The Veress needle is intended for perculaneous insertion into the peritoneal cavity for the purpose of insufflation with carbon dioxide to establish pneumoperitoneum prior to placement of trocars during lapaoscopic procedures. Can also be used for diagnostic or therapeutic paracentesis and thoracentesis.
The stainless steel needle is attached at its proximal end to a plastic handle. The handle is shaped for comfort and contains a stopcock and a luer lock connector for insufflation the abdominal cavity.
Inside the needle sleeve and extending beyond the needle tip is a spring-loaded blunt stylet.
The stylet retracts as the needle is pushed throught the abdominal tissue and automatically advances forward once the needle's tip reaches the body cavity.