Intermediate
Technical
IVT
Veress needle
Pronunciation: veh-RESS
A spring-loaded needle used to safely establish pneumoperitoneum before trocar insertion.
Full Definition
The Veress needle is a specialized instrument featuring a spring-loaded blunt tip that retracts when pressure is applied and extends when pressure is released. This safety mechanism helps prevent injury to intra-abdominal organs during initial gas insufflation. The needle is typically inserted at the umbilicus or Palmer's point, and proper placement is confirmed through various tests including the saline drop test and pressure readings. Named after Hungarian surgeon János Veress, it remains the standard method for closed laparoscopic entry.
Usage
Usage note: Capitalize as it's named after János Veress.
In Context
- "A Veress needle was inserted at the umbilicus and position confirmed with the drop test." — Operative report
- "Initial pressure through the Veress needle was 8 mmHg, confirming intraperitoneal placement." — Surgical procedure note
Also known as
insufflation needle
Don't confuse with
spinal needle
epidural needle