Nebulizer Recovery Assembly Reducing Atomized Material Waste
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Nebulizers waste up to 50% of atomized materials during exhalation, as they continue to dispense medication regardless of inhalation, leading to significant financial loss for treatments that can cost thousands of dollars per year.
Innovation Solution
A recovery and collection assembly for nebulizers that includes an outer tubular housing with air flow openings and an input tube, allowing atomized materials to be collected during exhalation and reused during subsequent inhalation, reducing waste and improving treatment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nebulizers continue to provide atomized materials during exhalation, then the constant flow of medication is maintained, but material is wasted to the atmosphere
Solution Approach 1:
The device uses a valve mechanism that opens and closes periodically based on the user's respiratory cycle. During inhalation, the valve opens to allow atomized material to pass to the user. During exhalation, the valve closes to redirect the atomized material into a collection chamber for recovery. This periodic action ensures medication is delivered only when needed while preventing waste during exhalation phases.
Solution Approach 2:
Instead of allowing atomized material to be discarded into the atmosphere during exhalation, the system recovers it by redirecting the flow into a collection chamber. The recovered material is then made available for delivery during the next inhalation phase, thereby reducing overall material waste while maintaining reliable medication supply.
2Reliability
If nebulizers operate continuously to ensure medication availability, then treatment reliability is improved, but 50% of material is lost during non-inhalation periods
Solution Approach 1:
The system incorporates a feedback mechanism that responds to the user's respiratory cycle. The valve mechanism detects when the user is exhaling (through pressure or flow changes) and automatically redirects the atomized material flow into the collection chamber. During inhalation, it switches back to deliver mode. This feedback-controlled operation maintains medication availability while eliminating waste during non-inhalation periods.
Solution Approach 2:
The collection chamber acts as an intermediary between the atomization source and the user. During exhalation, it temporarily stores the atomized material that would otherwise be wasted. During subsequent inhalation, this stored material is delivered to the user, effectively mediating the transition from waste to useful delivery and reducing overall material loss.
3Manufacturing precision
If atomized materials are delivered at constant flow rate, then consistent medication dosing is achieved, but significant material is wasted when user is not inhaling
Solution Approach 1:
The system transitions from a static constant-flow delivery mode to a dynamic controlled-flow mode. The valve mechanism dynamically adjusts the flow path based on real-time respiratory detection. When the user inhales, flow is directed to the user; when the user exhales, flow is redirected to the collection chamber. This dynamic adjustment maintains consistent dosing during inhalation while preventing waste during exhalation.
Solution Approach 2:
The collection chamber performs a preliminary storage function for atomized material during exhalation phases. This pre-collected material is then made available for delivery during the next inhalation, ensuring consistent dosing is maintained without requiring continuous atmospheric release of medication.
Data Source
AI summary
A recovery and collection assembly for an atomized material inhalation device is provided. The recovery and collection assembly includes an outer tubular housing and an input tube. The outer tubular housing includes a sidewall defining an outer chamber, an upper end piece attached to an upper end of the sidewall, and a lower end piece attached to a lower end of the sidewall. The lower end piece has at least one air flow opening allowing fluid communication between an interior of the outer chamber and an atmosphere surrounding the outer tubular housing. The input tube extends through the lower end piece and has a first end in fluid communication with the atomized material inhalation device. The input tube also has a second end disposed in an upper half of the outer chamber and in fluid communication with the outer chamber and defines an inner chamber.