Radiological apparatus for medical purposes, namely radiation therapy catheter delivery devices; component parts thereof, namely, transfer or loading devices, delivery catheters, radioactive sources, marker seeds, connectors, receptacles, sterile sheaths, and pumps, syringes or other devices used to create motive force; and accessories therefor, namely non-radioactive sources (dummy or passive sources), passive-run devices (dummy transfer devices), radioactive source recovery equipment, bail-out containers, biohazard containers, radioactivity shields, radiation safe containers, storage containers with radioactivity shielding, transport cases, tubing, cannulas, connectors, adaptors, extensions, sterile sheaths, sterile drapes, covers, protectors, timers, and lighting devices