Neural control of bionic legs

Purpose and goal

A neuromusculoskeletal interface that provides a direct connection between a lower limb prosthesis and the skeleton, muscles, and nerves of the residual limb has been developed. It ensures a stable and comfortable mechanical connection and allows for intuitive control of the prosthesis using bioelectric signals from muscles within the residual limb. In addition, can provide sensory feedback from the prosthesis back to the user via stimulation of peripheral nerves.

Expected results and effects

The neuromusculoskeletal interface provides a unique platform for harnessing the underexploited control information of muscles and nerves in the residual limb. It is hypothesized that this information used together with advanced leg prostheses with actuated knee and ankle joints will allow for intuitive prosthesis control, sensory feedback, and functional improvements for individuals with lower limb amputation. The aim of the clinical investigation is to objectively evaluate these aspects.

Planned approach and implementation

Although the original time plan of the project was affected by the on-going COVID-19 pandemic, the collaboration between the project partners and the project execution made considerable progress. It is judged that much of the delay has been caused by factors outside the control of collaborating partners. The collaboration between the parties will continue after the official end date and we aim to perform the clinical implantation of the neuromusculoskeletal within a clinical investigation following the research plan.