Magnetic Resonance Patient Table Force Adjustment for Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During the movement of a patient table in a magnetic resonance apparatus, potential collisions with surrounding units or protruding body parts can lead to injuries or damage, as existing systems apply a maximum driving force irrespective of the patient's actual weight and position, failing to adapt to disturbances.
Innovation Solution
A method and apparatus that adjust the driving force based on position-relevant and drive-relevant patient data, including weight, size, and accessory units, to ensure a minimum required force for safe movement, with automatic detection and response to disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a maximum driving force is applied to move the patient table, then the patient table can be moved reliably even with heavy patients, but this may cause collisions with surrounding units or injury to protruding body parts
Solution Approach 1:
The driving force is made dynamic rather than static. The control unit continuously adjusts the driving force based on real-time feedback from sensors detecting patient weight, table position, and movement resistance. This allows the system to apply maximum force only when necessary while reducing force during normal operation to prevent injuries and collisions.
Solution Approach 2:
A feedback mechanism is implemented where sensors monitor patient data (weight, position) and table movement characteristics (resistance, speed). This information is fed back to the control unit which automatically adjusts the driving force accordingly. The feedback loop enables the system to respond to disturbances and adapt to changing conditions during patient table movement.
2Object-affected harmful factors
If the driving force is reduced to prevent injuries, then patient safety improves, but the system cannot handle heavy patients or overcome resistance from protruding body parts
Solution Approach 1:
The driving force is dynamically adjusted based on detected patient weight and movement conditions. When heavy patients are detected or when resistance increases (indicating protruding body parts), the control unit automatically increases the driving force to overcome the additional load while maintaining safety through continuous monitoring.
Solution Approach 2:
The system changes the driving force parameter based on detected conditions. Sensors measure patient weight, table position, and movement resistance, and the control unit adjusts the driving force parameter in real-time to match the actual load and environmental conditions, ensuring both safety and adequate moving capability.
3Adaptability or versatility
If the system automatically adjusts driving force based on patient data, then safety and adaptability improve, but the device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it processes patient weight data, determines table position, monitors movement resistance, adjusts driving force, and detects disturbances. By making the control unit multi-functional, the patent avoids adding separate dedicated systems for each function, thereby limiting the increase in device complexity while achieving high adaptability.
Solution Approach 2:
The patent combines sensors for weight detection, position detection, and resistance monitoring into an integrated system that feeds into a single control unit. This merging of detection and control functions reduces the overall system complexity compared to having separate independent systems for each function.
Data Source
AI summary
In a method for adjusting a driving force for moving a patient table of a magnetic resonance apparatus, position-relevant and/or drive-relevant patient data is provided, a minimum required driving force is determined based on the provided position-relevant and/or drive-relevant patient data, the minimum required driving force for moving the patient table is determined, and the patient table is moved with the minimum required driving force.