Arteriocyte is now a part of Isto Biologics.




Senior Management

ISTO’s forward-looking operations run under the elite direction of a group of passionate, committed managers who are at the top of their fields.

George Dunbar

President and Chief Executive Officer


George Dunbar joined ISTO in 2013 as an independent director before becoming President and Chief Executive Officer in January 2014. Prior to joining ISTO, he served as a venture partner […]

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Phillip Kuhn

Chief Commercial Officer


Phillip Kuhn joined ISTO in April 2014 with more than 30 years of medical device and biologics marketing and sales experience, having successfully launched new products and businesses in a […]

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Dr. Davis Adkisson

Chief Scientific Officer


H. Davis Adkisson joined ISTO in February 2000. He holds ten issued U.S. and foreign patents on which the company’s cartilage platform technology is based. Prior to joining ISTO, Adkisson […]

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Michaela Purcell, MSN

Senior Director Clinical Operations


Michaela Purcell joined ISTO in 2007. She has more than 25 years of experience in leading the strategic planning and clinical execution of multiple research programs involving orthopedic and gastrointestinal […]

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Mary Vonesh

Chief Financial Officer


Mary Vonesh joined ISTO in March 2003.  She brought experience in academia as an Assistant Professor at Aurora University / Cedar Crest college, in industry at Bethlehem Steel, Container Corporation […]

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A Cause We Believe In

“Everyone’s willingness to work together for a cause that we all believe in makes ISTO a special place to work.”

—Samantha Kaltenbach, Quality Assurance Specialist

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