Overview
SIST-TS CEN ISO/TS 17664-3:2026 sets out comprehensive guidance for grouping reusable medical devices based on their cleaning requirements. This technical specification, prepared collaboratively within ISO and CEN technical committees, establishes a structured approach for medical device manufacturers to designate devices into cleaning classification categories. It also provides the framework for developing appropriate cleaning instructions and processes, enhancing patient safety and compliance across healthcare settings.
By facilitating standardized grouping-product families and related cleaning processes-this standard ensures consistency and clarity for manufacturers, healthcare providers, and processing facilities responsible for cleaning reusable medical devices. The guidance helps streamline cleaning validation and supports effective infection control.
Key focus areas: cleaning classification categories, product family definition, cleaning process designation, manufacturer communication, and cleaning process validation.
Key Topics
- Cleaning Classification Categories: The standard introduces a system to categorize medical devices based on cleaning requirements and process complexity. Devices are grouped for efficient and validated cleaning.
- Product Family Designation: Devices with similar cleaning attributes-such as geometry, materials, and clinical use-can be grouped into product families. This supports unified cleaning instructions and process validation.
- Manual vs. Automated Cleaning: The specification outlines distinct categories for manual and automated cleaning based on surface accessibility and the need for specialized equipment or steps.
- Manual Cleaning
- M1: Surfaces directly accessible or easily manipulated
- M2: Some inaccessible surfaces, requires additional but standard tools
- M3: Inaccessible surfaces requiring specialized cleaning equipment or accessories
- Automated Cleaning
- A1: All surfaces accessible, compatible with standard automated processes
- A2: Some inaccessible surfaces, may require manual pre-cleaning
- A3: Complex devices needing specialized connectors or cycle parameters
- Instructions for Use (IFU): Emphasis is placed on manufacturers providing detailed, validated cleaning instructions tailored to each classification and product family.
- Cleaning Process Validation: Identification of a “master product” within a product family, representing the most challenging cleaning scenario, to ensure the effectiveness and reproducibility of cleaning validation.
Applications
For Medical Device Manufacturers:
- Develop clear and validated cleaning instructions for each product family and classification, improving regulatory compliance.
- Streamline cleaning process validation and risk analysis by applying standardized cleaning categories.
- Better communicate appropriate cleaning methods to end-users, reducing potential for device contamination and misuse.
For Healthcare Processing Facilities:
- Use classification categories and product families to efficiently organize cleaning workflows, select cleaning equipment, and allocate staff resources.
- Ensure staff are trained according to the complexity level and equipment needs of each device family.
- Validate facility-specific cleaning methods when deviating from manufacturer’s IFU, ensuring safe medical device reprocessing.
For Regulatory Bodies and Quality Systems:
- Reference the standard to assess manufacturer documentation and healthcare facility cleaning protocols.
- Foster harmonized cleaning practices across jurisdictions, reducing discrepancies in medical device reprocessing.
Related Standards
- ISO 17664-1: Requirements for information to be provided by the medical device manufacturer for the processing of medical devices.
- ISO 17664-2: Additional requirements and guidance for processing of medical devices not covered in Part 1.
- ISO 11139: Terminology used in sterilization and sterilizer-related processes.
- ISO 15883-5: Cleaning requirements and acceptance criteria for washer-disinfectors.
ICS Codes:
- 11.040.01 - Medical equipment in general
- 11.080.01 - Sterilization and disinfection in general
Using SIST-TS CEN ISO/TS 17664-3:2026 enables manufacturers and healthcare providers to achieve efficient, safe, and regulatory-compliant cleaning processes for reusable medical devices, ultimately helping to ensure patient safety and optimal device performance.