Artificial intelligence has officially entered the mainstream cultural zeitgeist, creating a wave of excitement—and a fair share of fatigue—across the medical device industry. In this episode, host Etienne Nichols sits down with Tyler Harmon, biomedical engineer and CEO of Iaso Automated Medical Systems, to cut through the marketing buzzwords. Together, they explore the technical realities behind the technology stack, shifting the conversation away from generic AI toward specific, actionable engineering frameworks.
The discussion highlights a critical distinction between traditional machine learning models and consumer-oriented Large Language Models (LLMs). Harmon explains that while technologies like convolutional neural networks (CNNs) have successfully processed medical imaging for years, modern LLMs introduce an intentional element of randomness to mimic human conversation. This lack of predictability presents unique challenges for medical device developers who operate in a deterministic, safety-critical environment where reproducibility is paramount.
Looking toward practical deployment, the episode addresses how companies can responsibly govern these tools both within their software architectures and their internal Quality Management Systems (QMS). From classifying external AI models as Software of Unknown Provenance (SOUP) under IEC 62304 to leveraging machine learning for early detection of Acute Respiratory Distress Syndrome (ARDS) in the ICU, this conversation serves as an essential guide for innovators looking to build the next generation of safe, compliant, and effective medical technologies.
"If we as innovators can't explain things to a more general audience, we generally don't understand them ourselves. And if you can't do that, it's probably not the best idea to be implementing it into your products." - Tyler Harmon
"I am probably going to be the biggest advocate you'll ever talk to about 'doctors need enablement, not replacement.' We need to give them the tools, the force multipliers to tackle the challenges they're going to face this century." - Tyler Harmon
Think of a traditional medical device software algorithm like a standard thermometer tracking a fever. It follows a straight, predictable line: if the temperature input increases by one degree, the reading on the screen changes by exactly one degree. This is a linear system.
Modern AI, like Large Language Models (LLMs), works more like a seasoned doctor trying to diagnose a complex case by listening to a patient's story. The human brain doesn't just look at variables in a straight line; it connects random pieces of past experiences, reads between the lines, and notes subtle shifts in tone. To replicate this mathematically, software engineers introduce non-linearity.
Instead of a straight line, the math behaves like a web of thousands of intersecting pathways. To make the system feel even more human, creators add a controlled "randomness layer" (similar to a digital coin flipper) so the software doesn't always choose the most obvious, predictable word next. While this makes chatting with a computer feel incredibly natural, it presents an engineering challenge for medical device developers who require identical, reproducible results every single time.
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This episode is brought to you by Greenlight Guru, the only dedicated medical device success platform. When building cutting-edge technologies like software as a medical device or machine learning platforms, having an isolated, fragmented tech stack can slow your path to market.
Greenlight Guru seamlessly connects your engineering and quality operations by offering both a comprehensive Quality Management System (QMS) to manage your compliance governance, SOPs, and design controls, alongside robust Electronic Data Capture (EDC) solutions for optimizing your clinical data collection. By integrating your quality workflows with actual clinical data capture, Greenlight Guru helps you scale safely from research and development straight through to successful commercialization.