Devices descending from K192642

2 later devices reach 308nm Excimer System through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K200971	308nm Excimer System	Xuzhou Kernel Medical Equipment Co., Ltd.	2020	1	—
+2	K242977	308nm Excimer Phototherapy Device (CN-308E, KN-4003B3, KN-4003B4, KN-5000C KN-5000D…	Xuzhou Kernel Medical Equipment Co., Ltd.	2025	0	—