X-ray Device for Syringe Cap Cannula Alignment Detection
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Solution Overview
Problem
Existing X-ray devices for examining syringe caps with cannulas are complex and costly due to the need for two radiation sources and image evaluation circuits, making them inefficient for detecting crooked cannulas, which can compromise sterility and safety.
Innovation Solution
An X-ray device with a single source and detector, where the syringe cap is aligned coaxially with the beam path, using collimators and reference elements to determine cannula alignment, allowing for precise detection of cannula position and deflection without the need for multiple radiation sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two X-ray sources are used to examine syringe caps from two directions, then the detection accuracy of cannula alignment is improved, but the device complexity and cost increase
Solution Approach 1:
The single X-ray examination is segmented into two sequential views: an initial projection image and a subsequent lateral projection image. By dividing the examination into stages and analyzing images from different angles sequentially, the system achieves comprehensive alignment detection without requiring two simultaneous radiation sources, thus reducing device complexity while maintaining detection accuracy.
Solution Approach 2:
The system transitions from examining only in the plane perpendicular to the beam path to including lateral dimension examination. By rotating the syringe cap or detector to obtain lateral projection images, the system detects cannula alignment deviations in three-dimensional space using a single radiation source, eliminating the need for multiple sources while improving detection comprehensiveness.
2Reliability
If two radiation sources are used to ensure comprehensive cannula alignment detection, then the reliability of sterility and safety is improved, but the cost of the device increases
Solution Approach 1:
The system performs preliminary alignment detection using a single X-ray source to obtain projection images, identifies potential misalignments, and then performs targeted lateral examination only when needed. This staged approach ensures reliable detection of cannula alignment issues that could compromise sterility or safety, while avoiding unnecessary use of complex multi-source systems, thus reducing cost while maintaining high reliability.
3Device complexity
If the syringe cap is examined with a single X-ray source, then the device simplicity and cost are reduced, but the detection capability for crooked cannulas may be insufficient
Solution Approach 1:
The system dynamically adjusts the examination approach by first capturing a projection image, analyzing it for potential alignment issues, and then selectively obtaining lateral projection images based on the initial findings. This dynamic, adaptive examination sequence allows a single radiation source to achieve comprehensive detection capability equivalent to or exceeding that of fixed multi-source systems, maintaining detection precision while simplifying device structure.
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
This configuration simplifies the device, reduces costs, and ensures accurate detection of cannula alignment, preventing potential injuries and maintaining sterility by using a single X-ray source and reference elements to assess cannula position within acceptable tolerance ranges.
Implementation Method 1
X-ray device for examining syringe caps (3) with a cannula (27)... an x-ray source (5)... an x-ray detector (9)
Data Source
Figure 1~2c
Figure 3
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AI summary
An X-ray device is proposed for examining syringe caps (3) that have a cannula (27), with an X-ray source (5), an X-ray detector (9), and with a holder (39) which holds the syringe cap (3) in the beam path (13) at an examination site (15). The X-ray device is characterized by the syringe cap (3) being arranged in the beam path (13) in such a way that its longitudinal axis (17) coincides with the main axis (19) of the beam path (13).