公开(公告)号：US09404983B2

公开(公告)日：2016-08-02

申请号：US13796784

申请日：2013-03-12

Applicant: ViewRay, Incorporated

Inventor： James F. Dempsey ,  Thomas Chmielewski

IPC: G01R33/34 ,  G01R33/48

CPC classification number: G01R33/34092 ,  G01R33/34076 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812

Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.

Abstract translation: 公开了适用于磁共振成像装置的射频线圈。 射频线圈包括通过多个导电梯级彼此电连接的第一和第二导电回路。 导电梯级各自包括相对较薄的部分，这将导致比梯级的其它较厚部分对辐射束的衰减更少。 绝缘区域也布置在由相邻梯级和导电环路束缚的射频线圈的区域中。 绝缘区域的一部分可以被配置为提供与导电梯级的较薄部分相当的辐射束衰减量。

公开(公告)号：US20140266206A1

公开(公告)日：2014-09-18

申请号：US13796784

申请日：2013-03-12

Applicant: VIEWRAY, INCORPORATED

Inventor： James F. Dempsey ,  Thomas Chmielewski

IPC: G01R33/34

CPC classification number: G01R33/34092 ,  G01R33/34076 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812

Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.

Abstract translation: 公开了适用于磁共振成像装置的射频线圈。 射频线圈包括通过多个导电梯级彼此电连接的第一和第二导电回路。 导电梯级各自包括相对较薄的部分，这将导致比梯级的其它较厚部分对辐射束的衰减更少。 绝缘区域也布置在由相邻梯级和导电环路束缚的射频线圈的区域中。 绝缘区域的一部分可以被配置为提供与导电梯级的较薄部分相当的辐射束衰减量。

公开(公告)号：US20160146911A1

公开(公告)日：2016-05-26

申请号：US14555205

申请日：2014-11-26

Applicant: ViewRay Incorporated

Inventor： Thomas Chmielewski ,  James F. Dempsey

IPC: G01R33/36 ,  A61B5/055 ,  A61N5/10

CPC classification number: A61B5/055 ,  A61N5/1049 ,  A61N2005/1055 ,  G01R33/34007 ,  G01R33/3415 ,  G01R33/4808

Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.

Abstract translation: 射频接收线圈组件可以包括在节点处电连接的第一导电回路和第二导电回路。 第一和第二导电环路可以延伸到射频接收线圈组件的处理束区域，一个或多个电离辐射束通过该区域通过。 第一导电环路和第二导电环路可以彼此重叠以提供电磁隔离和/或可以使用与共用电容器组合的公共导体，以提供与共享电容器或其它电气部件的电磁隔离以及任何导电环路 重叠，位于处理束区域外部。 除了其它可能的优点之外，这些特征可以通过射频接收线圈组件使电离辐射束的衰减最小化和均匀化。