#$%^&*AU2020207862A120200813.pdf#####Abstract The present invention is directed to a system comprising a medical instrument (e.g. cup implant, 3) and a holding device (2) that interacts with said medical instrument to form a salable cavity within the combined 5 arrangement of components. An impaction device (1) is also provided, preferably which provides means to allow fluid to be expelled from the cavity but which prevents further fluid from entering the cavity. FIG. 11/18 7 2 6 7 Figure 2 3 5 Figure 1 10 13_ 914 Figure 3 Figure 4