-
公开(公告)号：US10551452B2
公开(公告)日：2020-02-04
申请号：US15720245
申请日：2017-09-29
Applicant: Hyperfine Research, Inc.
Inventor： Todd Rearick , Jeremy Christopher Jordan , Gregory L. Charvat , Matthew Scot Rosen
Abstract: Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system. Some aspects include a method of automatically tuning a radio frequency coil comprising determining information indicative of a Larmor frequency of the magnetic resonance imaging system, using a controller to automatically set at least one value of a tuning circuit to cause the radio frequency coil to resonate at approximately the Larmor frequency based on the determined information.
-
公开(公告)号：US10520566B2
公开(公告)日：2019-12-31
申请号：US15821207
申请日：2017-11-22
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 , G01R33/385 , G01R33/383 , G01R33/44 , G01R33/389 , G01R33/421 , G01R33/56 , A61B5/055 , A61B6/00 , A61G13/10 , G01R33/34 , G01R33/48 , A61B90/00 , A61B50/13 , G01R33/36 , G01R33/422 , G01R33/3873
Abstract: According to some aspects, a low-field magnetic resonance imaging system is provided. The low-field magnetic resonance imaging system comprises a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging, the magnetics system comprising, a B0 magnet configured to produce a B0 field for the magnetic resonance imaging system at a low-field strength of less than 0.2 Tesla (T), a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of magnetic resonance signals, and at least one radio frequency coil configured to, when operated, transmit radio frequency signals to a field of view of the magnetic resonance imaging system and to respond to magnetic resonance signals emitted from the field of view, 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 power connection configured to connect to a single-phase outlet to receive mains electricity and deliver the mains electricity to the power system to provide power needed to operate the magnetic resonance imaging system. According to some aspects, the power system operates the low-field magnetic resonance imaging system using an average of less than 1.6 kilowatts during image acquisition.
-
公开(公告)号：US20190353723A1
公开(公告)日：2019-11-21
申请号：US16418379
申请日：2019-05-21
Applicant: Hyperfine Research, Inc.
Inventor： Hadrien A. Dyvorne , Todd Rearick
Abstract: Methods and apparatus for reducing noise in RF signal chain circuitry for a low-field magnetic resonance imaging system are provided. A switching circuit in the RF signal chain circuitry may include at least one field effect transistor (FET) configured to operate as an RF switch at an operating frequency of less than 10 MHz. A decoupling circuit may include tuning circuitry coupled across inputs of an amplifier and active feedback circuitry coupled between an output of the amplifier and an input of the amplifier, wherein the active feedback circuitry includes a feedback capacitor configured to reduce a quality factor of an RF coil coupled to the amplifier.
-
公开(公告)号：US20190257903A1
公开(公告)日：2019-08-22
申请号：US16385082
申请日：2019-04-16
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: G01R33/385 , G01R33/44 , G01R33/389 , A61B5/055 , G01R33/383 , G01R33/421 , G01R33/56 , G01R33/38 , G01R33/34 , G01R33/48 , A61G13/10 , A61B50/13 , A61B6/00 , A61B90/00
Abstract: A low-field MRI system comprising: a magnetics system having a plurality of magnetics components configured to produce magnetic fields for MR imaging. The magnetics system comprises: a B0 magnet configured to produce a B0 field at a field strength of less than .2 Tesla (T); a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of emitted MR signals; and at least one RF coil configured to, when operated, transmit RF signals to a field of view of the MIR system and to respond to MR signals emitted from the field of view. The MRI system comprises a power system comprising one or more power components configured to provide power to the magnetics system to operate the MRI system to perform image acquisition, wherein the power system operates the MRI system using an average of less than 5 kilowatts during image acquisition.
-
公开(公告)号：US10274561B2
公开(公告)日：2019-04-30
申请号：US15879317
申请日：2018-01-24
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: G01V3/00 , G01R33/385 , G01R33/383 , G01R33/44 , G01R33/389 , G01R33/421 , G01R33/56 , G01R33/38 , A61B5/055 , A61B6/00 , A61G13/10 , G01R33/34 , G01R33/48 , A61B90/00 , A61B50/13 , G01R33/36 , G01R33/422 , G01R33/3873
Abstract: According to some aspects, a portable magnetic resonance imaging system is provided, comprising a B0 magnet configured to produce a B0 magnetic field for an imaging region of the magnetic resonance imaging system, a noise reduction system configured to detect and suppress at least some electromagnetic noise in an operating environment of the portable magnetic resonance imaging system, and electromagnetic shielding provided to attenuate at least some of the electromagnetic noise in the operating environment of the portable magnetic resonance imaging system, the electromagnetic shielding arranged to shield a fraction of the imaging region of the portable magnetic resonance imaging system. According to some aspects, the electromagnetic shield comprises at least one electromagnetic shield structure adjustably coupled to the housing to provide electromagnetic shielding for the imaging region in an amount that can be varied. According to some aspects, substantially no shielding of the imaging region of the portable magnetic resonance imaging system is provided.
-
Patent Agency Ranking
公开(公告)号：US20190101607A1
公开(公告)日：2019-04-04
申请号：US16207971
申请日：2018-12-03
Applicant: Hyperfine Research, Inc.
Inventor： Jonathan M. Rothberg , Jeremy Christopher Jordan , Michael Stephen Poole , Laura Sacolick , Todd Rearick , Gregory L. Charvat
IPC: G01R33/56 , G01R33/36 , G01R33/28 , G01R33/385 , G01R33/58 , G01R33/48 , H01F7/02 , H01F7/06 , G01R33/383 , G01R33/54 , G01R33/38 , G01R33/44 , G01R33/381 , G01R33/3875 , G01R33/34 , G01R33/565 , G01R33/422
CPC classification number: G01R33/5608 , G01R33/28 , G01R33/34007 , G01R33/36 , G01R33/3614 , G01R33/38 , G01R33/3802 , G01R33/3804 , G01R33/3806 , G01R33/381 , G01R33/383 , G01R33/385 , G01R33/3852 , G01R33/3854 , G01R33/3856 , G01R33/3858 , G01R33/3875 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/543 , G01R33/546 , G01R33/56 , G01R33/56518 , G01R33/58 , H01F7/02 , H01F7/06
Abstract: In some aspects, a method of operating a magnetic resonance imaging system comprising a B0 magnet and at least one thermal management component configured to transfer heat away from the B0 magnet during operation is provided. The method comprises providing operating power to the B0 magnet, monitoring a temperature of the B0 magnet to determine a current temperature of the B0 magnet, and operating the at least one thermal management component at less than operational capacity in response to an occurrence of at least one event.
-
公开(公告)号：US20180210047A1
公开(公告)日：2018-07-26
申请号：US15879203
申请日：2018-01-24
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: G01R33/385 , G01R33/44 , G01R33/383
CPC classification number: G01R33/3852 , A61B5/0555 , A61B6/4405 , A61B50/13 , A61B90/00 , A61B2560/0431 , A61G13/104 , G01R33/34092 , G01R33/3642 , G01R33/3657 , G01R33/38 , G01R33/3802 , G01R33/3806 , G01R33/383 , G01R33/385 , G01R33/3854 , G01R33/3873 , G01R33/389 , G01R33/4215 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/5608
Abstract: According to some aspects, a low power magnetic resonance imaging system is provided. The magnetic resonance imaging system comprises a magnetics system having a plurality of magnetics components configured to produce magnetic fields for performing magnetic resonance imaging. The magnetics system comprising a B0 magnet configured to produce a B0 field for the magnetic resonance imaging system, a plurality of gradient coils configured to, when operated, generate magnetic fields to provide spatial encoding of emitted magnetic resonance signals, and at least one radio frequency coil configured to, when operated, transmit radio frequency signals to the field of view of the magnetic resonance imaging system and to respond to magnetic resonance signals emitted from the field of view. The magnetic resonance imaging system further comprises 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, wherein the power system operates the low-field magnetic resonance imaging system using an average of less than 1.6 kilowatts during image acquisition. According to some aspects, the magnetic resonance imaging system is a low-field magnetic resonance imaging system comprising a power connection configured to connect to a single-phase outlet to receive mains electricity and deliver the mains electricity to the power system to provide power needed to operate the magnetic resonance imaging system.
-
公开(公告)号：US20180164390A1
公开(公告)日：2018-06-14
申请号：US15879317
申请日：2018-01-24
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: G01R33/422 , G01R33/36 , G01R33/38
CPC classification number: G01R33/3852 , A61B5/0555 , A61B6/4405 , A61B50/13 , A61B90/00 , A61B2560/0431 , A61G13/104 , G01R33/34092 , G01R33/3642 , G01R33/3657 , G01R33/38 , G01R33/3802 , G01R33/3806 , G01R33/383 , G01R33/385 , G01R33/3854 , G01R33/3873 , G01R33/389 , G01R33/4215 , G01R33/422 , G01R33/445 , G01R33/48 , G01R33/5608
Abstract: According to some aspects, a portable magnetic resonance imaging system is provided, comprising a B0 magnet configured to produce a B0 magnetic field for an imaging region of the magnetic resonance imaging system, a noise reduction system configured to detect and suppress at least some electromagnetic noise in an operating environment of the portable magnetic resonance imaging system, and electromagnetic shielding provided to attenuate at least some of the electromagnetic noise in the operating environment of the portable magnetic resonance imaging system, the electromagnetic shielding arranged to shield a fraction of the imaging region of the portable magnetic resonance imaging system. According to some aspects, the electromagnetic shield comprises at least one electromagnetic shield structure adjustably coupled to the housing to provide electromagnetic shielding for the imaging region in an amount that can be varied. According to some aspects, substantially no shielding of the imaging region of the portable magnetic resonance imaging system is provided.
-
公开(公告)号：US20180156881A1
公开(公告)日：2018-06-07
申请号：US15880482
申请日：2018-01-25
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: G01R33/421 , G01R33/48
Abstract: According to some aspects, a portable magnetic resonance imaging system is provided, comprising a B0 magnet configured to produce a B0 magnetic field for an imaging region of the magnetic resonance imaging system, a noise reduction system configured to detect and suppress at least some electromagnetic noise in an operating environment of the portable magnetic resonance imaging system, and electromagnetic shielding provided to attenuate at least some of the electromagnetic noise in the operating environment of the portable magnetic resonance imaging system, the electromagnetic shielding arranged to shield a fraction of the imaging region of the portable magnetic resonance imaging system. According to some aspects, the electromagnetic shield comprises at least one electromagnetic shield structure adjustably coupled to the housing to provide electromagnetic shielding for the imaging region in an amount that can be varied. According to some aspects, substantially no shielding of the imaging region of the portable magnetic resonance imaging system is provided.
-
公开(公告)号：US20210215778A1
公开(公告)日：2021-07-15
申请号：US17216163
申请日：2021-03-29
Applicant: Hyperfine Research, Inc.
Inventor： Todd Rearick , Jeremy Christopher Jordan , Gregory L. Charvat , Matthew Scot Rosen
Abstract: Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system. Some aspects include a method of automatically tuning a radio frequency coil comprising determining information indicative of a Larmor frequency of the magnetic resonance imaging system, using a controller to automatically set at least one value of a tuning circuit to cause the radio frequency coil to resonate at approximately the Larmor frequency based on the determined information.
-
-
-
-
-
-
-
-
-
Search Results
83
records
(took 0.047 seconds)
