Non-Invasive Ventilation Mask With Removable Inserts

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Solution Overview

Problem

Current non-invasive ventilation systems face challenges in providing effective and comfortable respiratory support, particularly in maintaining a secure seal and reducing skin necrosis due to pressure points, while also allowing for easy access to the respiratory opening for medical procedures without disrupting ventilation.

Innovation Solution

The development of a non-invasive ventilation system with a patient interface that incorporates a compliant nose bridge seal, flexible facial skin interface, and interchangeable inserts, which includes features like corrugated flexible seals, nasal passage openers, and self-sealing tube insertion regions, allowing for adjustable bladders and removable inserts to facilitate better sealing, comfort, and access to respiratory openings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a rigid seal structure is used to maintain secure sealing, then sealing reliability is improved, but skin necrosis and pressure points increase

Engineering Contradiction:

Improvesealing reliabilityVSAvoidskin necrosis and pressure points

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs a flexible facial skin interface made of compliant material that can conform to the patient's facial contours while distributing pressure evenly. This flexible membrane structure maintains effective sealing without creating localized pressure points that would cause skin necrosis, thus resolving the contradiction between sealing reliability and skin health.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent incorporates adjustable bladders that can be inflated or deflated to modify the contact pressure and sealing characteristics of the mask. By dynamically adjusting these parameters, the system maintains reliable sealing while preventing excessive pressure that could lead to skin necrosis, adapting to different patient needs and conditions.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the mask structure is made secure and sealed, then ventilation effectiveness is improved, but access to respiratory openings for medical procedures becomes difficult

Engineering Contradiction:

Improveventilation effectivenessVSAvoidaccess to respiratory openings

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent incorporates removable inserts that can be taken out from the mask without removing the entire mask structure. These inserts cover the respiratory openings during normal ventilation but can be quickly removed to allow medical personnel access for procedures such as suctioning or administration of medications, thus maintaining ventilation effectiveness while enabling easy access when needed.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mask design includes dynamic elements such as removable inserts and adjustable components that allow the system to transition between different operational states. During normal operation, the mask provides secure sealing for effective ventilation; when medical procedures are required, the inserts can be quickly removed to provide access, and then reinstalled to restore the sealed environment.

Inventive Principle:

Principle #15Dynamics

3Stability of the object's composition

If fixed mask structure is used to maintain seal integrity, then sealing stability is improved, but adaptability to different patient needs and procedures decreases

Engineering Contradiction:

Improveseal integrityVSAvoidadaptability to different patient needs

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The mask is designed with modular components including removable inserts, adjustable bladders, and separable sections. This segmentation allows the basic mask structure to maintain stable sealing integrity while the modular components can be adjusted, added, or removed to adapt to different patient anatomies, comfort needs, and medical procedure requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mask incorporates multi-functional elements such as removable inserts that can serve different purposes (e.g., allowing access for procedures, adjusting to different facial shapes), adjustable bladders that can accommodate various head sizes and shapes, and a flexible interface that adapts to different patient needs. This universality maintains seal integrity while providing adaptability to diverse clinical scenarios.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9022029B2Carbon-dioxide sampling system for accurately monitoring carbon dioxide in exhaled breath

Publication Date: 2015.05.05 SUNMED GROUP HOLDINGS LLC

AI summary

A carbon-dioxide sampling system for accurately monitoring carbon dioxide in exhaled breath. The system includes a ventilator. The ventilator is configured to ventilate a patient with respiratory gases. The ventilator includes a carbon-dioxide sampling control unit and a carbon-dioxide analyzer. The carbon-dioxide sampling control unit is configured to control the timing of sampling of carbon dioxide in the exhaled breath of a patient, and to control the timing of the analysis of exhaled gases by the carbon-dioxide analyzer.