An arrangement for supporting a surgical robot

A method for stabilising a surgical robot on an uneven surface, the method comprising:

• stopping the motion of the surgical robot relative to the surface;
• and
• lowering a linear lifting column towards the surface, the linear lifting column being coupled to an arrangement comprising a planar member on which the surgical robot is supported and a bladder coupled to a bottom surface of the planar member, the bladder comprising:
• an external membrane having a surface which opposes the bottom surface of the planar member and which is configured to comply with an uneven surface that it is in contact with, an internal cavity defined by the external membrane and holding a plurality of solid particles and being configured to hold a plurality of fluid particles and an opening in the external membrane that is configured to enable the extraction of one or more of the fluid particles such that the bladder contacts and conforms to the surface, thereby stabilising the surgical robot on the surface.