Respiratory Mask Headgear With Automatic Seal Adjustment
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Solution Overview
Problem
Existing respiratory masks struggle with maintaining a stable, airtight seal during use, leading to discomfort and potential pressure sores due to inadequate adjustment mechanisms, particularly around the ears and headgear components.
Innovation Solution
A respiratory mask assembly featuring a headgear with automatically adjusting mechanisms, including upper and lower straps with control mechanisms located behind the ears, and elastic portions to allow for comfortable fitting and secure sealing, along with magnetic and foldable connections for easy donning and doffing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustment mechanisms are used, then the device complexity is reduced, but the reliability of maintaining a stable airtight seal deteriorates
Solution Approach 1:
The headgear incorporates automatic adjustment mechanisms that self-regulate the mask position and seal stability without requiring manual intervention. The elastic portions and magnetic connectors automatically adapt to head movements and shape changes, maintaining the airtight seal through self-correcting forces.
Solution Approach 2:
The headgear transitions from static manual adjustments to dynamic automatic adjustments. The elastic portions continuously adapt to head shape changes, and the magnetic connectors dynamically adjust to maintain optimal positioning, ensuring reliable sealing throughout the therapy period.
2Reliability
If tight fitting is applied to ensure airtight seal, then the reliability of seal is improved, but the object-generated harmful factors worsen due to pressure sores and discomfort
Solution Approach 1:
The headgear applies different levels of force to different regions: elastic portions provide gentle, distributed pressure on the head to prevent sores, while magnetic connectors concentrate force at specific connection points to maintain seal integrity. This localized differentiation of force application resolves the contradiction between seal quality and comfort.
3Reliability
If multiple adjustment mechanisms are added to improve seal stability, then the reliability is improved, but the ease of operation deteriorates due to complex donning and doffing
Solution Approach 1:
The patent combines multiple adjustment functions into integrated components. The elastic portions simultaneously provide cushioning, positioning, and automatic adjustment, while magnetic connectors combine attachment and adjustment functions. This merging reduces the number of separate operations needed during donning and doffing.
4Stability of the object's composition
If rigid headgear structure is used to maintain stable position, then the stability is improved, but the adaptability deteriorates due to inability to accommodate head shape changes
Solution Approach 1:
The headgear employs elastic portions that function as flexible elements, allowing the structure to conform to head shape changes while maintaining overall stability. These flexible components adapt to anatomical variations and movements without compromising the mask's positional stability or seal integrity.
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 assembly provides a more comfortable and secure fit, reducing irritation and pressure points, while ensuring a stable airtight seal for effective respiratory therapy delivery.
Implementation Method 1
two lower side straps comprising an elastic portion and extending from the mask interface
Data Source
AI summary
A mask assembly includes a mask interface and a headgear assembly. The mask interface includes a housing and a seal that seals around a user's nose and/or mouth in use. The headgear assembly secures the mask interface to the user's face in use. The headgear assembly can include a top strap, a rear section, and side arms. The top strap can be manually adjustable. The rear section can be temporarily expanded to allow for donning and/or doffing of the mask assembly. The side arms can be automatically adjustable.