Mechanically Actuated Vacuum Fluid Collection with Reagent Mixing
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Solution Overview
Problem
Conventional fluid collection devices are not portable, mechanically actuated, and lack the ability to collect a measured amount of liquid, interface with liquid biological samples, transport devices, or add pre-loaded reagents to collected fluids effectively.
Innovation Solution
Mechanically actuated vacuum fluid collection systems with syringe units, triggers, and springs that create a vacuum for fluid collection, and the option to pre-load reagents for mixing with the collected fluid, allowing for measured and controlled fluid collection and reagent addition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional fluid collection devices are used, then fluid collection is possible, but the devices are not portable and lack mechanical actuation capability
Solution Approach 1:
The device is divided into distinct functional modules: syringe units with plungers for vacuum generation, trigger mechanisms for actuation, springs for mechanical force, and reagent reservoirs. This segmentation allows each component to be optimized independently while maintaining overall portability and mechanical operation capability.
Solution Approach 2:
The device incorporates movable plunger components within syringe barrels that can be mechanically actuated through triggers. The springs provide dynamic mechanical force to move the plungers, creating variable vacuum levels. This dynamic mechanical system enables portable, hand-operated fluid collection without requiring external power sources.
2Measurement precision
If conventional fluid collection devices are used, then fluid collection is possible, but they cannot collect a measured amount of liquid
Solution Approach 1:
The syringe units are pre-configured with specific barrel volumes and plunger travel distances that correspond to predetermined fluid collection volumes. The springs are pre-compressed to provide specific forces that generate controlled vacuum levels. This preliminary configuration enables precise measurement of collected fluid volumes without requiring additional measurement steps, maintaining high collection efficiency.
3Adaptability or versatility
If conventional fluid collection devices are used, then fluid collection is possible, but they cannot interface with liquid biological sample containers or transport devices
Solution Approach 1:
The device incorporates multiple syringe units that can interface with different types of containers including biological sample containers and transport devices. The syringe barrels and plunger mechanisms are designed with universal compatibility features that allow connection to various container types, enabling the same device to perform multiple functions across different应用场景 while maintaining relatively simple interface structures.
4Adaptability or versatility
If conventional fluid collection devices are used, then fluid collection is possible, but they cannot add pre-loaded reagents to collected fluid
Solution Approach 1:
The device merges the fluid collection function with reagent mixing by integrating reagent reservoirs directly into the syringe unit structure. As the plunger moves to collect fluid, it simultaneously draws in pre-loaded reagents from adjacent reservoirs. The collected fluid and reagents mix within the same syringe barrel, combining multiple functions into a single integrated system without requiring complex separate reagent delivery mechanisms.
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
Enables portable, efficient, and controlled collection of biological fluids with integrated reagent mixing, facilitating precise fluid handling and transport for diagnostic or assay purposes.
Implementation Method 1
springs configured to provide a force to move the plunger and create a vacuum within the syringe unit
Implementation Method 2
the plunger moves through the syringe unit to collect a fluid sample
Data Source
AI summary
A mechanically-actuated vacuum-controlled fluid collection system includes a mechanically-actuated vacuum controller (MA VC) to draw fluid into a chamber through the opening to the chamber. The system may include a releasable seal to seal the opening, and the MAVC may include a spring-loaded plunger to create a vacuum within the chamber when sealed. The system includes multiple fluid chambers, and may further include a single actuator or multiple corresponding actuators. The system may be configured to add a pre-loadable reagent to fluid drawn into the one or more chambers, and may be configured to add the reagent in proportion to a volume of the fluid. The system may be controllable to release collected fluid to another device, such as for assay and/or transport. The system may be configured to draw a liquid biological sample such as urine, and may include a fluid interface to draw fluid from a biological sample container.