BR112021017970A2 - Método para realizar imageamento por ressonância magnética, sistema de imageamento por ressonância magnética, e, meio legível por computador não transitório - Google Patents
Método para realizar imageamento por ressonância magnética, sistema de imageamento por ressonância magnética, e, meio legível por computador não transitórioInfo
- Publication number
- BR112021017970A2 BR112021017970A2 BR112021017970A BR112021017970A BR112021017970A2 BR 112021017970 A2 BR112021017970 A2 BR 112021017970A2 BR 112021017970 A BR112021017970 A BR 112021017970A BR 112021017970 A BR112021017970 A BR 112021017970A BR 112021017970 A2 BR112021017970 A2 BR 112021017970A2
- Authority
- BR
- Brazil
- Prior art keywords
- magnetic resonance
- resonance imaging
- radio frequency
- readable medium
- transitory computer
- Prior art date
Links
- 238000002595 magnetic resonance imaging Methods 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 5
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
- A61B5/4375—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the male reproductive system
- A61B5/4381—Prostate evaluation or disorder diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
- G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3802—Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/445—MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/46—NMR spectroscopy
- G01R33/4616—NMR spectroscopy using specific RF pulses or specific modulation schemes, e.g. stochastic excitation, adiabatic RF pulses, composite pulses, binomial pulses, Shinnar-le-Roux pulses, spectrally selective pulses not being used for spatial selection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
- G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34076—Birdcage coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R33/4833—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices
- G01R33/4835—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices of multiple slices
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Signal Processing (AREA)
- Reproductive Health (AREA)
- Gynecology & Obstetrics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
método para realizar imageamento por ressonância magnética, sistema de imageamento por ressonância magnética, e, meio legível por computador não transitório. um método para realizar imageamento por ressonância magnética é provido. o método inclui prover um sistema de imageamento por ressonância magnética compreendendo: um sistema de recepção de radiofrequência compreendendo uma bobina de recepção de radiofrequência e um alojamento, em que o alojamento compreende um ímã permanente para prover um campo de gradiente permanente não homogêneo, um sistema de transmissão de radiofrequência e um conjunto de bobinas de gradiente de lado único. o método também inclui colocar a bobina de recepção próxima de um sujeito alvo; aplicar uma sequência de pulsos chirpados por intermédio do sistema de transmissão; aplicar uma excitação de multicorte ao longo do campo de gradiente permanente não homogêneo; aplicar uma pluralidade de pulsos de gradiente por intermédio do conjunto de bobinas de gradiente ortogonal ao campo de gradiente permanente não homogêneo; adquirir um sinal do sujeito alvo por intermédio do sistema de recepção, em que o sinal compreende pelo menos dois pulsos chirpados; e formar uma imagem de ressonância magnética do sujeito alvo.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962823511P | 2019-03-25 | 2019-03-25 | |
PCT/US2020/024778 WO2020198396A1 (en) | 2019-03-25 | 2020-03-25 | Systems and methods for volumetric acquisition in a single-sided mri system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112021017970A2 true BR112021017970A2 (pt) | 2021-11-23 |
Family
ID=72609504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112021017970A BR112021017970A2 (pt) | 2019-03-25 | 2020-03-25 | Método para realizar imageamento por ressonância magnética, sistema de imageamento por ressonância magnética, e, meio legível por computador não transitório |
Country Status (12)
Country | Link |
---|---|
US (2) | US11506737B2 (pt) |
EP (1) | EP3946042A4 (pt) |
JP (2) | JP7133725B2 (pt) |
KR (2) | KR102436951B1 (pt) |
CN (1) | CN113766875B (pt) |
AU (2) | AU2020248421B2 (pt) |
BR (1) | BR112021017970A2 (pt) |
CA (1) | CA3133107C (pt) |
IL (2) | IL286286B2 (pt) |
MX (1) | MX2021011114A (pt) |
SG (1) | SG11202109926UA (pt) |
WO (1) | WO2020198396A1 (pt) |
Families Citing this family (11)
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USD895803S1 (en) * | 2019-02-21 | 2020-09-08 | Promaxo, Inc. | Analytical device |
CN113766875B (zh) | 2019-03-25 | 2022-12-06 | 普罗马克索公司 | 用于在单面mri系统中进行体积采集的系统和方法 |
MX2021015362A (es) | 2019-06-25 | 2022-01-24 | Promaxo Inc | Sistemas y metodos para la reconstruccion de imagen en imagenologia por resonancia magnetica. |
EP4093314A1 (en) | 2020-01-23 | 2022-11-30 | Promaxo, Inc. | Mri-guided robotic systems and methods for biopsy |
KR20220164825A (ko) | 2020-02-20 | 2022-12-13 | 프로맥소 인크. | 단면 자기 공명 이미징을 위한 무선 주파수 수신 코일 네트워크 |
KR20220167281A (ko) | 2020-03-09 | 2022-12-20 | 프로맥소 인크. | 단면 자기 공명 이미징을 위한 펄스 시퀀스 및 주파수 스위프 펄스 |
CN115243609A (zh) | 2020-03-09 | 2022-10-25 | 普罗马克索公司 | 用于不均匀磁场中的磁共振成像的利用频率扫描脉冲的相位编码 |
WO2022232780A1 (en) | 2021-04-26 | 2022-11-03 | Promaxo, Inc. | Interventional localization guide and method for mri guided pelvic interventions |
JP2022177552A (ja) * | 2021-05-18 | 2022-12-01 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置及び方法 |
WO2023133071A1 (en) | 2022-01-04 | 2023-07-13 | Promaxo, Inc. | Relaxation-based magnetic resonance thermometry with a low-field single-sided mri scanner |
JP2023150057A (ja) * | 2022-03-31 | 2023-10-16 | キヤノンメディカルシステムズ株式会社 | 受信コイル及び磁気共鳴イメージング装置 |
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DE4435104A1 (de) * | 1994-09-30 | 1996-04-04 | Siemens Ag | Pulssequenz mit Mehrschicht-Anregung |
US6977503B2 (en) | 2003-02-10 | 2005-12-20 | Quantum Magnetics, Inc. | System and method for single-sided magnetic resonance imaging |
WO2006120589A2 (en) * | 2005-04-29 | 2006-11-16 | Koninklijke Philips Electronics N.V. | Method and circuit arrangement for power monitoring in multi-channel transmit/receive antenna devices |
US7786729B2 (en) * | 2006-10-31 | 2010-08-31 | Regents Of The University Of Minnesota | Method for magnetic resonance imaging |
DE102007004620B4 (de) * | 2007-01-30 | 2010-02-04 | Siemens Ag | Verbessertes dreidimensionales schichtselektives Mehrschicht-Anregungsverfahren in der MRT-Bildgebung |
EP1962100A1 (en) * | 2007-02-20 | 2008-08-27 | Esaote S.p.A. | Magnetic structure for MRI machines and MRI machine particularly for orthopedic or rheumatologic applications |
EP2183611A1 (en) * | 2007-08-30 | 2010-05-12 | Technion Research & Development Foundation Ltd. | Ex-situ nmr spectroscopy |
WO2010114959A1 (en) * | 2009-04-02 | 2010-10-07 | Mayo Foundation For Medical Education And Research | Single-sided magnetic resonance imaging system suitable for performing magnetic resonance elastography |
DE102013202217B4 (de) | 2013-02-12 | 2015-05-28 | Siemens Aktiengesellschaft | MR-Anlage mit gepulsten Ausgleichsmagnetfeldgradienten |
DE102013210381B3 (de) * | 2013-06-05 | 2014-05-28 | Siemens Aktiengesellschaft | Signalübertragung von und zu einer Lokalspule einer Magnetresonanzanlage |
EP3011356A1 (en) * | 2013-06-19 | 2016-04-27 | Yeda Research and Development Co., Ltd. | Methods for spatial and spectral selectivity in magnetic resonance imaging and spectroscopy |
CN103885017B (zh) * | 2014-02-20 | 2017-02-22 | 厦门大学 | 基于单扫描正交时空编码磁共振成像的图像畸变校正方法 |
CN104965184B (zh) * | 2015-05-25 | 2017-10-10 | 厦门大学 | 基于时空编码单扫描磁共振成像的螺旋采样及重建方法 |
CN105004748B (zh) * | 2015-07-23 | 2017-04-05 | 厦门大学 | 一种在不均匀磁场下获取二维核磁共振相干谱图的方法 |
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JP7166083B2 (ja) * | 2018-06-18 | 2022-11-07 | 富士フイルムヘルスケア株式会社 | アレイコイル及び磁気共鳴撮像装置 |
EP3924745A4 (en) | 2019-02-15 | 2022-10-19 | Promaxo, Inc. | SYSTEMS AND METHODS FOR ULTRA-LOW FIELD RELAXATION DISPERSION |
USD895803S1 (en) | 2019-02-21 | 2020-09-08 | Promaxo, Inc. | Analytical device |
US11656303B2 (en) | 2019-02-22 | 2023-05-23 | Promaxo, Inc. | Pseudo-birdcage coil with variable tuning and applications thereof |
MX2021010072A (es) | 2019-02-22 | 2021-12-10 | Promaxo Inc | Sistemas y métodos para la realización de imágenes por resonancia magnética. |
CN113766875B (zh) | 2019-03-25 | 2022-12-06 | 普罗马克索公司 | 用于在单面mri系统中进行体积采集的系统和方法 |
US11609291B2 (en) | 2019-03-25 | 2023-03-21 | Promaxo, Inc. | Single-sided fast MRI gradient field coils and applications thereof |
-
2020
- 2020-03-25 CN CN202080022187.9A patent/CN113766875B/zh active Active
- 2020-03-25 SG SG11202109926U patent/SG11202109926UA/en unknown
- 2020-03-25 BR BR112021017970A patent/BR112021017970A2/pt unknown
- 2020-03-25 KR KR1020217032046A patent/KR102436951B1/ko active IP Right Grant
- 2020-03-25 EP EP20778407.5A patent/EP3946042A4/en active Pending
- 2020-03-25 KR KR1020227028906A patent/KR20220123319A/ko not_active Application Discontinuation
- 2020-03-25 AU AU2020248421A patent/AU2020248421B2/en active Active
- 2020-03-25 IL IL286286A patent/IL286286B2/en unknown
- 2020-03-25 JP JP2021554385A patent/JP7133725B2/ja active Active
- 2020-03-25 CA CA3133107A patent/CA3133107C/en active Active
- 2020-03-25 US US17/438,898 patent/US11506737B2/en active Active
- 2020-03-25 IL IL297126A patent/IL297126A/en unknown
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2022
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2023
- 2023-02-23 AU AU2023201061A patent/AU2023201061A1/en active Pending
Also Published As
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AU2023201061A1 (en) | 2023-03-23 |
IL286286B2 (en) | 2023-03-01 |
MX2021011114A (es) | 2021-10-13 |
JP2022169728A (ja) | 2022-11-09 |
AU2020248421B2 (en) | 2022-11-24 |
IL297126A (en) | 2022-12-01 |
CN113766875A (zh) | 2021-12-07 |
US11506737B2 (en) | 2022-11-22 |
US11885858B2 (en) | 2024-01-30 |
JP2022521810A (ja) | 2022-04-12 |
US20220155390A1 (en) | 2022-05-19 |
CA3133107C (en) | 2023-10-17 |
CA3133107A1 (en) | 2020-10-01 |
US20230109705A1 (en) | 2023-04-13 |
IL286286B (en) | 2022-11-01 |
SG11202109926UA (en) | 2021-10-28 |
WO2020198396A1 (en) | 2020-10-01 |
EP3946042A1 (en) | 2022-02-09 |
CN113766875B (zh) | 2022-12-06 |
IL286286A (en) | 2021-10-31 |
KR20220002880A (ko) | 2022-01-07 |
KR20220123319A (ko) | 2022-09-06 |
AU2020248421A1 (en) | 2021-09-30 |
KR102436951B1 (ko) | 2022-08-26 |
KR102436951B9 (ko) | 2023-03-13 |
JP7133725B2 (ja) | 2022-09-08 |
EP3946042A4 (en) | 2022-12-28 |
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