Team

Corporate Management

Darren Obrigkeit, PhD

Darren Obrigkeit, PhD

Chief Executive Officer

Dr. Obrigkeit is a serial entrepreneur and medical device leader. He has over 25 years’ experience in medical devices and biomaterials, including founding Angstrom Medica (now RTI Surgical – NASDAQ: RTIX), corporate venture investment management at DSM Biomedical, and growing and managing a large portfolio of medical contract design, manufacturing, and services at Flextronics Medical. He earned his Chemical Engineering PhD from MIT in numerical modeling of complex aerosol and particulate processes.

David Kay, MD

David Kay, MD

Founder & Chief Medical Officer

With more than 40 years of medical experience, Dr. Kay is a foot and ankle orthopedic surgeon and an industry KOL. As an inventor and entrepreneur, he partners with individuals who are looking to commercialize their product concepts or established companies that need a new direction in product development. Dr. Kay founded Orthohelix in 1995 to develop innovative implants and instruments for use in small bone reconstructive foot and ankle surgery with an exit of $135M in 2012 to Tornier. His work in innovative foot and ankle implants is widely published and he has participated in over 20 medical device product launches. Dr. Kay is a founder of Resivant and brings a wealth of entrepreneurial and operational expertise in addition to a deep network of colleague KOLs.

Paul Wyman, PhD

Paul Wyman, PhD

Senior Director of Engineering and Formulation

Dr. Wyman has a 20 year history in material science and process innovation for medical coatings, with extensive expertise in development, scale up, and commercial supply/supply chain management for high value chemistry-driven coatings and materials. He was head of a chemistry section at the DSM Corporation’s central research facility and earned his PhD in chemistry from the University of Sheffield. Dr. Wyman has IP in most, if not all, the fields he has worked in, and is a Chartered Chemist (Cchem, MRSC).

Tom Stephens

Tom Stephens

Senior Director of Regulatory & Quality

Tom Stephens is the Senior Director, Regulatory & Quality.  Tom has extensive experience with topical skin adhesive products, having helped secure regulatory approval for the first skin adhesive device to be marketed in the US, DERMABOND® Topical Skin Adhesive, along with a series of similar products for Ethicon®, a Johnson & Johnson Company.  Since leaving Ethicon, Tom has successfully directed the development and regulatory clearance efforts for several medical device start-up companies.  

Rich Mazzola

Rich Mazzola

Chief Finance Officer

Rich has more than a decade of experience working with early-stage start-up companies as a seasoned consultant and CFO. Throughout his career, he has collaborated with more than 30 start-ups in the tech and medtech sectors, giving him an invaluable understanding of what it takes to lead a thriving medtech startup. Notably, Rich is a co-founder of Project Medtech, a medtech innovation eco-system initiative (www.projectmedtech.com), where he spearheads their finance consulting division. As CFO of Resivant Medical, he plays a pivotal role in equipping the team with comprehensive financial and business strategies, ensuring their success in a competitive landscape.

Stuart Rogers

Stuart Rogers

VP Sales & Marketing

Stuart is a healthcare leader with more than 30 years of successful medical device sales and marketing experience. He has worked with small startup organizations and large corporations and within multiple specialties including orthopedics, neurosurgery, spinal and craniomaxillofacial surgery. Most recently he was the VP of sales and marketing at HyperBranch Medical Technology from pre-commercialization of the Adherus Dural Sealant products to the successful acquisition by Stryker Corp. He went on to join Stryker, assuming the role of director of global sales, managing further growth globally. Stuart has managed many successful product launches, built both direct and indirect sales channels and has worked with many KOLs internationally.

Board of Directors

Russ Donda

Russ Donda

Chairman of the Board

Russ Donda has more than 25 years of executive and startup entrepreneurial experience. He serves on multiple startup boards, is an inventor on a number of patents, and among other startup projects, he was the founding CEO and chairman for ViewRay, a university spinout that developed a novel form of radiation therapy. The company was subsequently venture funded and publicly traded on Nasdaq. Mr. Donda was a founding member of, and co-chair of investment review for, the Emergent Growth Fund, LLC (www.emergentgrowth.com), an angel investment fund; he was also a cofounder of, and spearheaded business development for, Regeneration Technologies, a university spinout now publicly traded (Nasdaq: RTIX).

Cherie Friedman

Cherie Friedman

Board Member

Ms. Friedman founded Friedman Search Group in 1998 following twelve years’ experience in sales and sales management with Procter & Gamble, Johnson & Johnson Codman, and Synthes USA. She regularly consults with sales organizations who utilize her expertise in hiring processes, national expansions, interviewing techniques, employee testing, and market analysis. Ms. Friedman is recognized for her ability to build sales teams. She understand startups, the planning required, and how to anticipate the assets need for their growth.

David Kay, MD

David Kay, MD

Founder & Chief Medical Officer

With more than 40 years of medical experience, Dr. Kay is a foot and ankle orthopedic surgeon and an industry KOL. As an inventor and entrepreneur, he partners with individuals who are looking to commercialize their product concepts or established companies that need a new direction in product development. Dr. Kay founded Orthohelix in 1995 to develop innovative implants and instruments for use in small bone reconstructive foot and ankle surgery with an exit of $135M in 2012 to Tornier. His work in innovative foot and ankle implants is widely published and he has participated in over 20 medical device product launches. Dr. Kay is a founder of Resivant and brings a wealth of entrepreneurial and operational expertise in addition to a deep network of colleague KOLs.

Darren Obrigkeit, PhD

Darren Obrigkeit, PhD

Chief Executive Officer

Dr. Obrigkeit is a serial entrepreneur and medical device leader. He has over 25 years’ experience in medical devices and biomaterials, including founding Angstrom Medica (now RTI Surgical – NASDAQ: RTIX), corporate venture investment management at DSM Biomedical, and growing and managing a large portfolio of medical contract design, manufacturing, and services at Flextronics Medical. He earned his Chemical Engineering PhD from MIT in numerical modeling of complex aerosol and particulate processes.

Medical Advisory Board

David Kay, MD

David Kay, MD

Founder & Chief Medical Officer

With more than 40 years of medical experience, Dr. Kay is a foot and ankle orthopedic surgeon and an industry KOL. As an inventor and entrepreneur, he partners with individuals who are looking to commercialize their product concepts or established companies that need a new direction in product development. Dr. Kay founded Orthohelix in 1995 to develop innovative implants and instruments for use in small bone reconstructive foot and ankle surgery with an exit of $135M in 2012 to Tornier. His work in innovative foot and ankle implants is widely published and he has participated in over 20 medical device product launches. Dr. Kay is a founder of Resivant and brings a wealth of entrepreneurial and operational expertise in addition to a deep network of colleague KOLs.

Ananth Murthy, MD

Ananth Murthy, MD

Pediatric Plastic Surgeon

Dr. Murthy is the Director of Pediatric Plastic and Reconstructive Surgery and the Craniofacial Center at Akron Children’s Hospital. He is certified by the American Board of Plastic Surgery. Dr. Murthy completed his medical studies at Northeast Ohio Medical University in Rootstown, OH, a residency in General Surgery at the Cleveland Clinic/Akron General Medical Center, Plastic Surgery at Summa Health in Akron, and a fellowship in Craniofacial Surgery at Harvard/Children’s Hospital in Boston, MA. He is a member of the American Society of Plastic Surgeons and the American Cleft Palate Craniofacial Association (ACPA). He has special interest in wound healing and tissue engineering; and has presented internationally and published in these areas.

Daniela Höller Obrigkeit, MD

Daniela Höller Obrigkeit, MD

Dermatologist

Dr. Höller Obrigkeit is a board-certified dermatologist and faculty member of the RWTH Aachen University Clinic and is the founder and owner of the Praxisklinik für Dermatologie. Her qualifications include postdoctoral research at Harvard Medical School in the plastic surgery department at Brigham and Women’s Hospital (Boston, MA). She is the author of numerous peer-reviewed publications in the field of wound healing, a regular speaker at conferences, and serves as medical advisor to leading international pharmaceutical and aesthetic firms.

Gary Pennington, MD

Gary Pennington, MD

Plastics & Reconstructive Surgeon

Dr. Pennington is a board-certified plastic surgeon by the American Board of Plastic Surgery and is fellowship-trained in hand and microvascular surgery. He has special interests in hand surgery, complex extremity reconstruction, advanced skin cancer reconstruction, melanoma and cosmetic surgery. He completed one year of intense training in hand and microsurgery surgery at the Christine M. Kleinert Institute for Hand and Microvascular Surgery in Louisville, KY. Dr. Pennington has been in the private practice of plastic surgery for over 20 years.