Minocycline Oxidized Cellulose Composition for SSI Prevention
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Solution Overview
Problem
Current treatments for Surgical Site Infections (SSIs) rely on high doses of systemic antibiotics, which often lead to antimicrobial resistance and significant side effects, as they require higher concentrations to be effective, limiting their usefulness in preventing or treating SSIs.
Innovation Solution
A composition comprising oxidized cellulose (OC) and minocycline, where minocycline is present at significantly lower concentrations (2.7 μg to 21.6 μg per 1.0 g OC) than traditional methods, demonstrating a synergistic effect that enhances antimicrobial activity, potentially reducing resistance and side effects, and can be used locally to prevent SSIs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high doses of systemic antibiotics are used to treat Surgical Site Infections, then antimicrobial efficacy is improved, but antimicrobial resistance develops and side effects increase
Solution Approach 1:
The patent applies local quality by delivering antibiotics directly to the surgical site through oxidized cellulose hemostatic agents. Instead of systemic administration, the antibiotic is localized at the infection site, providing high concentration where needed while minimizing systemic exposure and resistance development
Solution Approach 2:
The patent combines oxidized cellulose hemostatic agent with antibiotic to create a composite material. This composite provides both hemostatic function and localized antimicrobial activity, allowing the antibiotic to be delivered effectively at the surgical site without requiring high systemic doses
2Reliability
If high concentrations of minocycline are used alone, then broad spectrum antibiotic activity is achieved, but resistance development increases and side effects occur
Solution Approach 1:
The patent changes the concentration parameter of minocycline from high (when used alone) to low (when combined with oxidized cellulose). The synergistic interaction allows effective broad-spectrum activity at lower concentrations, reducing the parameters associated with resistance and side effects
3Reliability
If systemic antibiotics are administered, then infection treatment is achieved, but only a small percentage of active substance reaches the target site
Solution Approach 1:
The patent extracts the antibiotic delivery from the systemic circulation system and places it directly at the target site. By incorporating minocycline into oxidized cellulose hemostatic agents, the antibiotic is delivered locally to the surgical site, ensuring high concentration at the target without relying on systemic distribution
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 combination of OC and minocycline provides broad-spectrum antibiotic activity with lower antibiotic doses, reducing resistance development and side effects, while maintaining high antimicrobial efficacy, even when used with additional antibiotics like rifampin or clindamycin, effectively preventing SSIs.
Implementation Method 1
oxidized cellulose (OC), such as oxidized regenerated cellulose (ORC)
Data Source
AI summary
Disclosed are compositions comprised of Oxidized Cellulose (OC), such as oxidized regenerated cellulose (ORC), and an antibiotic comprised of minocycline, methods of preparation thereof and uses thereof.