Respiratory Interface Headgear for Stable Sealing During Side Sleeping
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Solution Overview
Problem
Existing respiratory interfaces experience discomfort, leakage, and difficulty in establishing a satisfactory seal, particularly in acute care settings, due to asymmetric loading and facial distortion, which affects patient compliance and treatment efficacy.
Innovation Solution
The interface and headgear design features a sliding connection system with adjustable tension mechanisms, a soft compliant seal member, and ergonomic contours to accommodate various facial shapes, providing even pressure distribution and reducing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional headgear is used to secure the interface, then the interface can be held in place, but significant discomfort is experienced by the patient and sealing becomes temporary
Solution Approach 1:
The headgear incorporates elastic straps that can dynamically adjust to facial movements and distortions, maintaining seal integrity while reducing discomfort. The elastic material allows the headgear to flex and adapt as the patient moves, preventing the rigid constraints that cause discomfort in conventional designs.
Solution Approach 2:
The invention changes the material parameters of the headgear straps from rigid or semi-rigid materials to highly elastic materials. This parameter change allows the straps to stretch and conform to facial movements, maintaining effective sealing while significantly reducing the discomfort experienced by patients.
2Ease of operation
If the patient sleeps on their side, then the headgear applies asymmetric loading, but this twists the interface axis and causes leakage
Solution Approach 1:
The headgear design intentionally incorporates asymmetric elastic properties or adjustable asymmetric tensioning mechanisms that can compensate for the asymmetric loading caused by side sleeping. The elastic straps are designed to distribute forces in a way that maintains interface alignment even when the patient rests on their side.
Solution Approach 2:
The elastic headgear straps dynamically adjust to asymmetric positions during side sleeping, allowing the interface to maintain proper alignment without twisting. The material's elasticity enables the headgear to adapt to the changed geometry of the head and face in lateral positions.
3Productivity
If conventional headgear configurations are used, then the interface can be secured, but the speed of establishing a satisfactory seal is reduced
Solution Approach 1:
The elastic headgear straps are pre-configured with optimal tension and geometry that automatically positions the interface correctly upon application. The elastic material's inherent properties provide preliminary alignment and tensioning, eliminating the need for complex manual adjustments and enabling rapid establishment of an effective seal.
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 design enhances patient comfort, improves seal integrity, and facilitates easy application, increasing compliance and treatment effectiveness by minimizing leaks and discomfort.
Implementation Method 1
a more elastic material
Data Source
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AI summary
Patient interface components and/or associated head gear and adjustment systems improve sealing and/or patient comfort and/or ease of use. The interface comprising an inflating or ballooning seal. The headgear assembly can be connected to the interface with an elastic component and an inelastic component. The elastic component enabling a course fitting of the interface to the patient and the inelastic component enabling a final fitting of the interface to the patient.