According to the International Organization for Standardization, ISO 13485 is the global standard for quality management systems (QMS) in the medical device industry. It sets requirements for a QMS that helps ensure medical devices and related services consistently meet customer needs and regulatory requirements. One of the key components of maintaining compliance with ISO 13485 is understanding the ISO 13485 audit process.
In this article, we will explain the types of ISO 13485 audits, the process involved, and how to prepare effectively to ensure your organization remains compliant with the standard.
What Is an ISO 13485 Audit?
An ISO 13485 audit is a formal and systematic examination to determine whether an organization’s QMS meets the requirements of the ISO 13485:2016 standard. Audits are essential, as stated in the ISO 13485 documentation, for assessing the effectiveness of a company’s quality management system and verifying its compliance with relevant regulatory requirements.
Audits can be conducted internally by an organization or externally by third-party auditors or certification bodies. Both types of audits are designed to ensure that all aspects of the QMS function properly, and that corrective actions are taken when necessary.
Types of ISO 13485 Audits
ISO 13485 audits can be divided into several types based on their purpose and the entities involved:
Internal Audits
- Internal audits are conducted by an organization to assess its own QMS against the ISO 13485 standard. These audits are a crucial part of the organization’s ongoing effort to improve its QMS and ensure continuous compliance. They are required under Clause 8.2.4 of ISO 13485:2016.
Supplier Audits
- Supplier audits are risk-based evaluations of external suppliers, conducted to ensure they meet the standards required under Clause 7.4.1 of ISO 13485. These audits help verify that suppliers meet the necessary quality and regulatory requirements, especially when their products or services directly affect the safety and performance of medical devices.
Certification Audits
- Certification audits are external audits conducted by accredited certification bodies (such as BSI, TÜV SÜD, etc.). The goal is to verify that the organization’s QMS is fully compliant with the ISO 13485:2016 standard and suitable for regulatory compliance. These audits take place when an organization first applies for certification, during surveillance audits, or as part of re-certification processes.
The ISO 13485 Audit Process
The process for an ISO 13485 audit generally involves several phases, each essential for evaluating the effectiveness of the quality management system. Below is an overview of the audit process:
Audit Planning and Scheduling
Audit planning is the first and crucial step of the process. The scope, criteria, and frequency of the audit must be defined based on factors such as process criticality, historical non-conformities, and regulatory requirements. As recommended by best practices in ISO 13485 auditing, the audit plan should ensure that all applicable ISO 13485 clauses are covered.
Audit Team Preparation
The audit team should be composed of qualified and independent auditors. These auditors must be well-trained and familiar with the ISO 13485 standard and internal QMS processes. The team must also prepare by reviewing past audit results, creating checklists, and gathering relevant documentation.
Opening Meeting
The opening meeting is a formal event where the audit team and relevant process owners meet to outline the audit’s scope, objectives, and logistics. The audit team will also confirm access to necessary records and systems and review the audit schedule.
Conducting the Audit
During the audit, auditors will examine the organization’s QMS for compliance with ISO 13485. This involves reviewing documentation, observing processes, and conducting interviews with staff. Auditors will focus on key processes like CAPA (Corrective and Preventive Action), training, risk management, and document control.
Documenting Audit Findings
Findings from the audit are categorized into non-conformities, observations, or opportunities for improvement. The audit team will record these findings in a report, noting the relevant clauses from ISO 13485 and providing objective evidence.
Closing Meeting
At the closing meeting, the audit team will present their findings to management, including any non-conformities identified and their severity. The team will also assign responsibilities for corrective actions and set timelines for their resolution.
Audit Report Issuance
Once the audit is complete, an audit report is issued. This report includes a summary of the audit process, findings, and the organization’s overall compliance with ISO 13485:2016.
Corrective Actions and Follow-Up
If non-conformities are identified during the audit, corrective actions (CAPAs) must be implemented. According to ISO 13485 guidelines on corrective actions, these actions are documented, and the organization must verify that the corrective measures were effective before closing the non-conformities.
Management Review
Finally, audit results are reviewed during management review meetings to assess the overall effectiveness of the QMS. The management team will evaluate trends, assign actions, and ensure continuous improvement.
How to Prepare for an ISO 13485 Audit
Preparation is key to ensuring a smooth audit process. Here are some steps you can take to prepare for an ISO 13485 audit:
- Understand the Audit Scope and Requirements
Clearly define the scope of the audit and the ISO 13485 clauses that will be assessed. This will help ensure that your QMS is aligned with the audit requirements.
- Review Documentation
Ensure that all your QMS documentation is up-to-date, approved, and version-controlled. This includes SOPs, work instructions, and other relevant forms.
- Train Your Staff
Ensure that your staff members are trained on the audit process and know how to respond to auditors’ questions. Provide training on specific areas that may be scrutinized during the audit. - Conduct a Mock Audit
Perform an internal audit or gap assessment using a clause-referenced checklist to identify potential areas of improvement before the actual audit. - Verify Compliance with Key Processes
Review critical processes like CAPA, change control, and risk management to ensure they are functioning effectively and compliant with ISO 13485 requirements. - Organize Audit Evidence
Prepare all necessary evidence, such as training records, DHRs, and CAPA files, to ensure they are easily accessible during the audit.
Conclusion
The ISO 13485 audit process is a vital aspect of maintaining compliance with the standard and ensuring that your quality management system remains effective. By understanding the different types of audits, the process involved, and how to prepare, your organization can improve its chances of passing the audit with fewer non-conformities and drive continuous improvement in product quality.
According to industry best practices and auditor recommendations, effective preparation, systematic auditing, and thorough follow-up are essential for ensuring compliance and achieving successful outcomes in ISO 13485 audits.