The early reports were done with three trocars at
the umbilicus, later two trocars were used with suture
on a needle inserted through the right upper abdominal
wall to retract the fundus of the gallbladder
(16,17), and the triangle of Calot was exposed. It is
difficult to adjust the hauling spot and dissect the
gallbladder, which results in long time needed of
surgery. In this study, we developed a simple method
which was easy and feasible to establish an operation
channel and maintain pneumoperitoneum. Compared
with other methods, the method we created
has the following advantages: