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    EDDY CURRENT MITIGATION SYSTEMS AND METHODS
    1.
    发明申请
    EDDY CURRENT MITIGATION SYSTEMS AND METHODS 有权

    公开(公告)号：US20210048498A1

    公开(公告)日：2021-02-18

    申请号：US16994005

    申请日：2020-08-14

    Applicant: Hyperfine Research, Inc.

    Inventor： Hadrien A. Dyvorne ,  Cedric Hugon ,  Rafael O'Halloran ,  Laura Sacolick

    IPC: G01R33/565 ,  G01R33/58

    Abstract: Techniques for compensating for presence of eddy currents during the operation of a magnetic resonance imaging (MRI) system in accordance with a pulse sequence, the pulse sequence comprising a gradient waveform associated with a target gradient field. The techniques include: compensating for presence of eddy currents during operation of the MRI system at least in part by correcting the gradient waveform using a nonlinear function of a characteristic of the gradient waveform to obtain a corrected gradient waveform; and operating the MRI system in accordance with the corrected gradient waveform to generate the target gradient field.

    FERROMAGNETIC FRAME FOR MAGNETIC RESONANCE IMAGING
    7.
    发明申请
    FERROMAGNETIC FRAME FOR MAGNETIC RESONANCE IMAGING 有权

    公开(公告)号：US20210173025A1

    公开(公告)日：2021-06-10

    申请号：US17116237

    申请日：2020-12-09

    Applicant: Hyperfine Research, Inc.

    Inventor： Cedric Hugon

    IPC: G01R33/383

    Abstract: An apparatus for providing a B0 magnetic field for a magnetic resonance imaging system. The apparatus includes at least one permanent B0 magnet to contribute a magnetic field to the B0 magnetic field for the MRI system and a ferromagnetic frame configured to capture and direct at least some of the magnetic field generated by the B0 magnet. The ferromagnetic frame includes a first plate configured to support the at least one permanent B0 magnet and a first post attached to the first plate using a first connection assembly, wherein the first connection assembly includes a first connector that connects the first post and the first plate and a second connector attached to the first connector.

    PORTABLE MAGNETIC RESONANCE IMAGING METHODS AND APPARATUS
    10.
    发明申请
    PORTABLE MAGNETIC RESONANCE IMAGING METHODS AND APPARATUS 审中-公开

    公开(公告)号：US20200341085A1

    公开(公告)日：2020-10-29

    申请号：US16923892

    申请日：2020-07-08

    Applicant: Hyperfine Research, Inc.

    Inventor： Michael Stephen Poole ,  Cedric Hugon ,  Hadrien A. Dyvorne ,  Laura Sacolick ,  William J. Mileski ,  Jeremy Christopher Jordan ,  Alan B. Katze, JR. ,  Jonathan M. Rothberg ,  Todd Rearick ,  Christopher Thomas McNulty

    IPC: G01R33/38 ,  G01R33/34 ,  G01R33/385 ,  G01R33/383 ,  G01R33/565 ,  G01R33/36 ,  G01R33/44

    Abstract: According to some aspects, a portable magnetic resonance imaging system is provided, comprising a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging. The magnetics system comprises a permanent B0 magnet configured to produce a B0 field for the magnetic resonance imaging system, and a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of emitted magnetic resonance signals, a power system comprising one or more power components configured to provide power to the magnetics system to operate the magnetic resonance imaging system to perform image acquisition, and a base that supports the magnetics system and houses the power system, the base comprising at least one conveyance mechanism allowing the portable magnetic resonance imaging system to be transported to different locations. According to some aspects, the base has a maximum horizontal dimension of less than or equal to approximately 50 inches. According to some aspects, the portable magnetic resonance imaging system weighs less than 1,500 pounds. According to some aspects, the portable magnetic resonance imaging system has a 5-Gauss line that has a maximum dimension of less than or equal to five feet.

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