Head Harness Holding Arrangements with Color and Geometric Coding

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Solution Overview

Problem

Existing head harnesses for patient interfaces lack comfort and clarity in fitting, often causing confusion and improper attachment, leading to uncomfortable pressure points and leaks, especially after cleaning when users struggle to reattach the harness correctly.

Innovation Solution

A head harness with distinctively configured and marked holding arrangements for the upper and lower halves, and right and left sides, featuring geometric and colored confusion prevention elements, such as touch-and-close fasteners and end stoppers, to ensure unambiguous assignment and secure fitting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If head harnesses are designed with simple attachment mechanisms, then ease of operation is improved, but reliability deteriorates due to confusion and improper attachment

Engineering Contradiction:
Improveease of attachmentVSAvoidcorrect attachment
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies color coding to different holding arrangements on the head harness and corresponding mounting points on the patient interface. Each holding arrangement is assigned a specific color that matches its corresponding mounting point, allowing users to quickly identify correct attachment locations through visual color cues rather than complex mechanical guides.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent introduces asymmetric geometric coding elements on the holding arrangements and corresponding mounting points. These asymmetric features create a unique shape language for each attachment point, ensuring that harness straps can only be correctly inserted into their designated mounting points, preventing confusion between similar-looking attachment locations.

Inventive Principle:
Principle #4Asymmetry

2Device complexity

If head harnesses lack identification markings, then device complexity is reduced, but ease of operation deteriorates due to user confusion

Engineering Contradiction:
Improveharness design simplicityVSAvoidfitting clarity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent incorporates color markings on the holding arrangements and corresponding mounting points to provide visual identification. These color codes serve as intuitive guides for users to match harness straps with the correct attachment locations on the patient interface, improving fitting clarity without adding mechanical complexity.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent uses asymmetric geometric shapes and coding features on the holding arrangements and mounting points as identification markings. These asymmetric design elements create a unique visual language that helps users distinguish between different attachment points and ensures correct pairing, enhancing ease of operation while maintaining design simplicity.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS20230090381A1Head harness for positioning a patient interface
Publication Date: 2023.03.23 LOWENSTEIN MEDICAL TECH SA
  • US20230090381A1 patent drawing
  • US20230090381A1 patent drawing
  • US20230090381A1 patent drawing

AI summary

Disclosed is a set of holding arrangements for a head harness in the region of a patient interface. The set comprises at least two holding arrangements which are distinguishable by identification markings and/or codings and are unambiguously assignable.