Chlorhexidine Acetate Cleaning Agent Residue-Free Drying
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Solution Overview
Problem
Current antiseptic cleaning agents, such as those containing chlorhexidine gluconate, are ineffective against antibiotic-resistant pathogens like MRSA and VRE, and they often leave a tacky residue that can interfere with medical device functionality and patient comfort.
Innovation Solution
An antiseptic cleaning agent comprising chlorhexidine acetate, which is effective against a wide range of pathogens and does not leave a tacky residue upon drying, using a solvent like alcohol or water that evaporates without residue, and optionally including a second biocidal agent like triclosan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cleansers containing chlorhexidine gluconate are used to clean skin and medical devices, then antimicrobial effectiveness is improved, but a tacky residue is left on surfaces
Solution Approach 1:
The patent changes the chemical composition parameters of the cleanser by substituting chlorhexidine gluconate with chlorhexidine acetate and adjusting the alcohol content to 70-95%, which fundamentally alters the drying characteristics and residue properties while maintaining antimicrobial effectiveness
Solution Approach 2:
The invention creates a composite cleaning solution combining chlorhexidine acetate with specific concentrations of alcohol and water, where the synergistic interaction between components achieves both effective disinfection and non-tacky residue formation
2Reliability
If cleansers are used multiple times in the same area to ensure thorough cleaning, then cleaning effectiveness is improved, but the tacky residue builds up and worsens
Solution Approach 1:
By modifying the chemical parameters to use chlorhexidine acetate instead of gluconate and optimizing alcohol concentration, the formulation enables repeated applications without cumulative tacky residue build-up, allowing thorough cleaning to be achieved multiple times without worsening the harmful effect
3Object-generated harmful factors
If alcohol-based solvents are used in the cleaning agent, then evaporation without residue is improved, but flammability risk increases
Solution Approach 1:
The patent optimizes the alcohol concentration within the 70-95% range, which balances evaporation rate and residue-free drying against flammability risk, creating a formulation that achieves non-tacky residue while managing safety concerns through controlled composition
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 chlorhexidine acetate-based cleaning agent effectively kills pathogens, including antibiotic-resistant strains, without leaving a tacky residue, reducing the risk of infection and improving the functionality and comfort of medical devices.
Implementation Method 1
the chlorhexidine acetate in the described cleaning agent does not leave a tacky residue when it dries
Implementation Method 2
using a solvent like alcohol or water that evaporates without residue
Data Source
AI summary
An antiseptic cleaning agent, generally, comprising chlorhexidine acetate and a solvent, such as an alcohol and/or water. The chlorhexidine acetate acts as a highly effective biocide. Additionally, the chlorhexidine acetate allows the cleaning agent to dry without leaving a tacky residue. Where the cleaning agent comprises one or more alcohols, the alcohols may comprise any suitable alcohols, including lower alcohols having from 1 to 6 carbon atoms, such as ethanol and isopropanol. Where the ratio of ethanol to isopropanol may be from between about 1:1000 to about 1000:1. In addition to chlorhexidine acetate, the cleaning agent optionally comprises another non-alcohol biocide, such as triclosan. The cleaning agent can be used in any suitable manner. For instance, the cleaning agent may be impregnated in an absorbent material, such as a towelette, swabstick, or gauze. Additionally, the absorbent material may comprise a positively charged or a non-ionic substance, such as polypropylene or polyester.