Absorbent-Material Humidification Conduit for Faster Local Heating
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Solution Overview
Problem
Existing respiratory humidifiers face challenges such as long heating times for adequate humidification and potential spills due to the large reservoirs required for sufficient water, which can disrupt patient sleep.
Innovation Solution
A gas humidification system utilizing a conduit with an absorbent material and a positive temperature coefficient heating element, where the absorbent material is located within or around the conduit, allowing for localized heating and reduced spill risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large reservoir is used to carry enough water for the entire therapy session, then sufficient humidification capacity is achieved, but the heating time becomes inconveniently long
Solution Approach 1:
The heating element is positioned to heat only a localized portion of the water reservoir rather than the entire volume. This creates a temperature gradient where the heating zone reaches optimal temperature quickly while the rest of the reservoir remains cooler, reducing overall heating time while maintaining sufficient humidification capacity.
Solution Approach 2:
The water reservoir is effectively segmented into a heated zone and a non-heated zone. The heating element serves only the portion of water needed for immediate humidification, separating the heating function from the storage function, thereby reducing the time required to achieve adequate heating without compromising the total water capacity.
2Quantity of substance
If a large reservoir containing water is used, then adequate humidification is provided, but water may spill out when the humidifier is moved or turned upside down
Solution Approach 1:
The absorbent material is pre-positioned within the reservoir to absorb and retain water before any movement or inversion occurs. This preliminary absorption action prevents water from freely moving and spilling, securing the water in place while maintaining the reservoir's humidification capacity.
Solution Approach 2:
An absorbent porous material is used to hold the water within the reservoir. The porous structure captures and retains water through capillary action, preventing spillage during movement or inversion while still allowing the water to be available for humidification through the reservoir walls or controlled openings.
3Stability of the object's composition
If the heating plate heats the entire reservoir, then uniform heating is achieved, but the time required for adequate humidification becomes too long
Solution Approach 1:
The heating system applies heat locally to a specific zone within the reservoir rather than uniformly heating the entire volume. This localized heating approach achieves the necessary temperature in the heating zone quickly, while the rest of the water remains at lower temperatures, significantly reducing the overall heating time while maintaining adequate humidification performance.
Solution Approach 2:
Instead of heating the entire reservoir to the optimal temperature, only a portion of the water is heated to the required temperature for effective humidification. This partial heating action is sufficient to achieve the humidification goal without the time penalty of heating the complete water volume uniformly.
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
The system achieves rapid humidification and minimizes spills by using localized heating of absorbent materials, ensuring efficient and convenient operation during respiratory therapy.
Implementation Method 1
a heating element at least in part constructed from a positive temperature coefficient-type material
Implementation Method 2
the absorbent material is located within or around the conduit, allowing for localized heating and reduced spill risk
Data Source
AI summary
A gas humidification system can have a conduit defining a gas passageway. A mass of a first absorbent material can be located in the conduit. A mass of a second absorbent material can cover at least a part of the surface of the conduit. An orifice can be located on the conduit to allow communication between the first and second absorbent materials. A heating element can be placed within, on, around, or near the first absorbent material. The heating element can heat up moisture in or on the first absorbent material such that the moisture is encouraged to join gases passing through the gas humidification system.