Trocars & Cannulas

What This Collection Covers

• Standard trocar-cannulas — 10 and 11 mm, with pyramidal and conical trocars
• Storz-compatible trocars — pyramidal tip patterns
• Mini trocars — 2 to 3.5 mm for needlescopic and paediatric work
• Reducers — to use smaller instruments through a larger cannula without losing pneumoperitoneum

Pyramidal or Conical Tip?

A pyramidal tip cuts through fascia with its edges and needs less force to enter. A conical (blunt) tip pushes tissue fibres apart instead of cutting them, which usually leaves a smaller fascial defect. Choice depends on the entry site and the surgeon's technique.

How to Choose

Diameter. Match the cannula to the largest instrument that will pass through it; 10 or 11 mm for the camera and staplers, 5 mm for most hand instruments.

Reducer. If one port must take both 10 mm and 5 mm instruments, add a reducer.

Frequently Asked Questions

What is the difference between a trocar and a cannula?
The trocar is the pointed inner part used to enter; the cannula is the hollow sleeve that stays in place as the working port.

Are reusable trocars autoclavable?
Yes. Stainless reusable trocar-cannulas are disassembled and steam sterilized; valves and seals are replaced as they wear.

Related categories: cannulas, cannulas and sheaths, laparoscopic instruments, laparoscopic forceps, telescopes and optics and endoscopy.