Endoscope Position Tracking via Magnetic Patterns

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Solution Overview

Problem

Current endoscopy technologies lack effective support for accurately tracking the movement and position of endoscope insertion parts within the body, leading to inefficiencies in procedures and potential errors during examinations.

Innovation Solution

A processing device and method that acquire and store distance, elapsed time, and event information related to endoscope movements, using magnetic patterns on the endoscope to determine movement states and positions, enabling precise control and support for endoscopy procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If magnetic patterns are used to track endoscope movement, then measurement precision of endoscope position is improved, but device complexity increases due to additional sensors and processing requirements

Engineering Contradiction:
Improveendoscope position tracking accuracyVSAvoidsystem structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical position tracking systems with a magnetic field-based detection system. Magnetic patterns are formed on the endoscope insertion part, and a magnetic sensor detects these patterns to determine position and movement, eliminating the need for complex mechanical encoders or optical tracking systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state of the endoscope by forming magnetic patterns (magnetic properties) on its surface. This allows the endoscope to carry identifiable magnetic signatures that can be detected by external sensors, enabling position tracking through magnetic field parameter changes rather than mechanical means.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If real-time tracking of endoscope movement is implemented, then reliability of examination procedure is improved, but loss of time for data processing and storage increases

Engineering Contradiction:
Improveexamination procedure accuracyVSAvoiddata processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by continuously acquiring and storing movement history data, elapsed time information, and event information during the examination. This pre-processing and organization of data during the procedure reduces the need for extensive post-examination analysis and ensures data is ready for immediate review.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system automatically acquires, stores, and manages examination data without requiring manual intervention. The processor autonomously handles data collection from magnetic sensors, timestamps events, and organizes movement history, reducing the time burden on operators while maintaining high reliability.

Inventive Principle:
Principle #25Self-service

3Loss of information

If detailed event information is recorded during examination, then information completeness is improved, but quantity of data to be managed increases

Engineering Contradiction:
Improveexamination detail retentionVSAvoiddata volume
Core Design Contradiction:
Loss of informationVSQuantity of substance

Solution Approach 1:

The patent segments examination data into distinct categories: movement history information (position and movement state), elapsed time information, and event information. This segmentation allows the system to manage different types of data separately, making it easier to process, store, and retrieve specific information types without being overwhelmed by the total data volume.

Inventive Principle:
Principle #1Segmentation

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

This solution enhances the accuracy and efficiency of endoscopy procedures by providing real-time tracking and support for endoscope movements, improving the precision of insertion and retrieval processes and facilitating better examination outcomes.

Implementation Method 1

a magnetic pattern forming unit that forms a magnetic pattern extending in a longitudinal direction of the insertion part on an outer periphery of the insertion part; and a magnetic detection unit that detects magnetic flux density

Methodology Applied
Scientific EffectMagnetic flux density detection: Magnetic Field

Data Source

PatentUS20240138702A1Processing device, endoscope device, and processing method
Publication Date: 2024.05.02 FUJIFILM CORP
  • US20240138702A1 patent drawing
  • US20240138702A1 patent drawing
  • US20240138702A1 patent drawing

AI summary

A processing device includes: a processor configured to acquire a distance from a reference position on a movement path of an endoscope to a distal end of the endoscope that is moved along the movement path, acquire an elapsed time from a start of an examination using the endoscope, acquire event information that is information on an event related to the examination in a case where the event has occurred, and perform control to store the distance, the elapsed time, and the event information in association with each other.