Extractables and Leachables Analyzer Skill

Purpose

The Extractables and Leachables Analyzer Skill supports E&L study design and data analysis for chemical characterization of medical devices per ISO 10993-18, including extraction study design and toxicological risk assessment.

Capabilities

• •Extraction solvent and condition selection
• •Analytical method recommendations (GC-MS, LC-MS, ICP)
• •AET (Analytical Evaluation Threshold) calculation
• •Compound identification assistance
• •Toxicological risk assessment templates
• •ICH Q3D elemental impurity guidance
• •Study protocol generation
• •Data interpretation support
• •Safety assessment reporting
• •Simulated use extraction design
• •Accelerated extraction studies

Usage Guidelines

When to Use

• •Designing E&L characterization studies
• •Analyzing E&L data
• •Conducting toxicological risk assessments
• •Preparing chemical characterization reports

Prerequisites

• •Device materials documented
• •Contact conditions defined
• •Analytical capabilities identified
• •Toxicological resources available

Best Practices

• •Use risk-based approach per ISO 10993-18
• •Consider worst-case extraction conditions
• •Calculate AET based on patient exposure
• •Document compound identification rationale

Process Integration

This skill integrates with the following processes:

• •Extractables and Leachables Analysis
• •Biological Evaluation Planning (ISO 10993)
• •Biomaterial Selection and Characterization
• •510(k) Premarket Submission Preparation

Dependencies

• •Mass spectral databases
• •Toxicology databases (ToxNet)
• •ISO 10993-18 standard
• •ICH Q3D guidelines
• •Analytical laboratory capabilities

Configuration

extractables-leachables-analyzer:
  extraction-types:
    - exhaustive-extraction
    - simulated-use
    - accelerated
  analytical-methods:
    - GC-MS
    - LC-MS
    - ICP-OES
    - ICP-MS
    - headspace-GC
  solvents:
    - polar
    - semi-polar
    - non-polar

Output Artifacts

• •E&L study protocols
• •Extraction condition specifications
• •Analytical method recommendations
• •AET calculations
• •Compound identification tables
• •Toxicological risk assessments
• •Chemical characterization reports
• •Safety assessment summaries

Quality Criteria

• •Extraction conditions appropriate for device use
• •Analytical methods detect relevant compounds
• •AET properly calculated and applied
• •Compound identification well-supported
• •Toxicological assessment comprehensive
• •Documentation supports regulatory review