Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    STRING-MAN: Wire-robot technology for safe, flexible and human-friendly gait rehabilitation
    ( 2007)
    Surdilovic, D.
    ;
    Bernhardt, R.
    ;
    Zhang, J.
    The paper presents a novel concept of lightweight and inherently safe robotic systems for assisting the locomotion recovery therapy and training. This concept, referred to as STRING-MAN, is established on string-puppet idea and utilizes modular wire robot components and advanced artificial muscles drives. An overview of the system's fundamental components, such as mechanical structure, patient-machine interface, sensory systems, control algorithms, etc, is given in the paper. The results of initial experiments clearly demonstrate the benefits and potential of new concept. Finally further development of STRING-MAN idea towards practical and inherently safe robotic rehabilitation assistants has also been presented. Entnommen aus TEMA
  • Publication
    Gait machines and robots to support motor rehabilitation after stroke
    ( 2007)
    Schmidt, H.
    ;
    Hussein, S.
    ;
    Werner, C.
    ;
    Bernhardt, R.
    ;
    Hesse, S.
    ;
    Krüger, J.
    The group at Klinik Berlin/Charite University Hospital in Berlin, Germany, began studies to promote motor recovery after stroke in the early 1990s. Following the introduction of treadmill training with partial body-weight support, the group designed an electromechanical gait trainer, GT I, based on movable foot plates that relieve therapist effort (e.g., when assisting the movement of the paretic limbs) and intensify patient gait training (GT). Preliminary results of a recent multicenter trial of 155 acute stroke patients showed that the GT I effectively promotes gait ability and competence in activities of daily living. The experimental group received 20 min of GT and 25 min of physiotherapy (PT) and the control group received 45 min of PT every day for 4 weeks. The laboratory's next step was the HapticWalker, a robotic walking simulator with freely programmable foot plates which was designed and built in close collaboration with the Fraunhofer Institute IPK. On this machine patients can, for example, additionally train for stair climbing and perturbations. The foot plates can be operated in full guidance or compliance control modes, thus reducing foot support according to the patient's learning success. Entnommen aus TEMA