Respiratory Adapter Bypass Bridge for Media Deposition
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Solution Overview
Problem
Current respiratory assist devices experience significant loss of inhaled media during both inspiration and expiration due to flow through the media reservoir and adjustments in supplemental flow associated with pressure and/or volume controlled respiratory assist devices, leading to unknown and reduced drug delivery to the lung.
Innovation Solution
A respiratory adapter with an inspiratory arm, an expiratory arm, and a bypass flow bridge connected by one-way valves to direct gas flow efficiently, preventing re-breathing of exhaled gas and minimizing media loss by ensuring flow only during intended phases of respiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous supplemental flow is used through the media reservoir, then respiratory support is provided, but significant loss of inhaled media occurs during both inspiration and expiration
Solution Approach 1:
The circuit is segmented into inspiratory and expiratory arms with a bypass flow bridge, allowing separate control of media delivery during inspiration while isolating expiration flow from the media reservoir
Solution Approach 2:
A bypass flow bridge with one-way valves acts as an intermediary pathway that directs expiratory flow away from the media reservoir, preventing media loss during expiration while maintaining respiratory support
2Productivity
If media reservoir is positioned close to patient interface, then media delivery is optimized, but media is diverted away from lung during continual supplemental flow
Solution Approach 1:
One-way valves dynamically control flow direction based on respiratory phase, allowing media to reach the patient interface during inspiration while preventing backflow and diversion during expiration
Solution Approach 2:
The bypass flow bridge maintains continuous expiratory flow through the bypass pathway, preventing media diversion while ensuring continuous respiratory support
3Reliability
If pressure and/or volume controlled respiratory assist devices are used, then respiratory support is provided, but adjustments to supplemental flow cause media loss
Solution Approach 1:
The circuit segments inspiratory and expiratory flows with a bypass bridge, isolating media delivery from flow adjustments made during expiration or transitional phases
Solution Approach 2:
The bypass flow bridge with one-way valves serves as an intermediary that stabilizes media delivery by directing variable expiratory flows away from the media reservoir, preventing media loss during flow adjustments
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
The adapter improves media deposition efficiency in the lungs, reducing media loss and ensuring more accurate and cost-effective delivery of therapeutic agents by minimizing diversion of drug away from the lung during inspiration and expiration.
Implementation Method 1
one or more valve positioned in each of the bypass flow bridge, in the inspiratory arm, and in the expiratory arm
Data Source
AI summary
The present invention provides a respiratory adapter for inhaled media deposition in the lungs and airways. The respiratory adapter provides an inspiratory arm and an expiratory arm, wherein the two arms are joined by a bypass flow bridge. A system of valves, such as one-way valves, directs the flow of gas and media through the respiratory adapter to improve media deposition efficiency and to prevent re-breathing of exhaled gas.