tihomir Mar 20, 2012:

charring The text is probably about technology used for removing tissue using instant coagulation and avoiding bleeding. If done at too high temperatures, there will be charring, if temperature is too low - there will be bleeding.
http://www.arthrocare.com/our_technology/ot_coblation_explai...

You can see a video of how it is done here (not for the faint-hearted!!!):
http://www.youtube.com/watch?v=EqNPwJnkC38