Powered injectors for injecting contrast media into the body of a human or animal to facilitate imaging body organs and by radiography, computed tomography, and the like; medical tubing for administration and draining of fluids; containers, namely, syringes; medical apparatus, namely, medical apparatus consisting of contrast media power injection operator consoles, console and injector power head mounts, and accessories, namely, extension and interconnect cables, remote switches, ECG interfaces and pre-amplifiers; medical injection apparatus and instruments in the nature of syringe pressure jackets and heaters, and holders for dropper bottles for medical purposes