A lot of the documents are not in the device master record, but are referenced in the dmr as to where the document is located (document control office, engineering library,. It is a repository of all essential information about your company’s medical devices. This document is a device master record index for an in vitro diagnostic product. The device master record contains current device specifications and. The food and drug administration (fda) requires manufacturers of medical devices to create and maintain a device master record (dmr).