Respiratory Headgear Straps With Variable Elasticity for Easier Donning

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Solution Overview

Problem

Existing headgear for respiratory interfaces is not user-friendly and lacks comfort, often leading to tangling and difficulty in donning.

Innovation Solution

The headgear incorporates customizable straps with adjustable stretch characteristics, removable inserts, and integrated rigid or semi-rigid components to provide improved fit and function, featuring multi-yarn knits and braids with varying elasticity and thermoplastic elements for enhanced comfort and ease of use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional headgear straps are used, then the structure is simple, but the headgear tangles and is difficult to don

Engineering Contradiction:
Improveease of donningVSAvoidheadgear structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The headgear is pre-formed into a three-dimensional shape that corresponds to the contours of the user's head. This preliminary shaping action eliminates the need for complex adjustment during donning, as the headgear naturally conforms to the head shape upon placement, reducing tangling and simplifying the donning process while maintaining structural simplicity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The headgear incorporates straps with variable stretch characteristics along their length, allowing different sections to dynamically adapt to different regions of the head. This dynamic flexibility enables the headgear to accommodate head movement and shape variations without requiring complex adjustment mechanisms, thereby improving ease of operation without significantly increasing device complexity

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If uniform stretch straps are used, then the structure is simple, but the fit and comfort are insufficient

Engineering Contradiction:
Improvefit customizationVSAvoidstrap structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The straps are constructed with different yarns having varying stretch characteristics at different locations along the strap length. This local quality variation allows specific sections to provide greater or lesser stretch depending on the anatomical requirements of different head regions, achieving customized fit without requiring multiple separate straps or complex adjustment mechanisms

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The headgear employs composite strap construction combining multiple yarn types with different elastic properties within a single strap structure. This composite approach enables the strap to simultaneously provide structural support in some areas and flexibility in others, achieving versatile fit adaptation while maintaining a unified, relatively simple strap structure

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If non-stretch components are added for structure, then the shape stability is improved, but the comfort and ease of adjustment are reduced

Engineering Contradiction:
Improveshape stabilityVSAvoidadjustment ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The headgear is divided into distinct segments: rigid or semi-rigid components that provide structural stability and shape maintenance, and flexible stretch straps that enable easy adjustment and comfort. This segmentation allows each component to perform its specialized function optimally without compromising the other, achieving both shape stability and adjustment ease

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The headgear integrates rigid structural components with flexible stretch straps into a unified assembly. The rigid portions provide the necessary shape stability and structural integrity, while the attached flexible straps enable easy adjustment and user comfort. This merging of contrasting properties within a single headgear system resolves the contradiction between stability and ease of operation

Inventive Principle:
Principle #5Merging (Combining)

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 enhances the fit, reduces tangling, and simplifies the donning process, providing a more comfortable and reliable respiratory interface experience.

Implementation Method 1

The strap includes a stretch component and a relatively non-stretch member

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

thermoplastic elements for enhanced comfort and ease of use

Methodology Applied
Scientific EffectThermal deformation: Thermal Expansion

Data Source

PatentUS20260027319A1Headgear for respiratory interfaces
Publication Date: 2026.01.29 FISHER & PAYKEL HEALTHCARE LTD
  • US20260027319A1 patent drawing
  • US20260027319A1 patent drawing
  • US20260027319A1 patent drawing

AI summary

Headgear straps and headgear assemblies to secure user interfaces during breathing treatments. Some of the embodiments provide straps that can have varied elasticity over the length of the straps. Some of the embodiments provide adjustment mechanisms that facilitate customization of headgear to a user.