# K914620: HMS-4000 Physiological Monitor, Modification

- Pathway: 510(k) (Traditional)
- Applicant: Vitalog Monitoring,Inc.
- Decided: May 1, 1992 after 198 days
- Product code: DQA (Oximeter)
- Device class: 2
- Regulation: 21 CFR 870.2700
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
102 later devices descend from it; 2 cite it directly.
0 of 103 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K973920: Stardust (1998), 100 descendants of its own
- K000253: Silent Night V (2000), 69 descendants of its own
- K042745: Lifescreen Apnea (2005), 63 descendants of its own
- K083325: N-600X with SPD, Oximax N-600X (2009), 53 descendants of its own
- K111933: Covidien Nellcor Respiration Rate Software Application, Version 1.0 (2012), 49 descendants of its own

Source page: https://510kreport.com/device/K914620
Methodology: https://510kreport.com/methodology