Veress Needle

The Veress needle entry technique starts with a small skin incision. The needle is then held at a 90 - degree angle and inserted through the abdominal wall. A "pop" sensation indicates penetration through the fascia and peritoneum. Aspiration is done to confirm proper placement before injecting carbon dioxide to create a pneumoperitoneum for laparoscopic procedures.

The Veress needle and Hasson technique are distinct approaches in laparoscopic access. The Veress needle offers a closed - entry method. It is a slender, sharp instrument inserted through a tiny incision in the abdominal wall. After insertion, a two - stage "pop" signals penetration through the fascia and peritoneum. It is used to insufflate carbon dioxide, creating a pneumoperitoneum that provides space for subsequent trocar placement. This method is quick, but risks exist, especially in patients with adhesions. The Hasson technique, on the other hand, is an open - entry approach. A small incision is made, and the fascia is carefully dissected. A blunt - tipped cannula is then inserted under direct vision, reducing the risk of organ injury. It is ideal for patients with a history of abdominal surgeries or suspected adhesions, though it may be more time - consuming compared to the Veress needle.