| abstract |
An assembly includes a stabiliser and an instrument to be positioned in or around a passage surrounded by body tissue, in particular vascular tissue. The stabiliser is provided with one or more suction nozzles running in the shape of a loop, which nozzles can be operationally connected to suction elements in order to suck tightly to tissue close to and around the passage, which may still have to be made. The instrument has a head section for performing operations on vascular tissue. The stabiliser and the instrument include, respectively, an instrument stop provided on the stabiliser and a stabiliser stop provided on the instrument, which, in the stop position when they are in contact with one another, unambiguously define the position of the head section with respect to the position of the loop shape. |