Fluid Reservoir Cap Gas Trapping Filter Retaining Feature
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Solution Overview
Problem
Existing fluid infusion devices face challenges in reducing air bubbles and particulates in medication fluids, which can affect the accuracy and safety of drug delivery.
Innovation Solution
A fluid conduit assembly with a gas trapping filter is integrated into the flow path to filter out particulates and retain air bubbles, utilizing hydrophilic materials with specific pore sizes to ensure effective filtration and accurate drug delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas trapping filter is integrated into the flow path to reduce air bubbles and particulates, then the purity and reliability of medication fluid delivery is improved, but the device complexity increases
Solution Approach 1:
The filter assembly integrates multiple functions into a single component: the filter media simultaneously traps gas bubbles and particulates, the retaining feature secures the filter in place, and the entire assembly is coupled to the fluid reservoir cap. This merging of functions reduces the number of separate components needed while maintaining the reliability improvement.
Solution Approach 2:
The filter media serves multiple purposes: it acts as a particulate filter, a gas trap, and potentially a flow regulator. The hydrophilic nature of the filter media allows it to selectively interact with different substances in the medication fluid, providing multi-functional performance within a single component.
2Stability of the object's composition
If a filter assembly with retaining feature is used to secure the filter, then the filter positioning stability is improved, but the ease of manufacture decreases
Solution Approach 1:
The retaining feature utilizes a flexible lip that can deform during assembly to engage with the filter assembly, providing secure retention without requiring complex rigid mechanical structures. This flexibility simplifies the manufacturing process while maintaining stable filter positioning.
Solution Approach 2:
The retaining feature is designed to distribute retention forces evenly around the filter assembly, creating a balanced retention system that stabilizes the filter without creating stress concentration points that would complicate manufacturing or assembly.
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 solution effectively reduces air bubbles and particulates in the medication fluid, enhancing the accuracy and reliability of fluid delivery systems, such as insulin pumps, by ensuring a consistent and bubble-free flow of medication.
Implementation Method 1
a partially or predominantly hydrophilic gas trapping filter positioned in the flow path to filter particulates from the medication fluid and retain gas bubbles from the medication fluid
Implementation Method 2
gas trapping filter... retain gas bubbles from the medication fluid
Implementation Method 3
gas trapping filter positioned in the flow path to filter particulates from the medication fluid
Data Source
AI summary
A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid. The structure includes at least one retaining feature to inhibit movement of the gas trapping filter.