Patents by Inventor Thomas Peschel
Thomas Peschel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110286075Abstract: The invention relates to an adaptive mirror based on a ceramic substrate having a corresponding reflector and piezoelectric actuators, a cooling device being integrated in the substrate. The invention likewise relates to a method for the production of such mirrors. The mirrors according to the invention are used for the modulation or deformation of a laser wavefront of high power.Type: ApplicationFiled: March 17, 2009Publication date: November 24, 2011Inventors: Claudia Bruchmann, Erik Beckert, Thomas Peschel, Christoph Damm
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Publication number: 20110238159Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient's body and a second expanded mode when it is implanted.Type: ApplicationFiled: February 18, 2011Publication date: September 29, 2011Inventors: VOLKER GUYENOT, Thomas Peschel, Christoph Damm, Hans-Reiner Figulla, Markus Ferrari, Johannes Jung
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Publication number: 20110222178Abstract: The present invention relates to the production of an adaptive deformable mirror for compensation of defects of a wavefront.Type: ApplicationFiled: March 17, 2009Publication date: September 15, 2011Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., FRIEDRICH-SCHILLER-UNIVERSITAT JENAInventors: Claudia Bruchmann, Erik Beckert, Thomas Peschel, Christoph Damm, Sylvia Gebhardt
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Publication number: 20110100066Abstract: A device for joining and tapering optical components such as fibers includes a retaining device for holding optical components in a processing site, a laser radiation source for emitting a laser beam and beam forming elements for guiding the laser beam to the processing site. At least a first beam forming element is inserted into the beam path of the laser radiation source for producing a radiation having the form of an annulus and a second beam forming element is provided for specifying the angle of incidence of the radiation having the form of an annulus onto the optical components at the processing site.Type: ApplicationFiled: May 19, 2009Publication date: May 5, 2011Inventors: Steffen Böhme, Thomas Peschel, Ramona Eberhardt, Andreas Tünnermann, Jens Limpert
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Patent number: 7914575Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient's body and a second expanded mode when it is implanted.Type: GrantFiled: October 2, 2009Date of Patent: March 29, 2011Assignee: JenaValve Technology, Inc.Inventors: Volker Guyenot, Thomas Peschel, Christoph Damm, Hans-Reiner Figulla, Markus Ferrari, Johannes Jung
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Patent number: 7896915Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient's body and a second expanded mode when it is implanted.Type: GrantFiled: April 13, 2007Date of Patent: March 1, 2011Assignee: JenaValve Technology, Inc.Inventors: Volker Guyenot, Thomas Peschel, Christoph Damm, Hans-Reiner Figulla, Markus Ferrari, Johannes Jung
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Publication number: 20100265485Abstract: Flexibly deformable holding elements operate such that substrates can be held in a fixed manner at a surface of the holding element electrostatically or also by means of negative pressure and planar positional deviations or unwanted deformations can be compensated simply and reliably, where at least one cut-out having an opening arranged at the rear side is formed at the rear side of the holding element which is disposed opposite the surface, and an actuator is arranged there exerting compressive forces or pulling forces for a widening or narrowing of the cut-out and/or for a deformation of the holding element.Type: ApplicationFiled: September 23, 2009Publication date: October 21, 2010Applicant: Frauhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Gerhard Kalkowski, Stefan Risse, Thomas Peschel, Christoph Damm
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Publication number: 20100122603Abstract: A table system for vacuum application has a base plate and a moving table guided by aerostatic bearing units. The bearing units (10) are connected to supply lines and suction lines for supplying and extracting the gas required for the operation of the bearing units and are provided in each instance with a sealing system having at least one stage and comprising suction channel and sealing gap for sealing relative to the vacuum. The table system is characterized in that the aerostatic bearing units (10) are constructed at least partially as swivel joints, and a push rod (4) which is actuated by a drive (5) for guiding the moving table laterally is connected to the rotating part (21) of each swivel joint, and in that the push rods (4) are hollow and constitute a component part of the suction lines for extracting the operating gas.Type: ApplicationFiled: November 16, 2009Publication date: May 20, 2010Applicant: VISTEC ELECTRON BEAM GMBHInventors: Gerhard Schubert, Christian Jackel, Ulf-Carsten Kirschstein, Michael Boehm, René Bauer, Gerd Harnisch, Thomas Peschel, Stefan Risse, Christoph Schenk
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Publication number: 20100061667Abstract: A proposed aerostatic bearing arrangement for moving a device on a base structure, particularly in a vacuum environment, has at least one aerostatic bearing element comprising a bearing body having a load-carrying zone and a suction area. An electrostatic preloading unit having at least one electrode is associated with the at least one aerostatic bearing element, and a voltage can be applied to the electrode in such a way that a force component is generated in direction of the surface normal of the bearing body of the aerostatic bearing element.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Applicant: VISTEC ELECTRON BEAM GMBHInventors: Gerhard Schubert, Christian Jackel, Ulf-Carsten Kirschstein, Michael Boehm, René Bauer, Gerd Harnisch, Thomas Peschel, Stefan Risse, Christoph Schenk
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Publication number: 20100049303Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient's body and a second expanded mode when it is implanted.Type: ApplicationFiled: October 2, 2009Publication date: February 25, 2010Inventors: Volker Guyenot, Thomas Peschel, Christoph Damm, Hans-Reiner Figulla, Markus Ferrari, Johannes Jung
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Publication number: 20090255447Abstract: The invention is directed to a table for vacuum application which is guided by means of aerostatic bearing elements, having a fixedly mounted supporting structure and a tabletop which is displaceable in x-direction and y-direction with respect to the fixedly mounted supporting structure by means of slides. The slides are provided with the aerostatic bearing elements for guiding, these aerostatic bearing elements being connected to feed lines for supplying the gas required for the operation of the gas bearings and suction lines for removing this gas. The suction lines comprise at least one variable-length line arrangement having a first pipe member and a second pipe member which penetrate one inside the other without contacting, at least one sealing gap being provided between the pipe members.Type: ApplicationFiled: April 10, 2009Publication date: October 15, 2009Applicant: VISTEC ELECTRON BEAM GMBHInventors: Gerhard Schubert, Christian Jackel, Ulf-Carsten Kirschstein, Michael Boehm, Rene Bauer, Gerd Harnisch, Thomas Peschel, Stefan Risse, Christoph Schenk
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Patent number: 7491946Abstract: The invention is directed to electrostatic deflection systems for corpuscular beams which can be used particularly in microstructured and nanostructured applications in lithography installations or measuring equipment. According to the proposed object of the invention, the individual electrodes of a deflection system of this kind should permanently have and retain a very exact axially symmetric arrangement relative to one another. In the electrostatic deflection system according to the invention, rod-shaped electrodes are held in an axially symmetric arrangement in an inwardly hollow carrier through which a corpuscular beam can be directed. The carrier is formed of at least two, and at most four, carrier members which are connected to one another.Type: GrantFiled: February 3, 2006Date of Patent: February 17, 2009Assignee: Leica Microsystems Lithography GmbHInventors: Stefan Risse, Thomas Peschel, Christoph Damm, Andreas Gebhardt, Mathias Rohde, Christoph Schenk, Thomas Elster, Hans-Joachim Doering, Gerhard Schubert
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Publication number: 20080255660Abstract: A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient's body and a second expanded mode when it is implanted.Type: ApplicationFiled: April 13, 2007Publication date: October 16, 2008Inventors: Volker Guyenot, Thomas Peschel, Christoph Damm, Hans-Reiner Figulla, Markus Ferrari, Johannes Jung
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Patent number: 7198646Abstract: This invention relates to a device for fastening and anchoring heart valve prostheses which is essentially formed of wire-shaped interconnected elements. The aim of the invention is to be able to be implant, in a minimally invasive manner, a device of this type via the aorta by compressing the device to make it smaller, and by extending the same at the site of implantation, whereby ensuring a secure retention and a secure sealing with regard to the aorta wall. To this end, the invention provides that for fastening and supporting a cardiac valve prosthesis, three identical pairs of arched elements are interconnected, with a configuration that is offset by 120°, by means of solid body articulations. These solid body articulations carry out the function of pivot bearings.Type: GrantFiled: February 28, 2001Date of Patent: April 3, 2007Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Hans-Reiner Figulla, Markus Ferrari, Carsten Weber, Thomas Peschel, Christoph Damm
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Publication number: 20060192133Abstract: The invention is directed to electrostatic deflection systems for corpuscular beams which can be used particularly in microstructured and nanostructured applications in lithography installations or measuring equipment. According to the proposed object of the invention, the individual electrodes of a deflection system of this kind should permanently have and retain a very exact axially symmetric arrangement relative to one another. In the electrostatic deflection system according to the invention, rod-shaped electrodes are held in an axially symmetric arrangement in an inwardly hollow carrier through which a corpuscular beam can be directed. The carrier is formed of at least two, and at most four, carrier members which are connected to one another.Type: ApplicationFiled: February 3, 2006Publication date: August 31, 2006Inventors: Stefan Risse, Thomas Peschel, Christoph Damm, Andreas Gebhardt, Mathias Rohde, Christoph Schenk, Thomas Elster, Hans-Joachim Doering, Gerhard Schubert
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Publication number: 20030149478Abstract: The invention relates to a device for fastening and anchoring heart valve prostheses which is essentially formed of wire-shaped interconnected elements. According to the object such a device shall be able to be implanted through the aorta in a minimally invasive manner by folding up small enough, and deployed at the site of implantation, wherein a secure retention and a secure sealing with respect to the aorta wall are ensured. To solve this object, for fastening and anchoring a heart valve prosthesis three respective identical pairs of arched elements are interconnected by means of solid articulations in a respective configuration offset by 120° each. These solid articulations meet the function of pivot bearings.Type: ApplicationFiled: November 25, 2002Publication date: August 7, 2003Inventors: Hans-Reiner Figulla, Markus Ferrari, Carsten Weber, Thomas Peschel, Christoph Damm
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Patent number: 6480369Abstract: The invention refers to a receiving and supporting system for a substrate (17) in an exposure system, which is provided with a handling system for the supply of the substrate (17), with an electrostatic chuck arrangement (1) moveable in X, Y coordinates, for the support of the substrate (17) during the exposure, and with an exposure optic, from which a right angled particle radiation, in Z-direction is directed toward the substrate surface. In regard to the respective supporting system, at least a second electrostatic chuck arrangement (6) is provided, which—similar to the first chuck arrangement (1), for the support of the substrate (17) during the exposure, provides a bearing surface for the substrate, whereby the bearing surface of this second chuck arrangement (6) is positioned movable in Z coordinate.Type: GrantFiled: October 4, 2000Date of Patent: November 12, 2002Assignee: Leica Microststems Lithography GmbHInventors: Ulf-Carsten Kirschstein, Stefan Risse, Christoph Damm, Thomas Peschel