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    • 11. 发明申请
    • PATIENT SUPPORT DEVICE, SUCH AS A PATIENT BED, TABLE OR CHAIR FOR USE WITH MAGNETIC RESONANCE IMAGING APPARATUSES
    • 患者支持装置,如患者床,使用磁共振成像装置的桌子或椅子
    • US20110130646A1
    • 2011-06-02
    • US12917364
    • 2010-11-01
    • Fabio REZZONICOOrfeo Contrada
    • Fabio REZZONICOOrfeo Contrada
    • A61B5/055
    • A61B5/0555
    • A patient support device for use with a Magnetic Resonance Imaging apparatus includes a patient support surface and at least one receptacle for housing and/or removably coupling a coil adapted to receive signals from anatomic regions upon excitation thereof by the Magnetic Resonance Imaging apparatus, the at least one receptacle being arranged in an area of the patient support surface corresponding to a position of an anatomic region to be imaged. The receptacle is adapted for removable fastening of removably connectable bases of the receiver coil, and the base of each coil and its respective housing or coupling receptacle include complementary mechanisms for electrical connection to at least one dedicated electrical line such that the electrical connection is automatically effected when the base of each coil is fitted and/or mechanically fastened in a respective housing or coupling receptacle.
    • 用于与磁共振成像装置一起使用的患者支撑装置包括患者支撑表面和至少一个用于容纳和/或可移除地耦合线圈的容器,线圈适于在由磁共振成像装置激励时从解剖区域接收信号, 至少一个容器布置在患者支撑表面的与待成像的解剖区域的位置相对应的区域中。 该插座适于可拆卸地固定接收器线圈的可拆卸连接的基座,并且每个线圈的基部及其相应的壳体或联接插座包括用于电连接至少一个专用电线的互补机构,使得电连接被自动实现 当每个线圈的基部装配和/或机械地紧固在相应的壳体或联接容座中时。
    • 14. 发明申请
    • MRI Apparatus
    • MRI设备
    • US20100301861A1
    • 2010-12-02
    • US12784623
    • 2010-05-21
    • Stefano PittalugaAlessandro TrequattriniStefano BesioVincenzo Punzo
    • Stefano PittalugaAlessandro TrequattriniStefano BesioVincenzo Punzo
    • G01R33/48G01R33/44
    • G01R33/383G01R33/3873
    • An MRI apparatus including a magnetic structure defining a cavity for receiving a body under examination or a part thereof, a mechanism for generating a magnetic field inside the cavity, a mechanism for causing the body under examination or a part thereof to emit nuclear magnetic resonance signals, and a mechanism for receiving the nuclear magnetic resonance signals. The mechanism for generating the magnetic field includes one or more elements made of permanently magnetized material of the so-called superconducting bulk material type and, in combination therewith, a mechanism for keeping the magnetization condition of the superconducting bulk material which includes mechanisms for maintaining the temperature of the permanently magnetized material below the critical temperature thereof and for restoring the magnetization of the superconducting bulk material upon a complete or partial demagnetization.
    • 一种MRI装置,包括限定用于接收检查体的空腔的磁性结构或其一部分,用于在腔内产生磁场的机构,用于使被检体或其一部分发射核磁共振信号的机构 以及用于接收核磁共振信号的机构。 用于产生磁场的机构包括由所谓的超导散装材料类型的永久磁化材料制成的一个或多个元件,并且与其结合,用于保持超导散装材料的磁化条件的机构包括用于保持 永久磁化材料的温度低于其临界温度,并且用于在完全或部分退​​磁时恢复超导体材料的磁化。
    • 16. 发明授权
    • Magnet structure for nuclear magnetic resonance imaging apparatus
    • 核磁共振成像装置的磁体结构
    • US07772949B2
    • 2010-08-10
    • US11420740
    • 2006-05-27
    • Stefano BesioDavide CarliniAlessandro TrequattriniStefano Pittaluga
    • Stefano BesioDavide CarliniAlessandro TrequattriniStefano Pittaluga
    • H01F1/00
    • G01R33/383
    • A magnet structure for a Nuclear Magnetic Resonance imaging apparatus includes at least two opposing magnetic pole pieces, which are located at a certain distance from each other and delimit an imaging region. The pole pieces are formed by at least one massive layer of a magnetically permeable material, and at least one layer of magnetically permeable material having a pack of superimposed sheets or foils, electrically insulated from each other. Each of the sheets has cuts arranged over the surface of the sheet in positions that are at least partly non coincident with the cuts of at least one, or both adjacent sheets. The magnetically permeable sheets or foils have a first face and a second face and the cuts are so arranged on each sheet that the cuts of a sheet or foil are offset and not coincident with respect to the cuts of an adjacent sheet or foil, when said adjacent sheet is laid over the previous sheet in an overturned position, i.e. with the first face turned toward the first face of the first sheet or with the second face of said adjacent sheet turned toward the second face of the first sheet.
    • 用于核磁共振成像装置的磁体结构包括至少两个相对的磁极片,它们彼此隔开一定距离并限定成像区域。 极片由至少一个可渗透材料的块状物形成,并且至少一层导磁材料层具有彼此电绝缘的一叠重叠片或箔片。 每个片材具有在片材的表面上布置的位置,该位置与至少一个或两个相邻片材的切口至少部分地不重合。 所述导磁片或箔片具有第一面和第二面,并且所述切口被布置在每张片上,使得片或箔的切口相对于相邻片或箔的切口偏移并且不相符,当所述 相邻的片材处于翻转位置,即第一面朝向第一片材的第一面或者相邻片材的第二面转向第一片材的第二面。
    • 19. 发明授权
    • Method for determining construction parameters of magnet structures designed to generate magnetic fields in predetermined volumes of space and method for correcting magnetic fields in predetermined volumes of space, particularly in MRI apparatus
    • 用于确定设计成在预定体积的空间中产生磁场的磁体结构的构造参数的确定方法,以及用于校正预定体积的空间中的磁场的方法,特别是在MRI装置中
    • US07492158B2
    • 2009-02-17
    • US11515760
    • 2006-09-06
    • Vincenzo PunzoStefano PittalugaStefano BesioAlessandro Trequattrini
    • Vincenzo PunzoStefano PittalugaStefano BesioAlessandro Trequattrini
    • G01V3/00
    • G01R33/3802G01R33/3875
    • A method for determining construction parameters of magnet structures designed to generate magnetic fields in predetermined volumes of space, comprising the steps of: a) defining a predetermined volume of space in which a static magnetic field is to be generated; b) defining the nominal strength and profile of the magnetic field in said predetermined volume of space; c) mathematically describing the nominal magnetic field on the surface of and/or in said predetermined volume of space by using a polynomial expansion of the magnetic field-describing function, which provides a series of coefficients; d) determining the size, geometry and relative position in space of the means for generating said nominal magnetic field, with respect to the volume of space in and on which the desired, i.e. nominal magnetic field, is defined. According to the invention, the predetermined volume of space is delimited by an ideal ellipsoidal closed surface and the magnetic field is expressed by coefficients of a polynomial ellipsoidal harmonic expansion. The method may be also used as a shimming method in volumes of space ideally delimited by ellipsoidal closed surfaces, to be implemented whether or not the predetermined volume of space defined by the magnet structure is also delimited by an ideal closed surface, with an ellipsoidal or other shape.
    • 一种用于确定设计成在预定体积的空间中产生磁场的磁体结构的构造参数的方法,包括以下步骤:a)限定要在其中产生静磁场的预定体积的空间; b)限定所述预定体积的空间中的磁场的标称强度和轮廓; c)通过使用提供一系列系数的磁场描述函数的多项式展开来数学地描述和/或在所述预定体积的空间中的标称磁场; d)确定用于产生所述标称磁场的装置的空间中的尺寸,几何形状和相对位置,相对于限定期望的即标称磁场的空间体积。 根据本发明,预定体积的空间由理想的椭圆形封闭表面限定,并且磁场由多项式椭球谐波膨胀系数表示。 该方法还可以用作理想地由椭圆形封闭表面限定的空间体积中的匀场方法,以实现由磁体结构限定的预定体积的空间是否也被理想的封闭表面限定,具有椭圆形或 其他形状。