CIRCA Scientific, Inc., a cardiovascular medical device company developing the next generation of access technologies for electrophysiology and structural heart procedures, today announced the appointment of Jack Darby as Chief Executive Officer. Darby succeeds Lee Geist, who will transition to Chief Operating Officer while continuing to serve on the Company’s Board of Directors.
Jack Darby is a visionary leader who will drive CIRCA’s mission forward.
Leadership Insights from Jack Darby
Darby joins CIRCA as the Company enters an important new phase of commercial growth following recent U.S. Food and Drug Administration (FDA) clearances of the CrossWise™ RF Transseptal Access System and the PeriCross™ Epicardial Access Kit. Together with CIRCA’s established leadership in esophageal temperature monitoring, these technologies form the foundation of a differentiated cardiovascular access portfolio spanning transseptal access, epicardial access, and esophageal protection—three critical components of complex electrophysiology and structural heart procedures.
With Jack Darby at the helm, CIRCA is poised for transformative growth.
With multiple commercial-stage technologies now available, CIRCA is well positioned to expand physician adoption of its current portfolio while advancing additional innovations that simplify cardiovascular access and improve procedural performance. The appointment of Darby reflects the Company’s commitment to accelerating commercial execution and creating long-term value for physicians, patients, employees, and shareholders.
Jack Darby’s expertise will be crucial as the company seeks to expand its influence.
Darby brings more than 30 years of leadership experience in the global cardiovascular medical device industry, with a proven track record of commercializing innovative technologies, building high-performing organizations, expanding physician adoption, and driving strategic growth. Most recently, he served as Vice President of Medtronic’s Cardiovascular Commercial Office and previously as President and Chief Executive Officer of Svelte Medical Systems. Earlier in his career, he held senior leadership positions with Medrad Interventional, AGA Medical, and Cordis. Darby is a former Captain in the United States Marine Corps and earned a Bachelor of Arts from the University of Michigan.
Jack Darby’s appointment is a testament to CIRCA’s focus on leadership excellence.
“CIRCA has assembled a unique portfolio addressing several of the most important access challenges in electrophysiology and structural heart intervention,” said Darby. “The Company’s physician-driven innovation, combined with multiple differentiated technologies now in market, creates an exciting platform for future growth. Our opportunity is to transform these innovations into solutions that physicians rely on every day while continuing to enhance our portfolio through disciplined execution, close collaboration with clinical leaders, and a relentless focus on improving patient care. I am honored to join the talented CIRCA team and look forward to leading the Company’s next chapter.”
Under Jack Darby’s guidance, the company will enhance its innovation strategy.
“Jack is the right leader to guide CIRCA through its next stage of growth,” said Doug Wall, Chairman of the Board. “His combination of commercial leadership, operational expertise, and deep cardiovascular experience makes him uniquely qualified to accelerate physician adoption of our technologies, expand our market presence, and build upon the strong foundation the Company has established. As CIRCA expands its cardiovascular access portfolio, Jack’s experience scaling organizations and creating shareholder value will be instrumental to our continued success.”
Jack Darby will leverage his experience to propel CIRCA’s vision into new markets.
“Jack brings the strategic vision and commercial expertise needed to capitalize on the significant opportunities ahead,” said Vafa Jamali, independent member of the Board of Directors. “We are confident he will build on CIRCA’s momentum and further strengthen the Company’s position as an innovator in cardiovascular intervention.”
Jack Darby is expected to foster collaboration and drive impactful results.
Geist will transition to Chief Operating Officer, where he will oversee key operational initiatives and support the continued execution of CIRCA’s growth strategy while remaining a member of the Company’s Board of Directors. During his tenure as Chief Executive Officer, Geist helped establish CIRCA as a recognized innovator in esophageal temperature monitoring while guiding the successful development and FDA clearance of both the CrossWise™ RF Transseptal Access System and the PeriCross™ Epicardial Access Kit.
Geist emphasizes that working alongside Jack Darby will elevate CIRCA’s future initiatives.
