Devices descending from K990271

3 later devices reach Endosonics Trak Back Device through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K021802	Stereotaxis Catheter Advancer System	Stereotaxis, Inc.	2003	2	—
+2	K042850	Cardiodrive, Model 001-004115 (Non-Sterile); 001-1169-1 (Sterile)	Stereotaxis, Inc.	2006	0	—
+2	K051374	Cardiodrive Catheter Advancement System	Stereotaxis, Inc.	2005	0	—