Devices descending from K901831

2 later devices reach Precision Medical Oxygen Regulator through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K061785	Cyl-Fil Oxygen System	Responsive Respiratory, Inc.	2006	1	—
+2	K080243	Portable Oxygen Unit SCA900	San Cheong Co., Ltd.	2009	0	—