Continuous wound infiltration
Continuous wound infiltration (CWI) refers to the continuous infiltration of a local anesthetic into a surgical wound to aid in pain management during post-operative recovery. == History == Continuous wound infiltration first appeared on the market in the late 1990s when a US company (I-Flow Corporation) found a way to evenly spread and continuously infiltrate a local anesthetic, via a specially designed multi holed catheter, inside the wound, to enable post-operative pain treatment.
Source: Wikipedia — Continuous wound infiltration (CC BY-SA 4.0)