Figure 1.

Incision of SI+1 port vs. 5 traditional incisions. (A) Incision of SI+1 port, a longitudinal incision of 3–4 cm was made in the umbilical midline, a TriPortTM incision protective sleeve was installed in it, and a 10 mm trocar was inserted through a 1 cm incision at 2 cm below the costal edge of the left midclavicular line. (B) A 1 cm incision above the umbilicus was used as the observation port, another 4 incisions under the costal margin of the right midclavicular line, the junction point between the left and right midclavicular line and the 2 cm horizontal line above the umbilicus, and the subxiphoid process were used as operating ports.