Patents Examined by Dixomara Vargas
  • Patent number: 11561270
    Abstract: Disclosed herein are an apparatus and method for imaging nano magnetic particles. The apparatus may include a measurement head in which a through hole for accommodating a sample including nano magnetic particles is formed and in which an excitation coil and a detection coil are installed, a field-free region generation unit for forming a field-free region, in which there are few or no magnetic fields, in a spacing area between the identical magnetic poles that face each other, and a control unit for applying a signal to the excitation coil when the measurement head is located inside the spacing area of the field-free region generation unit, controlling the field-free region so as to move in the sample, and imaging the 3D positional distribution of the nano magnetic particles included in the sample based on a detection signal output from the detection coil.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: January 24, 2023
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-Chan Jong, Seung-Min Choi, Hyo-Bong Hong
  • Patent number: 11550011
    Abstract: A computer-implemented method for transforming magnetic resonance (MR) imaging across multiple vendors is provided. The method comprises: obtaining a training dataset, wherein the training dataset comprises a paired dataset and an un-paired dataset, and wherein the training dataset comprises image data acquired using two or more MR imaging devices; training a deep network model using the training dataset; obtaining an input MR image; and transforming the input MR image to a target image style using the deep network model.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 10, 2023
    Assignee: SUBTLE MEDICAL, INC.
    Inventors: Tao Zhang, Enhao Gong, Gregory Zaharchuk
  • Patent number: 11550007
    Abstract: Techniques are disclosed for a local coil and a magnetic resonance imaging system. The local coil includes a plurality of coil units that respectively receive magnetic resonance signals generated when magnetic resonance detection is performed on a detected object, and a signal processing unit configured to perform processing including signal preprocessing and quadrature modulation on the magnetic resonance signals received by the plurality of coil units to obtain signals to be transmitted. Contactless connectors are also disclosed, each being configured to couple the signals to be transmitted to a contactless connector at the MR system side.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: January 10, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: JianMin Wang, Markus Vester
  • Patent number: 11486947
    Abstract: Various embodiments of the present disclosure are directed towards a magnetic resonance imaging (MRI) radio frequency (RF) coil array configured to operate in at least one of a transmit mode or a receive mode on a cylindrical former. The MRI RF coil array includes at first row of RF coil elements. Each row of RF coil elements includes at least three RF coil elements that circumferentially surround a cylindrical axis. The MRI RF coil array also includes a first birdcage coil that circumferentially surrounds the first row of RF coil elements. Each RF coil element of the first row is configured to inductively couple to the first birdcage coil and to each other RF coil elements. The first birdcage coil has an impedance configured to negate inductive coupling between the RF coil elements of the first row.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: November 1, 2022
    Assignee: Quality Electrodynamics, LLC
    Inventors: Xiaoyu Yang, Mathew Finnerty, Tsinghua Zheng
  • Patent number: 11474180
    Abstract: The present disclosure provides a method for optimizing T1-weighted magnetic resonance imaging of infant brains. Firstly, T1 and PD maps of infant brains at 0-12 months old are collected to obtain average T1 and PD values of WM and GM of the infant brains, and infants are classified into three age groups according to the characteristics of WM and GM T1 values of the infant brains. Then, the theoretical signal strength of the WM and GM of the infant brains generated from a 3D T1-weighted imaging sequence is calculated through Bloch simulation, and a theoretical optimal TI scheme of each group is determined according to the simulated WM/GM contrast characteristics under different TIs. Finally, the theoretical optimal TI scheme is applied to a target infant brain according to the designated age group for 3D T1-weighted magnetic resonance imaging.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: October 18, 2022
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Dan Wu, Yi Zhang, Tingting Liu, Hongxi Zhang
  • Patent number: 11474173
    Abstract: A magnetic resonance apparatus, for acquiring magnetic resonance data from a person who is asleep, includes a person support apparatus to provide a sleeping place; an acquisition arrangement including a radiofrequency coil arrangement for transmitting excitation pulses and for receiving magnetic resonance signals; and a controller, designed to operate the acquisition arrangement according to a magnetic resonance sequence for acquiring a magnetic resonance dataset from a region under examination of the person. The magnetic resonance apparatus includes a main magnetic field of strength less than 20 mT, in particular less than 10 mT, and the controller includes an acquisition unit for acquiring a magnetic resonance dataset via a prolonged magnetic resonance sequence having a total acquisition duration of more than one hour.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 18, 2022
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Markus Vester, Carmel Hayes, Stefan Popescu, Mathias Blasche, Matthias Gebhardt
  • Patent number: 11467236
    Abstract: In one embodiment, a biological information monitoring apparatus includes: an antenna assembly including at least one antenna, the antenna assembly being configured to be disposed close to an abject; a signal generator configured to generate a high-frequency signal; a coupling-amount detection circuit configured to detect coupling amount of near-field coupling due to an electric field between the object and the at least one antenna by using the high-frequency signal; and a displacement detection circuit configured to detect a physical displacement of the object based on change in the coupling amount of near-field coupling.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: October 11, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Takafumi Ohishi, Sadanori Tomiha
  • Patent number: 11460600
    Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the distal end of the drill tubular leading into the borehole, and a retaining device configured to allow at least a section of the NMR tool to protrude through the opening of the drill tubular and prevent an unrestrained release of the NMR tool through the opening. The apparatus also includes a transmitter antenna and a receiver antenna coupled to the NMR tool, wherein the transmitter antenna and/or the receiver antenna are extendable from the NMR tool.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: October 4, 2022
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Carl M. Edwards, Marc Stephen Ramirez, Otto Fanini, Stanislav Forgang
  • Patent number: 11452463
    Abstract: A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: September 27, 2022
    Assignee: VIEWRAY TECHNOLOGIES, INC.
    Inventors: Shmaryu M. Shvartsman, Gordon D. DeMeester, James F. Dempsey, John Lester Patrick
  • Patent number: 11454686
    Abstract: A gradient system for a magnetic resonance imaging system can include at least two examination areas using a common basic magnetic field and a number of gradient coils in the at least two examination areas, and a gradient controller configured such that it controls the electric current flowing through at least two gradient coils for similar gradient axes in different examination areas in a temporal synchronous manner.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: September 27, 2022
    Assignee: Siemens Healthcare GmbH
    Inventor: Stefan Popescu
  • Patent number: 11454685
    Abstract: A wireless magnetic resonance (MR) signal receiving system comprises a wireless MR coil (20) and a base station (50). The wireless MR coil includes coil elements (22) tuned to receive an MR signal, and electronic modules (24) each including a transceiver (30) and a digital processor (32). Each electronic module is operatively connected to receive an MR signal from at least one coil element. The base station includes a base station transceiver (52) configured to wirelessly communicate with the transceivers of the electronic modules of the wireless MR coil, and a base station digital processor (54). The electronic modules form a configurable mesh network (60) to wirelessly transmit the MR signals received by the electronic modules to the base station. The base station digital processor is programmed to operate the base station transceiver to receive the MR signals wirelessly transmitted to the base station by the configurable mesh network.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: September 27, 2022
    Assignee: Koninklijke Philips N.V.
    Inventors: Paul Franz Redder, Arne Reykowski, Rodrigo Calderon Rico
  • Patent number: 11454688
    Abstract: A method and a system for providing parameters of a resonance frequency spectrum of a magnetic resonance scan. The system includes: an input interface for receiving a resonance frequency spectrum of a magnetic resonance scan and a computing device configured to implement a trained machine learning algorithm. The trained machine learning algorithm is trained to receive the resonance frequency spectrum received by the input interface as its input and to generate as its output a set of parameters of the resonance frequency spectrum. The system further includes an output interface configured to output the generated set of parameters.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: September 27, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Gudrun Ruyters, Johann Sukkau, Michael Wullenweber
  • Patent number: 11442125
    Abstract: Various embodiments of the present disclosure are directed towards a magnetic resonance imaging (MRI) radio frequency (RF) coil configured to operate in at least one of a transmit mode or a receive mode. A first birdcage coil includes a pair of first-birdcage end rings and at least four first-birdcage rungs circumferentially arranged along the first-birdcage end rings. A second birdcage coil including a pair of second-birdcage end rings and at least four second-birdcage rungs circumferentially arranged along the second-birdcage end rings. The first and second birdcage coils neighbor and are spaced by a first non-zero distance along an axis. The axis is surrounded by the first-birdcage end rings and the second-birdcage end rings, and the first non-zero distance is greater than individual lengths of the first and second birdcage coils along the axis.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: September 13, 2022
    Assignee: Quality Electrodynamics, LLC
    Inventors: Xiaoyu Yang, Thomas Eastlake, Tsinghua Zheng
  • Patent number: 11435422
    Abstract: The invention provides for a medical imaging system comprising: a memory for storing machine executable instructions; a processor for controlling the medical instrument. Execution of the machine executable instructions causes the processor to: receive MRF magnetic resonance data acquired according to an MRF magnetic resonance imaging protocol of a region of interest; reconstruct an MRF vector for each voxel of a set of voxels descriptive of the region of interest using the MRF magnetic resonance data according to the MRF magnetic resonance imaging protocol; calculate a preprocessed MRF vector (126) for each of the set of voxels by applying a predetermined preprocessing routine to the MRF vector for each voxel, wherein the predetermined preprocessing routine comprises normalizing the preprocessed MRF vector for each voxel; calculate an outlier map for the set of voxels by assigning an outlier score to the preprocessed MRF vector using a machine learning algorithm.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: September 6, 2022
    Assignee: Koninklijke Philips N.V.
    Inventors: Thomas Erik Amthor, Mariya Ivanova Doneva, Jan Jakob Meineke
  • Patent number: 11428763
    Abstract: A planar inverse anapole microresonator includes: an anapolic substrate; an anapolic conductor that includes a first and second inverse anapolic pattern; each inverse anapolic pattern including: a semi annular arm that terminates in a first arm tendril and a second arm tendril; and a medial arm terminating at a medial tip, and the medial tip of the first inverse anapolic pattern opposes the medial tip of the second inverse anapolic pattern, such that the medial tip of the first inverse anapolic pattern is separated from the medial tip of the second inverse anapolic pattern by a medial gap, and the planar inverse anapole microresonator produces a magnetic field region that concentrates a magnetic field localized between the medial tip of the first inverse anapolic pattern and the medial tip of the second inverse anapolic pattern in response to the planar inverse anapole microresonator being subjected to microwave radiation.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: August 30, 2022
    Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Veronika Ann Szalai, Amit Kumar Agrawal, Nandita Abhyankar
  • Patent number: 11428762
    Abstract: Various methods and systems are provided for a flexible, lightweight, and lowcost radio frequency (RF) coil of a magnetic resonance imaging (MRI) system. In one example, a RF coil assembly for an MRI system includes a distributed capacitance loop portion comprising at least three distributed capacitance conductor wires encapsulated and separated by a dielectric material, a coupling electronics portion including a preamplifier, and a coil-interfacing cable extending between the coupling electronics portion and an interfacing connector of the RF coil assembly.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 30, 2022
    Assignee: General Electric Company
    Inventors: Victor Taracila, Robert Steven Stormont, Fraser John Laing Robb, Aleksey Zemskov
  • Patent number: 11408951
    Abstract: A head coil apparatus for MRI of a person's head includes a transmit coil array device generating RF fields for spin state excitation to the head, wherein the transmit coil array device comprises multiple transmit coil loops decoupled from each other and arranged on a transmit coil array carrier surrounding an inner head coil space for receiving the head; a receive coil array device for receiving RF resonance signals from the head; a RF shield surrounding the transmit coil array device and the receive coil array device; and a head coil window providing a viewing port through the RF shield and transmit coil array device. The head coil window has a longitudinal extension and an azimuthal extension, the transmit coil loops includes a window coil loop surrounding the head coil window, and the coil loop is decoupled from a neighbouring transmit coil loop by sharing a common loop conductor.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: August 9, 2022
    Assignee: MR CoilTech Limited
    Inventor: Shajan Gunamony
  • Patent number: 11402451
    Abstract: Systems and methods include generation of a source optical signal outside of a radiofrequency-shielded cabin based on a reference electrical clock signal, transmission of the source optical signal into the radiofrequency-shielded cabin via optical media, generation of an electrical clock signal based on the source optical signal within the radiofrequency-shielded cabin, jitter cleaning of the electrical clock signal within the radiofrequency-shielded cabin to generate a jitter-cleaned electrical clock signal based on an average frequency of the electrical clock signal and a jitter of a magnetically-compatible jitter cleaner oscillator, and transmission of the jitter-cleaned electrical clock signal to a plurality of positron emission tomography scanner detectors disposed within the radiofrequency-shielded cabin.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 2, 2022
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Andrew Philip Moor, Nan Zhang
  • Patent number: 11402210
    Abstract: A method for ascertaining a change in a spatial orientation of a nuclear magnetic resonance (NMR) gyroscope having a diamond doped with color centers includes applying a static external magnetic field in a first direction, polarizing a nuclear spin of the color centers of the diamond in a direction of the static magnetic field, and generating a cophasal Larmor precession of the nuclear spin of the color centers of the diamond through application of an alternating magnetic field in a second direction perpendicular to the first direction, whose frequency corresponds to the Larmor frequency of the nuclear spin of the color centers. The method further includes measuring a phase of the Larmor precession, and ascertaining a change in the spatial orientation in a plane perpendicular to the first direction based on a deviation of the precession frequency from an expected value.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: August 2, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Robert Roelver, Andreas Brenneis, Felix Michael Stuerner, Janine Riedrich-Moeller, Tino Fuchs
  • Patent number: 11397275
    Abstract: A distributed device and method for detecting groundwater based on nuclear magnetic resonance are provided. The device includes an excitation apparatus, multiple polarization apparatuses, an aerial reception apparatus, and a control apparatus. The aerial reception apparatus includes an array cooled coil sensor. For each of the multiple polarization apparatuses, a position analysis module determines, together with a second position analysis module of the polarization apparatus, a position of the array cooled coil sensor relative to a polarization coil in the polarization apparatus. A polarization transmitter in the polarization apparatus switches to a mode of waiting for output in a case that the array cooled coil sensor is in coverage of the polarization coil. The polarization transmitter in the polarization apparatus remains in a standby mode in a case that the array cooled coil sensor is beyond coverage of the polarization coil.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: July 26, 2022
    Assignee: JILIN UNIVERSITY
    Inventors: Tingting Lin, Kun Zhou, Chao Chen, Pengfei Wang, Yang Zhang, Ling Wan