Endoscope Cleaning Valve Identification Using Tactile and Visual Cues
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Solution Overview
Problem
Existing cleaning valves for medical devices, such as endoscopes, are often confused with procedural valves, leading to potential incorrect use during procedures and increased reprocessing costs due to the need for separate cleaning, which complicates the reprocessing process.
Innovation Solution
The development of a cleaning valve with distinct features and indicators, including tactile and visual cues, such as different materials, shapes, colors, and removable tags, to differentiate it from procedural valves, ensuring correct identification and reducing the risk of misplacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cleaning valves are made with standard indicators, then manufacturing is simple and cost-effective, but the valves are easily confused with procedural valves leading to misuse
Solution Approach 1:
The interface member incorporates a colored band (e.g., yellow) that is visually distinct from procedural valves. This color coding provides immediate visual differentiation, ensuring correct identification of the cleaning valve without adding mechanical complexity to the valve structure.
Solution Approach 2:
The interface member features an asymmetric design with a non-circular cross-section (e.g., oval or rectangular) that differs from the circular cross-section of procedural valves. This geometric asymmetry provides tactile and visual differentiation, preventing accidental substitution of cleaning valves for procedural valves.
2Reliability
If cleaning valves have distinct features and indicators, then misidentification is prevented, but manufacturing complexity and cost increase
Solution Approach 1:
A colored band is incorporated into the interface member, which can be manufactured using standard injection molding techniques with color masterbatches. This approach adds minimal manufacturing complexity while providing robust visual differentiation to prevent valve misuse.
Solution Approach 2:
The interface member is formed with a non-circular cross-section using conventional molding processes. This asymmetric geometry provides tactile and visual cues for correct identification without requiring additional manufacturing steps or specialized equipment.
3Reliability
If cleaning valves use removable indicators like tags, then differentiation is enhanced, but the risk of indicator loss or detachment increases
Solution Approach 1:
The colored band and asymmetric geometry are integrated directly into the interface member structure as inherent features rather than separate attachable components. This merging ensures that the differentiation features cannot be lost or detached, maintaining reliable visual and tactile cues throughout the valve's service life.
Data Source
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AI summary
A medical cleaning valve (or cleaning valve) may be configured to provide cleaning functionality to air and water channels of an endoscope. One or more embodiments described herein may include cleaning valves with features and/or components that facilitate differentiating them from procedural valves. In some embodiments, valves may be made from a limited number of parts and materials, to limit their cost. For example, multiple seals may be formed as a single component, such as via overmolding. In another example, wiper seals may be used to accommodate greater manufacturing tolerances. In yet another example, the valve may have a single elastomeric component, or spring cap, which may combine the functionality of a number of components (e.g., a boot, spring, spring housing, and stem cap).