Intermediate
Technical
In the Industry Vocabulary Test
trocar
Pronunciation: TROH-kar
A sharp-pointed surgical instrument with a cannula used to create initial access ports during laparoscopic procedures.
Full Definition
A trocar is a sharp, pointed surgical instrument consisting of a sharp obturator inside a cannula (hollow tube) used to puncture the abdominal wall and create access ports for laparoscopic surgery. Once inserted, the sharp obturator is removed, leaving the cannula in place to serve as a conduit for inserting laparoscopic instruments and the camera. Trocars come in various sizes (typically 5mm, 10mm, 12mm) and may be disposable or reusable. Proper trocar placement is critical for safe laparoscopic access.
In Context
- "A 12mm trocar was placed at the umbilicus for camera insertion." — Operative report
- "Three additional 5mm trocars were positioned under direct visualization." — Surgical procedure note
Also known as
port
cannula system
Don't confuse with
catheter
stylet