An apparatus and method for assembly and disassembly of interchangeable surgical acoustic members includes a fixture for securing by a key a handpiece to which a tip and/or extender is attached. A torquing wrench has a tightening head and an untightening head on the same body, wherein the tightening...http://www.google.co.uk/patents/US4832021?utm_source=gb-gplus-sharePatent US4832021 - Apparatus and method for assembly and disassembly of interchangeable surgical acoustic members
