Medical devices utilizing animal tissues and their derivatives - Part 2: Controls on sourcing, collection and handling (ISO 22442-2:2015); German version EN ISO 22442-2:2015
1Key Takeaways
This part of ISO 22442 specifies the control requirements for the sourcing, material acquisition, and handling (including storage and transport) of animal-derived animals and their tissues (excluding in vitro diagnostic products) used in the manufacture of medical devices. This part is used in conjunction with the risk…
2Expert Interpretation
EN ISO 22442-2:2015 specifies detailed control requirements for the procurement, collection, and handling of raw materials for medical devices using animal tissue and its derivatives. This standard, which replaces the 2008 version, strengthens risk management for infectious diseases like mad cow disease and establishes a full traceability system from animal source to finished product, providing key technical support for the biosafety of medical devices.
Background of the Standard Revision and Technological Evolution
EN ISO 22442-2:2015, as the replacement for DIN EN ISO 22442-2:2008-03, reflects the continued improvement of biosafety requirements in the medical device regulatory landscape. This standard, classified under ICS 11.100.99, specifically addresses the manufacturing processes of medical devices utilizing animal tissue and its derivatives. This revision, based primarily on the accumulated global experience with BSE prevention and control and the deepening understanding of emerging infectious diseases, systematically optimizes source control measures.
Analysis of Core Control Requirements
The standard establishes a three-tiered control system: source animal selection, tissue collection and processing, and raw material traceability management. Regarding source animal control, the standard requires clarity regarding the animal's geographic origin, husbandry conditions, and health status, with stricter control measures being implemented for tissues derived from ruminants.
| Control Dimensions | 2008 Version Requirements | 2015 Version Enhanced Requirements | Risk Control Levels |
|---|---|---|---|
| Source Animal Qualifications | Basic Health Certificate | Full Feeding Records + Disease Monitoring | High Risk |
| Tissue Collection Environment | General Hygiene Requirements | GMP Grade Clean Environment | Medium and High Risk |
| Pathogen Inactivation Validation | Process Validation | Virus Removal/Inactivation Validation | Extremely High Risk |
| Traceability System | Batch Record Traceability | Full Traceability with Unique Identification | Mandatory Requirement |
Detailed Explanation of Key Technical Requirements
Source Control and Supplier Management
The standard requires the establishment of a qualified supplier audit system and regular assessments of animal farms, slaughterhouses, and tissue collection facilities. In particular, additional control measures are required for raw materials for high-risk products such as heart valves and surgical sutures.
Tissue Collection and Processing Specifications
The collection process must be conducted in a controlled environment to avoid cross-contamination. The standard specifies temperature control, time limits, and preservative treatment requirements to ensure the biological stability of the raw materials.
Viral Safety Control
For animal-borne pathogens, particularly prions, the standard requires the implementation of a risk-based hierarchical control strategy. Raw materials from BSE-risk areas are prohibited or subject to additional handling requirements.
Implementation Recommendations and Compliance Points
Quality Management System Integration
Companies are advised to integrate animal-source control requirements into their existing quality management systems and establish dedicated source control procedure documentation and record-keeping systems.
Supplier Management Optimization
Establish a tiered supplier management system, conduct on-site audits and continuous monitoring of key raw material suppliers, and ensure the effective implementation of source control requirements.
Verification and Validation Requirements
Fully validate the pathogen inactivation process, maintain complete validation data and reports, and ensure traceability and demonstrable treatment effectiveness.
Regulatory Compliance Preparation
Companies are advised to prepare declarations of conformity and technical documentation in advance to address the review requirements of the EU MDR and national regulatory authorities.
Application Case Analysis
Using the production of collagen dressing as an example, companies need to establish a complete traceability chain, starting with the source control of bovine Achilles tendon. This includes animal birthplace certificates, breeding records, slaughter inspection reports, tissue collection and processing records, etc., to ensure that the final product meets viral safety requirements.
After the standard is implemented, medical device manufacturers will need to reassess their existing supply chains, systematically identify and improve potential risk points, and ensure compliance with the strict requirements of the 2015 standard.