X-ray Device High-Voltage Generator Extraction
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Solution Overview
Problem
Conventional x-ray devices with ceiling-mounted sources face issues such as cumbersome and expensive high-voltage cable management, risk of injury from cable movement, and inefficient power delivery due to cable capacitance, limiting the precision and ease of dose application and gantry mobility.
Innovation Solution
A compact x-ray device design featuring a short high-voltage line with an intermediate circuit voltage generator and high-voltage generator, where the high-voltage generator is positioned near the x-ray source and connected via a conductor rail and sliding contact, reducing cable length and weight, allowing for precise dose application and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a long high-voltage cable is used to connect the x-ray source to the high-voltage generating unit, then the x-ray source can be positioned flexibly, but the cable capacitance allows residual current flow after disconnection, increasing the applied dose and reducing safety
Solution Approach 1:
The high-voltage generating unit is extracted from the ceiling gantry and positioned on the floor, separating the high-voltage generation function from the mobile x-ray source. This allows the use of a shorter high-voltage cable while maintaining positioning flexibility, thereby reducing cable capacitance and residual radiation dose.
2Ease of operation
If a relatively stiff high-voltage cable is used to ensure adequate freedom of movement, then the x-ray source can be repositioned, but excessive force is required to move the x-ray source and the cable may cause injury
Solution Approach 1:
By extracting the high-voltage generating unit from the ceiling gantry and placing it on the floor, the system can use a shorter, more flexible high-voltage cable. This reduces the force required to move the x-ray source while maintaining repositioning capability and eliminating the safety hazard of cable-related injuries.
3Loss of time
If the high-voltage generating unit is positioned on the floor rather than the ceiling, then the high-voltage cable length is reduced and disconnection is faster, but the complexity of electrical energy transmission increases
Solution Approach 1:
The electrical energy transmission system is segmented into two stages: an intermediate circuit voltage generator that converts AC voltage to intermediate circuit voltage with higher frequency, and a high-voltage generator that converts intermediate circuit voltage to high voltage. This segmentation allows for more efficient power transmission over shorter distances while enabling rapid disconnection.
Solution Approach 2:
The intermediate circuit voltage generator transforms the electrical parameters by converting AC voltage into intermediate circuit voltage with scarcely higher amplitude but significantly higher frequency. This parameter change enables more efficient power transmission through the shorter cable connection between the floor-mounted generator and ceiling x-ray source.
4Power
If a single tank x-ray tube with higher power is used to increase radiation output, then the x-ray radiation power is improved, but the increased weight prevents the ceiling gantry from being moved easily
Solution Approach 1:
The high-voltage generating unit is extracted from the ceiling gantry and positioned on the floor. This allows the use of higher power x-ray tubes without increasing the weight of the ceiling gantry, as the heavy power supply equipment is relocated. The shorter high-voltage cable connection maintains efficient power delivery while the gantry remains lightweight and mobile.
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 enables quick disconnection of the x-ray source, reduces the risk of injury, and allows for easier gantry movement with reduced force, while maintaining precise dose control and image quality, all while simplifying the installation process and minimizing structural modifications.
Implementation Method 1
The intermediate circuit voltage generator transforms the AC voltage of a supply network serving as the electrical energy supply into an intermediate circuit voltage with a scarcely higher amplitude value and a significantly higher AC voltage frequency
Implementation Method 2
The high-voltage generator generates a DC voltage with a high amplitude for the voltage supply to the x-ray tube
Implementation Method 3
An x-ray device may have an x-ray source affixed to a ceiling gantry
Data Source
AI summary
The X-ray device comprises an X-ray source and a high-voltage generator for supplying the X-ray source with voltage, wherein the high-voltage generator has an intermediate circuit voltage generator and a high-voltage generator, the high-voltage generator is connected to the X-ray source, and the intermediate circuit voltage generator is connected to the high-voltage generator, wherein the intermediate circuit voltage generator and the high-voltage generator are structurally separate and the high-voltage generator is structurally positioned near the X-ray source, thereby keeping the high-voltage line to the X-ray source short.