The lowest pressure of pneumoperitoneum with the usage of the novel trocar was tested first.We found the pressure was dependent on the target organ.

• 由于腹腔镜胆囊切除术是目前最盛行的腹腔镜手术之一，我们用它来比较新式套管及传统套管在腹腔镜手术中使用的差别。