Endoscope Distal Cap Detachment Jig with Locking Release

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing methods for detaching the distal end cap from the distal end portion body of an endoscope are cumbersome and prone to slippage, requiring careful attention to avoid spattering body fluids and may apply excessive load on the endoscope.

Innovation Solution

A distal end cap detachment jig with a locking release portion and a holding portion that securely engages the distal end cap, allowing for easy release from the endoscope without applying excessive force, featuring a guide portion to ensure correct alignment and a restriction portion to prevent incorrect insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the distal end cap is detached by pulling out the distal end portion body or inserting and rotating the jig to break the cap, then the distal end cap can be removed from the distal end portion body, but the operation becomes difficult due to slip and requires close attention to avoid spattering body fluid, and a large load may be applied to the endoscope

Engineering Contradiction:
Improveease of distal end cap detachmentVSAvoidrisk of slippage and fluid spatter
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The detachment jig serves as an intermediary tool between the operator and the distal end cap assembly. It includes a holding portion that securely grips the distal end cap, a locking release portion that engages with the locking mechanism, and a guide portion that ensures proper alignment. This intermediary structure eliminates direct manual manipulation of the cap itself, preventing slippage and fluid spatter while distributing forces safely.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The detachment jig is segmented into distinct functional portions: a holding portion for gripping the distal end cap, a locking release portion for disengaging the lock, and a guide portion for alignment. This segmentation allows each component to perform its specific function efficiently, improving overall operation reliability and ease of use.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the distal end cap is detached by pulling out the distal end portion body or inserting and rotating the jig to break the cap, then the distal end cap can be removed from the distal end portion body, but a large load is applied to the endoscope

Engineering Contradiction:
Improveease of distal end cap detachmentVSAvoidload on endoscope
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The detachment jig acts as a force-distributing intermediary. The holding portion securely grips the distal end cap, the locking release portion engages the locking mechanism, and the guide portion ensures proper alignment. This structured intermediary distributes the detachment forces along the insertion part rather than concentrating them, preventing excessive load on the endoscope while maintaining ease of operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If the distal end cap is detached while adhering body fluid is present, then the cap can be removed for washing, but the operation requires close attention to avoid spattering body fluid

Engineering Contradiction:
Improvewashability improvementVSAvoidbody fluid spatter risk
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The detachment jig serves as a protective intermediary during the detachment process. The holding portion securely grips the distal end cap, the locking release portion disengages the lock mechanism, and the guide portion ensures proper alignment. This structured approach prevents uncontrolled movements and slippage that could cause body fluid spatter, making the detachment process safer while maintaining washability benefits.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS12185914B2Distal end cap detachment jig and endoscope
Publication Date: 2025.01.07 FUJIFILM CORP
  • US12185914B2 patent drawing
  • US12185914B2 patent drawing
  • US12185914B2 patent drawing

AI summary

Provided are a distal end cap detachment jig and an endoscope capable of simply and easily detaching a distal end cap from a distal end portion body.A distal end cap detachment jig that is used to detach, from a distal end portion body of an endoscope insertion part, a distal end cap which is attachable to and detachable from the distal end portion body and which is provided with a locking portion for mounting capable of being locked to the distal end portion body when the distal end cap is mounted on the distal end portion body, the distal end cap detachment jig including: a jig body having an accommodation space portion of which one end is provided with an opening portion; a locking release portion provided in the jig body; and a holding portion provided in the jig body, in which in a case where the distal end cap is accommodated in the accommodation space portion, the locking release portion is in a locking release state in which locking of the locking portion with respect to the distal end portion body is released and the holding portion is in a holding state in which the distal end cap is held by the holding portion, to make the distal end cap integral with the jig body so that the distal end cap is capable of being pulled out from the distal end portion body.