Trocar

Trocars are special tubes that facilitate the insertion and removal of laparoscopic instruments into the abdomen. Trocars allow the insertion and removal of laparoscopic instruments into and out of the abdomen, while preventing the escaping of carbon dioxide gas inside (Valve). In 1970, Dr Harrith M Hasson (Egyptian Obstetrician, 1931-2012) developed the technique of blunt-tipped trocar insertion by performing a mini-laparotomy in the abdomen. This technique is still used today (Hasson Technique), the trocar is also called Hasson Trocar (blunt tip).

Trocars have three major parts (parts): the cannula, the obtrator through it, and the valve. The tip of the obtrator can be angular sharp, sharp-conical, automatic blade or blunt. On the cannulas, there are usually valves that prevent the escaping of carbon dioxide in the abdomen and taps to which the gas (CO2) hose is connected. Trocars can be disposable (single use, plastic) or reusable (metal). Trocars are available in diameters of 3, 5, 10, 12, 15 mm.

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