Devices descending from K170904

3 later devices reach Biograph Horizon PET/CT through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K193178	Biograph Horizon	Siemens Medical Solution USA, Inc.	2020	2	1
+2	K253844	AnyScan 3.0 NM Scanner Family	Mediso Medical Imaging Systems, Ltd.	2025	0	—
+2	K222895	DynamicIQ	GE Medical Systems SCS	2022	0	—