Endoscope Reprocessor Water Level Detection Drainage

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Solution Overview

Problem

Conventional endoscope reprocessors require unnecessary waiting time during the drainage process due to timer-controlled discharge methods, which can lead to inefficiencies and increased processing times.

Innovation Solution

The endoscope reprocessor incorporates a water level detection system that allows for precise monitoring of liquid levels, enabling the circulation of fluid during discharge and optimizing the timing for complete liquid removal without excess waiting, thereby reducing processing time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If timer control is used for drainage discharge, then the discharge process is simple to control, but unnecessary waiting time is required to ensure complete liquid removal

Engineering Contradiction:
Improvedrainage control simplicityVSAvoidwaiting time for complete discharge
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent employs a water level sensor that provides real-time feedback on the liquid level in the processing tank. The controller continuously monitors the sensor signal and adjusts the drainage pump operation accordingly, stopping the pump when the liquid level reaches a predetermined threshold. This feedback mechanism eliminates the need for excessive waiting time while ensuring complete liquid removal, resolving the contradiction between simple control and time efficiency.

Inventive Principle:
Principle #23Feedback

2Device complexity

If a fixed timer duration is set for drainage, then the control process is straightforward, but processing time increases due to maximum value waiting periods

Engineering Contradiction:
Improvecontrol process complexityVSAvoidreprocessing efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The water level sensor provides continuous feedback to the controller, enabling dynamic adjustment of the drainage process. The controller stops the drainage pump when the sensor detects that the liquid level has reached the predetermined threshold, rather than running a fixed timer. This maintains relatively simple control logic while dramatically improving productivity by eliminating unnecessary waiting time.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The drainage system uses the water level sensor to automatically determine when drainage should stop, making the system self-regulating. The sensor and controller work together to monitor and adjust the drainage process without requiring complex external control mechanisms, thereby maintaining simplicity while enhancing efficiency.

Inventive Principle:
Principle #25Self-service

3Loss of time

If water level detection is implemented, then discharge timing can be optimized, but device complexity increases

Engineering Contradiction:
Improvedrainage waiting timeVSAvoidsystem component count
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The water level sensor provides real-time feedback on liquid level, enabling the controller to optimize drainage timing by stopping the pump when the threshold is reached. This feedback mechanism reduces waiting time without requiring complex additional components, as the sensor integrates seamlessly with the existing control system.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The water level sensor enables the drainage system to self-regulate and automatically determine when to stop, reducing the need for complex external control mechanisms. The sensor integrates with the controller to create a self-service system that optimizes drainage timing while maintaining relative simplicity.

Inventive Principle:
Principle #25Self-service

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 reduces the waiting time required for the drainage process, enhancing the efficiency of endoscope reprocessing by ensuring accurate calculation of the discharge stoppage time based on actual liquid volume and flow rates, thus minimizing the overall processing duration.

Implementation Method 1

a circulation pump that transfers a fluid in the circulation conduit from the one end toward the other end

Methodology Applied
Scientific EffectPump: Pump

Implementation Method 2

a first water level detection section that detects whether or not as first water level set to be a water level that is equal to or below a boundary between the first tank and the second tank is submerged in water

Methodology Applied
Scientific EffectWater level detection:

Data Source

PatentUS9610008B2Endoscope reprocessor
Publication Date: 2017.04.04 OLYMPUS CORPORATION(JP)
  • US9610008B2 patent drawing
  • US9610008B2 patent drawing
  • US9610008B2 patent drawing

AI summary

An endoscope reprocessor includes: a processing tank including a first tank that is arranged at a lowermost tier, and a second tank that communicates with the first tank, the processing tank allowing an endoscope to be placed in the processing tank; a drainage port arranged in the first tank; a first water level detection section that detects whether or not a first water level set to be a water level that is equal to or below a boundary between the first tank and the second tank is submerged in water; a circulation port that opens at a level that is below the first water level; a circulation conduit including one end connected to the circulation port and another end that opens at a position that is above the first water level in the processing tank; and a circulation pump that is provided in the circulation conduit.