Humidification Chamber Float Retention Without Gas Port Obstruction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing humidification chamber float retention devices often lead to overfilling and obstruct the assembly of breathing tubes and adapters due to their design, which prevents factory pre-assembly and increases the risk of impact damage during transport and storage.
Innovation Solution
A water spike adapter is used to retain the float in a non-use position, inserted through a separate access opening that does not obstruct the gas ports, allowing for the pre-assembly of breathing tubes and adapters, and preventing accidental water introduction into the chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a float retainer is assembled onto the gas inlet and outlet ports to hold the float in position, then the float is protected from impact damage during transport and storage, but the float retainer obstructs the inlet and outlet ports preventing factory pre-assembly of breathing tubes and adapters
Solution Approach 1:
The invention separates the float retention function from the gas port obstruction issue by introducing a dedicated float retention opening in the chamber body. This allows the float retainer to be accessed through a separate location rather than blocking the gas inlet and outlet ports, enabling factory pre-assembly of breathing tubes and adapters while still protecting the float mechanism during transport.
Solution Approach 2:
The invention introduces an intermediary structure - a dedicated float retention opening in the chamber body - that mediates between the need to protect the float mechanism and the need to keep gas ports accessible. This intermediary allows the float retainer to be positioned and secured without interfering with the gas flow paths or blocking port access for component assembly.
2Reliability
If the float retainer holds the float in an open valve position, then the float valve mechanism is protected during transport, but the humidification chamber could overfill if water is introduced before the retainer is removed
Solution Approach 1:
The invention extracts the float retention function from the operational float valve mechanism by providing a dedicated float retention opening and retention structure. This allows the float to be held in a retained position during transport separate from its operational position, and enables clear distinction between transport mode (float retained) and operational mode (float free to regulate water level), preventing overfilling when water is introduced.
3Reliability
If port caps are used to provide an airtight seal on inlet and outlet ports, then foreign material ingress is prevented during transport and storage, but the float retainer still obstructs the ports and prevents pre-assembly
Solution Approach 1:
The invention segments the protection functions by providing separate access paths: the float retention opening allows access to the float mechanism while the gas inlet and outlet ports remain accessible for pre-assembly of breathing tubes and adapters. Port caps can be applied to the gas ports without interfering with float retention, and vice versa, allowing both protection and pre-assembly operations to occur independently.
Data Source
AI summary
A float retention arrangement and related methods for a humidification chamber that includes at least one float that operates an inlet valve that controls a flow of water through a water inlet opening of the humidification chamber. A cover of the humidification chamber defines an interior space, at least one gas port and a float retention opening. A component forms at least a portion of a water supply conduit for supplying water from a water source to the water inlet opening. The component is insertable into the float retention opening and is positionable to contact and retain the at least one float in a non-use position. In some configurations, the component can be a water spike.