Biomedical Engineering Company, Össur has announced the successful development of a thought controlled bionic prosthetic leg. The announcement was made on 20th May 2015 by Jon Sigurdsson, President & CEO of Össur, the global innovator credited with creating the world’s first Bionic prostheses for amputees.
Two amputees are the first people in the world able to control their Bionic prosthetic legs with their thoughts, thanks to tiny implanted myoelectric sensors (IMES) that have been surgically placed in their residual muscle tissue. The IMES, which was provided by the Alfred Mann Foundation, instantaneously triggers the desired movement, via a receiver located inside the prosthesis. This process occurs subconsciously, continuously and in real-time.
“Mind-controlled Bionic prosthetic legs are a remarkable clinical breakthrough in next-generation Bionic technology,” Sigurdsson said, speaking at the company’s Capital Markets Day in Copenhagen. “By adapting not only to the individual’s intentional movements but to intuitive actions, we are closer than ever to creating prosthetics that are truly integrated with their user.”
How Mind-Controlled Bionic Prosthetics Work ?
Össur’s commercially available Bionic prostheses are smart limbs capable of real-time learning and automatically adjusting to their user’s walking style (gait), speed and terrain. Walking with a Bionic prosthesis, however, still typically requires some conscious, intentional thought from the user.
According to Dr. Thorvaldur Ingvarsson, M.D., Ph.D, the orthopaedic surgeon who leads Össur’s research and development efforts and spearheaded the mind-controlled prosthetics project, movement in able-bodied individuals generally begins subconsciously, which triggers electrical impulses inside the body that catalyze the appropriate muscles into action. Össur’s new technology replicates that process in an amputee: that electronic impulse from the brain is received by an IMES that was surgically placed by Dr. Ingvarsson into muscles in the amputee’s residual limb.
“The technology allows the user’s experience with their prosthesis to become more intuitive and integrative,” Dr. Ingvarsson said. “The result is the instantaneous physical movement of the prosthesis however the amputee intended. They no longer need to think about their movements because their unconscious reflexes are automatically converted into myoelectric impulses that control their Bionic prosthesis.”
- Artificial Intelligence automatically adapts to the user’s walking style and environment.
- Automatic terrain adaptation across 2″ of heel height variation.
- Automatic programming and setup for fast and easy fitting.
- Fully charged battery is sufficient for 16–24 hours of continuous use, depending on activity
SYMBIONIC LEG 3 now features a more powerful knee actuator and new kinematic sensor for better stability, increased support across a wider range of stance flexion, and faster, more consistent swing extension.
- New Actuator and kinematic sensor enhance stance stability and dynamics
- New Redesigned extension assist for faster and more natural swing extension
- New Manual extension lock
Featuring the latest advances in Bionic Technology by Össur, SYMBIONIC LEG 3 is the next generation of integrated prosthesis that combines a microprocessor knee and powered microprocessor ankle with proactive ankle flexion. SYMBIONIC LEG 3 was designed to enable users to experience greater safety, symmetry and confidence when walking, without needing to adapt their walking style or otherwise compensate for their prosthesis.
Photo: OSSUR Explore Further about Bionic Leg: SYSBIONIC Leg Source: OSSUR