A percutaneously introduced grasper (Teleflex MiniLap Percutaneous Surgical System, Morrisville, NC) was used to retract the left lobe of the liver in all cases.  Percutaneous retraction of the liver using the Teleflex MiniLap Percutaneous Surgical System was found to be safe and effective in this large series of morbidly obese patients. 
Teleflex MiniLap Percutaneous Surgical System