ISO 17664-1:2021

Overview - ISO 17664-1:2021 (Processing of medical devices - Part 1)

ISO 17664-1:2021 specifies the information medical device manufacturers must provide to support safe and effective processing of critical and semi‑critical medical devices - devices that enter sterile body sites or contact mucous membranes/non‑intact skin, and devices intended to be sterilized. The standard defines the scope of required processing information (initial treatment, cleaning, disinfection, sterilization, inspection, packaging, storage, transportation, etc.) and sets expectations for validation, risk analysis and presentation of processing instructions. It does not itself define processing procedures but requires manufacturers to supply detailed, validated guidance for reprocessing and pre‑use processing.

Key topics and technical requirements

• Scope and applicability: Focus on critical and semi‑critical devices and devices intended for sterilization; excludes most non‑critical devices, textile drapes, and single‑use devices supplied ready for use.
• Information content: Manufacturers must provide comprehensive data to enable safe processing, including:
  • Initial point‑of‑use treatment and preparation before cleaning
  • Cleaning (manual and automated) and disinfection procedures
  • Drying, inspection, maintenance and functional checks
  • Packaging, validated sterilization parameters, storage and transport conditions
• Validation and evidence: Processes identified in the instructions need to be validated; the standard requires manufacturers to support claims with appropriate validation data.
• Risk management: Integration with risk analysis (referencing ISO 14971) to identify processing limitations, restrictions and safety considerations.
• Presentation: Clear, usable presentation of processing information for end users (e.g., instructions for use, labelling, technical files).
• Supporting annexes: Informative annexes provide commonly used processing methods, examples of instructions, device classification guidance and additional manufacturer guidance.

Practical applications and users

ISO 17664-1 is used by:

• Medical device manufacturers - to develop compliant Instructions for Use (IFU) and technical documentation for reusable and sterilizable products.
• Regulatory and quality teams - to demonstrate conformity for market approval and post‑market surveillance.
• Validation engineers and sterile processing departments (SPD/CSSDs) - to design and validate cleaning, disinfection and sterilization workflows based on manufacturer data.
• Contract sterilization/service providers and hospitals - to interpret manufacturer processing requirements and ensure safe reprocessing of reusable devices. Practical uses include preparing IFUs, establishing validated reprocessing protocols, conducting risk assessments, and training sterile services personnel.

Related standards (select)

• ISO 17664-2:2021 - additional guidance on applying the ISO 17664 series to devices.
• ISO 14971 - medical device risk management (referenced in ISO 17664-1).
• ISO 11139, ISO 13485 - related terminology and device/manufacturer definitions.

Keywords: ISO 17664-1, processing of medical devices, sterilization, cleaning, disinfection, reprocessing instructions, medical device manufacturer, critical and semi‑critical devices.