# K950779: Heart Rate Variability Software Option

- Pathway: 510(k) (Traditional)
- Applicant: Spacelabs, Inc.
- Decided: Apr 25, 1995 after 63 days
- Product code: DPS (Electrocardiograph)
- Device class: 2
- Regulation: 21 CFR 870.2340
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
96 later devices descend from it; 3 cite it directly.
0 of 97 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
- K991786: Mars Unity Workstation with Heart Rate Variability (HRV) Option (1999), 64 descendants of its own
- K042108: Vista Plus (2005), 46 descendants of its own
- K071641: Reveal XT; Insertable Cardiac Monitor (Model 9529), Patient Assistant (Model 9539) (2007), 40 descendants of its own
- K972991: Monitor One NDX (1998), 31 descendants of its own
- K071655: Reveal DX Insertable Cardiac Monitor, Reveal Patient Assistant, Model (S) 9528,9538 (2007), 30 descendants of its own

Source page: https://510kreport.com/device/K950779
Methodology: https://510kreport.com/methodology