An adjustable surgical retractor system for clamping system to an operating table. The clamping mechanism includes an upper jaw, lower jaw, a drive member, an adjustable frame support post and releasable locking mechanism for adjusting the height of the surgical retracting frame. The releasable locking...http://www.google.es/patents/US8100827?utm_source=gb-gplus-sharePatente US8100827 - Adjustable rail clamp
