Devices descending from K921806

2 later devices reach Vacutainer (R) Brand SST (R) and Cat Tubes through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K960858	Greiner Vacutte Blood Collection Tube W/ Clot Activator & Gel Separator	Greiner America, Inc.	1996	1	2
+2	K983952	Greiner Vacuette Blood Collection Tube	Greiner Meditech, Inc.	1998	0	3