Medical Imaging Gantry Dynamic Balance Adjustment
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Solution Overview
Problem
In medical imaging systems, particularly CT imaging systems, the replacement of detector assemblies can disrupt the dynamic balance of the gantry, leading to vibrations during high-speed rotation, which affects the service life of components and reduces image quality.
Innovation Solution
A data acquisition system assembly is introduced, comprising a data acquisition system, first and second plates, and a connection portion that adjusts the dynamic balance by varying the height and/or mounting position of the connection portion, ensuring proper mass distribution and balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detector assembly is replaced with a different structure, then the imaging system can be upgraded or maintained, but the dynamic balance of the gantry is disrupted
Solution Approach 1:
The patent applies counterweight principles by adding balance weights to the gantry structure to compensate for the mass distribution changes caused by detector assembly replacement. The balance weights are positioned to create counterbalancing moments that offset the imbalance introduced by the replaced detector assembly, thereby maintaining dynamic balance during rotation.
Solution Approach 2:
The patent modifies physical parameters of the gantry system, specifically the mass distribution and moment of inertia, by adjusting the position and magnitude of balance weights. This allows the system to adapt to different detector assembly configurations while maintaining dynamic balance, resolving the contradiction between replacement flexibility and balance stability.
2Measurement precision
If the rotational speed of the X-ray source and detector is increased, then the image quality is improved, but vibrations occur due to non-uniform mass distribution
Solution Approach 1:
The patent uses counterweight mechanisms to balance the non-uniform mass distribution in the gantry. By positioning balance weights to create opposing moments, the system eliminates vibrations that would otherwise occur at high rotational speeds, enabling the gantry to rotate faster without compromising image quality.
3Reliability
If the connection portion height and mounting position are adjusted, then the dynamic balance of the gantry is maintained, but the device complexity increases
Solution Approach 1:
The patent applies local quality principles by making specific localized adjustments to the connection portion's height and mounting position rather than redesigning the entire gantry structure. This targeted approach maintains dynamic balance while minimizing the increase in overall device complexity, as only specific connection parameters are modified rather than the entire system.
Data Source
AI summary
Embodiments of the present application provide a data acquisition system assembly, a gantry of a medical imaging system, and a medical imaging system. The data acquisition assembly is disposed in a gantry of a medical imaging system, and includes: a data acquisition system; a first plate, carrying the data acquisition system; a second plate, disposed opposite to the first plate; and a connection portion, disposed between the first plate and the second plate, an end of the connection portion in a height direction being connected to the first plate and the other end of the connection portion in the height direction being connected to the second plate, wherein the dynamic balance of the gantry is adjusted by setting the height and/or the mounting position of the connection portion.