Lapped-Panel Headgear for Respiratory Interface Pressure Relief
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Solution Overview
Problem
Conventional respiratory headgear for masks used in therapies like CPAP and BiPAP systems often cause discomfort due to thickness, bulk, and anatomical fit issues, leading to irritation and reduced patient compliance, especially when worn for extended periods.
Innovation Solution
The headgear is constructed from a plurality of panels lapped and bonded together using adhesives, reducing thickness and weight, and allowing for location-specific properties and flexibility, with panels made from materials with varying textures, stiffness, and stretchability to enhance comfort and fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional headgear is constructed with multiple layers and thick materials to provide structural support and retention, then the headgear can securely retain the respiratory interface, but the headgear becomes bulky and causes localized pressure points leading to discomfort
Solution Approach 1:
The headgear is divided into multiple panels (front panel, rear panel, side panels) that can be independently configured with different materials and properties. This segmentation allows each panel to be optimized for its specific function while reducing overall bulk and pressure points.
Solution Approach 2:
Different panels are made from materials with varying properties - some panels use softer materials for comfort zones, while others use stiffer materials for structural support. This local quality variation allows the headgear to provide necessary retention forces without creating uncomfortable pressure points in specific areas.
2Adaptability or versatility
If headgear straps are made longer and more adjustable to accommodate different patient anatomies, then the headgear can fit various head sizes and shapes, but the headgear becomes more complex and difficult to adjust properly
Solution Approach 1:
The headgear is constructed from multiple separate panels that can be independently sized and configured. This allows each panel to be optimized for specific anatomical regions while simplifying the overall adjustment process, as patients can adjust individual panels rather than complex multi-point systems.
Solution Approach 2:
The headgear incorporates elastic panels with varying degrees of stretchability that dynamically adapt to different patient anatomies. This elasticity provides automatic adjustment and accommodation of head size variations without requiring complex mechanical adjustment mechanisms.
3Stability of the object's composition
If headgear materials are made thicker and stiffer to maintain headgear shape and provide support, then the headgear can maintain its structural integrity, but the headgear causes increased localized pressure and discomfort when laid on the patient's head
Solution Approach 1:
Different panels are constructed with varying material properties - softer, more compliant materials are used in areas that contact the patient's head, while stiffer materials are used in areas requiring structural support. This local quality differentiation maintains overall shape retention while minimizing pressure discomfort.
Solution Approach 2:
The headgear uses composite material construction where different panels combine materials with complementary properties. This allows the headgear to exhibit both structural rigidity where needed and softness where it contacts the patient, resolving the contradiction between shape retention and comfort.
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 innovative design provides increased comfort and improved anatomical fit, reducing bulk and weight, thereby enhancing patient compliance and reducing localized pressure points, especially during prolonged use.
Implementation Method 1
at the or each at least one lapped region the panels are bonded to each other by an adhesive
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
A headgear for a patient interface, such as a respiratory interface, includes a plurality of panels which are lapped against each other. The panels define lapped parts of the headgear where panels overlap and/or underlap each other, and non-lapped parts of the headgear where a panel or panels are not lapped by another panel. The panels at the lapped regions are bonded to each other by an adhesive, such as a hot-melt adhesive. By combining panels having different properties, interfaces between panels having different lapping configurations, and by controlling the properties such as extensibility and stiffness of the adhesive when set a headgear may be provided location-specific features and properties.