About Us


Hy5 has developed a disruptive myoelectrical prosthetic hand

– bringing a unique value proposition of advanced gripping

functionality and comfort at a competitive cost. The core of

our prosthesis is its patented hydraulics-based design,

combined with highly mechanically optimized, 3D-printed

parts for an unmatched value-for-money gripping

performance and lifelike weight for utmost end-user comfort.

Key staff members involved in the project

Christian Fredrik Stray
Co-founder & CEO

Biomedical engineer & MBA, USA and France. Great experience in medical device industry, and executive management & various board of directors positions.

Ole Olsen 
SME Project manager & CMO

Industrial design engineer with broad 

experience in project management, 

industrial design, mechanical engineering,medtech industry and quality regulatory work.

Jos Poirters 
Co-founder and Senior R&D Engineer

Mechanical engineer from the Netherlands with great experience as CAD engineer/Mechanical designer and Project manager