Sterilization & Packaging

Protocol-level guide to cleaning validation for reusable surgical instruments — covering artificial soil selection, protein/hemoglobin/TOC endpoints, worst-case device families, manual vs automated cleaning, ANSI/AAMI ST98 acceptance criteria, sample size justification, and report structure.

Manufacturer-facing guide to reprocessing validation for reusable medical devices under ISO 17664-1, ISO 17664-2, FDA guidance, and EU MDR — covering cleaning, disinfection, sterilization validation, worst-case device families, IFU content, and premarket submission evidence.

Step-by-step guide to writing reprocessing instructions for reusable medical device IFUs — covering point-of-use treatment, cleaning, disinfection, sterilization, drying, storage, reuse life claims, warnings, usability validation, and audit readiness per FDA guidance, ISO 17664, and ISO 20417.

Equipment and process validation guide for washer-disinfectors in medical device reprocessing — covering ISO 15883 series parts 1–7, IQ/OQ/PQ methodology, A₀ value concept, load configurations, chemical dosing, temperature monitoring, microbiological endpoints, maintenance, and deviation handling.

Complete guide to ASTM D4169 performance testing for medical device packaging — distribution cycle selection (DC-13, DC-6, DC-12), assurance levels (I, II, III), test schedules (drop, compression, vibration, low pressure, impact), pre-conditioning per ASTM D4332, relationship to ISO 11607 sterile barrier validation, FDA 510(k) requirements, sample size justification, acceptance criteria development, common pitfalls, and step-by-step implementation guide.

How to perform bacterial endotoxin testing (BET) for medical devices — LAL gel-clot, chromogenic, and turbidimetric methods, recombinant Factor C (rFC), USP <85>/<161>, ISO 11737-3, FDA 2026 pyrogen guidance update, endotoxin limits by device type, method selection, and regulatory submissions.

How to perform bioburden testing for medical devices under ISO 11737-1:2018 — method validation, recovery efficiency, extraction techniques, enumeration methods, dose setting, and routine monitoring for sterilization validation.

How to classify, design, validate, and monitor cleanrooms for medical device manufacturing under ISO 14644 — particle count limits, classification methodology, environmental monitoring programs, FDA and EU GMP requirements, and the 2025 update to ISO 14644-5.

How to validate and implement vaporized hydrogen peroxide (VHP) sterilization under ISO 22441:2022 — FDA Established Category A recognition, process parameters, validation protocol, material compatibility, and regulatory pathway for medical device manufacturers.

A comprehensive guide to radiation sterilization under ISO 11137 — gamma irradiation, electron beam, and X-ray methods, dose establishment methods (VDmax, Method 1, Method 2), materials compatibility, the 2025 standard update, validation workflow, and quarterly dose audits.

A comprehensive guide to ISO 17665 steam (moist heat) sterilization — process physics, the 2024 consolidated standard, IQ/OQ/PQ validation, F0 lethality calculations, biological indicators, overkill vs bioburden-based cycles, autoclave qualification, and routine monitoring.

Everything you need to know about validating medical device packaging to ISO 11607 — including sterile barrier systems, material qualification, accelerated aging, distribution simulation, seal strength testing (ASTM F88), bubble leak testing (ASTM F2096), dye penetration, shelf-life claims, FDA and EU MDR requirements, and step-by-step validation workflows.

Comprehensive guide to medical device shelf life testing — accelerated aging per ASTM F1980, real-time aging studies, sterile barrier system testing, packaging validation, and expiration date justification for FDA and EU MDR submissions.

A comprehensive guide to EO sterilization — process development, ISO 11135 validation, residuals testing, environmental compliance, and how it compares to alternative sterilization methods.