Breathing Assistance Liquid Containment With Offset Openings
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Solution Overview
Problem
Breathing treatment devices with integrated water supply reservoirs face issues of water spillage and liquid infiltration when moved, leading to potential damage to components.
Innovation Solution
A breathing assistance apparatus with a liquid containment compartment positioned between the flow generator and humidification compartment, featuring offset openings to prevent liquid spillage and infiltration, and a seal to minimize leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a water supply reservoir is integrated into the breathing treatment device, then humidification function is improved, but water spillage and liquid infiltration occur when the device is moved
Solution Approach 1:
The internal space is divided into multiple compartments: a liquid containment compartment for the water reservoir, a flow generator compartment, and a humidification compartment. This segmentation isolates the water supply from other components, preventing liquid infiltration while maintaining humidification functionality.
Solution Approach 2:
A liquid containment compartment acts as an intermediary barrier between the water reservoir and the flow generator. This intermediate structure contains any spilled liquid within its boundaries, preventing direct contact with sensitive electronic components.
2Ease of operation
If the device is designed to be portable and movable, then ease of operation is improved, but water may tip and spill from the reservoir
Solution Approach 1:
The liquid containment compartment is designed with walls and a bottom surface that form a protective barrier before spillage can occur. This pre-established containment structure catches and holds any liquid that tips or spills during movement, preventing harmful effects.
Solution Approach 2:
The offset positioning of openings creates a scenario where spilled liquid naturally drains toward the containment compartment rather than toward sensitive components. The harmful effect of gravity-induced spillage is converted into a beneficial self-containment mechanism.
3Quantity of substance
If openings are positioned for gas flow between compartments, then fluid flow is improved, but liquid infiltration risk increases
Solution Approach 1:
The first and second openings are positioned asymmetrically and offset from each other in at least two orthogonal spatial directions. This asymmetric arrangement ensures that gas flow paths do not align vertically, preventing liquid from draining through one opening into another compartment while maintaining adequate gas flow through both openings.
Solution Approach 2:
The openings are offset in multiple spatial dimensions (orthogonal directions) rather than being aligned in a single plane. This multi-dimensional separation creates a three-dimensional gas flow path that prevents liquid infiltration while maintaining effective gas exchange between compartments.
Data Source
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AI summary
A breathing assistance apparatus has a humidification compartment defined within a main body and is adapted to receive a humidification chamber. A flow generator is also positioned within the main body. The flow generator and the humidification compartment are fluidly connected via a liquid containment compartment which is interposed between the flow generator and the humidification compartment. The liquid containment compartment prevents water spills from the humidification chamber from reaching other areas of the breathing assistance apparatus.