Rotating Disinfecting Syringe Cap for Aseptic VAD Flushing
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Solution Overview
Problem
Current methods for disinfecting vascular access devices fail to ensure compliance with aseptic technique by eliminating the need for a syringe.
Innovation Solution
A syringe assembly with an integrated disinfecting cap that rotates from a covering position to an exposed position, allowing for one-handed operation to disinfect and connect to vascular access devices, ensuring aseptic technique compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate swabbing and disinfecting step is used, then the vascular access device can be disinfected, but the process becomes more complex and compliance is not ensured
Solution Approach 1:
The patent combines the disinfecting function with the syringe cap, creating an integrated assembly where the absorbent pad containing disinfectant is positioned within the cap itself. This eliminates the need for separate swabbing and disinfecting steps, as the cap serves both as a protective cover and a disinfection device.
Solution Approach 2:
The syringe assembly is designed to perform its own disinfection function through the integrated cap with absorbent pad. The cap automatically applies disinfectant to the vascular access device when attached, eliminating the need for separate manual disinfection actions by the practitioner.
2Reliability
If an integrated disinfecting cap is added to the syringe, then disinfection compliance is ensured, but the device complexity increases
Solution Approach 1:
The cap and absorbent pad are integrated into a single assembly that attaches to the syringe barrel, combining protective covering and disinfection functions in one component rather than requiring separate items.
Solution Approach 2:
The cap serves multiple functions: it protects the distal tip when not in use, contains the absorbent pad with disinfectant, and applies disinfectant to the vascular access device during attachment. This multi-functionality reduces the need for additional separate components.
3Ease of operation
If the distal tip is always exposed, then connection is easier, but contamination risk increases
Solution Approach 1:
The cap with absorbent pad is pre-positioned on the syringe barrel, so the disinfectant is already in place and ready to apply when the syringe is attached to the vascular access device. This preliminary preparation ensures disinfection occurs automatically without requiring separate preparatory steps.
Solution Approach 2:
The cap acts as an intermediary between the syringe barrel and the external environment, providing a protective barrier that can be easily removed or rotated to expose the distal tip only when needed, thereby controlling exposure and minimizing contamination risk.
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
Ensures consistent disinfection of vascular access devices during flush procedures, reducing the risk of catheter-related bloodstream infections by promoting aseptic technique without additional steps.
Implementation Method 1
an absorbent pad containing disinfectant disposed between the removable seal and the distal tip
Data Source
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AI summary
Syringe assemblies comprising an absorbent pad containing disinfectant and a rotatable cap to ensure adherence to aseptic techniques for use in flush procedures for vascular access devices (VAD's) are described. Also described are methods of disinfecting vascular access devices.