'Advanced' short peripheral cannulas are represented by short cannulas provided with a pre-assembled extension, with a large and soft wing, typicallymade of biocompatible materials, such as polyurethane, which carries a lower risk of thrombosis if compared to teflon.
These cannulas have an expected duration of several days (up to a week), as long as they are positioned and managed according to the recommendations of the INS and EPIC guidelines (insertion site far from flexion zones; skin antisepsis with chlorhexidine 2% in alcohol; cover with transparent semipermeable bordered dressing; flushing of the lumen with normal saline - preferably using pre-filled syringes - before and after each infusion).