Self-Disinfecting Medical Vial Cap with Movable Top

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Solution Overview

Problem

Medical professionals face challenges in maintaining aseptic techniques when repeatedly accessing medication vials, as the rubber septum can become contaminated, leading to potential bloodstream infections, especially under time or stress constraints.

Innovation Solution

A self-disinfecting capping device with a top and bottom portion and a connector that allows movement between fully-seated and open positions, featuring a disinfecting absorbent material soaked with a disinfecting agent, ensuring the septum remains sterile by automatically returning to a closed position after use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If medical professionals manually disinfect the rubber septum with a pad, then the risk of contamination is reduced, but compliance is inconsistent under time or stress constraints

Engineering Contradiction:

Improvecompliance with sterile techniquesVSAvoidconvenience of disinfection process

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The capping device automatically performs disinfection by maintaining contact between the absorbent material and the rubber septum without requiring manual intervention. The device self-regulates the disinfection process, ensuring consistent application of the disinfecting agent regardless of external conditions or user diligence.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The absorbent material is pre-loaded with the disinfecting agent before use, and the device is designed to automatically apply it to the rubber septum upon attachment. This preliminary preparation eliminates the need for manual disinfection steps during critical moments, ensuring sterile technique compliance without adding operational burden.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the capping device maintains constant contact with the rubber septum, then sterile technique compliance is ensured, but access to the vial becomes difficult

Engineering Contradiction:

Improvemaintainance of sterile techniqueVSAvoidaccess to the vial

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The capping device incorporates a movable top portion that can dynamically transition between a closed position (maintaining disinfecting contact) and an open position (allowing needle access). This dynamic design allows the system to adapt between protection mode and access mode, resolving the contradiction between maintaining sterile technique and enabling vial access.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The device is divided into separate functional portions: a bottom portion that maintains constant contact with the rubber septum for disinfection, and a top portion that can be opened to allow access. This segmentation allows each portion to perform its specific function independently - the bottom portion ensures sterile technique while the top portion enables access when needed.

Inventive Principle:

Principle #1Segmentation

3Productivity

If the same needle and syringe are reused for multiple vials, then productivity increases, but the risk of cross-contamination increases

Engineering Contradiction:

Improveefficiency of medication drawingVSAvoidcross-contamination risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The capping device with its disinfecting absorbent material acts as an intermediary barrier between the needle/syringe system and the vial contents. By maintaining a disinfected interface at the rubber septum, it prevents cross-contamination between multiple vials accessed by the same needle and syringe, enabling safe reuse and thus improving productivity without increasing contamination risk.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Guarantees full compliance with sterile techniques by maintaining contact between the disinfecting pad and the rubber septum, reducing the risk of contamination and infection during multiple access procedures.

Implementation Method 1

a disinfecting absorbent material disposed inside the hollow and extending through the opening in the inner surface of the bottom portion

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

The capping device is configured for attachment to the medical container to bring the disinfecting absorbent material in contact with the medical container

Methodology Applied

Scientific EffectDisinfection:

Data Source

PatentUS10195110B2Capping device for disinfecting medical container

Publication Date: 2019.02.05 DRMA GROUP INTERNATIONAL LLC

AI summary

A capping device for disinfection of a medical container is provided. The capping device includes a top portion having an inner surface, a bottom portion having an inner surface and an opening, and a connector. The connector couples the top portion of the capping device to the bottom portion thereof in a manner which permits movement of the top portion between a fully-seated position on the bottom portion of the capping device to form a hollow defined by the inner surface of the top portion of the capping device and the inner surface of the bottom portion thereof, and a position apart from the opening to permit ingress to the vial. The capping device further includes a disinfecting absorbent material disposed inside the hollow and extending through the opening in the inner surface of the bottom portion.