Trocar sleeve

摘要

Trocar sleeve comprises a valve (3) arranged in a valve housing. The valve has sealing lips (8) elastically lying against each other, and an instrument-insertion region (11) formed by a wall section (5) which narrows in the distal direction. The sealing lips are pressed apart by an instrument inserted through the insertion region. The wall section is dome-shaped at least in its distal region and has slit-like openings (6) forming the sealing lips. The sealing lips extend from the distal end point (7) of the insertion region in the proximal direction along the dome-shaped wall section. At least one pocket-shaped region is formed between the outer side of the dome-shaped wall section and a limiting wall surrounding this wall section. Preferred Features: The dome-shaped wall section has the shape of a universal ball joint and is made of an elastic material, especially plastic.