Endoscope Cleaning Tool Dual Fluid Passage Segmentation

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Solution Overview

Problem

Existing endoscope cleaning/disinfecting apparatus connection tools fail to effectively clean and disinfect both the inside of endoscope conduits and the pipe sleeve, with issues of fluid leakage and inability to discharge fluid only from the second opening, leading to incomplete cleaning and disinfection.

Innovation Solution

The endoscope cleaning/disinfecting apparatus connection tool features a dual fluid passage system with solenoid valves for controlled fluid supply, allowing selective discharge from both the first and second fluid passages to ensure thorough cleaning and disinfection of both the endoscope conduits and the pipe sleeve.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the balloon is shrunk to clean/disinfect both the pipe sleeve and endoscope conduit, then the disinfection can be sufficiently performed, but the fluid merely leaks from the second opening and cleaning cannot be positively performed

Engineering Contradiction:
Improvedisinfection effectivenessVSAvoidcleaning capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention divides the fluid discharge system into two separate openings: a first opening for discharging fluid to the inside of the endoscope conduit, and a second opening for discharging fluid to the outside surface of the pipe sleeve. This segmentation allows independent control of cleaning operations for each component, resolving the contradiction by enabling positive cleaning action through the first opening while maintaining disinfection capability through the second opening.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention applies different fluid discharge configurations to different locations: the first opening is positioned to target the interior conduit surface, while the second opening is positioned to target the exterior pipe sleeve surface. This local differentiation allows each opening to perform its specific cleaning function effectively, with the first opening enabling positive cleaning action that was previously impossible.

Inventive Principle:
Principle #3Local quality

2Device complexity

If there is no configuration for closing the first opening, then the structure is simple, but the fluid cannot be discharged only from the second opening making it impossible to positively perform cleaning of the pipe sleeve

Engineering Contradiction:
Improvestructural simplicityVSAvoidselective discharge capability
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The invention introduces solenoid valves that can dynamically open or close the first and second openings based on operational requirements. This dynamic control capability allows the system to selectively discharge fluid from either the first opening, the second opening, or both simultaneously, enabling positive cleaning of the pipe sleeve through controlled discharge from the second opening while maintaining relatively simple valve-based control mechanisms.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If fluid is supplied to both the first opening and second opening simultaneously, then both conduit and pipe sleeve can be treated, but the cleaning of pipe sleeve cannot be performed positively due to fluid leakage

Engineering Contradiction:
Improvemulti-component treatment capabilityVSAvoidcleaning effectiveness
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The solenoid valves enable dynamic control of fluid supply to each opening independently. During pipe sleeve cleaning operations, the system can close the first opening while opening the second opening, allowing fluid to be discharged exclusively to the pipe sleeve exterior for effective positive cleaning action, while still maintaining the capability to treat both components when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By segmenting the fluid discharge paths into separate first and second openings with independent control, the system can selectively activate only the second opening for pipe sleeve cleaning tasks, preventing fluid leakage issues that occur when both openings are active simultaneously, while preserving the ability to perform multi-component treatment when both openings are activated together.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2481344B1Endoscope cleaning and disinfecting system with connection tool and fluid supply apparatus
Publication Date: 2014.03.19 OLYMPUS MEDICAL SYST CORP
  • EP2481344B1 patent drawingFigure 1
  • EP2481344B1 patent drawingFigure 2
  • EP2481344B1 patent drawingFigure 3

AI summary

An endoscope cleaning/disinfecting apparatus connection tool includes: a fluid supply apparatus connection portion 5; a first fluid passage portion 3 and a second fluid passage portion 4 each including an end that is in communication with the fluid supply apparatus connection portion 5, and allowing a fluid supplied from the fluid supply apparatus 100 to pass through; an endoscope connection portion 6 including a first discharge portion 3t and a second discharge portion 4t to be connected to an opening portion 17k that is in communication with a conduit 18 included in the endoscope 10, the first discharge portion and the second discharge portion being provided at respective other ends of the first fluid passage portion 3 and the second fluid passage portion 4, the first discharge portion 3t being inserted into the opening portion 17k and discharging the fluid passed through the first fluid passage portion 3 to an inside of the conduit 18, the second discharge portion 4t being arranged at a circumference of the opening portion 17k and discharging the fluid passed through the second fluid passage portion 4 to the circumference of the opening portion 17k.