IP Library Granted Patent US 9,423,477
Granted Patent B2
US 9,423,477 · App. 14/452,416 · Granted Aug 23, 2016

Split magnetic resonance imaging system

Inventors: James F. Dempsey (Chagrin Falls, OH); John L. Patrick (Chagrin Falls, OH); Shmaryu M. Shvartsman (Highland Heights, OH); Gordon D. DeMeester (Wickliffe, OH)
Assignee: ViewRay Technologies, Inc.
G01R33/3802A61B5/055G01R33/3806G01R33/3856G01R33/4808A61N2005/1055
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Quick Facts
Patent No.
US 9,423,477
App. No.
14/452,416
Granted
Aug 23, 2016
Kind
B2
Abstract

A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings.

Claims (31)

1. A magnetic resonance imaging (MRI) system comprising:

a first main MRI magnet disposed within a first MRI magnet housing;

a second main MRI magnet disposed within a second MRI magnet housing separated by a gap from the first MRI magnet housing;

a first plurality of buttress assemblies attached to an outer surface of the first MRI magnet housing, the first plurality of buttress assemblies configured to support the first MRI magnet housing;

a second plurality of buttress assemblies attached to an outer surface of the second MRI magnet housing, the second plurality of buttress assemblies configured to support the second MRI magnet housing, and wherein at least one of the first and second plurality of buttress assemblies comprises an interior through which one or more conduits is routed; and

a plurality of buttress connectors extending between the respective first and second plurality of buttress assemblies,

wherein at least one of the first plurality of buttress assemblies is removably attached to the outer surface of the first MRI magnet housing and at least one of the second plurality of buttress assemblies is removably attached to the outer surface of the second MRI magnet housing.

2. The MRI system of claim 1 , wherein each of the plurality of buttress connectors attaches to one of the first plurality of buttress assemblies and/or one of the second plurality of buttress assemblies.

3. The MRI system of claim 2 , wherein each of the plurality of buttress connectors attaches to one of the first plurality of buttress assemblies and/or one of the second plurality of buttress assemblies by one or more removable connection devices.

4. The MRI system of claim 1 , further comprising a gantry positioned in the gap.

5. The MRI system of claim 4 , further comprising a radiation therapy device supported by the gantry.

6. The MRI system of claim 1 , further comprising a cooling system, the cooling system including fluid conduit for carrying coolant for cooling the first and second main MRI magnets.

7. The MRI system of claim 6 , wherein the fluid conduit extends from within the first MRI magnet housing to within the second MRI magnet housing by routing through the interior of the at least one of the first plurality of buttress assemblies and routing through the interior of the at least one of the second plurality of buttress assemblies.

8. The MRI system of claim 1 , further comprising a power system, the power system including electrical conduit for providing electrical power to the first and second main MRI magnets.

9. The MRI system of claim 8 , wherein the electrical conduit extends from within the first MRI magnet housing to within the second MRI magnet housing by routing through the interior of the at least one of the first plurality of buttress assemblies and routing through the interior of the at least one of the second plurality of buttress assemblies.

10. The MRI system of claim 8 , wherein the first and second MRI magnet housings are separated along a longitudinal axis of the system and wherein the first and second main MRI magnets are disposed about the longitudinal axis.

11. The MRI system of claim 1 , wherein the first and second MRI magnet housings are substantially cylindrical such that a patient bed of the system extends through a center of the first and second MRI housings.

12. A magnetic resonance imaging (MRI) system comprising:

a first main MRI magnet surrounded by a first MRI magnet housing;

a second main MRI magnet surrounded by a second MRI magnet housing and separated from the first MRI magnet housing by a MRI magnet gap;

a first buttress assembly removably attached to an outer surface of the first MRI magnet housing;

a second buttress assembly removably attached to the first buttress assembly and removably attached to an outer surface of the second MRI magnet housings; and

a cooling system including a fluid conduit for carrying coolant for cooling the first and second main MRI magnets that routes through an interior of at least one of the first and second buttress assemblies.

13. The MRI system of claim 12 , wherein the second buttress assembly is removably attached to the first buttress assembly by a buttress connector that is removably attached to the first and second buttress assemblies.

14. The MRI system of claim 13 , wherein the fluid conduit extends from within the first MRI magnet housing to within the second MRI magnet housing by routing through an interior of the first buttress assembly, the second buttress assembly and the buttress connector.

15. The MRI system of claim 14 , wherein the fluid conduit has a connector positioned near one or more disassembly points of the first buttress assembly and near one or more disassembly points of the second buttress assembly.

16. The MRI system of claim 12 , further comprising a power system, the power system including electrical conduit for providing electrical power to the first and second main MRI magnets.

17. The MRI system of claim 16 , wherein the electrical conduit extends from within the first MRI magnet housing to within the second MRI magnet housing by routing through an interior of at least one of the removably attached buttress assemblies.

18. The MRI system of claim 12 , wherein the first and second MRI magnet housings are substantially cylindrical such that a patient bed of the system extends through a center of the first and second MRI housings.

19. The MRI system of claim 12 , wherein the first buttress assembly extends radially from the outer surface of the first MRI magnet housing, and the second buttress assembly extends radially from the outer surface of the second MRI magnet housing.

20. The MRI system of claim 12 , further comprising a gantry positioned in the MRI magnet gap and a radiation therapy device supported by the gantry.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2024
From: VIEWRAY, INC.; VIEWRAY TECHNOLOGIES, INC.
To: VIEWRAY SYSTEMS, INC.
Reel/Frame 067096/0625 →
SECURITY INTEREST Recorded Mar 24, 2023
From: VIEWRAY TECHNOLOGIES, INC.; VIEWRAY, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 063157/0703 →
RELEASE OF SECURITY INTEREST IN SPECIFIED PATENTS Recorded Dec 28, 2018
From: CAPITAL ROYALTY PARTNERS II L.P.; CAPITAL ROYALTY PARTNERS II (CAYMAN) L.P.; PARALLEL INVESTMENT OPPORTUNITIES PARTNERS II L.P.; CRG ISSUER 2015-1
To: VIEWRAY, INC.; VIEWRAY TECHNOLOGIES, INC. (F/K/A VIEWRAY INCORPORATED)
Reel/Frame 047990/0423 →
CHANGE OF NAME Recorded Jul 13, 2016
From: VIEWRAY INCORPORATED
To: VIEWRAY TECHNOLOGIES, INC.
Reel/Frame 039336/0688 →
SHORT-FORM PATENT SECURITY AGREEMENT Recorded Jun 26, 2015
From: VIEWRAY INCORPORATED
To: CAPITAL ROYALTY PARTNERS II L.P.; CAPITAL ROYALTY PARTNERS II - PARALLEL FUND "A" L.P.; CAPITAL ROYALTY PARTNERS II (CAYMAN) L.P.; PARALLEL INVESTMENT OPPORTUNITIES PARTNERS II L.P.
Reel/Frame 036020/0331 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2014
From: DEMPSEY, JAMES F.; PATRICK, JOHN L.; SHVARTSMAN, SHMARYU M.; DEMEESTER, GORDON D.
To: VIEWRAY INCORPORATED
Reel/Frame 033939/0833 →
Continuity (3)
Continuation 13034377 · Feb 24, 2011
Provisional Application 61307665 · Feb 24, 2010
Related Publication 20140347053A1 · Nov 27, 2014