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MAK ACTIVE KNEE: Powered knee orthosis from Marsi-Bionics

First robotic knee brace with adaptive stiffness that interprets the patient's needs and provides the strength, mobility and stability required to walk. Sensors provide biomechanical analysis of the patient's gait and work to improve it.

  • Shortening the recovery time
  • Personalization of the exercise for each patient
  • Reduction of pain

Functions and advantages

Everything you need to know about the features and benefits of the MAK ACTIVE KNEE: Powered knee orthosis from Marsi-Bionics need to know.


Shortening the recovery time of total knee arthroplasty patients by 66% compared with conventional treatment.


Reduction of pain during the sessions and consequently a lower wear rate of rehabilitation treatment, allowing the patient to maximize recovery.


Reduction of pain during the sessions thanks to the adaptation and adjustment of the exercises. This motivates patients to exercise the surgical area and consequently inflammation and pain are reduced.


Extraction of objective and standardized data both in the initial evaluation of rehabilitation and in the development. Identification of deviations both in the angles and in the force.


Personalization of the exercise for each patient and implementation of therapy with absolute precision and repetition.


Higher level of recovery and satisfaction

Do you have any questions?

Can't find the answer to your question? Contact us.

For whom is the MAK Active Knee suitable and for whom not?

MAK Active Knee has CE approval and is indicated for use in gait rehabilitation for patients with hemiplegia or knee weakness. Currently successfully tested in:


  • Rehabilitation after total knee arthroplasty


MAK is currently in clinical trials to expand its use for:


  • Rehabilitation of brain damage (stroke)
  • Multiple Sclerosis Treatment
  • Treatment of muscular atrophies
  • Treatment of muscular dystrophies
  • Assistance with age-related muscle weakness


User requirements

  • Maximum weight 100 Kg
  • Contraindications: Osteoporosis, severe spasticity and skin diseases that are negatively affected by orthoses.

Company information

Facts & Figures

Marsi Bionics (Marsi) is an SME founded in 2013 as a spin-off of the Centro de Automática y Robótica (CAR), a joint center of the Universidad Politécnica de Madrid (UPM) and the Spanish National Research Council (CSIC). Since 2019, the CSIC has been part of the iMarsi shareholders. It is recognized as a technology-based company (TBC) that has a major impact on the development of disruptive technologies for the healthcare sector. Since its creation until the end of 2020, the main activity of the company is focused on the industrialization and certification of exoskeletons as medical devices, until obtaining the CE marking by the notified bodies, the authorization for their commercialization throughout Europe. The end of this phase will allow the commercialization and use of exoskeletons in controlled environments, i.e. hospitals and specialized therapy centers. Marsi Bionics has received numerous awards for its technological innovation and social impact, including the CEPYME 2015 Award for the best entrepreneurial project from the hands of King Philip VI, the FENIN 2017 Award for Entrepreneurship in Healthcare Technology or the Discapnet Award of the ONCE Foundation 2019, presented by H.M. Queen Letizia.

Company address

  • Calle Marie Curie 19
  • 1-6 28521 - Rivas-Vaciamadrid
  • Madrid (España)

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