Nasal Interface With Dedicated Inspiratory and Expiratory Conduits
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Solution Overview
Problem
Existing patient interfaces for medical breathing circuits lack the ability to provide specialized gases therapies efficiently, particularly in delivering inspiratory and expiratory gases separately and effectively to both nares.
Innovation Solution
A patient interface system comprising two nasal interfacing components, each with an associated conduit, where one component is configured as a sole inspiratory line for delivering gases to one nare, and the other component is configured as a sole expiratory line for receiving gases from the other nare, with a diverter valve controlling the flow between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional patient interface is used for medical breathing circuits, then the interface can provide basic gases therapy, but it lacks the ability to deliver inspiratory and expiratory gases separately and efficiently to both nares
Solution Approach 1:
The patient interface is segmented into separate inspiratory and expiratory pathways, with each pathway having dedicated conduits and nasal interfacing components. This segmentation allows independent control and delivery of inspiratory and expiratory gases to different nares, enabling specialized gases therapies while maintaining a manageable structural complexity through modular design.
2Productivity
If separate inspiratory and expiratory conduits are used for each nare, then efficient delivery and receipt of gases is achieved, but the device complexity increases
Solution Approach 1:
The patient interface merges multiple functions into a unified structure that includes separate inspiratory and expiratory pathways integrated within a single device. The bridge portion connects both nasal interfacing components while maintaining separate fluid pathways, allowing efficient gases therapy delivery through coordinated operation of integrated components rather than separate devices.
Solution Approach 2:
The patient interface is designed as a multi-functional device that can simultaneously perform inspiration and expiration functions, deliver different gas compositions to each nare, and adapt to various gases therapy requirements. The diverter valve and coordinated operation of components enable the interface to handle multiple therapeutic protocols through a single versatile apparatus.
3Reliability
If anatomical dead space is reduced through dedicated inspiratory and expiratory pathways, then gases therapy efficacy is improved, but the manufacturing complexity increases
Solution Approach 1:
The interface is manufactured as segmented modular components including separate inspiratory and expiratory conduits, nasal interfacing components, and a bridge portion. This segmentation allows for standardized manufacturing of individual modules that can be assembled through coordinated connection, reducing the overall manufacturing complexity while maintaining the dead space reduction benefits of dedicated pathways.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for efficient delivery and receipt of gases, reducing anatomical and interface dead space, and enabling effective detection of gases therapy delivery, thus enhancing the efficacy of gases therapies such as CPAP.
Implementation Method 1
a diverter valve controlling the flow between them
Data Source
AI summary
This relates to a patient interface, a system and/or method for providing a dedicated or sole inspiratory line or conduit for provision of inspiratory gases to a patient, and a invention dedicated sole expiratory line or conduit for provision of expiratory gases to a downstream device, where the inspiratory line or conduit is sealing engageable with first of a user's nares and the expiratory line or conduit is sealing engageable with the second of a user's nares.