Mechnosuture

Mechnosutures were a type of surgical stitches used to close a wound or join tissues. After Kylo Ren suffered lightsaber slashes at Rey's hand across his chest and face, an IT-S00.2 medical droid sealed the skin gashes with mechnosutures, while also applying bacta therapy to prevent scarring.

Text and facts from the “Mechnosuture” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.