Abstract: A hose pump is provided having an elastically deformable hose (3) for a medium (7) to be conveyed, and a hose bed (2), over which the hose (3) is guided. Furthermore, at least one squeeze element (6) is provided that is movable along the hose bed (2), for deforming the hose (3) on the hose bed (2) in order to this way move forward the medium (7) inside the hose (3). The hose bed (2) is provided at least partially with a friction-reducing coating (8).

Abstract: An apparatus for the high-frequency treatment of body tissue comprises a head (10) which is provided with at least one HF electrode (14a, 14b, 14c) of an electrically conductive material. Optionally one electrode (14a, 14b) can be brought into contact with the tissue (24) to be treated and electrically activated. In order to avoid undesired temperature peaks provisions are made that the head supporting the HF electrode or the HF electrodes, respectively, comprises highly heat conductive portions (12) in order to dissipate heat generating at the HF electrode or the HF electrodes, respectively, in particular in the proximal direction.