Patent ID: 7063706
Filing Date: 2006-06-20
Classification: A61B

Abstract:
1. A distraction device for bridging a bone gap, comprises at least two elements movable relative to one another, wherein the first element ( 1 ) is connected to the second element ( 2 ) by at least one detent means ( 3 ) for securing a distraction movement, and the second element ( 2 ) is assigned a pusher module means ( 12 ) for distraction of the first element ( 1 ) , which is connected to the second element ( 2 ) so as to permit locking, a spring element ( 16 ) is provided between the pusher module means ( 12 ) and the second element ( 2 ) and exerts pressure on the pusher module means ( 12 ), wherein, in order to move the pusher module means ( 12 ) back and to tension the spring element ( 16 ) between pusher module ( 12 ) and second element ( 2 ), a compression rod ( 9 ) is provided, together with an actuating device ( 11 ) interposed between the compression rod ( 9 ) and the push module means ( 12 ), the actuating device ( 11 ) comprises at least one shape-memory element ( 17 . 1 , 17 . 2 ) and a heating device ( 18 . 1 , 18 . 2 ).