Bite Block Data Recording Device for Dental CBCT Positioning
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Solution Overview
Problem
Existing medical imaging systems struggle with unreliable patient positioning and selection of small volumes for dental CBCT, leading to increased radiation exposure due to the need for larger image volumes to compensate for positioning errors.
Innovation Solution
A bite block device with a receiving device and camera arrangement that projects into the oral cavity, allowing for precise data recording and imaging, combined with a computing unit to determine the imaging region and trajectory based on acquired data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional positioning methods (cameras, light visors) are used to assist operator positioning, then the operator can visualize the imaging area, but the positioning cannot be reliably reproduced leading to larger imaging volumes and increased radiation dose
Solution Approach 1:
The patent replaces the mechanical/optical positioning system (cameras, light visors, manual overlay) with a digital/image-based positioning system. The bite block device captures images of the oral cavity, and a computing unit processes these images to automatically determine positioning parameters and imaging trajectories, substituting manual operator judgment with automated image recognition and processing.
Solution Approach 2:
The system enables self-positioning through the bite block device that automatically captures images and allows the computing unit to autonomously determine positioning parameters and imaging trajectories without requiring manual overlay or operator interpretation, making the positioning process self-contained and reproducible.
2Reliability
If larger imaging volumes are selected to compensate for positioning errors, then reliable imaging can be achieved, but radiation exposure increases
Solution Approach 1:
The system uses feedback from captured images to automatically adjust and determine precise positioning parameters and imaging trajectories. The computing unit processes the images to provide real-time feedback on positioning accuracy, enabling the selection of minimal necessary imaging volumes while maintaining reliability through automated correction of positioning deviations.
3Ease of operation
If scout images are created with reduced dose to prepare for imaging, then tooth selection can be performed, but the dose savings are canceled out by the additional scout image dose
Solution Approach 1:
The patent replaces the scout image-based tooth selection method with direct image capture using the bite block device. The system captures images directly in the final positioning configuration, eliminating the need for separate scout images and their associated radiation dose, while still enabling tooth selection and imaging planning through the captured images.
4Ease of operation
If manual positioning methods are used, then the operator can control the imaging process, but positioning cannot be reliably reproduced
Solution Approach 1:
The system transfers the positioning function from manual operator control to automated self-positioning through the bite block device and computing unit. The device automatically captures images and the computing unit autonomously determines positioning parameters and imaging trajectories, eliminating human variability and achieving reliable reproducibility while maintaining operational simplicity.
Data Source
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AI summary
The invention relates to a device for data recording.