A rotational surgical instrument including a working head connected to a rotatable, pencil-like handle. The handle includes a casing with distal and proximal end caps, an elongated outer member extending into the casing, and a actuation link extending from the distal end cap through the casing and elongated...http://www.google.se/patents/US5338317?utm_source=gb-gplus-sharePatent US5338317 - Rotational surgical instrument handle
