External communication devices should be classified according to the contact of these devices with the application places listed below.
a) Devices that come into contact with the bloodstream at one point and serve as a route for entry into the vascular system
EXAMPLES: Solution delivery sets, extension sets, transfer sets and blood donation sets.
b) Devices in contact with tissue, bone or pulp / dentine systems.
EXAMPLES: Laparoscopes, arthroscopes, drainage systems, dental cements, dental filling materials, and skin staples.
c) Devices that come into contact with circulating blood
EXAMPLES: Intravenous catheters, temporary pacemaker (pacemaker) electrodes, oxygen generators, extracorporeal oxygen generator tubes and accessories, dialysis devices, dialysis tubes and accessories, hemoadsorbents and immunadsorbents.