CT Gantry Dynamic Balance and Optical Path Self-Diagnosis

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current CT systems require significant human intervention for measuring and adjusting dynamic balance and optical path anomalies, which is inconvenient, inaccurate, and costly.

Innovation Solution

A CT system with a gantry, ray source, detector, controller, and processor that performs test scans to determine status characteristic indices of the optical path and dynamic imbalance, allowing for automated analysis and adjustment of dynamic balance without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Difficulty of detecting and measuring

If manual examination of optical components is performed, then detection capability is achieved, but operator attention and time consumption increase

Engineering Contradiction:
Improveoptical path anomaly detectionVSAvoidexamination time
Core Design Contradiction:
Difficulty of detecting and measuringVSLoss of time

Solution Approach 1:

The CT system performs self-diagnosis by automatically examining optical components (filter, collimator, detector) for faults, foreign objects, tilt, and security issues without requiring operator attention. The system uses its own scanning capabilities to detect anomalies in the optical path.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical examination with automated electronic detection systems. The CT scanner's ray source and detector automatically measure optical path parameters, substituting operator visual inspection and manual measurement tools with electronic sensing and processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If accessory equipment is used for examining optical components, then detection accuracy improves, but device complexity and cost increase

Engineering Contradiction:
Improveoptical component examination accuracyVSAvoidexamination equipment
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The CT system's ray source and detector serve dual purposes: they perform both normal medical imaging and automated examination of optical components. The same hardware used for patient scanning is utilized to detect faults, foreign objects, tilt, and security issues in the optical path, eliminating the need for dedicated examination equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If operator performs dynamic balance measurement and adjustment, then measurement is possible, but convenience and accuracy decrease

Engineering Contradiction:
Improvedynamic balance measurement accuracyVSAvoidmeasurement operation convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The CT system automatically measures and adjusts its own dynamic balance without operator intervention. The control system processes scanning data to determine dynamic imbalance amounts and coordinates adjustment mechanisms to correct the imbalance, making the system self-regulating.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses feedback from scanning data to automatically adjust dynamic balance. The control system continuously monitors vibration and position data during rotation, compares it against optimal values, and makes real-time adjustments to counterweights or balancing mechanisms to minimize imbalance.

Inventive Principle:
Principle #23Feedback

4Ease of operation

If human intervention is used for dynamic balance adjustment, then adjustment is possible, but time consumption and cost increase

Engineering Contradiction:
Improvedynamic balance adjustmentVSAvoidadjustment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The CT system performs automatic dynamic balance adjustment without requiring operator involvement. The control system autonomously processes measurement data, determines the required adjustment magnitude and direction, and actuates balancing mechanisms to correct the imbalance, eliminating manual intervention entirely.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs dynamic balance measurement and adjustment during routine operation or idle periods without requiring separate maintenance sessions. By integrating balance correction into normal system operation, the adjustment occurs proactively before imbalance affects imaging quality or causes mechanical wear.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system reduces human intervention, increases accuracy, and lowers costs by automatically detecting and adjusting optical path abnormalities and dynamic balance issues within the CT system.

Implementation Method 1

a ray source, the ray source is configured to generate a plurality of rays

Methodology Applied
Scientific EffectX-ray generation: X-Ray

Data Source

PatentUS11399781B2Methods and systems for CT balance measurement and adjustment
Publication Date: 2022.08.02 SHANGHAI UNITED IMAGING HEALTHCARE
  • US11399781B2 patent drawing
  • US11399781B2 patent drawing
  • US11399781B2 patent drawing

AI summary

The present application discloses a method for detecting an abnormity in an optical path or measuring and adjusting of a dynamic balance of a gantry in a CT system, comprising performing, by a gantry controlled by a controller, a test scan along an optical path of the CT system, the optical path being a path along which rays pass from a ray source to a detector. The method further comprises obtaining, by a processor, data relating to the test scan, and based on the data relating to the test scan. The method further comprises determining, by the processor, a status characteristic index of the optical path or an amount of dynamic imbalance of the gantry. The method further comprises analyzing, by the processor, a result of the status characteristic index; determining, by the processor, whether the optical path is abnormal, or determining whether a dynamic balance of the gantry satisfies a requirement based on a result of the analysis of the amount of dynamic imbalance.