Patrick O’Donnell

President & Chief Executive Officer

For over 25 years, Patrick has established a successful track record in the medical device, biologics, and biomaterials industries with technologies in the orthopedic, spine, neurosurgery, and sports medicine markets. As an executive officer of biosurgery and medical device companies, he has created the strategy, built and led Board of Directors and Executive Management teams, and raised over $80M in capital to fund and execute product development and clinical programs towards regulatory milestones.

In addition to HD Lifesciences, Patrick is a member of the Board of Directors for Ortho RTI, Inc. and Renovos Biologics, Ltd.  Patrick's prior experiences include most recently the General Manager and Executive Vice-President of North America for BoneSupport A.B.  Prior to Bonesupport, Patrick held CEO roles at Proteothera, Inc, Histogenics Corporation, Prochon-BioTech, and commercial roles of escalating management responsibility with J&J DePuy-Spine.

Bonnie Wilkinson

Vice-President of Finance

Bonnie Wilkinson is a senior financial and operations executive of public and private companies within multiple market sectors (biotech, pharma, medical device, healthcare, hi-tech and manufacturing), from early stage to Fortune 500.  Bonnie has a solid track record of leading organizational change, driving strategic direction, providing solution‐driven results, improving operations by driving efficiencies through streamlining processes, ensuring financial accuracies and government compliance, and leveraging scalability for future growth.

Her prior public and private experience includes finance leadership positions at Xontogeny LLC, Vinfen Corp., Oncorus, Inc, Cubist Pharmaceuticals, National Starch & Chemical, Thermo Fisher Scientific, The Endurance Int’l Group and Foresight Imaging LLC.

As a financial consultant to bluebird bio of Cambridge, Bonnie was an integral part of the successful IPO and follow-on funding, acquisition (Precision Genome Engineering), ERP and Equity implementations, SOX implementation, securing external insurance coverage as well as financial closes and audits. Bonnie earned her Executive MBA at Suffolk University, Sawyer School of Business and a B.S. in Accounting from Merrimack College.

David Rattigan joined HD LifeSciences in 2019 as Area Vice President of Sales, with 18 years of experience in the spine and biologics market. In 2020, HD promoted David to Vice President of Sales to manage national sales efforts.

Prior to joining HD, David was Regional Manager with Titan Spine (acquired by Medtronic) and spent 15 years prior with Medtronic's Spine and Biologics business.  He has achieved multiple accolades in his career, including Presidents Club, Pyramid of Excellence, Region of the Year and is a past volunteer with Healing The Children's Medical Mission trips to China.  

David graduated from Eastern Michigan University with a B.A. in Marketing and Organizational Communication and later attended Grand Valley State University Van Andel Global Trade program for a professional certificate in International Trade. 

Ian Helmar

Vice-President of Research & Development

Ian Helmar is one of the founders of HD Lifesciences with over 10 years of experience designing 3D printed spinal implants and complex instruments.


As the head of Research and Development for HD Lifesciences since 2016, Ian designed the company's core Soft Titanium lattice technology and has led the development effort of HD's product lines.


Ian holds a B.S. in Mechanical Engineering from Rensselaer Polytechnic Institute.

Quality Manager

Christy Rickrode joined the HD Lifesciences Quality team at HD in 2017.

Prior to joining HD, Christy was a Senior Development Engineer for FloSpine.

Christy holds a B.S. in Mechanical Engineering and Biomechanics from the University of Florida as well as a certificate in General Additive Manufacturing.

Christy Rickrode

David Rattigan

Vice-President of Sales