Ottobock Myo Plus pattern recognition

To make optimum use of the Myo Plus prosthesis control system presented in the last article, it can be customized via an app. The biggest challenge with the control system is the similarity of individual patterns. As many hand movements differ only by nuances, the Myo Plus pattern recognition must recognize and correctly assign a large number of different patterns. After initial configuration by an orthopaedic technician, the prosthesis wearer has the option of using the app to train communication with the prosthesis. To do this, the measured movement patterns are transferred to a smartphone or tablet and visualized. The initial training to use the new control system takes a few days, depending on the patient. As soon as the communication between the user and the prosthesis controller is working, the user can save the progress in the app and readjust it themselves. Users can also set the speed of the hand and the speed of rotation.

During the development of the configuration and training app, the blue-zone team was able to support Ottobock's developers in the areas of design, implementation, optimization, verification and documentation, thus making a valuable contribution to this great product.