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What Does ISO 13485 Require for a Medical Device QMS?

ISO 13485 is the internationally recognized standard for quality management systems (QMS) in the medical device industry. It outlines the requirements for organizations involved in the design, production, installation, and servicing of medical devices, with a primary focus on regulatory compliance and risk management.

Meeting ISO 13485 requirements helps organizations build a consistent, traceable, and compliant approach to quality throughout the product lifecycle. 

Below is a breakdown of what ISO 13485 requires and how it shapes a QMS for medical device companies.

1. Documented Quality Management System

ISO 13485 requires a fully documented QMS that reflects the scope of the company’s operations. This includes:

  • A Quality Manual that outlines how the standard’s requirements are met
  • Documented procedures for key processes
  • A structure of records demonstrating effective implementation
  • A defined quality policy and objectives

The documentation must show how the organization ensures product safety and regulatory compliance from design through post-market activities.

2. Risk Management Integration

Risk management must be embedded throughout the QMS and product lifecycle. ISO 13485 references ISO 14971, the standard for application of risk management to medical devices.

Companies must:

  • Identify hazards associated with the product
  • Estimate and evaluate associated risks
  • Control and monitor residual risks
  • Maintain risk management files throughout development and commercialization

This ensures that risk is considered not just during design, but also during production, distribution, and post-market surveillance.

3. Design and Development Controls

For companies involved in device design, ISO 13485 requires an effective design control process. This includes:

  • Design and development planning
  • Input and output requirements
  • Design review checkpoints
  • Design verification and validation
  • Design transfer to manufacturing
  • Design changes and documentation

All design activities must be documented and traceable. This ensures that devices meet user needs, intended use, and applicable regulatory requirements.

4. Supplier and Outsourced Process Controls

ISO 13485 mandates oversight of any third-party or supplier involved in product realization. Organizations must:

  • Evaluate and select suppliers based on their ability to meet quality requirements
  • Define the type and extent of control based on risk
  • Monitor supplier performance
  • Maintain documented evidence of supplier evaluations and approvals

Supplier quality management is a core requirement, as many device failures and recalls can be traced to external components or services.

5. Production and Process Controls

Manufacturing processes must be validated, monitored, and documented. ISO 13485 requires:

  • Procedures for production and service provision
  • Validation of any process where output cannot be fully verified by inspection (e.g., sterilization, software installation)
  • Control of monitoring and measuring equipment
  • Cleanliness and contamination control where applicable

These controls ensure that products are consistently manufactured to specification and remain safe for their intended use.

6. Control of Nonconforming Product

Organizations must establish procedures to detect and control nonconforming products. This includes:

  • Identification and segregation of nonconforming items
  • Evaluation of the impact and cause
  • Disposition decisions (e.g., rework, scrap, return)
  • Documentation of corrective actions

This requirement helps reduce risk to patients and prevents defective products from reaching the market.

7. Corrective and Preventive Action (CAPA)

ISO 13485 emphasizes a proactive approach to quality by requiring a CAPA process. Organizations must:

  • Investigate the root cause of nonconformities
  • Implement corrective actions to prevent recurrence
  • Identify potential nonconformities and take preventive measures
  • Verify the effectiveness of actions taken
  • Maintain documentation of all steps

An effective CAPA system is critical for reducing repeat issues and improving product and process quality over time.

8. Internal Audits and Management Review

Ongoing oversight of the QMS is required through internal audits and management reviews. Companies must:

  • Plan and conduct regular internal audits to assess QMS performance
  • Identify areas for improvement or corrective action
  • Review audit results, customer feedback, and process data in management reviews
  • Track progress against quality objectives

This ensures accountability and continuous improvement within the organization.

9. Post-Market Surveillance and Complaint Handling

ISO 13485 requires mechanisms for handling customer feedback, including complaints and adverse events. Organizations must:

  • Maintain a process for complaint investigation and resolution
  • Evaluate if the complaint relates to device performance, safety, or labeling
  • Report adverse events to regulatory authorities if required
  • Use complaint data to inform CAPA, design changes, or product recall decisions

Post-market surveillance is essential for maintaining regulatory compliance and protecting patient safety.

10. Training and Competency

Personnel involved in quality-critical processes must be properly trained and qualified. The QMS must include:

  • Defined training requirements for each role
  • Documentation of training completion
  • Evaluation of training effectiveness
  • Procedures to ensure only competent personnel perform tasks that affect product quality

This requirement ensures consistent performance and compliance across all departments.

Final Thoughts

ISO 13485 defines the framework for building a compliant, risk-based, and process-oriented QMS for medical device manufacturers. It spans all aspects of the product lifecycle and requires organizations to proactively manage documentation, design, suppliers, production, audits, and post-market activities.

Dot Compliance delivers a pre-validated, ISO 13485–ready QMS platform designed for medical device companies.

We help teams implement the right controls, streamline documentation, and maintain audit readiness from day one. Let us show you how.