Medical Scanner Bed Structure With Integrated Lateral Lift Motion
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Solution Overview
Problem
Existing medical image scanning apparatus beds with lateral movement devices are heavy, prone to deformation, and have increased height due to multilayered structures, making it inconvenient to move objects deviated from the body axis and increasing exposure dose.
Innovation Solution
A bed design where the lifting and lowering device also serves as a lateral movement device, using common components to eliminate the need for intermediate frames, thereby reducing weight, deformation, and maintaining a lower bed height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multilayered structure with separate lifting and lateral movement mechanisms is used, then the lateral movement function is achieved, but the bed weight increases and bed height increases
Solution Approach 1:
The patent combines the lifting mechanism and lateral movement mechanism into a single integrated structure. The lifting rod simultaneously performs both vertical lifting motion and lateral movement, eliminating the need for separate mechanisms and intermediate frames, thereby reducing overall bed weight while maintaining both functions
Solution Approach 2:
The lifting rod is designed as a multi-functional component that performs both lifting and lateral movement operations. This universal component replaces multiple specialized parts, reducing weight while achieving the same operational capabilities
2Adaptability or versatility
If a multilayered structure with separate lifting and lateral movement mechanisms is used, then the lateral movement function is achieved, but the bed height in the lowest position increases
Solution Approach 1:
By merging the lifting and lateral movement functions into a single mechanism, the patent eliminates the need for stacked multilayered structures. The integrated lifting rod achieves lateral movement without requiring additional vertical space, thereby maintaining a lower bed height in the lowest position
3Adaptability or versatility
If a multilayered structure with numerous operating portions and intermediate supporting members is used, then the lateral movement function is achieved, but the deformation of the top board increases
Solution Approach 1:
The patent reduces the number of intermediate supporting members and operating portions by combining functions into the lifting rod. This reduction in structural elements minimizes the concentration of deformation forces on the top board, thereby reducing overall deformation and improving structural stability
Solution Approach 2:
The patent removes unnecessary intermediate frames and supporting members from the multilayered structure. By extracting these redundant components, the design reduces the number of potential deformation points and simplifies the load transmission path to the top board
Data Source
AI summary
An object of the present invention is to provide a bed for a medical image scanning apparatus including a lateral movement device which is light and has less deformation while suppressing a bed height in the lowest position of a top board. A bed for a medical image scanning apparatus includes a base 8, an upper portion frame 2 that supports a top board 1, and a lifting and lowering device 40 that is positioned between the base 8 and the upper portion frame 2 and lifts and lowers the upper portion frame 2, and the lifting and lowering device 40 includes a lateral movement device (a motor 10, a pinion gear 12, and rack 23) which relatively moves at least two members (a rail receiving block 17 and a rotation axis 18, and a rail receiving block 15 and a rotation axis 20) constituting the lifting and lowering device 40 along a direction perpendicular to a longitudinal direction of the upper portion frame 2 in the top board surface of the top board.