Patents by Inventor Stefan Wirth
Stefan Wirth 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: 20240061134Abstract: An X-ray imager having an X-ray source, a semiconductor detector, and a processor. On a rear side of the semiconductor detector facing away from the front side, in each of a plurality of imaging regions of the semiconductor detector, at least one imaging electrode is arranged and a plurality of detectors each contact at least one of the imaging electrodes in order to acquire first measurement values relating to X-ray signals of the imaging electrodes. The processor is configured to establish an image dataset dependent upon the first measurement values. At least one additional electrode is arranged on the rear side of the semiconductor detector outside the imaging regions. At least one current sensor contacts the additional electrode or at least one of the additional electrodes in each case to acquire the current flow by way of the second measurement values relating to the at least one additional electrode.Type: ApplicationFiled: August 16, 2023Publication date: February 22, 2024Inventors: Björn Kreisler, Edgar Göderer, Stefan Wirth
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Patent number: 11443867Abstract: A method is for producing a scattered beam collimator starting from a lower side and extending in a build-up direction as far as an upper side, and having a large number of X-ray absorbing partitions, and in which pass-through channels for unscattered X-ray radiation are embodied between the partitions. A lithographic process is used, by which the partitions of the scattered beam collimator are formed from a photoresist into which an X-ray absorbing material is mixed.Type: GrantFiled: June 10, 2020Date of Patent: September 13, 2022Assignee: SIEMENS HEALTHCARE GMBHInventors: Thorsten Ergler, Stefan Wirth, Vojislav Krstic, Maria Magdalena Kolesnik-Gray
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Patent number: 11123029Abstract: A method is for producing a grid-like beam collimator. In an embodiment, the method includes printing a suspension, including a binder and metal particles, in several stacked layers to build a layer stack with a grid structure including a number of crossing webs, and removing the binder from the layer stack. In an embodiment, the printing includes applying a curable liquid stiffening material at least on a surface of the grid structure, and curing the curable liquid stiffening material after the applying.Type: GrantFiled: June 19, 2019Date of Patent: September 21, 2021Assignee: SIEMENS HEALTHCARE GMBHInventors: Andreas Freund, Harald Geyer, Stefan Wirth, Guido Stiebritz, Thomas Studnitzky, Kay Reuter, Francois Dary, Mike Stawovy
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Publication number: 20200402682Abstract: A method is for producing a scattered beam collimator starting from a lower side and extending in a build-up direction as far as an upper side, and having a large number of X-ray absorbing partitions, and in which pass-through channels for unscattered X-ray radiation are embodied between the partitions. A lithographic process is used, by which the partitions of the scattered beam collimator are formed from a photoresist into which an X-ray absorbing material is mixed.Type: ApplicationFiled: June 10, 2020Publication date: December 24, 2020Applicant: Siemens Healthcare GmbHInventors: Thorsten ERGLER, Stefan WIRTH, Vojislav KRSTIC, Maria Magdalena KOLESNIK-GRAY
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Patent number: 10866328Abstract: A radiation detector includes an intermediate layer, which is arranged between a detection layer with a number of detection elements and a number of readout units. In an example embodiment of this arrangement, the intermediate layer has a plurality of electrically-conductive connections between the detection elements and the readout units. An example embodiment further specifies a medical imaging system, as well as a method of using the heating apparatus.Type: GrantFiled: January 28, 2020Date of Patent: December 15, 2020Assignee: SIEMENS HEALTHCARE GMBHInventors: Thorsten Ergler, Harald Geyer, Michael Hosemann, Stefan Wirth, Jan Wrege
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Publication number: 20200158890Abstract: A radiation detector includes an intermediate layer, which is arranged between a detection layer with a number of detection elements and a number of readout units. In an example embodiment of this arrangement, the intermediate layer has a plurality of electrically-conductive connections between the detection elements and the readout units. An example embodiment further specifies a medical imaging system, as well as a method of using the heating apparatus.Type: ApplicationFiled: January 28, 2020Publication date: May 21, 2020Applicant: Siemens Healthcare GmbHInventors: Thorsten Ergler, Herald Geyer, Michael Hosemann, Stefan Wirth, Jan Wrege
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Patent number: 10598798Abstract: A radiation detector includes an intermediate layer, which is arranged between a detection layer with a number of detection elements and a number of readout units. In an example embodiment of this arrangement, the intermediate layer has a plurality of electrically-conductive connections between the detection elements and the readout units. An example embodiment further specifies a medical imaging system, as well as a method of using the heating apparatus.Type: GrantFiled: October 31, 2017Date of Patent: March 24, 2020Assignee: SIEMENS HEALTHCARE GMBHInventors: Thorsten Ergler, Harald Geyer, Michael Hosemann, Stefan Wirth, Jan Wrege
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Publication number: 20190388043Abstract: A method is for producing a grid-like beam collimator. In an embodiment, the method includes printing a suspension, including a binder and metal particles, in several stacked layers to build a layer stack with a grid structure including a number of crossing webs, and including removal of the binder from the layer stack. In an embodiment, the printing includes applying a curable liquid stiffening material at least on a surface of the grid structure, and curing the liquid stiffening material after the applying.Type: ApplicationFiled: June 19, 2019Publication date: December 26, 2019Inventors: Andreas FREUND, Harald GEYER, Stefan WIRTH, Guido STIEBRITZ, Thomas STUDNITZKY, Kay REUTER, Francois DARY, Mike STAWOVY
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Patent number: 10185040Abstract: A detector apparatus includes a scattered radiation grid; a scintillator unit for converting X-rays into a light quantity; an evaluation unit for converting the light quantity into electric signals; and a module-receiving appliance. The scintillator unit and the scattered radiation grid are mechanically connected to the module-receiving appliance via a first connection and the evaluation unit is mechanically connected to the module-receiving appliance via a second connection, independent of the first connection. The evaluation unit, the scintillator unit and the scattered radiation grid are aligned with respect to one another such that light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit.Type: GrantFiled: March 15, 2017Date of Patent: January 22, 2019Assignee: Siemens Healthcare GmbHInventor: Stefan Wirth
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Patent number: 10014430Abstract: A method is disclosed for detecting incident X-ray radiation by way of a direct-converting X-ray radiation detector. A semi-conductor material used for detection purposes is irradiated with additional radiation with an energy level of at least 1.6 eV in order to produce additional charge carriers. A direct-converting X-ray radiation detector is disclosed for detecting X-ray radiation, at least including a semi-conductor material used for X-ray detection and at least one radiation source which irradiates the semi-conductor material with additional radiation, the radiation having an energy level of at least 1.6 eV. A CT system including an X-ray radiation detector is also disclosed.Type: GrantFiled: July 10, 2013Date of Patent: July 3, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Peter Hackenschmied, Edgar Göderer, Christian Schröter, Matthias Strassburg, Stefan Wirth
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Publication number: 20180120447Abstract: A radiation detector includes an intermediate layer, which is arranged between a detection layer with a number of detection elements and a number of readout units. In an example embodiment of this arrangement, the intermediate layer has a plurality of electrically-conductive connections between the detection elements and the readout units. An example embodiment further specifies a medical imaging system, as well as a method of using the heating apparatus.Type: ApplicationFiled: October 31, 2017Publication date: May 3, 2018Applicant: Siemens Healthcare GmbHInventors: Thorsten ERGLER, Harald GEYER, Michael HOSEMANN, Stefan WIRTH, Jan WREGE
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Patent number: 9945966Abstract: A sensor chip, in particular for computerized tomography detectors, including an analog-digital converter electrically connected to an element detecting radiation. A problem addressed is that of defining a sensor chip which is as cost-efficient and reliable as possible. According to an embodiment of the invention, only one single crystalline base plate is used, on which all required components of the sensor chip are applied. A through-contact between the conductor paths or the contacts of both sides of the base plate is used as applicable in order to connect the components of both sides to each other.Type: GrantFiled: March 19, 2014Date of Patent: April 17, 2018Assignee: Siemens AktiengesellschaftInventors: Mario Eichenseer, Thomas Reichel, Stefan Wirth
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Patent number: 9938458Abstract: A method is for the production of a scintillator fiber. In an embodiment, the method includes provisioning a suspension of a binder dissolved in a solvent and a scintillator material; and pressing the suspension into a precipitation bath in which the binder is insoluble.Type: GrantFiled: April 20, 2017Date of Patent: April 10, 2018Assignee: SIEMENS HEALTHCARE GMBHInventors: Cansu Bilgin, Juergen Leppert, Christian Schroeter, Stefan Wirth
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Patent number: 9829586Abstract: A method is disclosed for detecting x-rays using an x-ray detector which includes a direct-conversion semiconductor detector element. Additional radiation is supplied to the semiconductor detector element using a radiation source, and the supply of the additional radiation is controlled and/or regulated on the basis of a specified target value. In at least one embodiment, the target value can be specified in a variable manner over time as a sequence of target values. An x-ray detector system is further disclosed, with which the method can be carried out.Type: GrantFiled: July 9, 2013Date of Patent: November 28, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Edgar Göderer, Peter Hackenschmied, Steffen Kappler, Björn Kreisler, Miguel Labayen De Inza, Daniel Niederlöhner, Mario Reinwand, Christian Schröter, Matthias Strassburg, Stefan Wirth
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Publication number: 20170313938Abstract: A method is for the production of a scintillator fiber. In an embodiment, the method includes provisioning a suspension of a binder dissolved in a solvent and a scintillator material; and pressing the suspension into a precipitation bath in which the binder is insoluble.Type: ApplicationFiled: April 20, 2017Publication date: November 2, 2017Applicant: Siemens Healthcare GmbHInventors: Cansu BILGIN, Juergen LEPPERT, Christian SCHROETER, Stefan WIRTH
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Publication number: 20170269236Abstract: A detector apparatus includes a scattered radiation grid; a scintillator unit for converting X-rays into a light quantity; an evaluation unit for converting the light quantity into electric signals; and a module-receiving appliance. The scintillator unit and the scattered radiation grid are mechanically connected to the module-receiving appliance via a first connection and the evaluation unit is mechanically connected to the module-receiving appliance via a second connection, independent of the first connection. The evaluation unit, the scintillator unit and the scattered radiation grid are aligned with respect to one another such that light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit.Type: ApplicationFiled: March 15, 2017Publication date: September 21, 2017Applicant: Siemens Healthcare GmbHInventor: Stefan WIRTH
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Patent number: 9646731Abstract: A direct-converting x-ray radiation detector is disclosed for detecting x-ray radiation, in particular for use in a CT system. In an embodiment, the detector includes a semiconductor material used for detecting the x-ray radiation; at least one collimator; and at least one radiation source, to irradiate the semiconductor material with additional radiation. In at least one embodiment, the at least one collimator includes at least one reflection layer on a side facing the semiconductor material, on which the additional radiation is reflected to the semiconductor material. In another embodiment, a CT system including the direct-converting x-ray radiation detector, and a method for detecting incident x-ray radiation via a direct-converting x-ray radiation detector, in particular for use in a CT system, are disclosed.Type: GrantFiled: July 9, 2013Date of Patent: May 9, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Fabrice Dierre, Edgar Göderer, Peter Hackenschmied, Steffen Kappler, Björn Kreisler, Miguel Labayen De Inza, Daniel Niederlöhner, Mario Reinwand, Christian Schröter, Karl Stierstorfer, Matthias Strassburg, Justus Tonn, Stefan Wirth
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Patent number: 9583228Abstract: A scattered radiation grid of a CT detector is disclosed and includes a plurality of detector elements arranged in multiple cells in the phi direction and in the z direction of a CT system, having a plurality of free passage channels arranged to correspond to the detector elements, and walls fully enclosing the free passage channels at the longitudinal sides thereof. According to an embodiment of the invention, the walls of the scattered radiation grid are produced using a 3D screen-printing method.Type: GrantFiled: April 16, 2013Date of Patent: February 28, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Mario Eichenseer, Andreas Freund, Stefan Wirth
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Patent number: 9392985Abstract: A direct-conversion x-ray detector or x-ray detector module includes: a direct converter; at least one collimator; and at least one radiation source. The at least one collimator is arranged in a direction of radiation of the x-ray radiation in front of the direct converter, and to restrict direct irradiation of the direct converter by the x-ray radiation. The at least one radiation source is at a side of the direct converter, and configured to irradiate the direct converter with additional radiation. The at least one collimator includes: at least one reflection layer on a side facing the direct converter, and configured to reflect the additional radiation onto the direct converter; and a cooling facility configured to cool the at least one radiation source.Type: GrantFiled: July 10, 2014Date of Patent: July 19, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Thorsten Ergler, Andreas Freund, Björn Kreisler, Christian Schröter, Stefan Wirth
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Patent number: 9322938Abstract: A detector module for a radiation detector is disclosed. In at least one embodiment, the detector module includes a converter layer with contacts, arranged distributed over an area on the rear side, for transmitting electrical signals, wherein the contacts are routed, by way of rewiring, to target contacts on a target region that is smaller than this area. This provides the conditions for simple and secure signal routing between the contacts on the converter layer and readout electronics. In particular, this is successful if a substrate layer used for stabilization purposes has a cutout for the target region, through which cutout the target contacts are directly connected to the signal-routing lines of readout electronics.Type: GrantFiled: March 14, 2011Date of Patent: April 26, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Peter Kämmerer, Thomas Reichel, Stefan Wirth