Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mechanical Counter-Traction System (MCTS). (A) The MCTS is housed inside an overtube with a 20-mm diameter. (B) When the overtube is pulled, eight expansion arms widen the collapsing stomach wall. (C) In an in vivo experiment in a dog, sufficient expansion of the surgical field allowed endoscopic full-thickness resection to be accomplished without insufflation.
