Devices descending from K071771

2 later devices reach Instrumed Retractors through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K161004	Self-retaining Retractor	Fetzer Medical GmbH & Co. KG	2016	1	—
+2	K161680	MEDICON Spinal Spreading Systems	Medicon EG	2017	0	—