Portable X-Ray Source with Distributed Array for Tomosynthesis
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Solution Overview
Problem
Conventional x-ray imaging systems are bulky, expensive, and limited to two-dimensional imaging, which is inadequate for dental and small-area applications, and they expose patients to high radiation doses due to the need for 360-degree scanning in CT technology.
Innovation Solution
A portable x-ray source with a distributed array of individually controllable x-ray generators that enables motion-free tomosynthesis, reducing the need for large power supplies and mechanical movement, thus minimizing radiation exposure and cost while providing high-resolution three-dimensional imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional single-source x-ray systems are used for three-dimensional imaging, then imaging capability is improved, but radiation dose increases significantly
Solution Approach 1:
The patent divides the x-ray source into multiple individual generators arranged in a distributed array. Each generator contributes to forming a complete three-dimensional image, allowing the system to achieve volumetric imaging capability without requiring a single high-dose source to perform 360-degree scanning, thereby reducing the radiation dose while maintaining imaging precision
Solution Approach 2:
The patent transitions from conventional two-dimensional planar imaging to three-dimensional volumetric imaging by using a distributed array of x-ray generators that can be independently controlled to illuminate the object from multiple angles simultaneously, enabling motion-free tomosynthesis and eliminating the need for mechanical rotation that would increase radiation exposure
2Device complexity
If conventional single-source x-ray systems are used for two-dimensional imaging, then device complexity is reduced, but imaging accuracy is insufficient for dental and small-area applications
Solution Approach 1:
The patent employs multiple individual x-ray generators in a distributed array, each capable of independent control. This segmentation allows the system to acquire projection data from multiple angles without requiring complex mechanical gantries or rotation mechanisms, achieving three-dimensional imaging capability while keeping the overall system architecture relatively simple
Solution Approach 2:
The patent replaces the mechanical rotation system (gantry) traditionally used in CT scanners with a stationary distributed array of x-ray generators. This substitution eliminates the need for complex mechanical movement and positioning systems while achieving the same multi-angle data acquisition, thereby reducing device complexity
3Area of stationary object
If conventional x-ray systems require large stand-off distance to cover sufficient area, then imaging coverage is improved, but power requirements and system weight increase
Solution Approach 1:
The patent uses multiple individual x-ray generators arranged in a distributed array, where each generator covers a specific angular sector. This segmentation allows the system to achieve wide-area coverage by combining the contributions of multiple sources positioned closer to the object, eliminating the need for a large stand-off distance and the associated heavy power supply requirements
Solution Approach 2:
The patent combines the x-ray output from multiple individual generators to create a composite image that covers the entire object of interest. By merging the contributions of multiple closely-spaced sources, the system achieves the same or greater imaging coverage as a single distant source, while significantly reducing the required stand-off distance and system weight
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 portable x-ray source significantly reduces radiation dose and cost, increases imaging accuracy, and improves patient comfort by allowing three-dimensional imaging with minimal increase in radiation exposure compared to conventional two-dimensional imaging, making it more accessible for dental and small-area applications.
Implementation Method 1
a plurality of x-ray generators 102, wherein each x-ray generator 102 is capable of producing a small cone (or 'conelet') of x-ray radiation
Data Source
AI summary
A portable x-ray imaging source (100) capable of motion-free x-ray tomosynthesis, wherein said source is suitable for dental and small body-part/small area imaging.