Atraverse - FloodGate Medical

Next Generation Left-Heart Access

About Us

Atraverse Medical is a San Diego-based medical device company formed in July 2022 by the same founding team as FARAPULSE (acquired in June 2021). Co-Founders Dr. Steven Mickelsen, Eric Sauter, and John Slump have reunited to pioneer next generation transseptal access devices for use in minimally invasive cardiac procedures requiring access to the left chamber of the heart. The company’s innovative HOTWIRE™ system, featuring universal sheath compatibility and optimized RF biophysics, aims to enhance outcomes and streamline workflows for physicians treating cardiovascular disease in millions of patients worldwide.

Look at the Leaders of Atraverse

John Slump

CEO/President & Co-Founder

Dr. Steven Mickelsen

CTSO & Co-Founder

Eric Sauter

COO & Co-Founder

Featured Services and Innovations

Hotwire

Revolutionize your transseptal access workflow with the HOTWIRE™ RF Guidewire — a best-in-class solution engineered for precision, control, and compatibility. Designed for universal sheath use and optimized for echocardiographic visualization, HOTWIRE™ delivers enhanced stiffness and performance across multiple sheath models to streamline procedures and improve outcomes for electrophysiology and structural heart interventions. Join the future of minimally invasive cardiac access.

Company Spotlight Video

News and Stories

Atraverse Medical Secures FDA 510(k) Clearance for HOTWIRE™ RF Generator & Fully Integrated Transseptal Access System

SAN DIEGO, Dec. 4, 2025 /PRNewswire/ — Atraverse Medical, a medical device company pioneering next-generation left-heart access technology, has received 510(k) clearance from the U.S. FDA for its fully integrated HOTWIRE™ Transseptal Access System.

Atraverse Medical Closes $29 Million Financing to Accelerate Commercialization of its Innovative HOTWIRE™ Transseptal Access Technology

SAN DIEGO, June 10, 2025 /PRNewswire/ — Atraverse Medical, a medical device company pioneering next-generation transseptal access technology, today announced the close of a $29.4 million follow-on financing to accelerate growth. The raise builds upon $12.5 million in prior seed investment that was used to obtain FDA 510(k) clearance and begin early commercialization of HOTWIRE™, the company’s novel radiofrequency (RF) guidewire for left-heart access. The company has now raised over $40 million of investment capital.

Clinical Data on Atraverse Medical's HOTWIRE™ Transseptal Access System to be presented at Heart Rhythm Society meeting April 24-27

SAN DIEGO, April 23, 2025 /PRNewswire/ — Atraverse Medical, a San Diego-based medical device company pioneering universally-compatible transseptal access technology, announced today that the latest clinical evidence on the efficacy and safety of its HOTWIRE™ left heart access system will be presented at the Heart Rhythm Society (HRS) annual meeting April 24-27. HOTWIRE™ was developed to enhance procedural efficiency and streamline workflows with a therapy agnostic innovation in left-heart access.

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