Modular CPAP Mask Configuration for Comfort and Seal Stability
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Solution Overview
Problem
Existing CPAP mask systems for treating sleep disordered breathing conditions are often uncomfortable and require multiple masks for different configurations, which can be expensive and not covered by insurance, with rigid frames that may dislodge during use.
Innovation Solution
A modular mask system with flexible components that can be used as a nasal only mask or an oro-nasal mask, featuring separate stabilization at the nose and mouth sealing portions, and adaptable configurations for nares only, mouth only, or both, allowing for interchangeable use of nares and mouth portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid frame is used in the mask, then structural stability is improved, but comfort and reliability deteriorate as the frame may dislodge during use
Solution Approach 1:
The patent replaces the rigid frame with a flexible membrane structure that can conform to the patient's face contours while maintaining sealing. The flexible membrane is supported by a lightweight framework and can adapt to facial movements without dislodging, resolving the contradiction between structural stability and reliability during use.
2Adaptability or versatility
If multiple different masks are purchased for different configurations, then adaptability is improved, but cost and device complexity increase
Solution Approach 1:
The patent designs a universal mask system with interchangeable components including a removable mouth portion and adjustable headgear. The same basic mask unit can function as a nasal mask, oral mask, or oro-nasal mask by reconfiguring components, providing multiple therapeutic configurations without requiring multiple separate masks, thus reducing cost and complexity while maintaining adaptability.
3Strength
If a rigid frame is used in the mask, then structural strength is improved, but ease of operation deteriorates as the frame may be contacted or forced by bed clothing, pillows, etc.
Solution Approach 1:
The flexible membrane construction allows the mask to bend and move with the patient's face naturally during sleep without rigid resistance. The flexible structure is not forced or dislodged by bed clothing or pillows, while still maintaining sufficient structural strength through the lightweight framework and membrane combination, improving comfort during operation.
4Ease of operation
If the mask is designed to be comfortable and unobtrusive, then ease of operation is improved, but structural stability may worsen
Solution Approach 1:
The flexible membrane provides comfortable contact with the patient's face while maintaining sealing stability through its elasticity and conformability. The lightweight framework distributes forces evenly across the face, preventing localized pressure points that could cause discomfort or sealing failure, thus achieving both comfort and stability simultaneously.
Data Source
AI summary
A mask system for delivery of respiratory therapy to a patient includes a nares portion and a mouth portion and an inlet conduit connected to at least one of the nares portion and the mouth portion to deliver the pressurized, breathable gas. The mask system is adapted to selectively utilize the nares portion and/or the mouth portion in a first mode utilizing both the nares portion and the mouth portion, and in a second mode utilizing the nares portion and not utilizing the mouth portion.