MRI Table Positioning via Preset Distances
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Solution Overview
Problem
Current magnetic resonance system positioning technologies require repeated adjustments to align the patient's examination site with the positioning light, leading to low scanning efficiency and potential positioning deviations, especially in specialized or multi-device hospital settings.
Innovation Solution
A medical device with a movable table and a controller that pre-stores first distances of movement for different examination sites, allowing the table to be automatically moved by corresponding distances using distinct trigger modes, thereby simplifying the scanning process and eliminating the need for repeated positioning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning adjustment is used to align patient's examination site with positioning light, then positioning accuracy can be achieved, but scanning efficiency is reduced due to repeated adjustments
Solution Approach 1:
The system pre-stores multiple preset positions corresponding to different examination sites (head, chest, abdomen, limbs) in advance. When a scan is initiated, the table automatically moves to the appropriate preset position without requiring manual adjustment, thereby maintaining positioning accuracy while significantly improving scanning efficiency.
2Measurement precision
If repeated positioning operations are performed to achieve accurate alignment, then positioning precision is improved, but time consumption increases
Solution Approach 1:
Preset positions for various examination sites are determined and stored in advance in the control system. During actual scanning, the table automatically navigates to the required preset position based on the selected examination type, eliminating the need for repeated manual positioning operations and reducing time consumption while maintaining positioning precision.
3Productivity
If automatic table movement with preset distances is implemented, then scanning efficiency is improved, but positioning accuracy may be compromised
Solution Approach 1:
The system pre-calculates and stores accurate movement distances from the initial position to each preset position corresponding to different examination sites. The table moves automatically by these pre-determined distances, achieving both high scanning efficiency and accurate positioning without compromising precision.
Solution Approach 2:
The control system monitors the table's movement in real-time and adjusts the movement distance precisely to ensure the examination site aligns accurately with the positioning light at each preset position, thereby maintaining positioning accuracy while achieving automatic operation.
Data Source
AI summary
A medical device and a movement control method therefor is presented. The method includes: determining and storing first distances of movement of a table corresponding to different examination sites, wherein the different examination sites are triggered by different first trigger modes, so that the table is then moved by the corresponding first distances.