CT and Panoramic Detector Positioning Mechanism
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Solution Overview
Problem
Existing combined panoramic, CT, and cephalometric imaging systems require manual repositioning of sensors, which complicates the imaging process and compromises image quality due to the need for a single expensive detector capable of performing multiple functions and uniform source-detector distances.
Innovation Solution
A combined imaging apparatus with a rotary arm supporting both CT and panoramic detectors, along with a detector positioning apparatus that automatically translates the detectors into optimal positions for each imaging mode, allowing for improved sensor placement and automation of the setup process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single detector is used for both CT and panoramic imaging, then device complexity is reduced, but image quality deteriorates and detector cost increases
Solution Approach 1:
The imaging system is segmented into separate CT and panoramic imaging paths, each with its own optimized detector. The CT detector and panoramic detector are physically separated and can be independently positioned and configured for their respective imaging modalities, allowing each detector to be optimized for its specific function without compromising the other.
Solution Approach 2:
The imaging apparatus is designed with multi-functionality by incorporating both CT and panoramic imaging capabilities within a single integrated system. The system can switch between different imaging modes by positioning the appropriate detector in the imaging path, providing universal diagnostic functionality while maintaining optimized image quality for each mode.
2Ease of operation
If manual repositioning of sensors is required for different imaging modes, then ease of operation deteriorates, but device complexity is reduced
Solution Approach 1:
The detector positioning system employs dynamic mechanisms that allow automatic adjustment of detector positions based on the selected imaging mode. The system transitions from static, manually-positioned detectors to dynamically adjustable detectors that can be automatically moved to optimal positions for CT or panoramic imaging, improving ease of operation while managing complexity through automated control.
Solution Approach 2:
The imaging system incorporates self-service capabilities where the detector positioning mechanism automatically adjusts detector locations based on the selected imaging mode without requiring manual intervention. The system self-regulates the positioning process, reducing operational complexity while improving ease of use through automated mode-dependent detector placement.
3Device complexity
If uniform source-detector distance is used for both imaging modes, then device complexity is reduced, but image quality deteriorates
Solution Approach 1:
The system implements local quality optimization by allowing different source-detector distances for CT and panoramic imaging modes. Each imaging mode has its own optimized distance configuration, with the CT detector positioned at a distance optimized for cross-sectional imaging and the panoramic detector positioned at a distance optimized for wide-area imaging, thereby improving image quality for each specific application.
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
Simplifies the operator's task of positioning components and enhances image quality by enabling precise detector placement for each imaging type, facilitating automation and reducing manual intervention.
Implementation Method 1
an x-ray source, operable to provide exposure radiation along an exposure path
Implementation Method 2
an x-ray detector for detecting x-rays having passed through the subject
Data Source
AI summary
A combined imaging apparatus for x-ray imaging of a subject in multiple modes has a supporting structure having an extended rotary arm, wherein the rotary arm has a computed tomography detector and a panoramic imaging detector, both mounted adjacently against a movable platen. A detector positioning apparatus is actuable to translate the position of the movable platen to either of at least first and second positions with respect to an x-ray source. The first position disposes the computed tomography detector in the direct path of an x-ray source and the second position disposes the panoramic imaging detector in the direct path of the x-ray source.