Via these reduction systems, instruments with a smaller diameter than the trocar sleeve can be used without pressure loss.
The fixable sliding cone is used in the open laparoscopy. The Hasson cone is made of
stainless steel, demountable and has two
For anchoring the trocar sleeve in th abdominal wall, screw-in stops are used. For this purpose, the TrocaStop is slid on the standard guide tube and fixed with a clamp screw.