Abstract: A multi-drug intravenous infusion apparatus which comprises a plurality of vials containing drugs to be provided to a patient; a fluid container containing fluid to be mixed with the drugs; conduit mechanism for leading drugs from the vials, mixed with the fluid from the container, to mechanism for introducing the drugs with the fluid into the patient's body, the conduit mechanism comprising: a main section, a plurality of individual sections, each comprising at least a collapsible portion, connected to the vials and to the main sections, a terminal section connected to the main section and the mechanism for introducing the drugs with the fluid into the patient's body, and a fluid section leading fluid from the fluid container to the terminal section; a switching unit comprising a plurality of switches, each one associated with one of the individual sections, wherein each switch is capable of either blocking the drug flow in the associated section by exerting pressure whereby to collapse the collapsible porti

Abstract: An apparatus and method for inspection of metallic surfaces before subsequent treatment thereof (for example, painting) are disclosed. In accordance with the invention, several light sources illuminate the inspected surface with light beams having different wave lengths, reflected radiation is detected and converted to electrical signals, the electrical signals are processed digitally, and the results of processing are displayed. Some of the light sources are mounted so as to produce light beams inclined with respect to the inspected surface. These light beams are defined by an angular divergence of not more than 5 degrees. Display of results can be presented, in terms of the ISO standard, for inspection and assessment of industrial steel surfaces (i.e., in terms of preparation grades).