Split MRI Magnet Housings with Removable Buttress Assemblies

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing MRI systems are difficult to move and install due to their large components, which limits their maneuverability and installation in existing spaces with limited access.

Innovation Solution

A split MRI system configuration with removably attached buttress assemblies connecting two main MRI magnet housings, allowing for disassembly and reassembly, and incorporating a gantry for radiation therapy, enabling easier relocation and installation while maintaining magnetic field uniformity and avoiding obstruction of radiation beams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If MRI systems use large components to maintain magnetic field uniformity and functionality, then MRI quality and radiation therapy delivery are preserved, but the systems become difficult to move and install in existing spaces

Engineering Contradiction:
Improveease of relocation and installationVSAvoidlarge component size
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The MRI system is divided into two separate main magnet assemblies (first and second main MRI magnets) housed in individual housings. These modular units can be moved and installed separately through existing access points, then connected via buttress assemblies to form the complete system. This segmentation allows each component to be smaller and more maneuverable while maintaining the overall functionality of the MRI system.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the MRI system is split into separate magnet housings to improve maneuverability, then ease of installation is improved, but magnetic field uniformity may deteriorate

Engineering Contradiction:
Improveease of installationVSAvoidmagnetic field uniformity
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

Buttress assemblies serve as intermediary structures connecting the first and second main MRI magnet housings. These buttress assemblies include positioning and alignment features that ensure precise relative positioning of the separate magnet housings, thereby maintaining magnetic field uniformity despite the modular split configuration. The buttress assemblies act as mediators that bridge the gap between the separated components while preserving the integrity of the magnetic field.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If removably attached buttress assemblies are used to enable disassembly, then ease of relocation is improved, but structural stability may worsen

Engineering Contradiction:
Improveease of disassemblyVSAvoidstructural stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The buttress assemblies are designed with removable attachment mechanisms that allow the system to transition between a stable assembled state and a disassembled state for relocation. During operation, the removable attachments provide sufficient structural stability to maintain magnetic field uniformity and support the gantry, while enabling complete disassembly when relocation is required. This dynamic design allows the structure to adapt between stability and mobility as needed.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3572823B1Split magnetic resonance imaging system
Publication Date: 2022.04.06 VIEWRAY TECHNOLOGIES INC
  • EP3572823B1 patent drawingFigure 1A
  • EP3572823B1 patent drawingFigure 1B
  • EP3572823B1 patent drawingFigure 1C

AI summary

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.