<h1 class="entry-title">Category: Design Control</h1>

Design & Development Includes Regulatory Submissions

April 18, 2023 Design & Development Includes Regulatory Submissions   Premarket regulatory submissions [e.g., U.S. FDA 510(k) / PMA; European Technical Documentation Submissions, Canadian Device Licensing, Australian ARTG registration, etc.] need to be driven by, and documented in association with, the design and development process and documentation.  For example, both the FDA (via the QS […]

Design Plans: Clearly Identify Design Team Members/Contributors

April 11, 2023 Design Plans: Clearly Identify Design Team Members/Contributors   It’s important to be mindful that ISO TC/210 and FDA expect the design team and its members’ roles to be very clearly defined (i.e., in the design plan).  FDA says that, “The importance of defining responsibilities with clarity and without ambiguity should be recognized.”  ISO […]

Biological Evaluation for Reusable Devices: Shelf Life vs. Expected Life

March 22, 2023 Biological Evaluation for Reusable Devices: Shelf Life vs. Expected Life   Biological evaluation for reusable devices may reasonably not be focused on “shelf life”. The heart of this question hinges first on general medical device principles regarding shelf life (or lack thereof) vs. stability over the device’s lifetime.  Much can be said […]

DHF Documentation of Design Changes

March 13, 2023 DHF Documentation of Design Changes   Neither the FDA nor ISO 13485 mandate a required format for the Design History File (DHF).  Accordingly, we have latitude to decide what structure, format, and organizational approach we use to meet the basic regulatory requirements and objectives for the DHF.  Accordingly, if your system does […]

Regulatory is Part of the Design and Design Team: Part 1

March 2, 2023 Regulatory is Part of the Design and Design Team: Part 1   ISO 13485 demands that regulatory requirements be included in the required design inputs and outputs along with the corresponding verification (and maybe also validation depending on how a client approaches it). Consequently, the person who authored those regulatory design inputs, […]

Risks from an Inadequate Development Process for Software

July 19, 2021 Risks from an Inadequate Development Process for Software The most fundamental reason for medical device design and development controls (e.g., ISO 13485 clause 7.3; the U.S. FDA’s 21 CFR 820.30, etc.) is to control risks that come from an inadequate development process.  That fact is unequivocally true and stands in stark contrast to […]

Showing Conformity to Standards

July 16, 2021 Showing Conformity to Standards   Regardless of the source of a request for evidence showing conformity with applicable standards, a pivotal underlying fundamental remains the same and drives the answer:  Conformance with standards is generally a design/development verification and/or validation activity.  Therefore, the general rule of thumb is that there needs to […]

FDA & ISO DMR/MDF vs. “Design Output”

April 1, 2019 FDA & ISO DMR/MDF vs. “Design Output” Remember that the DMR is intrinsically linked to the design control process.  The DMR is by formal definition a design output (see my preceding blog post).  It unequivocally lives and breathes in direct relationship to the design control process.  A properly-maintained DMR never becomes decoupled […]