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Home » Capstan Medical completes first robot-assisted transcatheter mitral valve replacements

Capstan Medical completes first robot-assisted transcatheter mitral valve replacements

March 6, 2025 By Jim Hammerand

A photo of a heart valve implant developed by structural heart surgical robotics startup Capstan Medical.
Capstan Medical says a surgeon has conducted the first successful catheter-delivered mitral valve replacement using the company’s nitinol-enabled implant and robotics platform. [Photo courtesy of Capstan Medical]
Capstan Medical today announced the first successful transcatheter mitral valve replacements using its novel implant and surgical robotics system.

Santa Cruz, California–based Capstan Medical said it’s the first time a minimally invasive robotic structural heart platform has been used in clinical practice.

“Today marks a pivotal moment in the evolution of structural heart therapy,” Capstan Medical CEO Maggie Nixon said in a statement shared with MassDevice ahead of the announcement. “Seeing the capabilities of our system, catheter, and implant come together to deliver groundbreaking human cases validates years of research, development, and unwavering commitment from our team. This achievement demonstrates the potential of our technology to reshape the future of structural heart procedures.”

Nixon had more to add in an interview with MassDevice.

“The team did an impeccable job preparing for these cases, and the patients are doing great, which is what it’s all about,” she said.

A photo of Capstan Medical CEO Maggie Nixon.
Capstan Medical CEO Maggie Nixon [Photo courtesy of Capstan Medical]
DeviceTalks Boston: Join Capstan Medical CEO Maggie Nixon and other medtech leaders at our 2025 show

Capstan Medical’s mitral valves were implanted in two patients at Hospital Clínico Universidad Católica in Santiago, Chile, by Dr. Gonzalo Martinez, director of the Endovascular Therapy Center at Pontifical Catholic University of Chile.

“We are honored to pioneer this innovation that has the potential to transform how we treat heart valve disease, especially for patients who aren’t candidates for conventional surgery,” Martinez said in a statement shared with MassDevice. “The Capstan technology exceeded our expectations even in these early cases.”

Free download: Learn more about Capstan Medical and other surgical robotics developers in our new Surgical Robotics Special Report.

The cases were supported by Dr. Santiago Garcia, director of the Structural Heart Program at The Christ Hospital in Cincinnati, Ohio. Garcia said the first-in-human cases “represent a significant leap forward in structural heart intervention.”

“I’ve worked with numerous technologies, but this fundamentally changes what’s possible in the treatment of valvular heart disease,” he said in a statement. “The robotic platform provided unprecedented catheter stability and control, achieving optimal implant positioning. Both patients had elimination of their mitral regurgitation, with unobstructed left ventricular outflow tracts, and are feeling much better than how they arrived. This is the enabling technology the structural heart field has been waiting for.”

Nixon said the latest milestone means Capstan Medical is still on track with clinical and development work to start a pivotal trial next year, with submission to the FDA for regulatory approval as soon as 2028.

“We’re moving very carefully and methodically, but we’re likely to treat about eight to 10 patients in this case series in multiple locations,” Nixon said. “We’ll probably be in about three to four different sites, and we’re screening patients for that right now.”

Medical Design & Outsourcing: Capstan Medical CEO Maggie Nixon’s advice on nitinol and getting funded by Intuitive Ventures

Capstan will present more information and early clinical imaging at the Cardiovascular Research Technologies meeting in Washington, D.C. this weekend, she said.

The startup raised $110 million in its Series C round last year. Shortly after, Capstan hired an ex-Intuitive engineer to lead R&D and offered an update on its technology, including its efforts to develop a tricuspid valve implant.

Go to Medical Design & Outsourcing for more from our interview with Nixon about this first-in-human milestone, the latest on Capstan Medical’s regulatory strategy, and an update on the company’s tricuspid technology.

MDO webinar: Surgical robotics R&D with Capstan Medical’s Greg Dachs

Filed Under: Cardiac Implants, Cardiovascular, Catheters, Featured, Implants, News Well, Replacement Heart Valves, Robotic-Assisted, Structural Heart, Structural Heart, Surgical, Surgical Robotics Tagged With: Capstan Medical, mitral regurgitation, nitinol, Structural heart, surgical robotic platforms, surgical robotics, surgical robotics platforms, surgical robots, transcatheter mitral valve replacement

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About Jim Hammerand

Jim Hammerand is the managing editor of Arrowfly's MassDevice and Medical Design & Outsourcing, where he leads coverage of medtech innovation, design, engineering and manufacturing. He also contributes to our Devicetalks podcasts and live events. Hammerand has more than two decades of journalism experience spanning newspapers, magazines, websites, live events, radio and TV news. For nearly a decade, Hammerand reported and edited business news for American City Business Journals as a reporter and digital editor at the Minneapolis/St. Paul Business Journal and then as managing editor of the Puget Sound Business Journal in Seattle. He holds degrees in journalism and management from the University of Minnesota and has won journalism awards from the Society of Professional Journalists, American Society of Business Publication Editors, and Trade, Association, Business Publications International. Connect with him on LinkedIn or by email at [email protected].

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