Endoscope Trajectory Display for Turn-Back Position Tracking
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Solution Overview
Problem
Current endoscope systems struggle to accurately display the current position of the tip portion when it moves forward and backward from a turn-back position due to changes in the shape of the digestive tract, such as the stomach or large intestine, as the progress bar does not account for these changes during insertion and removal.
Innovation Solution
A processor device that calculates and displays a movement trajectory separately for the outward and return paths, using a movement state acquisition unit to track the endoscope's movement, a recognition processing unit to identify the turn-back position, and a display control unit to visualize the trajectory on a screen, including markers and inserted length scales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single progress bar is used to display the current position of the endoscope, then the display structure is simple, but the positional accuracy deteriorates when the endoscope moves forward and backward from a turn-back position due to changes in digestive tract shape
Solution Approach 1:
The single progress bar is divided into multiple separate progress bars corresponding to different paths (outward path and return path). Each progress bar independently displays the insertion depth for its specific path, allowing accurate position indication even when the digestive tract shape changes during forward and backward movement.
2Ease of operation
If the progress bar does not distinguish between outward and return paths, then the display is simple, but the ability to accurately represent the current position deteriorates when the digestive tract shape changes
Solution Approach 1:
The display dynamically adapts by providing different progress bars for outward and return paths based on the endoscope's movement direction. The system automatically determines which path the endoscope is on and displays the corresponding progress bar, maintaining simplicity while preserving accurate position information.
Data Source
AI summary
A movement trajectory calculation unit calculates a movement trajectory indicating a trajectory along which an endoscope has moved, by using a movement state of the endoscope. From an endoscopic image obtained by the endoscope, a first recognition processing unit recognizes that a tip portion of the endoscope has reached a turn-back position and recognizes which of an outward path or a return path the movement trajectory corresponds to. A display control unit displays, on a display, a movement trajectory display screen that presents the movement trajectory separately for the outward path or the return path.