Spectrometer Components Patents (Class 324/318)
  • Patent number: 10928470
    Abstract: An image acquisition system (100, 500, 600, 700). The image acquisition system may include at least one processor (110, 502-2, 610, 710) configured to control: a transmitter (112, 612) to form packets for transmission over a high-data-rate (HDR) wireless communication link (HDR-WCL) (124, 624), an image acquisition device (120, 631) to acquire image data and form HDR data, and a scheduler (114, 614) to acquire control information for controlling at least one function of the image acquisition system during the image acquisition, determine a restricted packet size for the packets of the HDR-WCL in accordance with at least deterministic timing requirements of the system, and determine a schedule for transmitting the control information in a corresponding packet of the packets in accordance with the deterministic timing requirements of the image acquisition system and the restricted packet size.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: February 23, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Paul Franz Redder, Arne Reykowski, Timothy Ortiz, George Randall Duensing
  • Patent number: 10925510
    Abstract: Magnetic resonance imaging utilizing a continuous spoiled gradient echo sequence with 3D radial trajectory and 1D self-gating for respiratory motion detection can be used to characterize respirator motion in the abdomen. The resulting image data is acquired and is retrospectively sorted into different respiratory phases based on their temporal locations within a respiratory cycle, and each phase is reconstructed via a self-calibrating conjugate gradient sensitivity encoding (CG-SENSE) program.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 23, 2021
    Assignee: Cedars-Sinai Medical Center
    Inventors: Zhaoyang Fan, Jianing Pang, Zixin Deng, Debiao Li
  • Patent number: 10928477
    Abstract: In a method and a magnetic resonance apparatus for generating movement information relating to an examination region of a patient, a reception circuit is provided that receives MR signals within a reception frequency range. An electromagnetic signal is generated that has a first frequency that is outside the reception frequency range of the reception circuit, and that interacts with at least some of the examination region, so the electromagnetic signal undergoes a modification. A modulated signal based on the modified first signal is generated that has a frequency within the reception frequency range. The modulated signal is transmitted to the reception circuit, and is forwarded to a computer, wherein movement information is determined based on the modulated signal.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: February 23, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Peter Speier, Markus Vester, Karsten Wicklow
  • Patent number: 10921400
    Abstract: Various methods and systems are provided for a flexible, lightweight, low-cost radio frequency (RF) coil array of a magnetic resonance imaging (MRI) system. In one example, a posterior RF coil assembly for a MRI system includes an RF coil array including a plurality of RF coils and a deformable material housing the plurality of RF coils, each RF coil comprising a loop portion of distributed capacitance wire conductors and a coupling electronics unit coupled to each of the plurality of RF coils.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: February 16, 2021
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Heather Fuqua, Victor Taracila, Mark Giancola, Robert Stormont
  • Patent number: 10921402
    Abstract: A magnetic resonance (MR) imaging system includes a transmit radio frequency (RF) coil assembly comprising multiple capacitor banks each coupled to at least one diode that is characterized by a high breakdown voltage such that when the transmit RF coil assembly applies at least one slice-selecting RF pulse to a portion of a subject placed in the magnet to select a particular slice for MR imaging, the capacitor banks are selectively adjusted to improve an RF transmission characteristics of the RF coil assembly in transmitting the at least one slice-selecting RF pulse. The MR imaging system may further include a receive radio frequency (RF) coil assembly configured to, in response to at least the slice-selecting RF pulse, receive at least one response radio frequency (RF) pulse emitted from the selected slice of the portion of the subject; a housing; a main magnet; gradient coils; and a control unit.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: February 16, 2021
    Assignee: Synaptive Medical Inc.
    Inventor: Ian Robert Oliphant Connell
  • Patent number: 10912517
    Abstract: Aspects relate to providing radio frequency components responsive to magnetic resonance signals. According to some aspects, a radio frequency component comprises at least one coil having a conductor arranged in a plurality of turns oriented about a region of interest to respond to corresponding magnetic resonant signal components. According to some aspects, the radio frequency component comprises a plurality of coils oriented to respond to corresponding magnetic resonant signal components. According to some aspects, an optimization is used to determine a configuration for at least one radio frequency coil.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: February 9, 2021
    Assignee: Hyperfine Research, Inc.
    Inventors: Michael Stephen Poole, Gregory L. Charvat, Todd Rearick, Jonathan M. Rothberg
  • Patent number: 10914801
    Abstract: In a method, device and digital receiver for transmitting signals in magnetic resonance imaging, M channels of digital signals are received over M receiving channels from a digital matrix processor. One receiving channel corresponds to one channel of digital signal and the M channels of digital signals include one channel of main signal and (M?1) channels of high-order signals. The M channels of digital signals are combined into N channels of combined signals, wherein the main signal and at least one channel of high-order signal are combined into one channel of combined signal, or at least two channels of high-order signals are combined into one channel of combined signal. N and M are both positive integers, N is less than M, and M is greater than or equal to 2.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 9, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Jin Qiang He, Guang Bao Dai
  • Patent number: 10908241
    Abstract: The invention relates to a gradient coil unit comprising a first conductor structure arranged on a surface of a first cylinder with the first radius, a second conductor structure arranged on a surface of a second cylinder with the second radius and a third conductor structure arranged on a surface of a third cylinder with the third radius, wherein the first radius is smaller than the second radius and the second radius is smaller than the third radius.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 2, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Peter Dietz
  • Patent number: 10905330
    Abstract: The subject matter disclosed herein describes an improved MR imaging system for breast tissue. The MR imaging system includes a pair of antenna coil arrays that are movable with respect to a base plate on which the coil arrays are mounted. A fixed coil array may also be mounted in a medial location on the base plate. The MR imaging system provides an abdominal support structure and a head support structure to position a patient in a prone position over the movable and fixed coil arrays. An additional support pad may be provided on the upper surface of the medial coil to support the patient's chest. Each of the movable antenna coil arrays may be moved laterally along the base plate to adjust the space between the two arrays. Once adjusted, each of the movable antenna coil arrays may be secured in the adjusted position to immobilize the breast tissue.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 2, 2021
    Assignee: NeoCoil, Inc.
    Inventors: Kyle Johnson, Brian Brown, Chris Salimes, Emad Abdelsalam
  • Patent number: 10901056
    Abstract: A hybrid imaging apparatus includes a magnetic resonance imaging (MM) arrangement having an RF resonator structure (1) and a gradient coil system (8) having a longitudinal axis, an emission tomography (ET) arrangement with a detector device having at least one photosensor (3) and one circuit board arrangement with at least one readout circuit board (11) on which an ET electronics is arranged, and an internal shielding device (7) shielding the readout electronics (4) of the ET arrangement and shielding the RF resonator structure of the MRI arrangement. The photosensor is arranged, in relation to the longitudinal axis, radially inside the sensor circuit boards and radially outside the RF resonator structure. The internal shielding device is arranged radially outside the photosensor and/or integrated into the photosensor. This achieves both a compact design and optimized performance of the detection of the MR and ET imaging.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 26, 2021
    Assignee: BRUKER BIOSPIN MRI GMBH
    Inventors: Arne Berneking, Sven Junge
  • Patent number: 10895614
    Abstract: A local coil array for magnetic resonance applications has a mechanical structure in which a plurality of local coils of the local coil array are arranged. The mechanical structure has base elements and connecting elements. In each case, two of the base elements are connected to one other via at least one connecting element such that, to a limited extent, a translational and/or rotational movement of the base elements relative to one other is possible. The connection of the base elements to the connecting elements is configured such that the connecting elements either do not oppose the movement of the base elements relative to one another or only employ such a low counterforce that when the mechanical structure is placed on a patient from above, the base elements come to rest on the patient while moving relative to one another. At least some of the base elements contain at least a part of one of the local coils of the local coil array.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: January 19, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Wilfried Schnell, Yvonne Candidus, Thomas Kundner, Wolfgang Kraus
  • Patent number: 10895613
    Abstract: The invention concerns to a radio frequency (RF) body coil (2), for use in a Magnetic Resonance Imaging (MRI) system, comprising: an RF shield (6), an RF coil element (8), distantly arranged from the RF shield (6), and at least one distance setting element (10), arranged and designed in such a way that the relative distance (12) between the RF shield (6) and the RF coil element (8) is adjustable via the distance setting element (10) which may lead to locally deforming the RF coil element (8) and/or the RF shield (6). Thus, a radio frequency coil for use in an Magnetic Resonance Imaging system is provided that can be tuned to desired resonances in a comfortable and economic way.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: January 19, 2021
    Assignee: Koninklijke Philips N.V.
    Inventors: Christian Findeklee, Christoph Leussler
  • Patent number: 10890635
    Abstract: A stand assembly for an RF coil has a base, a slide carriage and a connection assembly. The slide carriage is slidably disposed on the base. The connection assembly comprises a first connecting member and a second connecting member. A first slide groove is formed in the first connecting member. The second connecting member comprises a first slider, the first slider being slidable along the first slide groove in a sliding direction and fixable at a preset position. One of the first connecting member and the second connecting member is in fixed connection with the slide carriage, and the other is in fixed connection with the RF coil. The stand is capable of being used universally for multiple types of RF coils.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: January 12, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Jun You
  • Patent number: 10884083
    Abstract: A gradient magnetic field power supply, connected to a first coil and a second coil for each applying a gradient magnetic field to an object, the power supply, according to an embodiment includes a first current sensor and a second current sensor. The second current sensor is provided such that a direction of a current detectable by the second current sensor crosses a direction of a current detectable by the first current sensor.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: January 5, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Sho Kawajiri, Norio Togawa, Kazuhiro Hamaya
  • Patent number: 10884080
    Abstract: A dual-nuclear radio frequency (RF) coil device includes a first RF coil and a second RF coil. The first RF coil includes at least one adjustment capacitor, the first RF coil is configured to generate a first magnetic field, and a direction of a primary magnetic field of the first magnetic field is a first direction. The second RF coil includes an electric dipole and a tuning and matching circuit connected between two conductors of the electric dipole. The second RF coil is configured to generate a second magnetic field and a direction of a primary magnetic field of the second magnetic field is a second direction; the electric dipole is disposed in a center line of the first RF coil and an insulating layer is disposed between the electric dipole and the first RF coil; and the first direction is perpendicular to the second direction.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 5, 2021
    Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
    Inventors: Hairong Zheng, Ye Li, Qiaoyan Chen, Feng Du, Nan Li, Jo Lee, Chao Luo, Qiang He, Xin Liu
  • Patent number: 10884089
    Abstract: A passive apparatus including a plurality of resonators 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. Moreover, the apparatus enhances specimen safety by substantially avoiding unwanted generation of an electric field, or an increase in the electric field component of the RF energy. 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.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 5, 2021
    Assignee: Trustees of Boston University
    Inventors: Xin Zhang, Stephan Anderson, Guangwu Duan, Xiaoguang Zhao
  • Patent number: 10877118
    Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method of manufacturing a gradient coil assembly for a magnetic resonance imaging system includes depositing a first layer comprising a base material onto a surface to form a substrate and depositing a second layer onto the first layer. The second layer may enable bonding between a conductor material and the substrate. The method also includes depositing a third layer onto the second layer using a consolidation process. The consolidation process uses the conductor material to form at least a portion of a gradient coil.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: December 29, 2020
    Assignee: GE Precision Healthcare LLC
    Inventors: Jean-Baptiste Mathieu, Saban Kurucay, Thomas Kwok-Fah Foo, Yanzhe Yang
  • Patent number: 10877115
    Abstract: Various methods and systems are provided for a flexible, lightweight, and low-cost radio frequency (RF) coil of a magnetic resonance imaging (MM) system with reduced power dissipation during decoupling. In one example, the RF coil includes a loop portion with distributed capacitance which comprises two conductor wires encapsulated and separated by a dielectric material and a feed board including a decoupling circuit configured to decouple the distributed capacitance of the loop portion during a transmit operation, an impedance inverter circuit, and a pre-amplifier.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 29, 2020
    Assignee: General Electric Company
    Inventors: Aleksey Zemskov, Victor Taracila, Fraser John Laing Robb
  • Patent number: 10877122
    Abstract: A Magnetic Resonance Imaging (MM) system, called ULTRA (Unlimited Trains of Radio Acquisitions), can operate with essentially no magnetic gradient reversals. Each of a multitude of small receiver coils arranged in a 3D array around the imaging volume simultaneously acquires MR signal from the entire volume. This greatly increases the rate of MR signal acquisition and allows a full MR image to be reconstructed in as little as 1 millisecond. Both electrical and audible noise is greatly reduced.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: December 29, 2020
    Inventor: Michael Hutchinson
  • Patent number: 10863942
    Abstract: This disclosure relates to a magnetic resonance imaging device. The magnetic resonance imaging device includes an carrying unit; an imaging unit, a controlling computer, and a signal processing computer. The signal processing computer includes a controlling module, a data processing module, an image reconstructing module, an image storing module, and an image comparing module. The image reconstructing module forms cross-sectional scanned images of an user's brain memory showing microstructure. The image comparing module is configured to analyze and compare the cross-sectional scanned images of the user's brain memory showing microstructure captured at different times so that the controlling computer shows different suggestions corresponding to different judgement results of the image comparing module. The system may comprise a dementia monitoring system that provides users with advisory dementia warnings so users may be advised to seek further medical advice.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: December 15, 2020
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Tai-Ming Gou
  • Patent number: 10866292
    Abstract: Various methods and systems are provided for selecting radio frequency (RF) coil array for magnetic resonance imaging (MRI). In one embodiment, the method comprises grouping the plurality of coil elements into receiving elements groups (REGs) according to REGs information, generating channel sensitivity maps for the plurality of coil elements, generating REG sensitivity maps based on the REGs information and the channel sensitivity maps, selecting one or more REGs based on the REG sensitivity maps and a region of interest (ROI), and scanning the ROI with the coil elements of the one or more selected REGs being activated and the coil elements not in any selected REGs being deactivated. In this way, coil arrays may be automatically selected for improved image quality of the MRI.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: December 15, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Shaorong Chang, Dashen Chu, Charles Michelich, Anja Kammeier, Dawei Gui, Zachary Slavens, Brent Robinson, Ling Sun
  • Patent number: 10859649
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes: a cylindrical magnetic pole for generating a static magnetic field in an imaging region; a cylindrical gradient magnetic field coil arranged on a radially inner side of the magnetic pole, coaxially with the magnetic pole to generate a dynamic magnetic field having a linear magnetic field strength in the imaging region; a cylindrical high frequency coil arranged on a radially inner side of the gradient magnetic field coil, coaxially with the magnetic pole and the gradient magnetic field coil to generate a high frequency magnetic field in the imaging region; and a computer system for processing signals to obtain images. The magnetic resonance imaging apparatus further includes at least two loop-shaped additional coils arranged on the radially outer side of the gradient magnetic field coil and having different electric current circulating direction.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: December 8, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yukinobu Imamura, Akira Kurome, Takeshi Yatsuo
  • Patent number: 10859659
    Abstract: Embodiments of the present invention provide a motion monitoring method during MR imaging, comprising: acquiring a noise of a receiving coil before or after each imaging repetition time of an imaging scanning sequence; determining main coil channels associated with a motion of a scanned object in the receiving coil; determining a sum of squares of amplitudes of noises of the respective main coil channels; and filtering the sum of squares of amplitudes of noises of the main coil channels to obtain a motion track of the scanned object.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 8, 2020
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Weinan Tang, Longqing Wang, Qingyu Dai, Dan Wu, Haoyang Xing
  • Patent number: 10859647
    Abstract: An example magnetic resonance imaging (MRI) radio frequency (RF) coil array comprises: at least one row of RF coil elements arranged radially around a cylindrical axis, wherein each row comprises: at least four RF coil elements circumferentially enclosing the cylindrical axis, wherein each RF coil element of that row is configured to operate in a Tx mode and in a Rx mode, wherein, in the Rx mode, each RF coil element of that row is tuned to a working frequency of the MRI RF coil array, and wherein, in the Tx mode, each RF coil element of that row is tuned to an additional frequency that is different than the working frequency, wherein the additional frequency is such that, a mode frequency of a selected mode resulting from coupling among the RF coil elements of that row is at the working frequency.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Quality Electrodynamics, LLC
    Inventors: Xiaoyu Yang, Haoqin Zhu, Tsinghua Zheng
  • Patent number: 10852374
    Abstract: A magnetic resonance (MR) system, including at least one wireless radio-frequency (RF) coil comprising antennas for receiving induced MR signals and an antenna array comprising transmission and reception antennas; a base transmitter system (BTS) having an antenna array comprising a plurality of transmission and reception antennas configured to communicate with the RF coil using a selected spatial diversity (SD) method; and at least one controller to control the BTS and the RF coil to determine a number of transmission and/or reception antennas available, couple the transmission and reception antennas to form corresponding antenna pairings, and determine signal characteristic information (SCI) of the antenna pairings, select an SD transmission method based upon the determined number of antennas and the determined SCI for communication between the BTS and the RF coil, and establish a communication channel between the BTS and the RF coil in accordance with the selected SD transmission method.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 1, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Arne Reykowski, Paul Redder, George Randall Duensing, Timothy Ortiz
  • Patent number: 10852373
    Abstract: Methods and other embodiments control a member of a plurality of MRI transmit (Tx)/receive (Rx) coil array elements to operate in a resonant Tx mode or in a non-resonant Tx mode. The member of the plurality of MRI Tx/Rx coil array elements, upon resonating with a primary coil at a working frequency, generates a local amplified Tx field based on an induced current in the member of the plurality of MRI Tx/Rx coil array elements. The member of the plurality of MRI Tx/Rx coil array elements includes at least one magnitude/phase control circuit connected in parallel. Upon detecting that the member of the plurality of MRI Tx/Rx coil array elements is operating in resonant Tx mode, embodiments randomly control a member of the at least one magnitude/phase control circuit to vary the magnitude or phase of the local amplified Tx field over a range of magnitudes or phases.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: December 1, 2020
    Assignee: Quality Electrodynamics, LLC
    Inventors: Xiaoyu Yang, Haoqin Zhu, Tsinghua Zheng
  • Patent number: 10854378
    Abstract: Wireless power transmittal apparatus and systems are disclosed in which transmitter and receiver inductors, or coils, are coupled in configurations for wirelessly transferring power and/or data among them. In preferred implementations, a plurality of non-coplanar primary side coils are provided in power transmittal apparatus for transmitting power, or power and data.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: December 1, 2020
    Assignee: TRIUNE IP LLC
    Inventors: Ross E. Teggatz, Wayne T. Chen
  • Patent number: 10852372
    Abstract: An MRI image with high image quality can be acquired regardless of a size of an examinee. An array coil includes: a coil unit in which a plurality of sub-coils which includes a loop coil portion in which a conductor having flexibility with a predetermined length is curved and which is adjusted to receive a magnetic resonance signal from an examinee are arranged at predetermined intervals; and a coil casing that is formed of a sheet-shaped material which expands and contracts in at least one direction and accommodates the coil unit therein. At least one position of each of the plurality of sub-coils is fixed to the coil casing and an inter-center distance between the sub-coils varies with expansion and contraction of the coil casing.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: December 1, 2020
    Assignee: HITACHI, LTD.
    Inventors: Kohjiro Iwasawa, Yosuke Otake, Kazuyuki Kato, Hisaaki Ochi
  • Patent number: 10850127
    Abstract: The present invention provides a medical apparatus (100) comprising a magnetic resonance imaging system (110) for acquiring magnetic resonance data from an imaging volume (122) covering at least partially a subject of interest (120), wherein the magnetic resonance imaging system (110) comprises a main magnet (112) for generating a magnetic field within the imaging volume (122), a particle beam apparatus (150) having a particle beam line (152) for a particle beam (154) of charged particles, including a gantry (156) configured for rotating around a rotational axis (R), which is arranged in the longitudinal direction of the main magnet (112), wherein the gantry (156) comprises at least one bending magnet (158) for directing the particle beam (154) to an irradiation volume (124) within the imaging volume (122), an active compensation coil (200), which is arranged to substantially surround at least the imaging volume (122), and a control unit (132) for controlling the active compensation coil (200) for canceling a
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: December 1, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Johannes Adrianus Overweg
  • Patent number: 10845441
    Abstract: Apparatus or system for homogenizing or modifying the magnetic fields of magnets, particularly the magnetic fields employed in nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) applications. The apparatus features passive structures for making magnetic field homogenizations or modifications, and specifically permits the production of desirable correction fields in which the correction field strength has a continuously adjustable value of field strength. Passive shim structures are provided and manipulated so to create correction fields that can have a continuously adjusted value of field strength, such that errors in the original field can be corrected with high fidelity. The passive structures may be physically modified or adjusted by rotation so that truly continuous adjustment of strength and orientation of the corrective fields may be achieved.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 24, 2020
    Inventor: Andrew F. McDowell
  • Patent number: 10842376
    Abstract: An apparatus for at least one of diagnosing or treating an eye condition can include a goggle enclosure, sized and shaped to be seated on an eye socket of an eye to provide one or more cavities within the enclosure that extend about an entire exposed anterior portion of the eye, a pump, in fluidic communication with the one or more cavities to apply a fluid pressure to the one or more cavities, the pump configured to adjust a fluid pressure within the one or more cavities of the goggle enclosure, and a control circuit, including a data interface to receive data directly or indirectly indicating at least one of an intraorbital pressure, ICP, IOP, or a relationship between ICP and IOP, and based on processing the received data as a feedback control variable, controlling the pump to adjust the fluid pressure within the one or more cavities, the controlling including using further monitoring of the received data to control the pump.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: November 24, 2020
    Assignee: Equinox Ophthalmic, Inc.
    Inventors: John Berdahl, George Tsai, Vance Michael Thompson
  • Patent number: 10838026
    Abstract: In one example, an RF coil array includes a first RF coil configured to generate a magnetic field along a first axis, the first RF coil having a first surface, a second RF coil configured to generate a magnetic field along a second axis, orthogonal to the first axis, the second RF coil having a second surface, and a first foldable interconnect coupling the first RF coil to the second RF coil. The first foldable interconnect may be adjusted to couple the first RF coil to the second RF coil with a first amount of overlap and with the first surface and second surface facing a common direction, or couple the first RF coil to the second RF coil with a second amount of overlap, larger than the first amount of overlap, and with the first surface in face to face position with the second surface.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: November 17, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Dashen Chu, Scott Allen Lindsay, Dawei Gui, James Hiroshi Akao, Zhu Li
  • Patent number: 10830845
    Abstract: A first radial bearing includes nozzles in the stator at a radius r1 and a bearing surface on a circular section of the rotor at a radius R1. A second radial bearing includes nozzles in the stator at a radius r2 and a bearing surface on the rotor at a radius R2. An axial bearing includes a nozzle in the stator and a bearing surface on an axial end of the rotor, which runs orthogonally to the rotation axis and has an outer radius R3. The second radial bearing is formed on an end section of the rotor, which has a smaller radius than or a radius that decreases away from the circular section, so that R2<R1 and r2<r1. The third bearing surface is formed on an end of the end section facing away from the circular section, so that R3?R2.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 10, 2020
    Assignee: BRUKER SWITZERLAND AG
    Inventors: Jevgeni Guidoulianov, Nicolas Freytag
  • Patent number: 10832856
    Abstract: An imaging device may include multiple magnetic coils to generate a magnetic field. Additionally, the imaging device may include an outer support affixed to at least one coil of the plurality of magnetic coils and an axial support between at least two coils of the plurality of magnetic coils, wherein the outer support and the axial support operatively share a load corresponding to the generated magnetic fields.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: November 10, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Alexander Kagan, Michael Parizh, Anbo Wu, Minfeng Xu, Paul St. Mark Shadforth Thompson, Mark Ernest Vermilyea
  • Patent number: 10830846
    Abstract: A transmitting antenna for a magnetic resonance device includes a plurality of antenna conductors arranged spaced from one another circumferentially around a center line and extending parallel to the center line, and a screening element extending parallel to the center line and circumferentially encompassing the antenna conductors. For at least one pair of the antenna conductors, a radial distance between a first antenna conductor of the pair and the screening element is smaller than a radial distance between a second antenna conductor of the pair and the screening element, a width of the first antenna conductor is smaller in the circumferential direction than a width of the second antenna conductor in the circumferential direction, axial ends of the first antenna conductor are coupled together via a higher capacitance capacitor than axial ends of the second antenna conductor.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 10, 2020
    Assignee: Siemens Healthcare GmbH
    Inventor: Jürgen Nistler
  • Patent number: 10830847
    Abstract: A local coil apparatus for performing a magnetic resonance (MR) scanning on a local part of a subject is provided. The local coil apparatus may include at least one receiving system for receiving the local part. The at least one receiving system may each include an activation member, a receiving member assembly, and a driving mechanism. The receiving member assembly may include one or more receiving members. Each of the one or more receiving members may include a first coil assembly configured to receive MR signals during the MR scanning. The driving mechanism may be physically connected to the one or more receiving members. When the local part is placed on the activation member, the activation member may cause the driving mechanism to drive the receiving member assembly to change from a first configuration to a second configuration to reduce a distance between at least a portion of the first coil assembly and a portion of the local part so that the first coil assembly conforms to the local part.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 10, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Xiangming Hou, Hai Lu
  • Patent number: 10823795
    Abstract: A resin-impregnated superconducting coil has axially-extending coil mounting arrangements that include features embedded within the structure of the resin-impregnated superconducting coil, between layers of turns of the coil.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: November 3, 2020
    Assignee: Siemens Healthcare Limited
    Inventors: Simon James Calvert, Jonathan Noys
  • Patent number: 10823794
    Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 3, 2020
    Assignee: VIEWRAY TECHNOLOGIES, INC.
    Inventors: Shmaryu M. Shvartsman, Gordon D. Demeester, John L. Patrick, James F. Dempsey
  • Patent number: 10823793
    Abstract: A magnetic resonance scanner has a base, a C-arm mounted on the base, the C-arm having an inner surface curved in a C-shape, the C-shape defining a plane, a magnet mounted on the inner curved surface of the C-arm, the magnet generating a basic magnetic field for magnetic resonance imaging, and a drive mechanism mechanically connected to the magnet. The drive mechanism rotates the magnet around an axis that is orthogonal to the plane so as to selectively position the magnet in at least two magnet positions that are respectively above and beneath a patient, who is situated in the C-arm along or parallel to the axis.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 3, 2020
    Assignees: Siemens Healthcare GmbH, Yale University
    Inventors: Stefan Popescu, Markus Vester, Peter Speier, Edgar Müller, Robert Todd Constable, Gigi Galiana
  • Patent number: 10816620
    Abstract: A method for controlling the distribution of the RF magnetic field in a magnetic resonance imaging system, having steps of: placing a cage coil in a permanent magnet supplying a permanent magnetic field along a first axis, and supplying an RF signal to the cage coil in order for the coil to generate an RF magnetic field rotating in a plane that runs perpendicular to the first axis; and putting in place an electromagnetic resonator, the resonance mode of which is excited by the rotating magnetic field, the resonator being placed in a position inside or outside the cage coil and at a distance from a region to be analyzed of an object to be placed in the cage coil, the resonance mode and the position of the resonator in relation to the volumetric antenna being suitable for adjusting the intensity of the rotating magnetic field in an area of the region to be analyzed.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: October 27, 2020
    Assignees: UNIVERSITE D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE CENTRALE DE MARSEILLE, COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Redha Abdeddaim, Stefan Enoch, Pierre Sabouroux, Gérard Henri Jacques Tayeb, Nicolas Bonod, Alexandre Christian Vignaud, Benoit Larrat, Elodie Virginia Emilia Georget, Lisa Marie Anna Leroi
  • Patent number: 10816619
    Abstract: A couchtop attachment-detachment type RF coil according to an embodiment is attachable to and detachable from connector embedded in a couchtop of a magnetic resonance imaging apparatus, and forms a cable-free RF coil by being fitted with the connector and thereby joined with a coil element embedded in the couchtop, the cable-free RF coil corresponding to one area to be imaged of a subject.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 27, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Manabu Ishii, Sadanori Tomiha, Shinji Mitsui, Mitsuo Takagi, Miyuki Ota, Satoshi Imai
  • Patent number: 10809325
    Abstract: A system including an NMR spectrometer (1) with a flow cell (2) analyzing a first liquid test sample (P1), a distributing device (3) with a multi-way valve, plural assemblies interconnected via fluid lines through the distributing device, a cannula (5) taking test samples from a storage vessel (5a), a sample loop (6) temporarily storing a further test sample (P2), and a pump device (7) pumping liquid (S) into the system. The valve arrangement a) decouples the sample loop with the temporarily stored further test sample and, simultaneously, b) decouples the flow cell with the first test sample from all fluid lines to the distributing device; and c) connects the cannula to the pump device for a simultaneous purging step or to the flow cell for removing the first test sample into a receiving vessel (5b; 5c) or to the sample loop for receiving a subsequent test sample.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 20, 2020
    Assignee: BRUKER BIOSPIN GMBH
    Inventors: Ernst Ulrich Braumann, Martin Hofmann
  • Patent number: 10809199
    Abstract: A dynamic Raman signal acquisition apparatus, system, and method involving: an excitation light source operable at a designated irradiation power and for a designated acquisition time for each Raman data acquisition; a Raman probe operatively associated with said excitation light source to irradiate the biological tissue at said designated irradiation power and for said designated acquisition time, and capture an optical Raman response therefrom; a spectrometer operable to spectrally analyze said optical Raman response; and a controller in operative communication with said excitation light source and said spectrometer to automatically adjust at least one signal acquisition parameter.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: October 20, 2020
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Kresmir Franjic, Yusuf Bismilla, Siu Way Jacky Mak
  • Patent number: 10802101
    Abstract: Various methods and systems are provided for a radio frequency coil array comprising a plurality of coil elements for magnetic resonance imaging. In one embodiment, a method includes grouping the plurality of coil elements into receive elements groups (REGs) according to REGs information, generating coil element sensitivity maps for the plurality of coil elements, generating REG sensitivity maps based on the REGs information and the coil element sensitivity maps, determining, for each REG, signals within a region of interest (ROI) and signals outside of the ROI based on the REG sensitivity maps, selecting one or more REGs based on the signals within the ROI and the signals outside of the ROI of each REG, and scanning the ROI with the coil elements in the selected REGs being activated and the coil elements not in any selected REGs being deactivated. In this way, phase wrap artifacts may be reduced.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: October 13, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Shaorong Chang
  • Patent number: 10794973
    Abstract: A radiation screen comprising the elongate thermal conductors which reduce temperature gradients along the radiation screen and do no support electrical eddy currents. The radiation screen is easy to manufacture, does not require additional mechanical support and does not generate mechanical resonances so that the heat load onto the cold mass remains low.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 6, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Johannes Adrianus Overweg
  • Patent number: 10794970
    Abstract: Methods and systems are provided for radio frequency (RF) coils for magnetic resonance imaging (MRI) systems. In one embodiment, an RF coil configured for an MRI system comprises a plurality of RF coil conductors, each RF coil conductor comprising a base side with two arms extending therefrom. In this way, the RF coil may efficiently generate magnetic fields with improved channel isolation while producing fewer annefact artifacts.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 6, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Saikat Saha
  • Patent number: 10782372
    Abstract: A magnetic resonance imaging (MRI) system radio frequency (RF) subsystem and a coil decoupling apparatus and method used therein. The MRI system RF subsystem comprises a body coil and a surface coil for receiving MR signals, and also comprises a preamplifier for amplifying the MR signals received by the body coil; the coil decoupling apparatus comprises a phase shifter, which is connected between the preamplifier and the body coil, and used for receiving an external voltage regulation signal to regulate an operation voltage thereof, wherein the voltage regulation signal is determined according to a current patient's weight.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 22, 2020
    Assignee: GE Precision Healthcare LLC
    Inventors: Qingyu Dai, Haoyang Xing, Yu Liu, Chun Lai Xiao, Sheng Tong, Weinan Tang
  • Patent number: 10775457
    Abstract: An imaging apparatus is disclosed that includes an MRI system, either as a stand-alone system or hybrid PET-MRI system. The MRI system includes gradient coils positioned about a patient bore, an RF coil former comprising an inner surface and an outer surface, an RF shield positioned on the outer surface of the RF coil former so as to be formed about the RF coil former, and an RF coil positioned on the inner surface of the RF coil former and about the patient bore, with the RF coil coupled to a pulse generator to emit an RF pulse sequence and receive resulting MR signals from a subject of interest. The RF shield includes a plurality of slits formed therein configured to disrupt the formation of gradient field induced eddy currents on the RF shield, so as to prevent the generation of high temperature profiles on the surface of the shield.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 15, 2020
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventor: Saikat Saha
  • Patent number: 10761158
    Abstract: A multichannel array coil of an MRI apparatus achieves both a wide sensitivity and low noise. An RF coil (array coil) is provided with a plurality of subcoils. Each of those subcoils is adjusted to be receivable of nuclear magnetic resonance signals, and also adjusted so that a part of current (first current) passing through one subcoil upon receipt of the signals flows into the other subcoil in the form of sub-current. A flowing direction of the first current is opposite to the flowing direction of the sub-current, and an electric field generated by the first current within a subject and an electric field generated by the first sub-current within the subject intensify each other in the space between a first loop coil unit and a second loop coil unit. Accordingly, noise correlation that is determined by an inner product of the electric fields is reduced, thereby achieving low noise.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 1, 2020
    Assignee: HITACHI, LTD.
    Inventors: Yosuke Otake, Hisaaki Ochi, Kohjiro Iwasawa
  • Patent number: 10761162
    Abstract: A magnetic resonance imaging (MRI) coil system is provided that includes a gradient coil and a flow inlet. The gradient coil includes a flow channel passing therethrough. The gradient coil defines an eye and an end. The eye is disposed proximate the center of the gradient coil. The flow inlet is disposed along the gradient coil between the eye and the end. Cooling fluid is provided to the gradient coil via the flow inlet, and removed from the gradient coil via the eye and the end.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: September 1, 2020
    Assignee: General Electric Company
    Inventors: Naveenan Thiagarajan, Derek Allan Seeber, Eric George Budesheim, Charles Critcher, Dominic Michael Graziani