3 Signs Your Medtech Idea Could be a Viable Business: Interview with Prana Surgical CEO Joanna Nathan

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Recorded06 Aug 2025

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In this episode of Medsider Radio, we sat down with Joanna Nathan, CEO and co-founder of Prana Surgical — a startup developing image-guided surgical platforms for precision oncology. Joanna's career spans translational research at Texas Heart Institute, product development at Saranas, and portfolio management at Mercury Fund and Johnson & Johnson's Center for Device Innovation. She mentors founders through her not-for-profit organization Enventure and teaches entrepreneurship at Rice University's Jones School of Business.In this interview, Joanna shares her framework for evaluating which medtech ideas merit pursuit, revealing three critical signals every founder should look for: clinical urgency that requires no convincing, favorable asymmetry between value and technical risk, and optimal market timing. Joanna also demonstrates how systematic grant applications and strategic resource allocation can extend runway while building investor credibility, and addresses the unique psychological challenges of building life-critical devices.Before we dive into the discussion, I wanted to mention a few things:First, if you’re into learning from medical device and health technology founders and CEOs, and want to know when new interviews are live, head over to Medsider.com and sign up for our free newsletter.Second, if you want to peek behind the curtain of the world's most successful startups, you should consider a Medsider premium membership. You’ll learn the strategies and tactics that founders and CEOs use to build and grow companies like Silk Road Medical, AliveCor, Shockwave Medical, and hundreds more!We recently introduced some fantastic additions exclusively for Medsider premium members, including playbooks, which are curated collections of our top Medsider interviews on key topics like capital fundraising and risk mitigation, and 3 packages that will help you make use of our database of 750+ life science investors more efficiently for your fundraise and help you discover your next medical device or health technology investor!In addition to the entire back catalog of Medsider interviews over the past decade, premium members also get a copy of every volume of Medsider Mentors at no additional cost, including the latest Medsider Mentors Volume VII. If you’re interested, go to medsider.com/subscribe to learn more.Lastly, if you'd rather read than listen, here's a link to the full interview with Joanna Nathan.

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