Available technologies, Life Sciences, Medical devices, Medical Hardware


10X more flexible compared to titane rods

Spinal fusion market opportunity

  • Spinal fusion involves the fusion of 2 or more vertebrae
  • Indicated to relieve instabilities, neurological injuries, scoliosis or fractures
  • Spinal fusion and fixation technologies market to reach $14.7B in 2021 (Markets & Markets)
  • The rigidity of the spinal implants is associated with the degeneration of adjacent segments in 30% of spinal fusion surgeries
  • Commercially available spinal implants are complex, bulky and subjected to recurrent breakdowns
  • Need to minimize the need for repeated surgeries and decrease recovery time

A new monolithic transition implant

  • New spinal implant developed to allow movements and improve mechanical properties
  • Creates a gradual transition from the instrumented fusion zone to the intact segment
  • Manufactured using additive technology (free of moving parts, welds and threads)
  • Innovation born from a collaboration between École de Technologie Supérieure (Dr. V. Brailovski and Dr. Y. Petit) and University de Montréal (Dr. J. Mac-Thiong)
  • Laboratory prototype tested according to ASTM F1717 standards (~10-fold more flexible compared to Ti or TiNi rods)

Multiple advantages related to spinal implant flexibility

  • Reduction of stress concentration at instrumentation ends
  • Allows natural alignment of vertebrae
  • High reliability (monolithic conception)
  • Patient customization (size and rigidity)
  • Compatibility with existing fixation systems
  • Reduction of wear and adjacent fracture risks
  • Reduction of instrument breakage risks
  • Reduction of tearing risks at attachment sites

Business opportunity

  • Intellectual property: secret and know-how
  • Looking for co-development partners


If you are interested by this technology, please contact :

Christine Martens, Principal Director Business Development, Life Sciences
cmartens@aligo.ca, (514) 840-1226, Ext. 3008


École de Technologie Supérieure and Université de Montréal

Main inventors

Photo Vladimir Brailovski

Dr. Vladimir Brailovski, Professor mechanical engineering

Vladimir Brailovsky is Professor of Mechanical Engineering at ÉTS since 2000, where he was hired after spending 7 years at École Polytechnique de Montréal. He is also a researcher at the Centre de recherche de l’Hôpital du Sacré-Cœur de Montréal. V. Brailovsky holds an internationally recognized expertise in the design, manufacture and application of shape memory alloys. Much of his knowledge is in the border areas of mechanical engineering and materials science. Since 2015, he is primarily interested in the application of 3D printing technology in the medical and aerospace fields. He currently leads a research team of about twenty people working on multidisciplinary projects with several industrial opportunities.


Dr. Jean-Marc Mac-Thiong, Orthopedic surgeon and assistant clinical professor

Mac-Thiong completed his training in medicine and orthopedics at the Université de Montréal after completing studies in mechanical engineering at École Polytechnique de Montréal. He has subspecialty training in spine area through a fellowship in spine surgery at Twin Cities Spine Center in Minnesota, and a Master and a PhD in Biomedical Sciences at the Université de Montréal. He is currently a Clinical Research Fellow at the FRQS. His research focuses on the care of patients following vertebral and spinal cord injuries, as well as on the development of animal models for traumatic spinal injury.

Photo Yvan Petit

Dr. Yvan Petit, Professor mechanical engineering

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