公开(公告)号：US20210096198A1

公开(公告)日：2021-04-01

申请号：US17086037

申请日：2020-10-30

Applicant: ViewRay Technologies, Inc.

Inventor： Shmaryu M. SHVARTSMAN ,  Gordon D. DEMEESTER ,  John L. PATRICK ,  James F. DEMPSEY

IPC: G01R33/38 ,  G01R33/385 ,  G01R33/421 ,  G01R33/48

Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.

公开(公告)号：US20190219650A1

公开(公告)日：2019-07-18

申请号：US16195673

申请日：2018-11-19

Applicant: ViewRay Technologies, Inc.

Inventor： Shmaryu M. SHVARTSMAN ,  Gordon D. DEMEESTER ,  John L. PATRICK ,  James F. DEMPSEY

IPC: G01R33/38 ,  G01R33/385 ,  G01R33/48 ,  G01R33/421

CPC classification number: G01R33/3806 ,  A61N2005/1055 ,  G01R33/385 ,  G01R33/3856 ,  G01R33/3858 ,  G01R33/4215 ,  G01R33/4808

Abstract: Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap.