Devices descending from K921139

2 later devices reach Healey Revision Component System through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K990032	Modular Protusio Cup	Biomet, Inc.	1999	1	1
+2	K992359	MRS-Titan	Rotec Medizintechnik GmbH	2000	0	—