MRI Bed Cable Guide for Signal Protection
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Solution Overview
Problem
The existing bed apparatus for MRI machines has a complex structure due to the need for a connection port for reception coils on the table, requiring a signal cable connection that complicates the table's driving mechanism with a guard and guide for the cable.
Innovation Solution
A bed apparatus with a cable guide that bends signal cables along with the table's movement, simplifying the structure by using a flexible cylindrical member with open-ended tubular sections connected by plate members, allowing the cables to be protected and rearranged as the table moves, thus eliminating the need for a guard and guide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a connection port for reception coil is provided on the table, then the operability and safety are improved, but the structure becomes complicated due to the need for signal cable connection with guard and guide
Solution Approach 1:
The signal cable connection function is extracted from the table structure itself and relocated to the bed supporting part. The connection port is provided on the bed supporting part instead of the table, allowing the table to be simplified while maintaining the cable connection capability through a separate mounting structure.
Solution Approach 2:
The bed supporting part serves as an intermediary structure that provides the connection port for the signal cable. This mediator structure allows the cable connection to be made outside the table's moving mechanism, eliminating the need for complex guards and guides on the table itself.
2Reliability
If a connection port for reception coil is provided on the table, then the safety is improved, but the structure becomes complicated due to the need for signal cable connection with guard and guide
Solution Approach 1:
The signal cable connection function is extracted from the table structure itself and relocated to the bed supporting part. The connection port is provided on the bed supporting part instead of the table, allowing the table to be simplified while maintaining the cable connection capability through a separate mounting structure.
Solution Approach 2:
The bed supporting part serves as an intermediary structure that provides the connection port for the signal cable. This mediator structure allows the cable connection to be made outside the table's moving mechanism, eliminating the need for complex guards and guides on the table itself.
3Ease of manufacture
If the table structure is simplified by removing the guard and guide, then the manufacturing cost is reduced, but the signal cable protection between table and bed supporting part becomes a concern
Solution Approach 1:
The signal cable connection function is extracted from the table structure itself and relocated to the bed supporting part. The connection port is provided on the bed supporting part instead of the table, allowing the table to be simplified while maintaining the cable connection capability through a separate mounting structure.
Solution Approach 2:
The signal cable is routed through a flexible protective path from the table to the bed supporting part. This flexible protection allows the cable to move with the table while being shielded from fluid and foreign substance entry, eliminating the need for rigid guards and guides.
Data Source
AI summary
According to one embodiment, a bed apparatus for a magnetic resonance imaging apparatus includes a table, a table driving mechanism, a bed supporting part, and a cable guide. The table provides a connection port for a reception coil of magnetic resonance signals. The table driving mechanism is configured to shift the table. The bed supporting part is configured to support the table. The cable guide is configured to protect a signal cable between the table and the bed supporting part and to bend a portion of the signal cable along with a move of the table. The signal cable is connected to the connection port. The portion of the signal cable corresponds to a position of the table.