Laser Alignment for Dental X-Ray Positioning
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Solution Overview
Problem
Manual aiming of X-ray projectors in dental imaging can lead to inaccuracies and patient discomfort, as existing holders may not ensure proper orientation of X-ray film.
Innovation Solution
A system using miniature laser projectors to signal alignment of X-ray emitter with patient anatomy, processed by a microprocessor to ensure accurate positioning, eliminating the need for traditional holders and reducing discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional holders are used to ensure proper X-ray film orientation, then imaging accuracy is improved, but patient discomfort increases
Solution Approach 1:
The patent replaces the mechanical holder system with an optical guidance system using lasers and electronic image processing. Instead of physically constraining the patient with holders, the system uses laser projections to indicate positioning and electronic processing to correct orientation, eliminating mechanical contact that causes discomfort while maintaining imaging accuracy.
Solution Approach 2:
The patent creates a digital copy or representation of the desired X-ray orientation through laser projections and electronic image processing. The system projects laser guides that replicate the correct positioning information without requiring physical holders, and uses software to create a digital model of the proper film orientation relative to the patient's anatomy.
2Device complexity
If manual aiming of X-ray projector is used, then device complexity is reduced, but imaging accuracy deteriorates
Solution Approach 1:
The patent introduces laser projectors and electronic image processing as intermediary elements between the operator and the X-ray emitter positioning. The laser guides serve as a visual mediator that translates complex positioning calculations into simple visual cues, while the microprocessor acts as an intermediary that automatically performs orientation calculations, reducing the need for complex manual aiming procedures.
Solution Approach 2:
The system performs automatic orientation calculations and positioning guidance without requiring complex manual intervention. The microprocessor automatically calculates the correct X-ray emitter orientation based on laser-projected reference points, and the system self-adjusts by providing visual feedback through the laser guides, eliminating the need for complex manual aiming mechanisms.
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 system provides accurate and comfortable X-ray imaging by ensuring precise alignment of the X-ray emitter with patient anatomy, reducing inaccuracies and improving image quality.
Implementation Method 1
A plurality of points or locations on the physiology of a patient are signaled by miniature laser projectors
Data Source
AI summary
Apparatus for aiming e.g. an X-ray camera, for capturing image(s) of a physiology of a patient, and related method, are shown and described. A plurality of light projectors are mounted to the X-ray camera. When projected light beams impinge upon pre-identified reference points on the physiology of the patient, a visual indicator operates to indicate that the X-ray image may be taken. The pre-identified reference points may exist within a microprocessor associated with the X-ray camera, and may be based on an image of the physiology. The microprocessor maps the reference points to small indication areas illuminated by the light projectors. When a predetermined threshold of registration of the indication areas with the reference points exists, the visual indicator operates, whereupon the human operator may operate the X-ray camera.