Dual Capsule Endoscope Relay System for Extended Imaging

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Solution Overview

Problem

Capsule endoscope devices face battery depletion issues during long imaging sessions in the digestive tract, leading to insufficient diagnosis due to power constraints, as existing methods like adaptive frame rate control do not adequately address the limited battery capacity.

Innovation Solution

The implementation of a dual capsule endoscope system where the first capsule endoscope device captures images and transmits information to the second device, allowing it to start imaging or adjust frame rates based on the first device's battery status, ensuring continuous imaging through a relay system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If a single capsule endoscope device is used for imaging in the digestive tract, then the device structure remains simple, but the imaging duration is limited due to battery depletion

Engineering Contradiction:
Improveimaging durationVSAvoiddevice structure
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The imaging task is segmented across multiple capsule endoscope devices. The first capsule performs initial imaging until battery depletion, then the second capsule continues the imaging task. This segmentation allows extended total imaging duration without requiring a single complex device with large battery capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system ensures continuous imaging by transitioning from the first capsule to the second capsule when the first capsule's battery is depleted. The second capsule is introduced into the digestive tract after detecting the first capsule's battery status, maintaining uninterrupted imaging coverage.

Inventive Principle:
Principle #20Continuity of useful action

2Measurement precision

If the imaging frame rate is increased to capture more images, then the imaging quality and diagnostic capability are improved, but the power consumption increases and battery depletes faster

Engineering Contradiction:
Improveimaging qualityVSAvoidpower consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The frame rate is dynamically adjusted based on the capsule's movement speed and battery status. When movement is slow, frame rate is reduced to save power. When movement is fast or diagnostic quality is prioritized, frame rate is increased. This dynamic control optimizes the balance between imaging quality and power consumption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes imaging parameters (frame rate, resolution) based on detected conditions such as movement speed and battery remaining capacity. These parameter adjustments allow the device to maintain adequate imaging quality while adapting power consumption to available battery capacity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If the capsule endoscope device operates continuously at high power to maintain imaging quality, then diagnostic capability is preserved, but the battery depletes prematurely causing insufficient diagnosis

Engineering Contradiction:
Improvediagnostic capabilityVSAvoidbattery life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system performs preliminary detection of the first capsule's battery status and introduces the second capsule in advance before the first capsule's battery is completely depleted. This preliminary action ensures seamless transition and prevents diagnostic gaps that would occur if waiting until battery exhaustion.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from the first capsule's battery status detection to control the introduction timing and imaging parameters of the second capsule. This feedback mechanism ensures that the second capsule is activated at the optimal moment to maintain diagnostic capability while extending total operation duration.

Inventive Principle:
Principle #23Feedback

4Duration of action of moving object

If a relay system with multiple capsule endoscope devices is implemented to extend imaging duration, then the total imaging time is increased, but the system complexity and coordination requirements increase

Engineering Contradiction:
Improvetotal imaging timeVSAvoidsystem complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

Each capsule endoscope device autonomously controls its own imaging operations based on detected conditions. The second capsule independently adjusts its frame rate and imaging parameters based on detected information about the first capsule's battery status and movement, without requiring complex external coordination systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses an external device as an intermediary to receive detection information from the first capsule and transmit control instructions to the second capsule. This intermediary simplifies the coordination between capsules by providing a centralized communication interface, reducing the complexity of direct capsule-to-capsule communication.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10743752B2Endoscope system, capsule endoscope device, and method for operating endoscope system
Publication Date: 2020.08.18 OLYMPUS CORPORATION(JP)
  • US10743752B2 patent drawing
  • US10743752B2 patent drawing
  • US10743752B2 patent drawing

AI summary

An endoscope system includes a first capsule endoscope device and a second capsule endoscope device. The first capsule endoscope device is introduced into a living body before the second capsule endoscope device is introduced. The first capsule endoscope device includes a first image sensor and a first processor that controls an imaging operation by the first image sensor. The second capsule endoscope device includes a second image sensor and a second processor that performs a change process for control on an imaging operation by the second image sensor based on first information on the first capsule endoscope device.