10 Common Reasons Medical Devices Fail FDA Review (and How to Avoid Them)

FDA Review

The FDA review process can be one of the most intimidating parts of developing and manufacturing a new medical device. You’ve invested time, money, and momentum into your product. You may even have strong early data or a working prototype. But then you hear stories of devices getting stuck, delayed, or outright rejected during FDA review, and suddenly…

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A Guide to IQ, OQ, PQ in Medical Device Manufacturing

Medical Device Validation

In the medical device field, you must demonstrate, test, and document via a protocol supported by your quality management system (QMS) meeting ISO 13485 requirements. You do so by creating protocols (IQ, OQ, PQ), which are methods to demonstrate that the equipment being installed or used gives you a high degree of assurance that production processes will consistently manufacture products that meet quality…

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5 Ways to Recruit Participants for User Interviews and Testing

User Research

Great innovation and product development start with understanding your users and their needs. One of our top recommended first steps for any company developing new products is to talk to their users. But finding the right people to talk to is often the hardest part—and one of the biggest reasons teams skip research altogether.  At DISHER Engineering, we partner with our customers to…

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The Medical Device Product Development Process: From Concept to Launch

Medical Device Product Development

Launching a medical device is not a simple product release. It is a structured engineering and regulatory process that ensures the device is safe, effective, manufacturable, and compliant with global regulations.  At DISHER Engineering, we guide companies through the full medical device product development roadmap, from early concept work through engineering, validation, regulatory approval, and production launch.…

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Understanding FDA Medical Device Classes I, II, and III

Medical Device

If you are developing a medical device, one of the first regulatory questions you need to answer is: What class is my device?  The FDA classifies medical devices into three categories based on risk to the patient and the level of regulatory control needed to ensure safety and effectiveness. These classifications affect everything from testing requirements to…

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What Is ISO 13485:2016? Requirements, Certification, and Compliance Explained

ISO 13485 Certification

The medical device industry has entered a new regulatory phase as the FDA transitions from the long-standing Quality System Regulation (QSR) to the Quality Management System Regulation (QMSR). This change took place on February 2, 2026, and aligns with U.S. requirements more closely with ISO 13485:2016, the globally recognized standard for medical device quality management systems.   Because of this…

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What the Shift from QSR to QMSR Means for Medical Device Manufacturers

Med Device Manufacturing

Medical device manufacturers operate in one of the most highly regulated industries in the world. Quality systems govern how devices are designed, tested, manufactured, and monitored after release. For decades, companies selling devices in the United States followed the FDA’s Quality System Regulation (QSR), 21 CFR Part 820.   As of February 2, 2026, that regulatory…

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Great Engineers Can Still Fail Without Great Project Management

Engineering Project Manager

Some of the smartest engineering teams still miss deadlines, blow budgets, and struggle to finish the work their stakeholders are counting on. It can be frustrating because the engineering talent is there, but the project results don’t reflect that talent.  From my experience, many of these problems could be avoided, or at least reduced, with strong project management on the team. Below is a little more about what I’ve seen go wrong on projects, and how to get…

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