Patents by Inventor Ewald Weber
Ewald Weber 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: 20240127432Abstract: A system and method for achieving more accurate results when applying an image processing task to a series of medical images of a patient, without significantly increasing processing resource. The proposed system and method is based on receiving a plurality of image sequences of a particular anatomical region, each capturing cyclical movement of an anatomical object. Each image sequence is supplied to a classifier module which employs use of one or more machine learning algorithms to derive at least one score for each image sequence indicative of predicted success or quality of a result of the image processing task if applied to the given image series. This permits an assessment to be made in advance of which of the plurality of image series is most likely to result in the best (e.g. highest quality, or greatest amount of information) results from the image processing task.Type: ApplicationFiled: January 24, 2022Publication date: April 18, 2024Inventors: Alexandra Groth, Tanja Lossau, Irina Waechter-Stehle, Frank Michael Weber, Jochen Peters, Sebastian Wild, Arne Ewald, Andre Goossen
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Publication number: 20230291111Abstract: A multi-modal antenna for use in magnetic resonance applications, the multi-modal antenna including an elongate first conductive element, an elongate second conductive element at least partially aligned with and spaced from the first conductive element and a dielectric material at least partially separating the first and second conducting elements so that the first and second conductive elements are electromagnetically coupled and/or electrically connected, and wherein at least one of the first and second conducting elements are configured to be electromagnetically coupled and/or electrically connected to an RF system so that the multi-modal antenna can at least one of transmit and receive RF electromagnetic signals for performing magnetic resonance imaging or spectroscopy.Type: ApplicationFiled: August 3, 2021Publication date: September 14, 2023Inventors: Feng LIU, Stuart CROZIER, Mingyan LI, Ewald WEBER, Aurélien DESTRUEL, Jin JIN
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Patent number: 11630174Abstract: A magnet suitable for use in a Magnetic Resonance Imaging (MRI) system. The magnet includes a magnet body having a bore extending therethrough along an axis of the body and a primary coil structure having at least four primary coils positioned along the axis. A first end coil is adjacent a first end of the bore of the magnet and a second end coil is adjacent a second end of the magnet. The first end coil and the second end coil are spaced apart by no more than 1000 mm and an imaging region produced by the primary coils is of a disk-type.Type: GrantFiled: November 22, 2019Date of Patent: April 18, 2023Inventors: Feng Liu, Riyu Wei, Ewald Weber
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Publication number: 20220128638Abstract: A magnet suitable for use in a Magnetic Resonance Imaging (MRI) system. The magnet includes a magnet body having a bore extending therethrough along an axis of the body and a primary coil structure having at least four primary coils positioned along the axis. A first end coil is adjacent a first end of the bore of the magnet and a second end coil is adjacent a second end of the magnet. The first end coil and the second end coil are spaced apart by no more than 1000 mm and an imaging region produced by the primary coils is of a disk-type.Type: ApplicationFiled: November 22, 2019Publication date: April 28, 2022Inventors: Feng Liu, Riyu Wei, Ewald Weber
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Patent number: 9977100Abstract: A coil arrangement for use in a magnetic resonance imaging system, the imaging system being for generating a magnetic imaging field in an imaging region, the coil arrangement including at least three coils for at least one of transmitting, receiving or transceiving an electromagnetic field, each coil being provided on a coil geometry and being substantially orthogonal.Type: GrantFiled: March 30, 2010Date of Patent: May 22, 2018Assignee: The University of QueenslandInventors: Stuart Crozier, Adnan Trakic, Ewald Weber, Bing Keong Li, Hua Wang
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Patent number: 9429634Abstract: A coil for a magnetic resonance imaging device consists of multiple coil elements arranged about an imaging space. Each coil element comprise radiating structures oriented at an angle to a tangent of the imaging space. Angling the radiating structures reduces mutual coupling between coil elements and enhances the penetration of the radio frequency field to the imaging space.Type: GrantFiled: April 7, 2009Date of Patent: August 30, 2016Assignee: University of QueenslandInventors: Stuart Crozier, Bing Keong Li, Feng Liu, Ewald Weber
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Publication number: 20150185298Abstract: The invention describes a method that provides a practical means of accurately estimating the electromagnetic fields and therefore the SAR (specific absorption rate) distributions of a subject in magnetic resonance imaging (MRI) scan. The disclosed method consists of several steps. If the coil information is unavailable during the patent imaging, the first step, generally performed before patient (or target) imaging, estimates the geometry of the radiofrequency (RF) coils. The second step estimates the patient-specific tissue volumes by deforming an appropriate reference with known tissue distribution from a database to the said target. Finally, the electromagnetic fields and the SAR distributions are calculated using numerical methods performed on the accurately estimated RF coils and patient-specific tissue volumes. The proposed method can be used for safe, accurate MR imaging at any magnetic field strengths, particular suitable for high-field applications.Type: ApplicationFiled: June 5, 2013Publication date: July 2, 2015Inventors: Stuart Crozier, Ewald Weber, Jin Jin, Feng Liu
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Patent number: 8754644Abstract: Apparatus for use in a magnetic resonance imaging system, the imaging system generating a magnetic imaging field in an imaging region (5), the apparatus including at least one coil for at least one of transmitting, receiving or transceiving an electromagnetic field, a field component (4) (such as a coil or a shield) and a drive (6) coupled to the field component for moving the field component (4) relative to the imaging region (5) to thereby modify the electromagnetic field during imaging process. The same concept can also be applied to nuclear imaging or nuclear spectroscopy apparatus.Type: GrantFiled: June 19, 2009Date of Patent: June 17, 2014Assignee: The University of QueenslandInventors: Adnan Trakic, Ewald Weber, Bing Keong Li, Stephen James Wilson, Wang Hua, Feng Liu, Stuart Crozier
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Patent number: 8390287Abstract: A Magnetic Resonance Imaging (MRI) phased array head coil (10) comprises an array of coils (1, 2, 3, 4) a decoupling circuit (7) and a decoupling base (14). Counter wound inductors from adjoining coils (1, 2, 3, 4) in the decoupling circuit (7) are interlaced to achieve mutual decoupling between adjoining coils. Each separate coil (1, 2, 3, 4) includes a pair of spaced parallel main conductors (12) located on opposite sides of a cylindrical space (5) enclosed by the coils (1, 2, 3, 4). The decoupling base (14) comprises two meandering conductor bases (8, 9) which are interlaced. Orthogonal main conductors (12) of the coil (1, 2, 3, 4) share a common conductor base (8, 9). The multiple crossings of the paths of the conductor bases (8, 9) reduces mutual coupling effects.Type: GrantFiled: March 26, 2008Date of Patent: March 5, 2013Assignee: The University of QueenslandInventors: Stuart Crozier, Bing Keong Li, Ewald Weber
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Publication number: 20120074935Abstract: A coil for a magnetic resonance imaging device consists of multiple coil elements arranged about an imaging space. Each coil element comprise radiating structures oriented at an angle to a tangent of the imaging space. Angling the radiating structures reduces mutual coupling between coil elements and enhances the penetration of the radio frequency field to the imaging space.Type: ApplicationFiled: April 7, 2009Publication date: March 29, 2012Inventors: Stuart Crozier, Bing Keong Li, Feng Liu, Ewald Weber
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Publication number: 20120068709Abstract: A coil arrangement for use in a magnetic resonance imaging system, the imaging system being for generating a magnetic imaging field in an imaging region, the coil arrangement including at least three coils for at least one of transmitting, receiving or transceiving an electromagnetic field, each coil being provided on a coil geometry and being substantially orthogonal.Type: ApplicationFiled: March 30, 2010Publication date: March 22, 2012Inventors: Stuart Crozier, Adnan Trakic, Ewald Weber, Bing keong Li, Hua Wang
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Publication number: 20110210735Abstract: Apparatus for use in a magnetic resonance imaging system, the imaging system generating a magnetic imaging field in an imaging region (5), the apparatus including at least one coil for at least one of transmitting, receiving or transceiving an electromagnetic field, a field component (4) (such as a coil or a shield) and a drive (6) coupled to the field component for moving the field component (4) relative to the imaging region (5) to thereby modify the electromagnetic field during imaging process. The same concept can also be applied to nuclear imaging or nuclear spectroscopy apparatus.Type: ApplicationFiled: June 19, 2009Publication date: September 1, 2011Applicant: THE UNIVERSITY OF QUEENSLANDInventors: Adnan Trakic, Ewald Weber, Bing Keong Li, Stephen James Wilson, Wang Hua, Feng Liu, Stuart Crozier
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Publication number: 20100182009Abstract: A Magnetic Resonance Imaging (MRI) phased array head coil (10) comprises an array of coils (1, 2, 3, 4) a decoupling circuit (7) and a decoupling base (14). Counter wound inductors from adjoining coils (1, 2, 3, 4) in the decoupling circuit (7) are interlaced to achieve mutual decoupling between adjoining coils. Each separate coil (1, 2, 3, 4) includes a pair of spaced parallel main conductors (12) located on opposite sides of a cylindrical space (5) enclosed by the coils (1, 2, 3, 4). The decoupling base (14) comprises two meandering conductor bases (8, 9) which are interlaced. Orthogonal main conductors (12) of the coil (1, 2, 3, 4) share a common conductor base (8, 9). The multiple crossings of the paths of the conductor bases (8, 9) reduces mutual coupling effects.Type: ApplicationFiled: March 26, 2008Publication date: July 22, 2010Applicant: The University of QueenslandInventors: Stuart Crozier, Bing Keong Li, Ewald Weber
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Patent number: 3978624Abstract: Means for terminating the infeed of a machine tool, particularly a grinder. An electrode is imbedded within the tool and is exposed at the active surface thereof, such as the grinding surface of a grinder, and a sensing voltage is placed between said electrode and the workpiece. Suitable switching means is placed within the circuit of said electrode and workpiece which switching means will be activated upon the occurrence of a spark between said electrode and the workpiece. Activation of said switching means then activates further means to terminate the infeed of the tool. The circuitry supplying the voltage aforesaid may include a transformer having a plurality of output taps by which a plurality of voltages may be applied between the electrode and the workpiece and such circuitry will in such case include switching means automatically responsive to said different selected voltages.Type: GrantFiled: May 7, 1975Date of Patent: September 7, 1976Assignee: Werkzeugmaschinenfabrik Adolf Waldrich CoburgInventors: Rudolf Merkel, Friedrich Schnell, Ewald Weber
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Patent number: 3933178Abstract: A metering apparatus for liquids containing granular solids, in particular lapping liquid. The stream of liquid issuing from the feed pipe is conveyed with a wide area against a substantially vertical wall, to run down thereon in the form of a thin film of uniform thickness. The collecting pipe is arranged on the side of the wall which is remote from the liquid film. The wall has an orifice therethrough in its lower zone for the free end of the collecting pipe which extends obliquely upwardly. The collecting opening has a cross section which widens with progressive movement of the collecting pipe through the orifice.Type: GrantFiled: September 9, 1974Date of Patent: January 20, 1976Assignee: Werkzeugmaschinenfabrik Adolf Waldrich CoburgInventors: Edmund Eich, Ewald Weber, Heinz Gerner, Rudolf Merkel