Integral Sterilization Indicator Ink Line in Pouch Cuff
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Solution Overview
Problem
Current packaging systems for sterilizable articles are labor-intensive and costly, with a high risk of contamination during aseptic presentation, and often require additional internal indicator strips that can be misplaced, increasing the risk of post-operative infection.
Innovation Solution
A sterilization pouch with an integral internal sterilization indicator sensitive to sterilization agents, printed as an ink line on the interior or exterior, which changes color to indicate proper sterilization, eliminating the need for separate indicator strips and reducing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a double-packaged sterile article is opened by a non-scrubbed attendant, then the article can be presented to the sterile field, but the risk of contamination increases and the procedure becomes time-consuming
Solution Approach 1:
The packaging system is divided into two distinct functional components: an inner packaging element that maintains sterility during storage and transport, and an outer packaging element that facilitates controlled opening and presentation. This segmentation allows each component to optimize its specific function while working together to resolve the contradiction between ease of operation and sterility maintenance.
Solution Approach 2:
The outer packaging element acts as an intermediary between the inner packaging element and the sterile field. It provides a controlled interface that allows the non-scrubbed attendant to open the package without directly contacting the sterile article, thereby maintaining sterility while facilitating easy presentation. The outer packaging serves as a protective mediator during the transition from storage to use.
2Loss of information
If separate indicator strips are placed in the packaging, then sterilization status can be indicated, but the risk of misplacement increases and the system becomes more complex
Solution Approach 1:
The indicator strip is merged with the inner packaging element, forming an integrated unit where the indicator is permanently attached to the packaging. This eliminates the risk of misplacement associated with separate indicator strips while maintaining the sterilization status indication function. The merging of these components reduces system complexity by eliminating the need for separate indicator placement and tracking procedures.
3Reliability
If cloth wrap is used for sterilization, then the article can be sterilized, but the process is labor-intensive and time-consuming
Solution Approach 1:
The packaging materials are selected and designed with specific parameters in mind: the inner packaging element uses materials with controlled permeability and strength characteristics, while the outer packaging element uses materials with specific barrier properties and opening characteristics. These parameter optimizations enable efficient sterilization while maintaining effectiveness, reducing the labor and time required compared to traditional cloth wrap methods.
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 packaging system minimizes time and costs associated with sterilized article presentation, decreases contamination instances, and provides clear visual indication of sterilization efficacy, thereby reducing the potential for post-operative infections.
Implementation Method 1
An integral internal sterilization indicator is provided. The integral indicator comprises a sterilizing agent sensitive substance. The sterilizing agent sensitive substance can be an indicator ink printed as an ink line on the interior of the sterilization pouch below the cuff.
Data Source
AI summary
A packaging system in accordance with the principles of the present invention includes a sterilization pouch. The pouch includes a posterior portion attached to an anterior portion along three edges. The two portions define the pouch. The top part of the pouch is inverted so that the inside part of the pouch is facing outward and forms a cuff around the pouch. An integral internal sterilization indicator is further provided. The integral indicator comprises a sterilizing agent sensitive substance. The sterilizing agent sensitive substance can be an indicator ink printed as an ink line on the interior of the sterilization pouch below the cuff. Thus, the indicator becomes visible during aseptic delivery of the packaged article to provide a clear indication as to whether or not adequate conditions for sterilization have been achieved. In a further embodiment, the indicator ink line repeats as a pattern throughout the interior of the sterilization pouch. Alternatively, the indicator could be printed as an ink line on the exterior of the sterilization pouch below the cuff. In a further embodiment, both interior and exterior printing could be used.