Fewer than 1% of the patients who could benefit from targeted temperature management actually receive this potentially life saving intervention. We’re changing that.

Attune Medical is committed to advancing temperature management therapy in all clinical contexts, and we’re focused on three crucial pillars: clinical needs, the state of science, and most importantly, patient safety.

Our ensoETM gives healthcare providers easy access to a patient’s core and allows precise temperature control, whether warming or cooling, through the esophagus when clinically indicated. It’s the only approved device on the market that uses the esophageal environment for full-body temperature control.

We’re attuned to the people that need us.

Leadership Team


Keith Warner

CEO / Board Member

Keith Warner is a seasoned executive in the life science and diagnostic industry with over three decades of experience building high value companies.  Most recently as a consultant to life science investment firms, Keith has been instrumental in assessing new technologies and building early stage companies toward successful M&A transactions.  Keith served in leadership roles at organizations including Wafergen BioSystems, Novartis/Chiron and Biodesix.  Keith also held numerous positions of increasing responsibility in manufacturing, sales and marketing and management at Abbott Diagnostics.  Keith was educated at Kansas State University and Pepperdine University.


Erik Kulstad, MD, MS

Co-founder & CMO / Board Member

Erik Kulstad invented ensoETM and is a practicing emergency medicine physician. His first-hand experience with temperature management technologies inspired him to apply his background in chemical engineering to the design of the EnsoETM, the first device to leverage the esophageal space for core warming and cooling and to found Advanced Cooling Therapy (now Attune Medical) in 2009. Erik was previously the Research Director at Advocate Christ Medical Center and currently serves as a physician in the Parkland Hospital Emergency Department and Clinical Associate Professor at the University of Texas Southwestern Medical Center. Dr. Kulstad has published over 60 peer-reviewed manuscripts, presents his research at numerous national and international meetings, and serves as peer reviewer for 12 medical journals. He was educated at the University of Maryland, the University of Houston, and the University of Texas Southwestern Medical Center.


Maria Gray, RN, MA

Vice President for Clinical and Field Operations

Maria Gray found her dream job with Attune Medical in 2015. Maria combines her extensive experience in nursing practice and education to create effective and efficient training programs for clinical users. Maria’s vast knowledge of patient temperature management was fostered during her 7 years in education and management at Medivance Inc., where she directed the Clinical Education division and assisted during Bard Medical’s acquisition. Prior to her 12 years of clinical and management experience in the medical device industry, she practiced nursing in prestigious teaching hospitals across New York City, including Columbia Presbyterian, Sloan Kettering, Lenox Hill and New York Methodist. Maria’s corporate experience includes Hill-Rom, Clear Catheter Systems, BHR Pharma, Johnson & Johnson, and NeurOptics. Maria was educated at Georgetown University and New York University.


Patrick Shanley, MS

Senior Director of Operations

Patrick Shanley joined Attune Medical in 2012 as our first full-time employee. Attracted to the fast-paced, cross-disciplinary work environment provided by a startup, Patrick Shanley serves as an engineer and quality/regulatory strategist. In this role, Patrick established and maintained an ISO 13485 and FDA 21 CFR Part 820 compliant quality system and has guided the ensoETM to regulatory clearance in the United States, Europe, Canada, and Australia. Mr. Shanley is now spearheading the research and development of Attune Medical’s next generation ensoETM disposables as well as a proprietary hardware device. Previously, Patrick worked in research and development for Reprise Medical Technology, an early stage medical device start-up. Patrick was educated at the University of Illinois, Urbana/Champaign and Northwestern University.


Board of Directors


Igal Ladabaum, PhD

Executive Chair

Igal Ladabaum is a medical device entrepreneur and executive. Igal is the founding CEO of Hospi Corporation and serves Chairman of the Board of Attune Medical.  He previously served as the General Manager of Sonova’s InSound Center of Competence, an innovations center for hearing aid technology.  Igal led the engineering and clinical research team that brought the Lyric hearing aid to market, the world’s first totally invisible, extended wear, deep-in-the-canal hearing aid. Lyric’s success resulted in the acquisition of InSound Medical by Sonova in 2010 with total transaction proceeds of $200M.  Igal has been an active angel investor and previously served on the boards of Radlogics and Ornim. Igal was also the co-founding CEO and CTO of Sensant Corporation, a company that introduced the first fundamental change in ultrasonic transduction in decades. Fueled by venture investors and support of government agencies including DARPA, the NSF, and the Navy’s ONR, Sensant was sold to Siemens in 2005, after which Igal led Siemens Ultrasound Engineering for 2 years and was a member of the Ultrasound division’s leadership circle. Igal was educated at U.C. Berkeley, Ecole Polytechnique, and Stanford.


Mark Ritz, MS, MBA

Mark Ritz a is seasoned executive and expert in business and strategic planning. Mark is an active participant in Michigan’s entrepreneurial community as an Angel investor, a member of the Michigan Angel Fund’s Screening Committee and a consultant to Ann Arbor Spark’s entrepreneurial services team.  Previously, he concluded his 35-year automotive career as Vice President, Corporate Development for Lear Corporation, with responsibility for evaluating and executing corporate transactions. In that capacity, he served as a Director of 12 joint ventures, of which 9 were corporate start-ups. Mark was educated at the Harvard Business School, University of Michigan-Dearborn, and Purdue University.


Cliff Turner, MS

Cliff Turner brings extensive experience in sales and business development management in the life science market. Cliff is the General Manager of DNArP Consulting, which focuses on assisting life science startup companies in sales, business development, and market analysis. His consulting practice is based on 30 years of increasing responsibility in sales and business development management with; J&J-Ortho Diagnostic Systems, Coulter Cytometry, Genzyme, Life Technologies-Invitrogen, and Affymetrix.  Cliff is also a mentor with the Chicago Innovation Mentors and an active angel investor and has invested in several Midwest start-ups as well as serving on their Boards.  Cliff was educated at Northern Illinois University and the University of Illinois at Urbana-Champaign.