Spectrometer Components Patents (Class 324/318)
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Patent number: 12092712Abstract: The invention relates to a magnetic resonance coil array (30) of a magnetic resonance system having a distributed cable routing realized by a self-compensated radiofrequency choke (10). The magnetic resonance coil array (30) comprises multiple magnetic resonance receive coils (32), an input-output unit (34), and multiple coaxial cables (14) interconnecting the magnetic resonance receive coils (32) with the input-output unit (34). The coaxial cable (14) comprises the self-compensated radiofrequency choke (10). The self-compensated radiofrequency choke (10) allows to replace conventional bulky resonant radiofrequency traps used in conventional magnetic resonance coil arrays and allows implementing the distributed cable routing. The self-compensated radiofrequency choke (10) comprises a choke housing (12) having a toroidal form and the coaxial cable (14), wherein the coaxial cable (14) is wound around the choke housing (12) in a self-compensated winding pattern.Type: GrantFiled: June 18, 2021Date of Patent: September 17, 2024Assignee: Koninklijke Philips N.V.Inventors: Christoph Günther Leussler, Oliver Lips, Peter Venickel, Peter Caesar Mazurkewitz, Christian Findeklee, Ingo Schmale
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Patent number: 12085630Abstract: The invention relates to quality control devices and methods for magnetic resonance imaging (MRI) systems, more particularly for medical imaging applications. An example is stereotactic surgery where MRI images are combined with X-ray images to accurately locate a target in a subject. A test device (1), and an associated method using said test object, are used to easily detect a faulty calibration or a malfunction of an MRI device. The test device includes: a hermetically sealable hollow body (20) having a substantially cylindrical shape, a support frame (22) configured to be removably inserted in the hollow body and defining a target region (V22) having a substantially cylindrical shape; and a plurality of target objects (24) made of a material visible on X-ray images and MRI images said target objects being arranged in the target region and being attached to the support frame.Type: GrantFiled: August 6, 2020Date of Patent: September 10, 2024Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITE DE TOURS, CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE TOURSInventors: Christophe Destrieux, Laurent Barantin
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Patent number: 12085629Abstract: A passive MRI enhancing embodiment includes a plurality of resonators and increases signal-to-noise ratio of radiofrequency signals emitted by a specimen and captured by an MRI machine. The apparatus increases the magnetic field component of radiofrequency energy during signal transmission from the MRI machine to the specimen, and/or reception of signals from the specimen to the MRI machine. Use of the apparatus improves the images generated by the MRI machine, and/or reduces the time necessary for the MRI machine to capture the image. An isolator embodiment has a nonlinear resonator controllably configurable alternately into an isolation configuration and a transmission configuration, and a second resonator.Type: GrantFiled: December 8, 2021Date of Patent: September 10, 2024Assignee: Trustees of Boston UniversityInventors: Xin Zhang, Stephan Anderson, Xiaoguang Zhao, Guangwu Duan
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Patent number: 12070300Abstract: The invention provides for a medical instrument (100, 400, 500, 600, 900, 1000, 1100. 1200, 1400) comprising a magnetic resonance imaging system. The medical instrument comprises: a radio frequency system (116) configured for sending and receiving radio frequency signals to acquire magnetic resonance imaging data (302). The radio frequency system is configured for connecting to a magnetic resonance imaging antenna (114). The medical instrument further comprises a subject support (120) configured for supporting at least a portion of a subject (118) in an imaging zone (108) of the magnetic resonance imaging system. The subject support comprises an antenna connector (124) configured for connecting to the magnetic resonance imaging antenna. The radiofrequency system is configured for connecting to the magnetic resonance imaging antenna via the antenna connector.Type: GrantFiled: April 2, 2019Date of Patent: August 27, 2024Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Daniel Wirtz
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Patent number: 12072307Abstract: Embodiments described herein generally relate to systems, tools, and methods for flow assurance monitoring within pipe structures. In an embodiment is provided a method of determining at least one property of a mixture flowing through a system that includes introducing an inhibitor to a fluid flowing through the system to form the mixture; exposing the mixture to electromagnetic energy to induce at least one paramagnetic response from at least one diamagnetic species present in the mixture flowing through the system; performing electron paramagnetic resonance (EPR) spectroscopy on the at least one paramagnetic response to generate an EPR spectrum; and determining the at least one property of the mixture based on the EPR spectrum. Apparatus for determining fluid properties and systems for extracting hydrocarbons from a subterranean reservoir are also provided.Type: GrantFiled: September 15, 2022Date of Patent: August 27, 2024Assignee: MICROSILICON, INC.Inventors: John Lovell, Omar Kulbrandstad
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Patent number: 12072401Abstract: An electron paramagnetic resonance (EPR) spectrometer includes a magnet system comprising at least one magnet and at least one pole piece for producing a magnetic field along a pole axis in a field of view in front of the at least one pole piece. A probe head comprising a microwave resonator and at least one modulation coil or rapid scan coil produces an additional, time-varying magnetic field aligned along the pole axis. The probe head is arranged in the field of view, and a respective modulation coil or rapid scan coil is arranged between the microwave resonator and a respective pole piece. For each pole piece, at least a part of said pole piece is made of a function material having an electric conductivity ?f of 104 S/m or less, and having a saturation magnetic flux density BSf of 0.2 T or more.Type: GrantFiled: November 30, 2021Date of Patent: August 27, 2024Inventors: Ion Prisecaru, Lukas Haenichen
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Patent number: 12055607Abstract: A cable mantle for shield current suppression in a shielded cable includes a through hole for hosting the shielded cable; and a plurality of resonant elements; wherein each of the resonant elements includes an inner tube-shaped conductive structure; an outer tube-shaped conductive structure; a first transversal conductive structure; a second transversal conductive structure; and at least one capacitor bridging a gap between a first longitudinal portion of the outer tube-shaped conductive structure and a second longitudinal portion of the outer tube-shaped conductive structure, so that an electrical behavior of the inner tube-shaped conductive structure, the first longitudinal portion of the outer tube-shaped conductive structure, the second longitudinal portion of the outer tube-shaped conductive structure, the first transversal conductive structure, the second transversal conductive structure and the at least one capacitor is equivalent to a parallel resonant circuit defining a resonance frequency of the resType: GrantFiled: December 22, 2020Date of Patent: August 6, 2024Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Thomas Bertuch, Diego Betancourt, Jürgen Jenne, Matthias Guenther
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Patent number: 12055608Abstract: A method for autonomously cooling down a cryogen-free superconductive magnetic coil system includes: (a1) measuring the current temperature Tactual at the magnet and comparing it to a temperature target value T1target; (a2) if Tactual>T1target, actuating a vacuum pump and opening a barrier valve in a vacuum conduit that leads from the vacuum pump into a vacuum vessel containing the magnet; (b1) measuring the current pressure Pactual in the vacuum vessel and comparing it to a pressure target value P1target; (b2) if Pactual<P1target, activating a cold head for cooling a cooling arm; (c1) measuring Tactual and comparing it to the first temperature target value T1target; (c2) if Tactual<T1target, closing the barrier valve and switching off the vacuum pump; (d1) measuring Tactual and comparing it to a second temperature target value T2target and maintaining the second temperature target value T2target.Type: GrantFiled: June 2, 2022Date of Patent: August 6, 2024Inventor: Marco Strobel
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Patent number: 12045956Abstract: A magnetic resonance (MR) imaging method of correcting nonuniformity in diffusion-weighted (DW) MR images of a subject is provided. The method includes applying a DW pulse sequence along a plurality of diffusion directions with one or more numbers of excitations (NEX), and acquiring a plurality of DW MR images of the subject along the plurality of diffusion directions with the one or more NEX. The method also includes deriving a reference image and a base image based on the plurality of DW MR images, generating a nonuniformity factor image based on the reference image and the base image, and combining the plurality of DW MR images into a combined image. The method also includes correcting nonuniformity of the combined image using the nonuniformity factor image, and outputting the corrected image.Type: GrantFiled: June 4, 2021Date of Patent: July 23, 2024Assignee: GE PRECISION HEALTHCARE LLCInventors: Lei Gao, Juan Gao, Gaohong Wu, Yongchuan Lai
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Patent number: 12046533Abstract: It is an object to provide a technique allowing for suppression of the height of a protrusion from the surface of a semiconductor module. A semiconductor device includes: a semiconductor module having a first groove; a Belleville washer having a recess in an outer surface and a protrusion on an inner surface; and a screw passing through the hole of the Belleville washer and the first groove of the semiconductor module to fasten the semiconductor module and an attached body. A head of the screw is accommodated in the recess of the Belleville washer, and at least portion of the protrusion of the Belleville washer is accommodated in the first groove of the semiconductor module.Type: GrantFiled: June 25, 2019Date of Patent: July 23, 2024Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Takayama, Takaaki Shirasawa, Mitsunori Aiko
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Patent number: 12040130Abstract: In a superconducting coil used in an MRI apparatus, it is necessary to arrange a superconducting wire at a desired position to obtain a desired coil shape in order to obtain a temporally stable static electromagnetic field with high strength and high uniformity. A superconducting coil includes a winding frame, a spacer disposed on an outer periphery of winding frame and including a winding groove having a spiral shape and a communication groove provided between winding grooves, and includes a coil group having a superconducting wire wound in winding groove. It is therefore possible to obtain superconducting coil having a desired coil shape.Type: GrantFiled: January 21, 2020Date of Patent: July 16, 2024Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Kota Nomura, Shoichi Yokoyama, Tetsuya Matsuda
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Patent number: 12025684Abstract: RF coil assemblies are disclosed that include multiturn loops formed of conductors configured to receive RF signals from a patient during MRI. The multiturn loops include an inner loop and an outer loop that both lie substantially in a plane of the RF coil assembly. The inner loop is at least partially nested within the outer loop.Type: GrantFiled: August 3, 2022Date of Patent: July 2, 2024Assignee: ViewRay Systems, Inc.Inventors: Thomas Chmielewski, Steven Koenig
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Compression sleeve structure for mounting magnets in downhole nuclear magnetic resonance application
Patent number: 12018538Abstract: Aspects of the subject technology relate to securing magnets within a nuclear magnetic resonance (“NMR”) tool in a manner that prevents damage or disturbance of the magnets due to the drilling environment, and more particularly, to creating a chamber within the structure of a logging while drilling (“LWD”) tool to isolate the magnets from certain external conditions. A downhole tool comprises a tool collar with a recessed portion comprising a collar mandrel section and a threaded segment, wherein the recessed portion of the tool collar comprises at least one cavity configured to accept one or more carriers configured to hold one or more magnets, a compression sleeve covering the recessed portion and the at least one cavity of the downhole tool; and a compression sub component mated to the threaded segment and configured to compress the compression sleeve toward the shoulder of the unrecessed portion of the tool collar.Type: GrantFiled: March 22, 2023Date of Patent: June 25, 2024Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: Brian Breaux, Boguslaw Wiecek -
Patent number: 12019129Abstract: An NMR probehead having a transceiver coil arrangement comprises at least one transceiver coil for generating an HF B1 magnetic field, the transceiver coil having a connection region and at least one electrical conductor portion with a forward winding portion that leads in a prespecified winding direction from the connection region to an axial end. A backward winding portion leads in the same winding direction, from the axial end to the connection region, with windings having a pitch P with the opposite sign to windings of the forward winding portion. The forward and backward windings, with the exception of crossover regions in which the forward and backward windings cross over each other, are arranged on the same cylindrical surface about a longitudinal axis Z?. With the invention, electric fields visible for the sample are reduced, together with other types of performance losses.Type: GrantFiled: June 29, 2023Date of Patent: June 25, 2024Inventor: Nicolas Freytag
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Patent number: 12016704Abstract: A patient couch for use in a medical imaging system that includes a gantry, a power supply unit and a driving unit for positioning the patient couch with respect to the gantry. The patient couch includes at least a first connector for supplying a wireless coil (e.g., a radio frequency (RF) coil for an MRI imaging apparatus) with power. The patient couch is detachably connected to the gantry. The power supply is configured to supply the first connector with power and an optional clock synchronization signal.Type: GrantFiled: March 22, 2022Date of Patent: June 25, 2024Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Mark Spring, Yoshinori Hamamura, Kazuya Okamoto, Sojiyuuro Kato, Kazuyuki Soejima
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Patent number: 12009140Abstract: An integrated stack transformer is provided, wherein the integrated stack transformer includes a first winding, a second winding and a third winding implemented by a first metal layer, and a fourth winding and a fifth winding implemented by a second metal layer. The second winding is positioned between the first winding and the third winding, the fourth winding substantially overlaps the first winding, the fifth winding substantially overlaps the third winding, and a distance between the fifth winding and the fourth winding is less than a distance between the third winding and the first winding. The first winding, the third winding, the fourth winding and the fifth winding form a part of one of a primary inductor and a secondary inductor of the integrated stack transformer, and the second winding is a part of the other of the primary inductor and the secondary inductor.Type: GrantFiled: December 8, 2020Date of Patent: June 11, 2024Assignee: Realtek Semiconductor Corp.Inventors: Kai-Yi Huang, Cheng-Wei Luo, Chieh-Pin Chang, Ta-Hsun Yeh
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Patent number: 12007522Abstract: Disclosed is a detection sensor for detecting the presence of an item of user equipment through near-field communication for a motor vehicle, the sensor including an antenna, an impedance matcher, a driver module for driving the antenna and a microcontroller, which is configured to control the driver module, the impedance matcher being able to match the output impedance of the driver module to the impedance of the antenna while amplifying the power supplied by the driver module. The sensor includes a resistive module, mounted between the driver module and the impedance matcher, configured to stabilize the value of the input power of the impedance matcher.Type: GrantFiled: October 25, 2019Date of Patent: June 11, 2024Assignee: VITESCO TECHNOLOGIES GMBHInventor: Xavier Hourné
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Patent number: 12007456Abstract: A method and apparatus for limiting an RF alternating magnetic field in MRI. The method includes: measuring a perpendicular distance between a local coil placed on a scanned part of a patient and the center of a detection hole of a magnetic resonance (MR) scanner; based on the perpendicular distance, determining a deviation between the B1 field strength at the position of the local coil during an MR scan and the B1 field strength at the center of the detection hole; based on the deviation, computing a conversion coefficient for conversion between the B1 field strength at the position of the local coil and the B1 field strength at the center of the detection hole; based on the B1 field strength required when the surface temperature of the local coil is equal to a safe temperature upper limit and the conversion coefficient, computing a maximum permissible field strength of the B1 field at the center of the detection hole.Type: GrantFiled: December 12, 2022Date of Patent: June 11, 2024Assignee: Siemens Healthineers AGInventors: Ying Lun Wang, Qiu Yi Zhang, Zhi Bin Li
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Patent number: 12005004Abstract: Arrangements described herein relate to a headset system and a method to manufacturing the headset system, the headset system including a headset configured to lay on top of a surface and to support a head of a subject when the subject is in a supine position or a reclined position, at least one probe adjustment mechanism, and a probe coupled to the at least one probe adjustment mechanism and configured to emit acoustic energy.Type: GrantFiled: November 28, 2022Date of Patent: June 11, 2024Assignee: Neurasignal, Inc.Inventors: Jan B. Zwierstra, Trevor Dunlop, Lane Stith, Gerard Salinas
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Patent number: 12000279Abstract: A method for deriving at least one pore or fluid relaxation parameter and endpoint selected from the group consisting of a longitudinal T1 pore surface relaxivity constant (?1), a transverse T2 pore surface relaxivity constant (?2), a pore surface-to-volume ratio (A/V), an equivalent pore-throat radius (req), and a bulk fluid relaxation time (TB) comprising: identifying modes in NMR T1-T2 data; assigning the modes to a poro-fluid class; clustering the modes based on poro-fluid class; estimating TB based on an asymptote fit of the clusters using T1 and T2 relaxation mechanisms in a bulk fluid relaxation-dominated limit; estimating ?2/?1 based on an asymptote fit of the clusters using T1 and T2 relaxation mechanisms in a surface relaxation-dominated limit; fitting the T1 and T2 relaxation mechanisms to the clusters using the estimated TB; and deriving the pore or fluid relaxation parameter and endpoint for the poro-fluid classes from the fit.Type: GrantFiled: August 14, 2020Date of Patent: June 4, 2024Assignee: ExxonMobil Technology and Engineering CompanyInventors: Olabode Ijasan, Darren M. McLendon
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Patent number: 12000913Abstract: An NMR probe head has a transceiver coil arrangement with a first transceiver coil for generating a first RF magnetic field B1, wherein the first transceiver coil comprises an electrical conductor having multiple windings about a longitudinal axis Z?, and wherein the electrical conductor of the first transceiver coil is designed as a strip-shaped conductor with a conductor width W that decreases at least twice and increases at least twice within each winding. The NMR probe head thereby has a transceiver coil that has maximum quality factor with simultaneous transparency to other RF magnetic fields that may be radiated.Type: GrantFiled: June 29, 2023Date of Patent: June 4, 2024Inventor: Nicolas Freytag
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Patent number: 11994569Abstract: A radio frequency coil assembly for an MRI system. A support structure extends between a first end and a second end in a first direction and between an inner surface and an opposite outer surface in a second direction perpendicular to the first direction. The support structure has channels that extend into the support structure in the second direction. An RF coil is configured to transmit and/or receive RF signals. The RF coil is supported by the outer surface of the support structure. The channels are at least partially positioned between the support structure and the RF coil in the first direction and are configured to convey a cooling medium to cool the support structure in use.Type: GrantFiled: September 13, 2022Date of Patent: May 28, 2024Assignee: GE Precision Healthcare LLCInventors: Edwin L. Legall, Louis J. Vannatta, Gaines Hartley, William J. Bonneau, Thomas K. Foo, Dan K. Spence
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Patent number: 11994567Abstract: A magnetic resonance imaging antenna (114) comprising one or more coil elements (115) is disclosed. The magnetic resonance imaging antenna further comprises a radio frequency system (116) coupled to the one or more coil elements. The magnetic resonance imaging antenna further comprises a gas inlet (200) configured for receiving a pressurized gas. The magnetic resonance imaging antenna further comprises a gas outlet (202) configured for venting the pressurized gas. The magnetic resonance imaging antenna further comprises an electrical generator (117) configured for converting mechanical energy resulting from passing the pressurized gas from the gas inlet to the gas outlet into electricity while in the presence of an external magnetic field. The electrical generator is configured to power the radio frequency system using the electricity.Type: GrantFiled: April 28, 2020Date of Patent: May 28, 2024Assignee: Koninklijke Philips N.V.Inventors: Bernhard Gleich, Steffen Weiss
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Patent number: 11994568Abstract: A local coil of an embodiment includes a flat carrier body, at least one ventilation opening, and an antenna array for receiving RF signals in the frequency and power range of a magnetic resonance device. The flat carrier body is made of a reversibly deformable material and is moldable to the patient's shape. An embodiment of the invention further relates to a magnetic resonance system including a magnetic resonance device, a local coil and an electrical connecting cable. A method additionally relates to a method of manufacturing the local coil. A tool is further for use in a manufacturing process of a local coil.Type: GrantFiled: May 25, 2021Date of Patent: May 28, 2024Assignee: Siemens Healthineers AGInventors: Stephan Zink, Thomas Kundner
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Patent number: 11986282Abstract: A magnetic resonance (MR) imaging system, comprising a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging, and a sensor configured to detect electromagnetic interference conducted by a patient into an imaging region of the MR imaging system. The sensor may comprise at least one electrical conductor configured for electrically coupling to the patient. The MR imaging system may further comprise a noise reduction system configured to receive the electromagnetic interference from the sensor and to suppress electromagnetic interference in detected MR signals received by the MR imaging system based on the electromagnetic interference detected by the sensor.Type: GrantFiled: October 7, 2020Date of Patent: May 21, 2024Assignee: Hyperfine Operations, Inc.Inventors: Hadrien A. Dyvorne, Laura Sacolick, Carole Lazarus, Eddy B. Boskamp, Jeremy Christopher Jordan
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Patent number: 11990772Abstract: A wireless power transfer system includes a wireless power transfer device. The wireless power transfer device includes a first transmitting coil oriented along a first axis; a second transmitting coil on the first transmitting coil and oriented along a second axis different from the first axis; and a nonmagnetic material magnetically decoupling the first transmitting coil from the second transmitting coil in an area of overlap between the first and second transmitting coils.Type: GrantFiled: November 2, 2021Date of Patent: May 21, 2024Assignee: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCHInventors: Brian R. Dearden, Justin Cheng-Tsu Loo
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Patent number: 11957510Abstract: Arrangements described herein relate to a headset. The headset includes a device. The device includes a transducer configured to interact with a head of a subject. The headset further includes a manually-operated registration system configured to delineate a workspace of the transducer at the head of the subject.Type: GrantFiled: August 31, 2022Date of Patent: April 16, 2024Assignee: Neurasignal, Inc.Inventors: Jan Zwierstra, Trevor Dunlop, Lane Stith
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Patent number: 11955230Abstract: Described herein are database systems including one or more remote analytical instruments operably connected to one or more servers. The instruments can transmit rich data to the servers, and the one or more servers can compile a database of the rich data. One or more processors associated with the servers can be configured to execute a data analytics program on the database to identify a stochastic phenomenon or to process the data and present in real-time at a location of the one or more instruments comparison information about the instruments.Type: GrantFiled: December 1, 2021Date of Patent: April 9, 2024Assignee: Beckman Coulter, Inc.Inventor: Martha C. Davis
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Patent number: 11948736Abstract: A superconducting magnet system having two-stage quenching. A primary coil assembly includes a coil section configured to be superconducting when conducting current below a first critical current. An EMI shielding coil assembly includes a coil section configured to be superconducting when conducting current below a second critical current, which is electrically coupled to a variable resistor configured to be superconducting when conducting current below a third critical current and to be non-superconducting when conducting current at or above the third critical current that is less than both the first and second critical currents. Generating a magnetic flux within the EMI shielding coil assembly causes the current conducted through the variable resistor to exceed the third critical current, quenching the variable resistor and generating heat. The EMI shielding coil assembly is disposed such that the heat from the variable resistor quenches the primary coil assembly.Type: GrantFiled: April 6, 2022Date of Patent: April 2, 2024Assignee: GE Precision Healthcare LLCInventors: Zhenyu Zhang, Stuart Paul Feltham
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Patent number: 11946991Abstract: Provided is a device for acquiring a magnetic resonance image signal includes a plurality of top-hat dipole antennas having a length and an operating frequency which are adjustable depending on an image region and an antenna circuit module to adjust the operating frequency. The top-hat dipole antenna includes a pair of antenna leg parts linearly arranged while being spaced apart from each other, and a pair of top-hat parts provided at opposite distal ends of the antenna leg part to increase a current at the distal end of the antenna leg part by increasing a capacitance.Type: GrantFiled: December 1, 2020Date of Patent: April 2, 2024Assignee: Korea University Research and Business Foundation, Sejong CampusInventors: Changhyun Oh, Suchit Kumar, Jongmin Kim, Junsik Yoon
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Patent number: 11940513Abstract: A magnetic resonance tomography unit and a method for operating the magnetic resonance tomography unit are provided. The magnetic resonance tomography unit has a transmission interference suppression device with a transmission interference suppression control system, a sensor, and a transmission interference suppression antenna. The transmission interference suppression device is configured to acquire, with the sensor, an excitation signal of the transmitter, and determine, with the transmission interference suppression control system, a transmission interference suppression signal dependent upon the acquired excitation signal of the transmitter. The transmission interference suppression device is configured to transmit, via the transmission interference suppression antenna, the transmission interference suppression signal, so that at a predetermined location outside the magnetic resonance tomography unit, the excitation signal emitted by the transmitter via the transmitter antenna is attenuated.Type: GrantFiled: September 15, 2021Date of Patent: March 26, 2024Assignee: Siemens Healthineers AGInventors: Stephan Biber, Jürgen Nistler, Markus Vester
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Patent number: 11940515Abstract: A system, method, and computer-readable medium for evaluating structural integrity of a gradient coil disposed in a magnetic resonance imaging system is provided. A sensor obtains a parameter reading of the gradient coil, wherein the parameter reading includes a back electromotive force (back EMF) measurement. The structural integrity of the gradient coil is determined as function of the back EMF measurement.Type: GrantFiled: January 28, 2022Date of Patent: March 26, 2024Assignee: GE PRECISION HEALTHCARE LLCInventors: Garrett William Astary, Derek Seeber, Andrew John Panos
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Patent number: 11933868Abstract: A magnetic resonance tomography system that includes a transmitter for generating an excitation signal and a body coil for emitting the excitation signal, and a method for operation of the magnetic resonance tomography system are provided. The magnetic resonance tomography system has a patient tunnel, in which the body coil is arranged. The magnetic resonance tomography system also has a first transmission interference suppression antenna that is arranged between the body coil and an opening in the patient tunnel. The first transmission interference suppression antenna is configured to provide a spatial transmission characteristic that may be compared with the body coil.Type: GrantFiled: November 4, 2021Date of Patent: March 19, 2024Assignee: Siemens Healthcare GmbHInventors: Jürgen Nistler, Markus Vester
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Patent number: 11931137Abstract: In variants, a method for signal enhancement includes: sampling a set of measurements of a signal source; and determining a SNR-enhanced signal based on the measurements, which, in variants, can include recursively cross-correlating elements for d iterations S200; and determining a SNR-enhanced signal from the cross-correlation outputs. The method functions to determine a SNR-enhanced signal representative of the signal source. The method can optionally include determining an analyte parameter based on the SNR-enhanced signal.Type: GrantFiled: April 1, 2022Date of Patent: March 19, 2024Assignee: Synex Medical Inc.Inventors: Benjamin Saul Nashman, Sean Kentaro Sullivan Takahashi, Abenezer Teklemariam
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Patent number: 11933872Abstract: A phantom for calibration and quality assurance of an MR tomograph that comprises a phantom body with measuring aids and an intermediate bottom in at least four planes. The first plane contains only measuring fluid. The second plane contains wedge-shaped elements. The third plane contains marks of known distance. The fourth plane contains comb-shaped elements. The measuring aids of the second plane are arranged on one side of the intermediate bottom and those of the fourth plane on the other side. The marks of the third plane are arranged in the intermediate bottom. This arrangement enables reliable calibration of the MR tomograph in a few steps with only this phantom.Type: GrantFiled: February 25, 2020Date of Patent: March 19, 2024Assignee: MRI-STaR—Magnetic Resonance Institute for Safety, Technology and Research GmbHInventors: Gregor Schaefers, Tobias Spronk
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Patent number: 11937362Abstract: A charged particle acceleration device, which eliminates the need for repeating alignment adjustment even in the case of repeating installation of the controllers, is provided, and a method for adjusting the same is provided. A charged particle acceleration device 10A includes: controllers 15,15a,15b,15c configured to control a beam trajectory 12 of charged particles that pass through a duct 11 to be inserted through the controllers 15; and a stage 20 that is supported by a frame 16 fixed to a base and reversibly moves the controllers 15 in a direction of intersecting the beam trajectory 12.Type: GrantFiled: September 10, 2021Date of Patent: March 19, 2024Assignees: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, TOSHIBA PLANT SYSTEMS & SERVICES CORPORATIONInventors: Kunihiko Kinugasa, Hiromasa Itou, Takeshi Takeuchi, Yoshiharu Kanai
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Patent number: 11921067Abstract: A method of diagnosing a conducting structure includes providing the conducting structure in a magnetic field, immersing the conducting structure in a detection medium, or placing a detection medium in the vicinity of the conducting structure, exciting nuclear or electronic spins within the detection medium using a broad-band excitation pulse, receiving an NMR or ESR spectrum from the detection medium, obtaining a frequency distribution of the detection medium, and indirectly measuring internal characteristics of the conducting structure by characterizing frequency changes in the frequency distribution. Conducting structures are analyzed on the basis of changes in magnetic susceptibilities and internal electric current distributions, which may change over the course of a charging/discharging cycle, and a result of degradation and failure of the conducting structure. The conducting structure may be, for example, a battery, a capacitor, a supercapacitor, a fuel cell, or a catalyst material.Type: GrantFiled: June 6, 2019Date of Patent: March 5, 2024Assignee: New York UniversityInventors: Alexej Jerschow, Andrew J. Ilott, Mohaddese Mohammadi, Emilia Silletta, Konstantin Romanenko
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Patent number: 11921177Abstract: An electronic device (10) includes an electronic component (14); at least one electrically conductive loop or winding (18) disposed around the electronic component; and an electronic controller (24) configured to: obtain (102) a magnetic field direction from a received ambient magnetic field measurement signal; determine (104) at least one magnetic field shim current based on the obtained magnetic field direction; and energize (106) the at least one electrically conductive loop or winding to flow the determined at least one magnetic field shim current.Type: GrantFiled: October 27, 2020Date of Patent: March 5, 2024Assignee: Koninklijke Philips N.V.Inventors: Arne Reykowski, Alton Keel, Timothy Ortiz, Scott King, Rodrigo Calderon Rico, Paul Franz Redder
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Patent number: 11899089Abstract: A phantom calibration body (110) for a method for determining at least one quantitative diffusion parameter extracted for characterization of a tissue being suspicious to a tumorous modification in magnetic resonance imaging is disclosed, wherein the phantom calibration body (110) is designed for being characterized during characterization of the tissue by the magnetic resonance imaging. Herein, the phantom calibration body (110) comprises a first compartment (112) having a first cross-section, the first compartment (112) being filled with a first solution comprising a calibration substance having a first concentration; and a second compartment (114) having a second cross-section, the second cross-section having at least two different partitions with differing diameters, wherein the second compartment (114) is filled with a second solution comprising the calibration substance having a second concentration, the second concentration differing from the first concentration.Type: GrantFiled: January 24, 2019Date of Patent: February 13, 2024Assignee: Deutsches KrebsforschungszentrumInventors: Sebastian Bickelhaupt, Tristan Anselm Kuder
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Patent number: 11896344Abstract: The present disclosure relates to plasma generation systems which utilize plasma for semiconductor processing. The plasma generation system disclosed herein employs a hybrid matching network. The plasma generation system includes a RF generator and a matching network. The matching network includes a first-stage to perform low-Q impedance transformations during high-speed variations in impedance. The matching network includes a second-stage to perform impedance matching for high-Q impedance transformations. The matching network further includes a sensor coupled to the first-stage and the second-stage to calculate the signals that are used to engage the first and second-stages. The matching network includes a first-stage network that is agile enough to tune each state in a modulated RF waveform and a second-stage network to tune a single state in a RF modulated waveform. The plasma generation system also includes a plasma chamber coupled to the matching network.Type: GrantFiled: March 1, 2023Date of Patent: February 13, 2024Assignee: COMET TECHNOLOGIES USA, INC.Inventors: Anthony Oliveti, Tigran Poghosyan
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Patent number: 11899345Abstract: A telescoping, anti-glare, weather-resistant, opaque, corrugated, compressible and retractable pipe shield blocks glare on smartphone or wearable action camera viewing screens. The pipe shield totally blocks glare on the display screen in real-time, moment to moment. To protect the camera from weather elements, the camera is inserted in a holding frame. The camera holding frame is mounted upon a handheld camera grip, adjacent to the distal end of the flexible pipe shield. The pipe shield may be extended or retracted via its corrugated folds. Optionally, a user-worn headband holds a cantilevered frame supporting a wearable action camera, adjacent to the distal end of the opaque, tubular, corrugated pipe shield, before the user's eyes. The user can record videos and stills during athletic or recreational activities, such as mountain climbing or skateboarding. The smartphone camera or the wearable action camera is activated by hand-controlled Bluetooth/Wi-Fi signals or via voice activation software.Type: GrantFiled: July 21, 2023Date of Patent: February 13, 2024Inventor: Robert Sabin
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Patent number: 11899084Abstract: A magnetic resonance imaging device may include a field generator for generating at least one magnetic gradient field. The field generator may include a first magnet and a second magnet confining an imaging volume of the magnetic resonance imaging device in two spatial directions. The first magnet and the second magnet may be arranged asymmetrically with respect to the imaging volume. The magnetic resonance imaging device may be used to perform a method for acquiring an image of a diagnostically relevant body region of a patient.Type: GrantFiled: March 28, 2022Date of Patent: February 13, 2024Assignee: Siemens Healthcare GmbHInventors: Michael Mallett, Adrian Mark Thomas, Matthias Gebhardt, Stephan Biber, Andreas Krug, Stefan Popescu, Lars Lauer, Andreas Greiser
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Patent number: 11903176Abstract: An electromagnetic emission shield for protecting a facility having a volume comprised of coal combustion residue. The shield includes a carbon-based material positioned inside an interior space of the coal combustion residue proximate to and interposed between a potential source of electromagnetic emission and the facility.Type: GrantFiled: October 20, 2022Date of Patent: February 13, 2024Assignee: GO TEAM CCR, LLCInventors: Francis Norbert Hector, Jr., Davidson A. Scott
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Patent number: 11892531Abstract: Systems for a magnetic resonance antenna, an MR local coil, a magnetic resonance device, and a method of producing a magnetic resonance antenna. The magnetic resonance antenna includes at least one wire structure. The at least one wire structure is shaped such that an electrical voltage may be induced in the at least one wire structure by a magnetic resonance signal. The magnetic resonance antenna also includes at least one accommodating body in which the at least one wire structure is embedded, for example completely.Type: GrantFiled: August 20, 2021Date of Patent: February 6, 2024Assignee: Siemens Healthcare GmbHInventor: Stephan Zink
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Patent number: 11885856Abstract: Provided is a coil device capable of improving operability or durability thereof, being attached to a subject in a close contact state regardless of the size of a head of the subject, and obtaining a high-quality MRI image. The coil device includes at least one coil unit which has a coil element and a coil support portion which has a mechanism for attaching the coil unit to a head of a subject. The coil support portion includes a base portion, a support body which is connected to the base portion and has an elastic member, and a holder which connects the support body to the at least one coil unit and the holder has at least three contact points which are formed directly or indirectly with respect to the base portion.Type: GrantFiled: October 23, 2020Date of Patent: January 30, 2024Assignee: FUJIFILM HEALTHCARE CORPORATIONInventors: Kohjiro Iwasawa, Takanori Nishiyama, Kazuyuki Kato, Hideta Habara, Yosuke Otake, Satoshi Yamashita, Toru Shirai
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Patent number: 11877881Abstract: The present disclosure provides a system for active noise cancellation for a subject placed in a scanning bore of a medical imaging apparatus. The system may be directed to perform operations including obtaining a real-time position of each of at least one target portion of a subject; obtaining signals from one or more arrays of noise detection units surrounding the subject; and directing, based on the signals obtained from the one or more arrays of noise detection units, one or more arrays of denoising units to produce a sound to counteract noise at the real-time position of each of the at least one target portion of the subject.Type: GrantFiled: October 24, 2022Date of Patent: January 23, 2024Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventor: Lingzhi Hu
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Patent number: 11880986Abstract: A framework for gantry alignment of a multimodality medical scanner. First image data of a non-radioactive structure is acquired by using intrinsic radiation emitted by scintillator crystals of detectors in a first gantry of the multimodality medical scanner. Second image data of the non-radioactive structure is acquired using a second gantry for another modality of the multimodality medical scanner. Image reconstruction may be performed based on the first and second image data of the non-radioactive structure to generate first and second reconstructed image volumes. A gantry alignment transformation that aligns the first and second reconstructed image volumes may then be determined.Type: GrantFiled: June 9, 2021Date of Patent: January 23, 2024Assignee: Siemens Medical Solutions USA, Inc.Inventors: Paul Schleyer, Deepak Bharkhada, Harold E. Rothfuss, Mohammadreza Teimoorisichani, Dieter Ritter
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Patent number: 11872025Abstract: An apparatus for use in a magnetic resonance (MR) system for capturing an MR Elastography measurement of a biological lifeform may include a platform; a gel pad on a surface of the platform; and a sensor array. In some embodiments, the sensor array includes at least one ultrasound transducer, and at least one radiofrequency (RF) transmitter and receiver coil. The sensor array is at least partially embedded within the gel pad, and the gel pad is configured to provide mechanical impedance matching between the at least one ultrasound transducer and the biological lifeform. In some embodiments, a system includes the apparatus and an MR system, the MR system including an ultrasonic wave generator, an interface circuit, and a computing device. In some such embodiments, the ultrasonic wave generator is configured to generate one or more shear waves in the biological lifeform.Type: GrantFiled: March 17, 2017Date of Patent: January 16, 2024Assignee: Q Bio, Inc.Inventors: Jeffrey H. Kaditz, Andrew G. Stevens
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Patent number: 11876384Abstract: An illustrative example embodiment of a wireless power transfer device includes an inductor panel and a capacitor panel adjacent the inductor panel. The capacitor panel includes a first conductive plate adjacent one side of the inductor panel, a dielectric layer adjacent the first conductive plate, and a second conductive plate adjacent the dielectric layer on an opposite side of the dielectric layer from the first conductive plate.Type: GrantFiled: December 15, 2020Date of Patent: January 16, 2024Assignee: OTIS ELEVATOR COMPANYInventors: Ben Guo, Antonio Martins
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Patent number: 11874352Abstract: A peripheral device for a magnetic resonance tomography unit. The peripheral device includes a first sensor for receiving an electromagnetic data signal from the environment of the peripheral device. The peripheral device is configured to execute signal processing in dependence on the electromagnetic data signal and a frequency of the electromagnetic data signal is greater than a Larmor frequency of the magnetic resonance tomography unit.Type: GrantFiled: June 21, 2022Date of Patent: January 16, 2024Assignee: Siemens Healthcare GmbHInventors: Jan Bollenbeck, Peter Speier