Infusion Base Connector Cannula Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for an improved infusion set design that securely disposes of used steel needle infusion sets to prevent exposure of the steel cannula, as the existing disposable protective tubes are not always available and can be easily detached, posing a risk of accidental contact with bodily fluids.
Innovation Solution
The infusion set incorporates connecting elements such as male threads and reciprocal female grooves, or flexible tabs, on the infusion base and fluid tubing connector to securely attach and detach the connector, eliminating the need for a separate protective tube and ensuring the steel cannula is protected before and after use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disposable protective tube is used to cover the steel cannula, then the steel cannula is protected from unwanted contact, but the protective tube can be easily detached and is not securely attached to the base
Solution Approach 1:
The patent combines the protective tube function with the fluid connector by integrating the protective tube into the connector structure. The connector serves dual purposes: as a fluid connection component and as a protective shield for the steel cannula. This eliminates the need for a separate protective tube and ensures secure attachment since the connector is permanently integrated into the base assembly.
Solution Approach 2:
The fluid connector is designed to perform multiple functions: it provides fluid pathway connection between the pump and infusion site, and simultaneously serves as a protective covering for the steel cannula. This multi-functional design resolves the contradiction by making the protective element an integral part of the system rather than a separate component that can detach.
2Reliability
If a separate disposable protective tube is used, then the steel cannula is protected before use, but an additional component is required that increases device complexity
Solution Approach 1:
The patent merges the protective tube function with the fluid connector, eliminating the need for a separate protective tube component. The connector itself is designed to enclose and protect the steel cannula, reducing the total number of components while maintaining protective functionality throughout the infusion process.
Solution Approach 2:
The fluid connector is designed as a multi-functional component that simultaneously provides fluid connection and cannula protection. This universal design approach eliminates redundant components and simplifies the overall device structure while ensuring continuous protection of the steel cannula.
3Ease of operation
If the protective tube is loosely attached to the base, then it can be easily removed, but it may detach accidentally exposing the steel cannula
Solution Approach 1:
By integrating the protective function into the fluid connector itself, the patent eliminates the detachment issue entirely. The connector is permanently attached to the base and provides continuous protection throughout the infusion process. Removal of protection would require disconnecting the fluid pathway, which is a deliberate and controlled action rather than accidental detachment.
Solution Approach 2:
The protective coverage extends beyond what is minimally required - the fluid connector provides protection not only before insertion but also throughout the entire infusion process and during removal. This excessive protection approach ensures that the steel cannula remains covered in all operational states, preventing accidental exposure while maintaining ease of operation.
Data Source
AI summary
An infusion base for attachment to a user of an infusion set comprises an adapter having a lower portion, an inner wall portion, and a gap between the lower portion and the inner wall portion. At least one of the lower portion and the inner wall portion is configured to receive an attachment.