C-Arm X-Ray Structure for Adjustable Source-Detector Distance
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Solution Overview
Problem
Conventional X-ray machines lack adjustable distance between the radiation source and detector, complicating diagnosis and treatment processes due to fixed settings that do not accommodate varying patient positions and shapes.
Innovation Solution
An X-ray machine with a C-shaped arm featuring movable support arms and a connecting arm, allowing for adjustable distance between the radiation source and detector through controlled movement modes, facilitated by drive devices and a key assembly for operator control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between radiation source and detector is fixed, then the device structure is simple, but it cannot accommodate different patient positions and shapes
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed C-shaped arm structure into a movable one. The first support arm can move relative to the connecting arm along a first movement path, and the second support arm can move relative to the connecting arm along a second movement path. This dynamic configuration allows the distance between the radiation source and detector to be adjusted, enabling adaptation to different patient positions and shapes while maintaining operational flexibility.
2Length of moving object
If the first support arm moves relative to the connecting arm, then the adjustable range of SID is wider, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the C-shaped arm into multiple independently movable segments: the connecting arm, the first support arm with its drive device, and the second support arm with its drive device. Each segment can move relative to the others along defined paths, allowing the distance between the radiation source and detector to be adjusted independently. This segmentation enables wider SID adjustment range while keeping each individual component relatively simple.
Data Source
AI summary
The present disclosure provides an X-ray machine, which comprises a C-shaped arm. The C-shaped arm includes a connecting arm, a first support arm, and a second support arm. The first support arm and the second support arm are separately movably connected to the connecting arm. The first support arm moves relative to the connecting arm to move close to or away from the second support arm, and the connecting arm moves to drive the first support arm to move close to or away from the second support arm. An adjustable range of a distance between the first support arm and the second support arm is wider, so that when the radiation source is arranged on the second support arm and the detector is arranged on the first support arm, an adjustable range of a distance (SID) between the radiation source and the detector is wider.