouven Streller, Hinterzarten DE
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20140144799 | STERILE CONTAINER SYSTEM COMPRISING A TRANSPORTATION SAFETY DEVICE - A sterile container system for the sterile transport and storage of medical, in particular surgical instruments and/or implants during a sterilization process, includes a closable sterile container which is formed by a lid and a trough, and at least one sieve cage which can be inserted therein, at least one fastening device being present which acts, on the one hand, on one of the medical instruments which can be inserted in the sieve cage, immobilizing the instrument on the sieve cage, and at the same time acts on the sieve cage, immobilizing the latter on the sterile container. | 05-29-2014 |