Medical Adhesive Removal With Tetrahydrofurfuryl Acetate
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Solution Overview
Problem
Current methods for removing medical adhesives, such as acetone, are limited in a surgical environment due to flammability, skin irritation, and lack of efficacy, necessitating a safer and more effective solution.
Innovation Solution
A solution comprising tetrahydrofurfuryl acetate (THFA) is used to dissolve medical adhesives, which can be applied with or without additives like perfumes and emollients, and is applied using a wipe or directly to the skin, facilitating removal without damaging the skin or causing strong odors or flammability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If acetone is used to remove medical adhesive, then the adhesive can be removed, but the solution becomes flammable and causes skin irritation
Solution Approach 1:
The patent changes the chemical composition parameters by replacing acetone with a blend of isopropyl myristate and isopropyl alcohol in specific proportions (70-95% isopropyl myristate and 5-30% isopropyl alcohol), thereby maintaining adhesive removal efficacy while eliminating flammability and skin irritation issues
Solution Approach 2:
The patent uses a composite solvent system combining isopropyl myristate and isopropyl alcohol, where the two components work synergistically to dissolve medical adhesive effectively while providing a safer, non-flammable alternative to pure acetone
2Object-affected harmful factors
If mineral oil and soap and water are used to remove medical adhesive, then the solution is safer and non-flammable, but the adhesive removal efficacy is insufficient
Solution Approach 1:
The patent modifies the chemical parameters by using esters (isopropyl myristate) which have superior solvent properties for cyanoacrylate adhesives compared to mineral oil, while maintaining the safety benefits of non-flammable formulations
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
THFA effectively removes medical adhesives from various surfaces, including skin and medical instruments, without causing skin irritation or flammability, while being non-flammable and odorless, ensuring safe and efficient adhesive removal.
Implementation Method 1
Medical adhesive may be removed by applying a solution including tetrahydrofurfuryl acetate (THFA) to the surface upon which is located the adhesive
Data Source
AI summary
Medical adhesive may be removed by applying a solution including tetrahydrofurfuryl acetate (THFA) to the surface upon which is located the adhesive and rubbing the surface to facilitate removal of the adhesive. The solution may be applied to a wipe before application to the surface and the wipe may be used to rub the surface. The surface may be living or dead human or animal skin, hard surfaces and medical instruments. Various additional ingredients may be added to the solution, like perfumes, emollients and other commonly known skin products and polymer diluents.