Aerosol Collection Capsule with Buffer-Activated Filter Capture
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Solution Overview
Problem
Existing aerosol collection devices face challenges such as limited shelf life, efficiency, and accuracy due to structural limitations and contamination risks.
Innovation Solution
An aerosol collection device comprising a sample transfer adapter, device body, and filter component with a buffer solution, which includes a mechanism for capturing aerosols using a hermetically sealed capsule component that releases buffer solution onto a filter for enhanced capture and extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing aerosol collection devices are used, then sample collection is performed, but shelf life and accuracy are limited due to structural limitations and contamination risks
Solution Approach 1:
The device is divided into separate sterile and non-sterile components. The capsule containing buffer solution and the filter component can be independently packaged and sterilized, then assembled in a controlled manner. This segmentation allows each component to be optimized for its specific function while maintaining overall system reliability and extending shelf life.
Solution Approach 2:
A sterile barrier or sealing mechanism acts as an intermediary between the sterile capsule/component and the non-sterile external environment. This intermediary maintains sterility during storage and transport, preventing contamination while allowing the device to remain structurally simple until activation.
2Reliability
If existing aerosol collection devices are used, then sample collection is performed, but contamination risks increase
Solution Approach 1:
The buffer solution and filter component are pre-packaged in a sterile capsule before use. This preliminary sterilization and sealing action eliminates the need for complex sterilization procedures during operation, maintaining contamination resistance while simplifying the user操作流程. The user simply needs to activate the pre-prepared sterile components.
3Measurement precision
If buffer solution is released onto filter for aerosol capture, then capture accuracy improves, but device complexity increases
Solution Approach 1:
The buffer solution reservoir, filter component, and release mechanism are merged into a single integrated capsule. This combination allows the buffer to be released directly onto the filter in a controlled manner without requiring separate complex mechanisms for fluid handling, thereby improving pathogen detection accuracy while minimizing device complexity.
Solution Approach 2:
The capsule is designed to automatically release the buffer solution onto the filter component when activated, without requiring external pumping or complex fluid control systems. This self-service mechanism achieves accurate pathogen capture through simple user activation, improving detection precision while maintaining operational simplicity.
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 device provides accurate and quick detection of pathogens in aerosols with low pressure drop for user comfort, eliminating the need for pumps and ensuring effective sample capture for downstream diagnostics.
Implementation Method 1
The buffer solution is configured to cause the captured aerosol disposed within the filter component to be retained into an at least partially liquid state
Implementation Method 2
a filter component, the buffer solution being contained in a first side of the filter component
Data Source
AI summary
Methods, apparatuses, and systems associated with aerosol collection devices (such as, but not limited to, breath-aerosol collector devices, breathalyzers) are provided. An example aerosol collection device includes a sample transfer adapter configured to receive a sample and a device body connected to the sample transfer adapter. In some examples, the device body defines a flow channel that guides the sample to a filter component, and the filter component contains a buffer solution.