公开(公告)号：US5864273A

公开(公告)日：1999-01-26

申请号：US814909

申请日：1997-03-12

申请人： David E. Dean ,  Clifford J. Ginfrida ,  Scott Thomas Mansell ,  Thomas M. Nixon ,  Dewain A. Purgill ,  Michael James Radziun

发明人： David E. Dean ,  Clifford J. Ginfrida ,  Scott Thomas Mansell ,  Thomas M. Nixon ,  Dewain A. Purgill ,  Michael James Radziun

IPC分类号： A61B5/055 ,  F17C13/00 ,  F25D19/00 ,  G01R33/3815 ,  H01F6/00 ,  H01F6/04 ,  H01F1/00

CPC分类号： F25D19/006 ,  G01R33/3815 ,  H01F6/04 ,  Y10S505/892

摘要： Vibration and noise isolation for a magnetic resonance imager (MRI) superconducting magnet cryocooler includes a bellows between the cryocooler and its vacuum sleeve in the magnet, a mass suspended along the axis of, but at a distance from, the cryocooler, elastomeric blocks parallel to the axis, and braided copper wires connecting the vacuum sleeve and the heat shields of the MRI. Motion limiters and bellows flexures are provided for dynamic loads which might be encountered during transport of the magnet.

摘要翻译： 用于磁共振成像器（MRI）超导磁体制冷机的振动和噪声隔离包括在低温冷却器和磁体中的真空套筒之间的波纹管，沿着低温冷却器的轴线但距离冷却器一定距离的质量块，平行于 轴线和连接真空套管和MRI屏蔽层的编织铜线。 运动限制器和波纹管弯曲件用于在磁体运输过程中可能遇到的动态载荷。

公开(公告)号：US06289681B1

公开(公告)日：2001-09-18

申请号：US09441897

申请日：1999-11-17

申请人： Phillip William Eckels ,  Richard Thomas Hackett ,  Gregory F. Hayworth ,  Xianrui Huang ,  Clifford J. Ginfrida ,  Gregory Alan Lehmann ,  John Scaturro, Jr. ,  Bu-Xin Xu

发明人： Phillip William Eckels ,  Richard Thomas Hackett ,  Gregory F. Hayworth ,  Xianrui Huang ,  Clifford J. Ginfrida ,  Gregory Alan Lehmann ,  John Scaturro, Jr. ,  Bu-Xin Xu

IPC分类号： F17C502

CPC分类号： F17C3/085 ,  F17C2265/033 ,  F17C2270/0509 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  H01F6/04

摘要： A multi purpose interconnect assembly between upper and lower helium vessels in a recondensing superconducting magnet to provide isothermal connections to extend the ride-through period, and to provide for helium liquid and gas passage, electrical interconnections, and to accommodate differential thermal contraction and expansion.

摘要翻译： 在再冷凝超导磁体中的上和下氦容器之间的多用途互连组件，以提供等温连接以延长穿越周期，并提供氦气和气体通道，电互连，并适应不同的热收缩和膨胀。

公开(公告)号：US06807812B2

公开(公告)日：2004-10-26

申请号：US10391872

申请日：2003-03-19

申请人： Gregory A. Lehmann ,  Roy A. Mangano ,  Clifford J. Ginfrida ,  Kathleen W. McGuinness

发明人： Gregory A. Lehmann ,  Roy A. Mangano ,  Clifford J. Ginfrida ,  Kathleen W. McGuinness

IPC分类号： F17C502

CPC分类号： F25D19/006 ,  F25B9/10 ,  F25B9/145 ,  F25B2400/17 ,  G01R33/3815

摘要： A magnetic resonance assembly comprising, a liquid cryogen vessel, a liquid cryogen cooled conducting magnet disposed within the liquid cryogen vessel, a closed vaccum vessel surrounding the liquid cryogen vessel and spaced from the liquid cryogen vessel, a cooling device fixably attached to the vacuum vessel operable for providing cryogenic temperatures to the superconducting magnet, a heat exchanger device in thermal contact with the liquid cryogen vessel operable for heat exchange, and a bus bar in thermal contact with the cooling device and the heat exchanger device. The cooling device may be a pulse tube cryocooler capable of providing temperatures of about 4 K. A thermal bus bar of high purity aluminum or copper is used to connect and provide a spatial separation of a pulse tube cryocooler and a remote recondenser unit, thus reducing the overall height of the magnet assembly.

摘要翻译： 一种磁共振组件，包括液体冷冻剂容器，设置在液体冷冻剂容器内的液体冷冻剂冷却的导电磁体，围绕液体冷冻剂容器并与液体冷冻剂容器间隔开的封闭真空容器，可固定地连接到真空容器的冷却装置 可操作以向超导磁体提供低温温度;与可操作用于热交换的液体冷冻剂容器热接触的热交换器装置，以及与冷却装置和热交换器装置热接触的汇流条。 冷却装置可以是能够提供约4K的温度的脉冲管低温冷却器。使用高纯度铝或铜的热母线连接并提供脉冲管低温冷却器和远程再冷凝器单元的空间分离，从而减少 磁体组件的整体高度。