The Design History File (DHF), the Device Master Record (DMR), and the Device History Record (DHR)
The Current Challenge Facing Medical Device Manufacturers
Navigating the current landscape of medical device Quality Management Systems (QMS) is challenging due to the continuous influx of new standards and regulations, such as the European Medical Device Regulation (EUMDR), ISO 13485, ISO 14971, and both vertical and horizontal standards. The primary obstacle lies in effectively integrating these diverse frameworks into a cohesive and practical system rather than merely compiling their individual requirements. Achieving this integration necessitates a strategic approach that ensures alignment with organizational goals while maintaining compliance with regulatory mandates. The challenge lies not only in understanding the nuances of each standard but also in harmonizing them to establish a robust and adaptable QMS capable of fostering innovation, ensuring patient safety, and sustaining market competitiveness.
Documents and Records in Design and Development Activities
Throughout its lifecycle, compilations of documents and records illustrate the design and development activities of a medical device. The first compilation, the Design History File (DHF), includes or refers to all documents related to the design history: design inputs, design outputs, design verification, design validation, design changes, and risk management activities associated with the device. It serves as a comprehensive archive that provides evidence of compliance with regulatory requirements and ensures traceability of design decisions and changes.
The second, the Device Master Record (DMR), defines the specifications and manufacturing processes for a medical device. It includes information such as device specifications, manufacturing procedures, quality control procedures, packaging and labeling specifications, and any other documentation necessary to produce the device. This serves as a reference document for ensuring consistency, reliability, and compliance throughout the manufacturing process and facilitates the production of devices that meet regulatory requirements and customer expectations.
The third, the Device History Record (DHR), via documents and records, provides objective evidence of the production and control activities for each batch or lot of medical devices. It includes information such as production records, inspection and test results, device labeling and packaging records, and any other documentation related to the manufacturing and quality assurance processes. It serves as a historical record that demonstrates compliance with regulatory requirements and ensures traceability of devices from production through distribution to the end user.
It is important to step back and visualize what these three records represent and how they are related to each other. The Design History File (DHF), Device Master Record (DMR), and Device History Record (DHR) are interrelated documents crucial to the lifecycle of a medical device. The DHF primarily captures the design and development history, focusing on past activities. The DMR serves as a comprehensive record of the device’s specifications and manufacturing processes, representing the present state. Finally, the DHR documents the production and quality assurance activities during the device’s manufacture, reflecting the future use. While each document has its own unique focus, collectively they contain overlapping information, ensuring consistency and traceability across the device’s lifecycle, from design inception to market distribution and beyond.
