Flexible Endoscope Insertion Support via Optical Shape Detection
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Solution Overview
Problem
Current insertion/removal apparatuses for flexible insertion members, such as endoscopes, lack detailed state monitoring capabilities, particularly for the insertion section and the subject being inserted into, limiting user understanding and precision during insertion and removal processes.
Innovation Solution
An apparatus and method that utilize an attention point acquisition unit, displacement acquisition unit, and determination unit to specify attention points based on the shape of the insertion member, acquiring displacement information to determine the state of the insertion member or subject, providing detailed state information for improved insertion and removal processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If shape estimation means is provided to estimate the shape of the insertion section, then the user can know the state of the insertion section, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical shape estimation systems with an optical detection system. The insertion shape detecting probe uses light transmission means (optical fibers) to detect bending angles by measuring changes in optical loss, eliminating the need for complex mechanical sensors while providing detailed state information about the insertion section.
Solution Approach 2:
The patent introduces an intermediary optical detection system that indirectly measures the state of the insertion section. Instead of directly measuring mechanical deformation, the system uses light transmission through optical fibers to detect shape changes, providing accurate state information with simpler instrumentation.
2Loss of information
If distortion gauge is attached to sensor support member to detect external force, then information on external force is acquired, but the device complexity increases
Solution Approach 1:
The patent combines multiple detection functions into a single integrated insertion shape detecting probe. The probe simultaneously detects bending angles, external forces, and insertion depth using a unified optical sensor system, reducing overall device complexity while providing comprehensive state information.
Solution Approach 2:
The insertion shape detecting probe is designed as a multi-functional device that can detect various parameters (shape, force, depth) using a single sensor system. This universal approach eliminates the need for separate specialized sensors for each measurement type.
3Reliability
If endoscope system provides shape estimation and warning functions, then user safety is improved, but the device complexity increases
Solution Approach 1:
The patent implements a feedback system where the insertion shape detecting probe continuously monitors the state of the insertion section and provides real-time information to the control unit. The system automatically warns the user when loops or abnormal states are detected, creating a closed-loop safety mechanism that enhances reliability without requiring complex external monitoring systems.
Data Source
AI summary
A supporting apparatus for supporting insertion of a flexible insertion member into a subject and removal of the insertion member includes an attention point acquisition unit, a first displacement acquisition unit and a determination unit. The attention point acquisition unit specifies at least one first attention point specified by a shape of the insertion member. The first displacement acquisition unit acquires a first displacement of the first attention point. The determination unit determines how a state of the insertion member or the subject is at a position corresponding to the first attention point, based on displacement information including information on the first displacement.