Abstract: Carrying arrangement for carrying apparatuses, in particular medical apparatuses, having a base carrier on which at least three roller elements are arranged in order to move the carrying arrangement with respect to a floor surface. The roller elements are each rotatable about first axes of rotation (D). At least one of these roller elements is pivotable about a pivot axis (S) with respect to the base carrier. The axes of rotation (D) and the pivot axis (S) extend in different directions. At least one supporting element is arranged at least indirectly on the base carrier. The supporting element does not contact the floor in a first position of the carrying arrangement with respect to the floor surface and the supporting element contacts the floor in a second position of the carrying arrangement with respect to the floor, the second position being pivoted with respect to the first position.

Abstract: Carrying arrangement for carrying apparatuses, in particular medical apparatuses, having a base carrier on which at least three roller elements are arranged in order to move the carrying arrangement with respect to a floor surface. The roller elements are each rotatable about first axes of rotation (D). At least one of these roller elements is pivotable about a pivot axis (S) with respect to the base carrier. The axes of rotation (D) and the pivot axis (S) extend in different directions. At least one supporting element is arranged at least indirectly on the base carrier. The supporting element does not contact the floor in a first position of the carrying arrangement with respect to the floor surface and the supporting element contacts the floor in a second position of the carrying arrangement with respect to the floor, the second position being pivoted with respect to the first position.

Abstract: A medical instrument arrangement includes an operation microscope system (100) and a carrier unit (101) carrying the operation microscope (102). The medical instrument arrangement is at least partially covered by a drape (110). The air inside the drape (110) is removed by a suction unit. The drape (110) is fixed to a portion of the carrier unit (101) at a collar (115). By operating the suction unit at different suction rates, disturbing vibrations of the system during a surgical procedure can be minimized.