Respiratory Therapy Headgear Rear Panel Geometry for Comfort and Low Waste
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Solution Overview
Problem
Existing headgear for respiratory therapy systems face challenges in balancing functions such as securing the patient interface, maintaining a seal, improving comfort, and reducing material usage, often conflicting with one another, especially in disposable or short-term use scenarios.
Innovation Solution
The headgear design features a rear panel with specific geometric proportions and configurations, including a main body and laterally extending arms, optimized for efficient material usage and comfort, with a ratio of areas between 0.1 and 0.3, allowing for high yield manufacturing and reduced waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rear panel area is increased to improve patient comfort and seal maintenance, then the compression force distribution is improved, but the material usage and manufacturing cost increase
Solution Approach 1:
The patent applies parameter changes by optimizing the rear panel area to a specific range (6000-13000mm²) and setting the lateral arm area ratio between 0.1-0.3, thereby achieving the optimal balance between comfort and material usage through quantitative parameter specification
Solution Approach 2:
The patent applies local quality by creating laterally extending arms with specific area ratios that concentrate compression forces at key locations (ears and occiput) while maintaining overall panel efficiency, ensuring that material is distributed where most needed for comfort and seal maintenance
2Reliability
If the headgear is designed for disposable use to reduce contamination risk, then the hygiene reliability is improved, but the manufacturing cost per unit increases
Solution Approach 1:
The patent explicitly designs the headgear as a disposable single-use component that is discarded after one use, eliminating cleaning and sterilization requirements while maintaining hygiene reliability through the disposable nature of the product itself
Solution Approach 2:
The patent optimizes the rear panel area parameters to achieve high-yield manufacturing patterns that minimize material waste during production, thereby reducing the manufacturing cost of each disposable unit while maintaining the disposable design
3Ease of operation
If the lateral arms are extended further laterally to improve comfort and force distribution, then the comfort and seal maintenance are improved, but the material usage increases
Solution Approach 1:
The patent specifies that the lateral arms should have an area ratio of 0.1-0.3 relative to the main body, providing an optimal dimensional parameter that balances comfort improvement with material waste reduction
Solution Approach 2:
The laterally extending arms are designed to extend only to the necessary degree to contact the user's ears and occiput, providing localized comfort and force distribution exactly where needed without excessive material extension
Data Source
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AI summary
Headgear configured to be secured to a patient interface of a respiratory therapy system, to mount the patient interface on a user's head, comprises; at least one pair of side straps, each side strap having first and second opposed ends, a first end of each strap being secured to, or being configured to be secured to, the patient interface and to extend along the sides of the user's head; a rear panel configured to engage the rear of the user's head, the second end of each side strap being joined to the rear panel such that the or each pair of side straps extend from the rear panel; wherein the rear panel comprises a main body and a pair of laterally extending arms, the second end of each side strap being joined to a respective arm; the main body comprising: opposed top and base margins which are spaced apart by a distance, opposed side margins extending between the top and base margins, and a central longitudinal axis bisecting the top and base margins; each arm being inclined relative to the central longitudinal axis, extending away from a respective side margin of the main body and comprising a distal arm end, each distal arm end having a width measured in a direction substantially parallel with the central longitudinal axis; wherein the width of each distal arm end is between 30% to 60% of the distance between the opposed top and base margins of the main body.