Respiratory Mask Forehead Fixing Assembly with Selectable Connectors
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Solution Overview
Problem
Existing respiratory masks for treating sleep-disordered breathing face challenges with asymmetric pressure and air leakage due to inadequate forehead fixation, particularly in users with varying facial features, leading to complex and costly adjustable forehead fixing devices.
Innovation Solution
A simplified adjustment assembly for respiratory masks featuring a forehead fixing device with multiple connectors that can be chosen and connected based on individual forehead shapes, allowing for adjustable positioning to prevent air leakage and improve fit, while reducing the number of parts and manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adjustable forehead fixing device is provided to fit different users' foreheads, then the adaptability is improved, but the device complexity increases due to mass of parts
Solution Approach 1:
The forehead fixing device is segmented into a base body and multiple detachable connectors positioned at different heights. Each connector can be independently selected and attached to the base body, allowing the device to be customized for different forehead heights without requiring a completely different structure for each user.
Solution Approach 2:
The base body is designed as a universal component that can accommodate multiple types of connectors. This multi-functional base body can work with any of the connectors (first, second, or third connector) to provide adjustment for various forehead heights, reducing the need for multiple specialized components.
2Adaptability or versatility
If an adjustable forehead fixing device with multiple parts is provided, then the adaptability is improved, but the manufacture process becomes difficult and costly
Solution Approach 1:
The device is divided into standardized segments (base body and connectors) that can be manufactured separately using simple, standardized processes. Each connector type can be produced independently and then assembled to the base body, simplifying the manufacturing process compared to producing complex integrated adjustable mechanisms.
Solution Approach 2:
The base body integrates multiple connection interfaces and structural features that would otherwise require separate components. By merging these functions into a single base body design, the number of parts to be manufactured and assembled is reduced, simplifying both the manufacturing process and final assembly.
3Reliability
If a forehead fixing device is added to minimize mask movement, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The forehead fixing device is segmented into a base body and selectable connectors, allowing the stabilization function to be achieved through a simple modular structure rather than a complex integrated mechanism. The segmentation enables reliable fixation while maintaining structural simplicity.
Solution Approach 2:
The device incorporates dynamic adjustability through the selectable connector system, allowing users to choose the appropriate connector height based on their forehead. This dynamic adaptation capability improves reliability across different users without requiring a completely different device for each individual.
Data Source
AI summary
An adjustment assembly of a respiratory mask is provided and includes: a forehead fixing device, adapted to fix the respiratory mask on a user's forehead; an adjustment device, comprising a base body and connectors set on the base body, wherein, at least one connector is chosen by a user to be connected with the forehead fixing device according to the user's forehead.