Patents by Inventor Minfeng Xu
Minfeng Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170337688Abstract: A medical image processing apparatus according to an embodiment includes an estimation circuitry and a tracking circuitry. The estimation circuitry is configured to estimate the activity of the myocardium across a plurality of images at different time phases from a group of images where a plurality of images containing a myocardium are chronologically arranged. The tracking circuitry is configured to set a search range for tracking the myocardium in the group according to the activity of the myocardium and perform the tracking.Type: ApplicationFiled: July 26, 2017Publication date: November 23, 2017Applicant: Toshiba Medical Systems CorporationInventors: Hong YANG, Yanhua WANG, Minfeng XU, Bing HAN
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Patent number: 9779510Abstract: A medical image processing apparatus according to an embodiment includes an estimation circuitry and a tracking circuitry. The estimation circuitry is configured to estimate the activity of the myocardium across a plurality of images at different time phases from a group of images where a plurality of images containing a myocardium are chronologically arranged. The tracking circuitry is configured to set a search range for tracking the myocardium in the group according to the activity of the myocardium and perform the tracking.Type: GrantFiled: May 20, 2015Date of Patent: October 3, 2017Assignee: Toshiba Medical Systems CorporationInventors: Hong Yang, Yanhua Wang, Minfeng Xu, Bing Han
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Publication number: 20170276748Abstract: An MRI scanner can include a magnet assembly forming a central magnetic field area, and a slot for receiving a shim drawer formed within the central magnetic field area. There can be included a shim drawer received within the slot. The shim drawer can be configured to carry one or more metal shim and the shim drawer can be formed of conductive material.Type: ApplicationFiled: March 25, 2016Publication date: September 28, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Paul St. Mark Shadforth THOMPSON, Mark Ernest VERMILYEA, Minfeng XU
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Publication number: 20170250018Abstract: A quench protection apparatus includes a number N of superconducting coils and a heater matrix. The number N of superconducting coils are electrically coupled in series. The heater matrix module includes the number N of heater units. The number N of heater units is electrically coupled in parallel with the number N of superconducting coils respectively. A number M of the heater units each includes at least the number N of heaters. Each superconducting coil is thermally coupled with at least one heater of each of the number M of the heater units. The number of N-M of the heater units each includes at least one heater. Each of the number M of superconducting coils correspondingly coupled with the number M of the heater units is thermally coupled with at least one heater of each of the number N-M of the heater units. A superconducting magnet system protected by above quench protection apparatus is also provided.Type: ApplicationFiled: October 9, 2015Publication date: August 31, 2017Inventors: Minfeng Xu, Evangelos Laskaris, Weijun Shen, Jian-She Wang, Anbo Wu, Ye Bai, Yunxing Song
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Patent number: 9552906Abstract: In embodiments of the invention, a superconductor lead is configured to have less ohmic heating by its own current and less heat conduction from room temperature to cryogenic temperature, where a cryogenic apparatus is located. The superconducting lead with no ohmic resistance and low thermal conductivity disclosed herein maximizes current capacity by placing superconductors in parallel, each having equal current. Thus, the resistances are controlled to provide uniform current distribution through each superconductor of the high temperature superconducting (HTS) lead.Type: GrantFiled: September 1, 2015Date of Patent: January 24, 2017Assignee: General Electric CompanyInventors: Susumu Mine, Evangelos Trifon Laskaris, Minfeng Xu, Ye Bai
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Patent number: 9508477Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.Type: GrantFiled: November 3, 2014Date of Patent: November 29, 2016Assignee: General Electric CompanyInventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
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Publication number: 20160267654Abstract: A medical image processing apparatus according to one embodiment includes obtaining circuitry, calculating circuitry, and transforming circuitry. The obtaining circuitry takes an expiration time phase or an inspiration time phase as a benchmark time phase and obtains a benchmark line structure, which is a line structure of a bronchus in a lung field, from a medical image at the benchmark time phase. The calculating circuitry calculates a motion amount between a component depicted in the medical image at the benchmark time phase and a component depicted in a medical image at at least one other time phase than the benchmark time phase. The transforming circuitry transforms the benchmark line structure based on the motion amount to obtain an estimated line structure, which is estimated as a line structure at the at least one other time phase.Type: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Yanli WANG, Costas Plakas, Yanhua Wang, Shaobin Wang, Minfeng Xu, Jianchun Zhao, Qi Chen, Marco Razeto
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Publication number: 20160189841Abstract: A cooling system for a low-cryogen superconducting magnet includes a primary cooling loop having a liquid reservoir containing a supply of liquid cryogen and a plurality of cooling tubes fluidly coupled to the liquid reservoir and in thermal communication with the superconducting magnet. The liquid cryogen is configured for circulation through the cooling tubes for providing primary cooling for the magnet for cooling the magnet to a target temperature. The cooling system also includes a thermal battery coupled to a component that is cooled to the target temperature by the primary cooling loop and is configured to be cooled by the primary cooling and to absorb heat from the at least one component during an interruption in the primary cooling to maintain the magnet at approximately the target temperature.Type: ApplicationFiled: December 31, 2014Publication date: June 30, 2016Applicant: GENERAL ELECTRIC COMPANYInventors: JUN LI, EVANGELOS TRIFON LASKARIS, LONGZHI JIANG, MINFENG XU, ERNST WOLFGANG STAUTNER, ANBO WU
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Publication number: 20160125604Abstract: A medical image processing apparatus according to an embodiment includes acquisition circuitry, extraction circuitry, calculation circuitry, and determination circuitry. The acquisition circuitry configured to acquire a first photographic image and a second photographic image that contain tree structures of a subject. The extraction circuitry configured to extract branch points of each of the tree structures in the first photographic image and the second photographic image. The calculation circuitry configured to calculate the similarities between the branch points in the first photographic image and the branch points in the second photographic image based on the feature quantities of the branch points. The determination circuitry configured to determine the corresponding path between the branch points in the first photographic image and the branch points in the second photographic image based on the similarities between the branch points calculated by the calculation circuitry.Type: ApplicationFiled: October 29, 2015Publication date: May 5, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Shaobin WANG, Qi CHEN, Yang ZHANG, Yanhua WANG, Jialin ZHANG, Minfeng XU, Jianchun ZHAO, Xiaotian YANG
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Publication number: 20160063702Abstract: A medical image processing apparatus according to an embodiment includes an estimation circuitry and a tracking circuitry. The estimation circuitry is configured to estimate the activity of the myocardium across a plurality of images at different time phases from a group of images where a plurality of images containing a myocardium are chronologically arranged. The tracking circuitry is configured to set a search range for tracking the myocardium in the group according to the activity of the myocardium and perform the tracking.Type: ApplicationFiled: May 20, 2015Publication date: March 3, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Hong YANG, Yanhua Wang, Minfeng Xu, Bing Han
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Publication number: 20150072864Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.Type: ApplicationFiled: November 3, 2014Publication date: March 12, 2015Applicant: GENERAL ELECTRIC COMPANYInventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
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Patent number: 8914086Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.Type: GrantFiled: July 26, 2012Date of Patent: December 16, 2014Assignee: General Electric CompanyInventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
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Publication number: 20140334687Abstract: A medical image analysis apparatus according to an embodiment includes an area motion analysis section and an object motion analysis section. The area motion analysis section configured to carry out a motion analysis on an area including an adjacent tissue of an object in a dynamic image to obtain the motion vector of the adjacent tissue. The object motion analysis section configured to determine the motion vector of the object based on the motion vector of the adjacent tissue.Type: ApplicationFiled: May 13, 2014Publication date: November 13, 2014Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Minfeng Xu, Chao Cong, Hong Yang
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Publication number: 20140061202Abstract: A warm bore cylinder assembly having an outer wall, an inner wall, and a plurality of braces is provided. The outer wall is configured to define an inner exterior portion of a cryostat assembly. The outer wall is generally cylindrical, is made of a conductive material, and has an outer wall thickness. The inner wall is disposed radially inwardly of the outer wall. The inner wall is generally cylindrical, is made of a conductive material, and has an inner wall thickness. The braces extend along an axial direction defined by the outer wall and the inner wall. The plurality of braces are interposed between and join the outer wall and inner wall. The plurality of braces define openings disposed between adjacent braces.Type: ApplicationFiled: September 5, 2012Publication date: March 6, 2014Applicant: General Electric CompanyInventors: Jean-Baptiste Mathieu, Evangelos Trifon Laskaris, Kenneth William Rohling, Minfeng Xu, Seung-Kyun Lee
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Patent number: 8583201Abstract: A superconducting magnet includes at least one superconducting coil and a quench protection circuit electrically coupled to said at least one coil in parallel. The circuit includes at least one quench heater assembly thermally coupled to the at least one coil, and at least one superconducting current limiter electrically connected in series with the at least one quench heater assembly. The superconducting current limiter has a superconducting state with zero resistance, and a normal state with a normal resistance to decrease an electric current flowing through the quench heater assembly.Type: GrantFiled: September 20, 2011Date of Patent: November 12, 2013Assignee: General Electric CompanyInventors: Anbo Wu, Minfeng Xu, Xianrui Huang
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Publication number: 20130029849Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.Type: ApplicationFiled: July 26, 2012Publication date: January 31, 2013Inventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
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Publication number: 20120071326Abstract: A superconducting magnet includes at least one superconducting coil and a quench protection circuit electrically coupled to said at least one coil in parallel. The circuit includes at least one quench heater assembly thermally coupled to the at least one coil, and at least one superconducting current limiter electrically connected in series with the at least one quench heater assembly. The superconducting current limiter has a superconducting state with zero resistance, and a normal state with a normal resistance to decrease an electric current flowing through the quench heater assembly.Type: ApplicationFiled: September 20, 2011Publication date: March 22, 2012Inventors: Anbo WU, Minfeng XU, Xianrui HUANG
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Patent number: 8085047Abstract: A system and method for a magnetic resonance (MR) imaging system includes a coil form, at least one magnet positioned about the coil form and configured to generate a magnetic field, at least one gradient coil for manipulating the magnetic field generated by the at least one magnet by way of a gradient field, and a heat pipe thermally connected to the coil form and having a cryogen therein. The MR imaging system also includes a cryocooler connected to the heat pipe to cool the heat pipe and the cryogen, wherein the coil form is comprised of a thermally conductive material in which eddy currents are substantially reduced during operation of the at least one gradient coil. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: GrantFiled: November 10, 2008Date of Patent: December 27, 2011Assignee: General Electric CompanyInventors: Xianrui Huang, Bulent Aksel, Kathleen M. Amm, Evangelos T. Laskaris, Ernst W. Stautner, Paul S. Thompson, Anbo Wu, Minfeng Xu, Yan Zhao
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Patent number: 8018102Abstract: A superconducting field coil assembly includes a superconducting field coil disposed within a vacuum insulated electro-magnetic (EM) shielded cryostat. A water cooling jacket is thermally integrated with the outer surface of the EM shielded cryostat.Type: GrantFiled: August 11, 2008Date of Patent: September 13, 2011Assignee: General Electric CompanyInventors: Evangelos Trifon Laskaris, James Pellegrino Alexander, Kiruba Sivasubramaniam, Minfeng Xu
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Patent number: 7876100Abstract: A method and apparatus for actively controlling quench protection of a superconducting magnet includes a magnetic resonance imaging (MRI) system and a computer readable storage medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to detect a quench condition of the superconducting magnet. The instructions also cause the computer to actively control a quench protection system of the superconducting magnet in response to the detected quench condition.Type: GrantFiled: September 28, 2009Date of Patent: January 25, 2011Assignee: General Electric CompanyInventors: Xianrui Huang, Minfeng Xu