An automatic ankle clamp for use with an extramedullary alignment device includes a cradle having a triggering device movably mounted thereon. A pair of clamp arms are resiliently mounted for movement on the triggering device between an open position and a closed position. A latch device interconnects...http://www.google.co.uk/patents/US6221035?utm_source=gb-gplus-sharePatent US6221035 - Automatic ankle clamp
