How it works
Trocar inserted into port site opening to depth of markings (observed from telescope in another port).
Needle carrying the suture pushed through trocar conduit, muscle tissue and into the abdominal cavity.
Trocar pulled outwards to reveal lower opening of conduit so that suture can be removed from conduit.
Trocar rotated about 180° (or smaller angles as appropriate for location of suture around port opening) and pushed back inwards to level of markings.
Needle reinserted into trocar conduit, through muscle tissue and into abdominal cavity on other side of opening.
Suture grasped by suture carrying needle.
Trocar pulled outwards to reveal lower conduit opening again so that suture can be removed from trocar conduit.
Suture safely snugged up around the trocar watched by the intra abdominal telescope. (For multiple individual or continuous sutures, trocar would be kept in until all sutures in place, with each suture tightened and snugged up against sides).
Both ends of suture pulled to tighten loop against the peritoneal lining and draw muscle tissue together, maintaining the pneumoperitoneum. Suture site can be inspected with the telescope inside the abdomen. Suture tied against outside of muscle layer.