Respiratory Mask Headgear Back Strap for Hair Stabilization
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Solution Overview
Problem
Current respiratory mask headgear tends to slide over long hair, causing displacement and destabilization of the airway interfacing portion, leading to discomfort and hair tangling issues.
Innovation Solution
The headgear incorporates a back strap that extends underneath the occiput to stabilize the mask on the head, with adjustable elastic properties and a clasp system to manage hair, ensuring the airway interfacing portion remains secure and the hair is kept neat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the headgear is designed to slide over the patient's head for easy positioning, then the ease of operation is improved, but the headgear slides around over long hair causing instability and hair displacement
Solution Approach 1:
The headgear is divided into distinct functional segments: a front headband portion for initial positioning that slides over the head, and a back strap portion with clasps that provides stable anchoring at the occiput. This segmentation allows each part to perform its specialized function - the front headband enables easy donning while the back strap ensures stability, resolving the contradiction between ease of operation and reliability.
2Reliability
If the back strap is positioned to stabilize the mask, then the stability is improved, but it displaces and tangles the patient's long hair
Solution Approach 1:
The headgear design introduces intermediate elements including a headband that distributes pressure and prevents direct contact between the back strap and hair, and hair management features such as hair clips or combs integrated into the headgear structure. These intermediaries allow the back strap to provide stabilizing force at the occiput while the intermediate elements protect the hair from displacement and tangling, resolving the contradiction between stability and hair protection.
3Adaptability or versatility
If the headgear uses elastic materials to accommodate head size variations, then the adaptability is improved, but the elastic properties cause the headgear to slide over hair
Solution Approach 1:
The headgear employs local quality by using elastic materials selectively in specific regions (such as the front headband and adjustment areas) where flexibility is needed for accommodation, while using non-slip materials with higher friction coefficients in contact areas with hair (such as the back strap and occipital region). This localized differentiation allows the elastic portions to provide adaptability for head size variations while the non-slip portions resist sliding on hair, resolving the contradiction between adaptability and reliability.
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 solution effectively stabilizes the mask on patients with long hair, maintaining a secure airway interface while minimizing hair displacement and tangling, enhancing patient comfort and compliance.
Implementation Method 1
a back strap extending rearwardly from and connecting respective junctions of the front strap portions and top strap portions or regions adjacent these junctions and adapted to locate underneath a patient's occiput. In use with a patient having long hair, the back strap is adapted to extend under the patient's hair and urge upwardly on the patient's hair and against the patient's head beneath the occiput.
Data Source
AI summary
Headgear for a respiratory mask includes a strap arrangement including front strap portions adapted to be disposed over a patient's cheeks and having front ends adapted for attachment to an airway interfacing portion, top strap portions connected to respective front strap portions and adapted to be disposed over the top of a patient's head and to connect to each other, and a back strap extending rearwardly from and connecting respective junctions of the front strap portions and top strap portions or regions adjacent these junctions and adapted to locate underneath a patient's occiput. In use with a patient having long hair, the back strap is adapted to extend under the patient's hair and urge upwardly on the patient's hair and against the patient's head beneath the occiput. In use with a patient having short hair, the back strap is adapted to urge against the patient's head beneath the occiput. In an embodiment, front strap portions of the headgear may be provided with a sleeve or cover (e.g., constructed of a fleece material) to enhance comfort in use.