The WalkTrainerTM : A Robotic System for Walking

Abstract

Robots are excellent tools for providing motion. Their motion is precise, stiff and as repeatable as we need. This led the Swiss Foundation for Cyberthosis (SFC) to exploit robotics jointly with the muscle electrostimulation as intelligent rehabilitation devices. This paper will present one of this devices developed by the "Laboratoire des Systemes Robotiques (LSRO) at the EPFL (Ecole Polytechnique Federate de Lausanne). This device called "The WalkTrainerTM" is a robotic rehabilitation system composed by a deambulator, a pelvis orthosis, a body weight support, two leg orthoses and a real time controlled electrostimulator. The WalkTrainerTM is a verticalized system allowing walking rehabilitation process. It can be used for paraplegic and hemiplegic persons. Clinical trials will be performed at the beginning of 2007. In the first part of this paper the context of the development of such devices is presented by introducing a stationary rehabilitation system: the MotionMakerTM. The very encouraging clinical results obtained with this rehabilitation system are briefly presented in this paper and prove the rightness of the concept (Robotic system + Electrostimulation #x021D2; Rehabilitation process). In the second part, the WalkTrainerTM is presented with its components (robotic components and the controller). Finally, we will introduce the use of the WalkTrainerTM, its flexibility and diversity of use either for diagnosis, test or measurement and walking rehabilitation.