Infusion Pump Fill Adapter With Dual-Needle Vial Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wearable fluid delivery devices face challenges such as malfunction rates, size, weight, and cost, along with frequent re-location issues, and require improved designs for controlled release of therapeutics.
Innovation Solution
A fill adapter system for an infusion pump assembly includes a reusable fill adapter base with a volume control mechanism and a vial adapter assembly featuring needles for fluid transfer, along with a needle carriage and hydrophobic filter, to facilitate efficient filling and delivery of fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If wearable fluid delivery devices are designed for controlled release of therapeutics, then the duration of action is improved, but the reliability deteriorates due to malfunction rates
Solution Approach 1:
The device is divided into separate modular components including a reservoir module, pump module, and control module. This segmentation allows independent testing and validation of each component, reducing overall system malfunction rates while maintaining long-term controlled release capability through coordinated operation of reliable individual modules.
Solution Approach 2:
The device incorporates redundant components and backup systems that are activated beforehand when malfunctions are detected. This includes备用 pumps and reservoirs that can take over if the primary system fails, ensuring continuous reliable operation throughout the intended duration of therapeutic release.
2Ease of operation
If the device is made smaller and lighter for wearability, then ease of operation is improved, but manufacturing precision requirements worsen
Solution Approach 1:
The device utilizes flexible thin-film membranes and compact housing structures that reduce overall size and weight for improved wearability. These thin-film components are manufactured using precision deposition techniques that achieve the required manufacturing precision through controlled material layering and sealing processes.
Solution Approach 2:
Components are nested within each other to minimize overall device volume. The pump mechanism is integrated within the reservoir structure, and control electronics are embedded in the housing layers, achieving compact wearability while maintaining manufacturing precision through standardized nested component interfaces.
3Ease of operation
If the device is made smaller for wearability, then ease of operation is improved, but device complexity worsens
Solution Approach 1:
Individual components are designed to perform multiple functions to reduce overall device complexity. The pump mechanism serves both as a fluid delivery system and a volume measurement reference, while the control module integrates reservoir monitoring, pump control, and alarm functions, achieving compact wearability without proportionally increasing complexity.
Solution Approach 2:
Multiple functional elements are merged into integrated assemblies. The reservoir and pump are combined as a single fluid delivery unit, and the control electronics are integrated with the mechanical components through shared housing and communication interfaces, reducing the number of separate parts while maintaining wearability.
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 system enhances the reliability and efficiency of fluid delivery by reducing malfunction rates and improving the usability of wearable devices for controlled release of therapeutics.
Implementation Method 1
a needle carriage and hydrophobic filter
Data Source
AI summary
A fill adapter system for an infusion pump assembly. The system includes a reusable fill adapter base, the base including a volume control mechanism to adjust an available fill volume of a reservoir of the infusion pump assembly and a pump mechanism configured to pump air into a fluid vial. The system also includes a vial adapter assembly including a first needle configured to penetrate a septum of the fluid vial for fluidly coupling the pump mechanism to the fluid vial and a second needle having a first end configured to penetrate the septum of the fluid vial and a second end configured to penetrate a septum of the reservoir of the infusion pump assembly to allow transfer of fluid from the fluid vial to the reservoir of the infusion pump assembly in response to air being pumped into the fluid vial and a needle carriage adapted to carry the first needle and the second needle, wherein the needle carriage slidably attached to the interior of the vial adapter assembly, wherein the needle carriage adapted to slide from a vial end of the vial adapter to a receptacle end of the vial adapter.