A61L33/00	Antithrombogenic treatment of surgical articles, e.g. sutures, catheters, prostheses, as well as articles for the manipulation or conditioning of blood; materials for such treatment [4, 7]
	Note(s) In groups A61L 33/02-A61L 33/18, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, classification is made in the last appropriate place. [7]