An orifice introducer device for introducing, e.g., a surgical device, into, e.g., an orifice of a body, includes a tubular member having a distal end and a proximal end. The distal end is adjustable between a first position for insertion into an orifice and a second position once inserted into the orifice....http://www.google.com.au/patents/US7874981?utm_source=gb-gplus-sharePatent US7874981 - Orifice introducer device
