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Low mass hand haptic device

The hand exoskeleton device is a system that was developed to provides force feedback to the index, middle and ring fingers and to the thumb.

For the first three fingers force feedback is provided for their proximal and distal phalanxes while for the thumb only the distal phalanx is currently active. The hand Exoskeleton structure resides on the dorsal side of the hand and the forces are applied from that direction.

The feedback forces are generated by dc motors mounted in a low profile power pack and are transmitted to the fingers by low friction pull-cables. Measurement of the finger flexion is achieved by a combination of flexible resistive sensors integrated in a soft lycra glove and custom made linear electromagnetic sensors embedded in the exoskeleton’s metallic structure.

The incorporated glove unlike other systems is part of the exoskeleton structure and thus it is faster to put on and take off. The exoskeleton is designed to fit a range of hand sizes and for this purpose it incorporates adjustment levers that allow fast and easy adjustment of the metallic structure for the three fingers.

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Reported by

University of Salford
Newton Building
M5 4WT Salford
United Kingdom
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