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公开(公告)号：US20230280390A1
公开(公告)日：2023-09-07
申请号：US18317907
申请日：2023-05-15
Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Inventor： Siming CHEN , Guoping ZHU , Jinglin WU , Biao LUO , Xu CHU
CPC classification number: G01R31/14 , G01R15/181 , G01R19/0092 , H01J35/02
Abstract: The present disclosure provides an arcing detection device. The arcing detection device may include a detection coil and a processing circuit operably connected to the detection coil. The detection coil may be configured to detect a current variation of a system. The processing circuit may be configured to determine information of an arcing event of the system based on the current variation of the system. The information of the arcing event of the system may include a position where the arcing event occurs in the system.
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公开(公告)号：US11676791B2
公开(公告)日：2023-06-13
申请号：US17181303
申请日：2021-02-22
Applicant: GE Precision Healthcare LLC
Inventor： Ian Strider Hunt , Andrew Thomas Cross
CPC classification number: H01J35/02 , F16C17/102 , F16C33/1065
Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing encased within a bearing sleeve, one of which rotates relative to the other. The stationary component, e.g., the journal bearing and/or the thrust bearing includes at least one vent groove formed therein that improves the ability of the journal bearing structure to enable gases trapped by the liquid metal within the bearing assembly to escape through the vent groove to the exterior of the X-ray tube. By adding a strategically located channel or vent groove of sufficient size in at least one of the journal bearing or the thrust bearing, the pressures resisted by the seal created between the liquid metal and the vent groove(s) in the bearing components is significantly reduced, allowing escape of the gases to avoid detrimental effects to the operation of the X-ray tube, while maintaining the load carrying capacity of the bearing assembly.
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公开(公告)号：US11612047B2
公开(公告)日：2023-03-21
申请号：US17201221
申请日：2021-03-15
Applicant: Moxtek, Inc.
Inventor： Sreeram Dhurjaty , David Hoffman , Bob West
Abstract: It would be advantageous to reduce weight and size of high voltage power supplies, to increase frequency of pulses of high voltage, and to improve control of magnitude of high voltage. The embodiments of high voltage power supplies described herein can solve these problems. The high voltage power supply can be used with an x-ray tube. The high voltage power supply can comprise an array of planar transformers each defining a stage with an AC input and a DC output. Each stage can comprise a pair of flat, coil windings adjacent one another and including a primary winding electrically-coupled to the AC input and configured to induce a current in a secondary winding. At least two stages can be electrically-coupled together in series with the DC output of one stage electrically-coupled to an input of the other stage such that a voltage is amplified across the stages.
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公开(公告)号：US11596370B2
公开(公告)日：2023-03-07
申请号：US17136699
申请日：2020-12-29
Applicant: Illinois Tool Works Inc.
Inventor： Paul Benson , Brian Girouard , Amine Belarbi
IPC: A61B6/00 , G01T1/20 , H01J35/02 , G01T7/00 , A61B6/06 , G01T1/24 , H04N5/321 , A61B6/10 , G21F1/08
Abstract: Systems and methods for digital X-ray imaging are disclosed. An example portable X-ray scanner includes: an X-ray detector configured to generate digital images based on incident X-ray radiation; an X-ray tube configured to output X-ray radiation; a computing device configured to control the X-ray tube, receive the digital images from the X-ray detector, and output the digital images to a display device; a power supply configured to provide power to the X-ray tube, the X-ray detector, and the computing device; and a frame configured to: hold the X-ray detector, the computing device, and the power supply; and hold the X-ray tube such that the X-ray tube directs the X-ray radiation to the X-ray detector.
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5.发明申请公开(公告)号：US20220151051A1
公开(公告)日：2022-05-12
申请号：US17517106
申请日：2021-11-02
Applicant: Siemens Healthcare GmbH
Inventor： Sven MUELLER , Martin KOSCHMIEDER , Marvin MOELLER , Benno CYLIAX , Stefan WILLING
Abstract: A method is for closed-loop control of an X-ray pulse chain generated via a linear accelerator system. In an embodiment, the method includes modulating a first electron beam within a first radio-frequency pulse duration, wherein the first multiple amplitude X-ray pulse is produced on modulating the first electron beam; measuring time-resolved actual values of the first multiple amplitude X-ray pulse; adjusting at least one pulse parameter as a function of a comparison of the specified multiple amplitude X-ray pulse profile and the measured time-resolved actual values; and modulating a second electron beam within a second radio-frequency pulse duration as a function of the at least one adjusted pulse parameter for production of the second multiple amplitude X-ray pulse, so the X-ray pulse chain is controlled.
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Patent Agency Ranking
公开(公告)号：US11026646B2
公开(公告)日：2021-06-08
申请号：US16269460
申请日：2019-02-06
Applicant: Illinois Tool Works Inc.
Inventor： Amine Belarbi , Jason Bourn , Paul Benson
IPC: A61B6/00 , G01T1/20 , H01J35/02 , G01T7/00 , A61B6/06 , G01T1/24 , H04N5/321 , A61B6/10 , G21F1/08
Abstract: X-ray detectors for generating digital images are disclosed. An example digital X-ray detector includes: a scintillation screen; a reflector configured to reflect light generated by the scintillation screen; and a digital imaging sensor configured to generate a digital image of the light reflected by the reflector.
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公开(公告)号：US10945329B2
公开(公告)日：2021-03-09
申请号：US16668897
申请日：2019-10-30
Applicant: Moxtek, Inc.
Inventor： Eric Miller , David S. Hoffman , Vincent F. Jones
Abstract: In order to reduce the amount of electrical insulation needed for voltage isolation of large voltages generated by a voltage multiplier, the voltage multiplier can be shaped to smooth out electric field gradients. The voltage multiplier can comprise multiple sections, each section located in a different plane. The voltage multiplier can comprise a negative voltage multiplier and a positive voltage multiplier, each inclined at different angles with respect to each other. The voltage multiplier can include a curved shape.
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公开(公告)号：US10743396B1
公开(公告)日：2020-08-11
申请号：US16821495
申请日：2020-03-17
Applicant: CANON ANELVA CORPORATION
Inventor： Junya Kawase
Abstract: An X-ray generation apparatus includes an X-ray generation tube including a cathode having an electron emitting portion, and an anode having a target, a voltage supply supplying voltage to the X-ray generation tube via a conductive line, a storage container having a first portion forming a first space storing the voltage supply, a second portion forming a second space storing the X-ray generation tube, and a connecting portion connecting the first portion and the second portion, and an insulating liquid filling internal space of the storage container. The connecting portion includes a convex portion pointed toward the internal space. The cathode is arranged between the convex portion and the anode, and an insulating member is arranged to surround portion of the conductive line and block shortest path between the conductive line and the convex portion.
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公开(公告)号：US10652989B2
公开(公告)日：2020-05-12
申请号：US16385057
申请日：2019-04-16
Applicant: Siemens Healthcare GmbH
Inventor： Stefan Waffler
Abstract: A circuit arrangement includes an X-ray tube, including a cathode and an anode, and a high-voltage transformer. In an embodiment, the high-voltage transformer includes at least one primary winding, at least one first secondary winding, including a first oscillating circuit, wherein the first oscillating circuit includes a first leakage inductance and a first winding capacitance, to adjust a first resonance frequency, and at least one second secondary winding, including a second oscillating circuit, wherein the second oscillating circuit includes a second leakage inductance and a second winding capacitance, to adjust a second resonance frequency, the first resonance frequency matching the second resonance frequency, the first winding capacitance and the second winding capacitance differing in value and the first leakage inductance and the second leakage inductance differing in value. The first secondary winding is electrically connected to the cathode and the second secondary winding is electrically connected to the anode.
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公开(公告)号：US10602995B2
公开(公告)日：2020-03-31
申请号：US14958678
申请日：2015-12-03
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Cyril Riddell , Yves Lucien Trousset
Abstract: This invention relates to a medical imaging method comprising: emitting a radiation beam from a radiation source of a rotating gantry, preferably of a rotating C-arm, on a volume of interest, varying collimation of said emitted radiation beam so as to change at least part-time a field of view of said emitted radiation beam so that there are at least a first part and a second part of said volume of interest such that, when said first part of said volume of interest is imaged, said second part of said volume of interest is shuttered, and when said second part of said volume of interest is imaged, said first part of said volume of interest is shuttered.
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