Device for the separation of flue gas particles in laparoscopy

A device for the separation of particles, drop-lets, and humidity from flowing flue gases having a flow rate of 3 to 20 l/min,

• comprising a tube of length 1 of 10 to 50 mm, the tube having an inner diameter di of 4 to 20 mm,
• comprising an axially located flow body K having a web cross-section of 0.5 to 6 mm,
• comprising two to six guide vanes L disposed between the axially located flow body K and the inner wall of the tube, the guide vanes L being rigidly connected to the inner wall of the tube,
• wherein the guide vanes L are helically arranged so as to confer a radial movement component to the gas flowing through, the guide vanes having a ratio S of a vane entry surface area FE to a vane exit surface area FA of between 2.7 and 3.3;
• wherein the vane entry surface are FE defines an effective flow cross-section at an inlet to the guide vanes and the vane exit surface area FA defines a flow cross-section at an outlet from the guide vanes.