Adjustable Breathing Interface Headgear for Custom Fit

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Solution Overview

Problem

Existing headgear for respiratory devices lacks ease of use and reconfigurability, failing to accommodate individual user preferences and comfort needs.

Innovation Solution

A headgear assembly with a removably connected interface and adjustable straps, featuring a crown strap assembly with adjustable bridge regions and multiple support components, allowing for customizable fit and enhanced comfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If headgear uses fixed configuration straps, then manufacturing is simpler, but user comfort and adaptability are reduced

Engineering Contradiction:
Improveheadgear reconfigurabilityVSAvoidheadgear structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The headgear is divided into separate functional modules: interface component, crown strap assembly with bridge regions, and multiple adjustable straps. Each module can be independently adjusted or reconfigured, allowing customization without requiring complete redesign of the entire headgear system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The headgear incorporates adjustable bridge regions that can dynamically change position along the straps, and multiple straps with varying degrees of adjustability. This dynamic configuration allows the headgear to adapt to different user preferences and comfort requirements while maintaining a relatively simple base structure.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If headgear allows multiple adjustment positions, then user comfort improves, but adjustment time and complexity increase

Engineering Contradiction:
ImproveadjustabilityVSAvoidadjustment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The bridge regions are pre-positioned at multiple predetermined locations along the straps during manufacturing. Users can quickly select and engage the desired pre-positioned location without requiring complex real-time adjustments, reducing adjustment time while maintaining multiple position options.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The bridge regions act as intermediary elements between the crown strap assembly and the interface component. These intermediaries provide predetermined engagement points that simplify the adjustment process, allowing users to quickly switch between positions without manipulating the entire headgear structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4353289B1Headgear assembly for breathing interface
Publication Date: 2025.12.31 FISHER & PAYKEL HEALTHCARE LTD
  • EP4353289B1 patent drawingFigure 1
  • EP4353289B1 patent drawingFigure 2
  • EP4353289B1 patent drawingFigure 3

AI summary

An interface and headgear assembly includes a headgear assembly. The headgear assembly has a first strap configured to connect to the interface. A crown strap can be adjusted along a length of the first strap. In some configurations, the crown strap has a first portion and a second portion that are adjustably connected. The crown strap can be removably connected to the first strap using bridge regions of the first portion and the second portion.