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公开(公告)号：US11035916B2
公开(公告)日：2021-06-15
申请号：US16509346
申请日：2019-07-11
Applicant: ViewRay Technologies, Inc.
Inventor： James F. Dempsey , Thomas Chmielewski
Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.
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公开(公告)号：US20240165427A1
公开(公告)日：2024-05-23
申请号：US18425596
申请日：2024-01-29
Applicant: ViewRay Technologies, Inc.
Inventor： Iwan Kawrykow , Thomas Chmielewski , James F. Dempsey
CPC classification number: A61N5/1081 , A61B6/032 , A61N5/1031 , A61N5/1037 , A61N5/1045 , A61N5/1049 , A61N5/1069 , G21K1/046 , A61B6/06 , A61N5/1039 , A61N5/1043 , A61N5/1065
Abstract: A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.
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公开(公告)号：US11045108B2
公开(公告)日：2021-06-29
申请号：US14555205
申请日：2014-11-26
Applicant: ViewRay Technologies, Inc.
Inventor： Thomas Chmielewski , James F. Dempsey
IPC: A61B5/055 , A61N5/10 , G01R33/34 , G01R33/48 , G01R33/3415
Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.
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公开(公告)号：US11642040B2
公开(公告)日：2023-05-09
申请号：US17346062
申请日：2021-06-11
Applicant: ViewRay Technologies, Inc.
Inventor： Thomas Chmielewski , James F. Dempsey
IPC: A61B5/055 , A61N5/10 , G01R33/34 , G01R33/48 , G01R33/3415
CPC classification number: A61B5/055 , A61N5/1049 , G01R33/34007 , G01R33/3415 , G01R33/4808 , A61N2005/1055
Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.
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公开(公告)号：US20230041633A1
公开(公告)日：2023-02-09
申请号：US17880326
申请日：2022-08-03
Applicant: ViewRay Technologies, Inc.
Inventor： Thomas Chmielewski , Steven Koenig
IPC: G01R33/34 , G01R33/3415
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11000706B2
公开(公告)日：2021-05-11
申请号：US15840941
申请日：2017-12-13
Applicant: ViewRay Technologies, Inc.
Inventor： Iwan Kawrykow , Thomas Chmielewski , James F. Dempsey
Abstract: A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.
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公开(公告)号：US10466319B2
公开(公告)日：2019-11-05
申请号：US15224264
申请日：2016-07-29
Applicant: ViewRay Technologies, Inc.
Inventor： James F. Dempsey , Thomas Chmielewski
Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.
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公开(公告)号：US20190331746A1
公开(公告)日：2019-10-31
申请号：US16509346
申请日：2019-07-11
Applicant: ViewRay Technologies, Inc.
Inventor： James F. Dempsey , Thomas Chmielewski
Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.
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公开(公告)号：US11353535B2
公开(公告)日：2022-06-07
申请号：US15933288
申请日：2018-03-22
Applicant: ViewRay Technologies, Inc.
Inventor： Thomas Chmielewski , Shmaryu M. Shvartsman
IPC: G01R33/565 , G01R33/381 , G01R33/383
Abstract: Apparatuses, methods, and computer program products for reducing an appearance of an artifact in an image generated by a magnetic resonance imaging (MRI) system are disclosed. The apparatus includes a magnetic field generating device configured to create an inhomogeneity in the magnetic field of an MRI system and prevent at least one out-of-field excitation during imaging.
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公开(公告)号：US20210356539A1
公开(公告)日：2021-11-18
申请号：US17344825
申请日：2021-06-10
Applicant: ViewRay Technologies, Inc.
Inventor： James F. Dempsey , Thomas Chmielewski
Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.
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