Breathing Assistance Guard for Protected Liquid Chamber Access
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Solution Overview
Problem
Existing breathing assistance apparatuses face challenges in efficiently protecting the liquid chamber from user contact and facilitating easy replacement or refilling without disassembling the housing.
Innovation Solution
A breathing assistance apparatus with a guard featuring a movable barrier that covers and uncovers the liquid chamber recess, allowing easy access and protection, and is integrated with the housing without requiring disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fixed guard structure is used to protect the liquid chamber, then user safety is improved, but ease of access for refilling or replacement deteriorates
Solution Approach 1:
The guard structure incorporates a movable barrier that can transition between covering and uncovered positions. This dynamic element allows the guard to adapt its state based on operational needs - providing protection during normal use and allowing easy access when refilling or replacement is required, thereby resolving the contradiction between safety and ease of operation
2Device complexity
If the guard is integrated with the housing, then device complexity is reduced, but ease of manufacture deteriorates
Solution Approach 1:
The guard is designed as a separate, modular component that can be independently manufactured and then attached to the housing. This segmentation allows for simplified manufacturing of individual parts using appropriate processes (such as molding for the guard and machining for the housing), while the final assembly maintains a integrated appearance. The separate guard can be attached through simple fastening mechanisms, resolving the contradiction between low device complexity and ease of manufacture
Data Source
AI summary
A breathing assistance apparatus 10 has a housing 100 with a recess 108. A guard 200 is mounted to the housing 10, the guard having a base 201 and a barrier 251. At least part of the base 201 is flexible. The barrier 251 is movable between a covering position in which the barrier 251 partly covers the recess 108 and an access position in which the recess 108 is less covered or is uncovered by the barrier 251. Said at least part of the base 201 is configured to flex as the barrier 251 is moved between the covering position and the access position.