Sterilization Cap With Sponge Reservoir for Needleless IV Connectors
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Solution Overview
Problem
The existing methods for sterilizing needleless IV connections in medical settings are inefficient and often incomplete due to the manual use of individually packaged antiseptic swabs, which can lead to inadequate sterilization.
Innovation Solution
A sterilization cap for a hypodermic syringe with a sponge cavity saturated with sterilizing liquid, securely attached to the syringe or IV lines, allowing for convenient and effective sterilization of needleless connections by compressing the sponge to release the liquid onto the connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If individually packaged antiseptic swabs are used for sterilization, then portability is maintained, but sterilization completeness and ease of operation deteriorate due to manual handling requirements
Solution Approach 1:
The patent combines multiple individually packaged swabs into a single integrated cap structure containing a sponge reservoir. The cap integrates the container, sponge, and delivery mechanism into one unified device that attaches to the syringe, eliminating the need to handle multiple separate swabs while maintaining sterilization functionality.
Solution Approach 2:
The cap serves multiple functions: it protects the syringe tip when not in use, contains and dispenses sterilizing solution, and provides a ready-to-use sterilization interface. This multi-functional design replaces the single-function individual swabs with a versatile integrated system.
2Productivity
If individually packaged swabs are used, then sterility is maintained, but time efficiency and productivity worsen due to the need to open and handle each swab separately
Solution Approach 1:
The sterilizing solution is pre-loaded into the sponge reservoir during manufacturing, and the cap is pre-assembled with all components in place. This preliminary preparation eliminates the time required to open individual swab packages and manually apply sterilizing solution during the procedure.
Solution Approach 2:
Multiple swab functions are merged into a single cap unit that can sterilize multiple connection points sequentially without requiring package opening or rehandling, thereby increasing sterilization efficiency and reducing procedural time.
3Reliability
If manual swab handling is required, then individual sterilization points can be targeted, but reliability worsens due to incomplete or missed sterilization
Solution Approach 1:
The sponge is designed to be self-expressing when compressed against the connection point, automatically dispensing the sterilizing solution without requiring manual manipulation or judgment about application adequacy. This self-service mechanism ensures consistent and complete sterilization.
Solution Approach 2:
The mechanical compression of the sponge provides immediate tactile feedback to the user, confirming that adequate pressure has been applied for proper sterilization. This feedback mechanism reduces the risk of incomplete sterilization while simplifying the operation.
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 sterilization cap provides a convenient and thorough method for sterilizing needleless connections, reducing the need for individual swabs and ensuring a more reliable sterile environment during medical procedures.
Implementation Method 1
compress the sponge which sterilizes the clave tip with sterilizing liquid expressed from the sponge
Data Source
AI summary
A sterilization cap carried on a needle support end of a syringe. The cap includes a main body having first and second ends, the first end being connectable to the needle support end, as well as being connectable onto the needle support end alone of a primary or IV extension line. A sponge secured within a sponge cavity within the second end is saturated with a sterilizing liquid. A removable cover attached to the second sealingly encloses the sponge until the syringe is used. The second end is sized, when the cover is removed, to fit over a tip of a CLAVE needleless connector extension or IV tubing a distance sufficient to compress the sponge to sterilize the tip with sterilizing liquid expressed from the sponge.