Shielded Connection Line for MRI Systems
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Solution Overview
Problem
Magnetic resonance tomography systems face challenges with expensive and laborious coaxial cable plug systems, which are difficult to clean and disinfect due to complex three-dimensional structures, and do not facilitate frequent changes of local coils, affecting signal transmission and noise ratio.
Innovation Solution
A shielded connection line with a signal conductor and a conductive shield, featuring a plug-in connector with multiple connection contacts arranged in a two-dimensional matrix, providing effective shielding and maintaining high-frequency properties, and including spring contacts and retaining elements for secure and easy connection, allowing for a simpler, cost-effective, and easily cleanable solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coaxial cable plug systems are used for signal transmission, then signal transmission quality is maintained, but the plug systems become expensive and laborious to manufacture
Solution Approach 1:
The connection line is divided into modular components: a plug-in connector with multiple connection contacts, a socket, and a connection cable. This segmentation allows for simpler, standardized manufacturing of each component while maintaining overall system reliability for signal transmission.
2Reliability
If coaxial cable plug systems with complex three-dimensional structures are used, then signal transmission is ensured, but cleaning and disinfection become difficult
Solution Approach 1:
The connection contacts are arranged in a two-dimensional matrix pattern on the plug-in connector surface, transforming the traditional three-dimensional coaxial structure into a planar configuration. This dimensional change enables easier access for cleaning and disinfection while maintaining effective signal transmission through the distributed contact array.
3Adaptability or versatility
If frequent changes of local coils are required, then adaptability is improved, but complex plug systems do not facilitate frequent actuation
Solution Approach 1:
The plug-in connector is designed as a detachable module that can be quickly connected and disconnected from the socket. This segmentation enables rapid replacement of local coils without complex manipulation, facilitating frequent changes while maintaining reliable electrical connections through the matrix arrangement of connection contacts.
4Ease of operation
If a two-dimensional matrix arrangement of connection contacts is used, then ease of cleaning is improved, but maintaining shielding effectiveness becomes challenging
Solution Approach 1:
Multiple connection contacts that would otherwise be separate signal paths are merged into a unified two-dimensional matrix structure on a single plug-in connector. This merging maintains shielding effectiveness by providing a compact, organized arrangement that can be collectively protected while enabling easier cleaning compared to multiple separate coaxial connectors.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The shielded connection line enhances signal transmission quality, reduces crosstalk, and facilitates frequent changes of local coils while maintaining high-frequency properties and ease of cleaning, improving the overall efficiency and reliability of magnetic resonance tomography systems.
Implementation Method 1
A shielded connection line has a signal conductor and a shield for the signal conductor. A shield is made from a conductive material and surrounds the signal conductor along an outer peripheral extent.
Implementation Method 2
A material that predefines the spacing and insulates the signal conductor from the shield may be located between the signal conductor and the shield.
Implementation Method 3
The signal conductor of the connection line is in galvanic contact with a first connection contact, and at least three second connection contacts adjacent to the first connection contact and surrounding the first connection contact are galvanically connected to the shield of the signal conductor.
Data Source
AI summary
A shielded connection line for a magnetic resonance tomography system includes a signal conductor, a shield for the signal conductor, and a plug-in connector. The plug-in connector has a large number of connection contacts that are arranged in a two-dimensional matrix and are electrically insulated from each other in the plug-in connector. The signal conductor is in galvanic contact with a first connection contact, and three second connection contacts adjacent to the first connection contact and surrounding the first connection contact are galvanically connected to the shield.