Endoscope System 3D Organ Model Lesion Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional endoscope systems face challenges in accurately positioning and recording the location of lesions within organs, particularly during repeat inspections, as they rely on manual marking on two-dimensional diagrams, which can be error-prone and time-consuming.
Innovation Solution
An endoscope system that includes an insertion portion with an objective optical window, an image pickup section, a position information acquiring section, an alignment section, and an image generating section, which aligns the objective optical window with a three-dimensional model of the organ based on internal image information and generates a two-dimensional model with the endoscopic image superimposed, allowing precise positioning and recording of lesion locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual marking on two-dimensional diagrams is used to record lesion positions, then the process is simple to operate, but the positioning accuracy is low and time-consuming
Solution Approach 1:
The patent transitions from two-dimensional diagram marking to three-dimensional spatial positioning by incorporating depth information through optical axis direction detection. The lesion position is recorded not just on a flat diagram but in 3D space using coordinates (x, y, z) that include depth, achieving accurate spatial localization of lesions within the organ cavity.
Solution Approach 2:
The patent replaces manual mechanical marking operations with automated computer-based processing. The system automatically calculates lesion positions using detected optical axis directions and pre-stored reference data, eliminating manual drawing and marking operations while improving positioning accuracy through computational methods.
2Measurement precision
If three-dimensional model alignment is implemented, then the positioning accuracy is improved, but the operation complexity increases
Solution Approach 1:
The patent performs preliminary actions by pre-storing reference data including organ shape information, coordinate system transformations, and typical optical axis directions before the actual inspection. During inspection, the system only needs to detect the current optical axis direction and automatically retrieve corresponding reference data, greatly simplifying the operational process while maintaining high positioning accuracy.
Solution Approach 2:
The patent creates a three-dimensional virtual model (copy) of the organ cavity that mirrors the actual anatomical structure. This virtual model includes pre-established coordinate systems and reference landmarks, allowing accurate lesion positioning through digital mapping without requiring complex physical measurements or manual diagramming during the procedure.
3Measurement precision
If repeat inspections are performed to observe lesion changes, then the diagnostic accuracy is improved, but the time consumption and patient burden increase
Solution Approach 1:
The patent enables accurate comparison between repeat inspections by maintaining consistent three-dimensional spatial references. Lesion positions are recorded in 3D coordinates relative to fixed anatomical landmarks, allowing precise overlay and comparison of lesions across different time points without the positioning errors that plague 2D diagram methods.
Data Source
AI summary
An endoscope system includes an insertion portion, an objective optical window, an image pickup device, a position/direction detection section that acquires position information of the objective optical window, and a memory that records the subject internal image acquired by the image pickup device in association with the position information of the objective optical window. The endoscope system aligns the position information of the objective optical window with a reference position of a predetermined organ in the subject in a coordinate system of a three-dimensional model image based on an amount of change or the like of the subject internal image information in the subject and generates an image with the subject internal image pasted onto the two-dimensional model image of the predetermined organ which is the three-dimensional model image two-dimensionally developed in which the position of the objective optical window is associated with the position in the coordinate system.