# K941252: Respiratory and Cardiac Spectral Frequency Signal Processor

- Pathway: 510(k) (Traditional)
- Applicant: Ansar
- Decided: Sep 20, 1995 after 554 days
- Product code: DRT (Monitor, Cardiac (Incl. Cardiotachometer & Rate Alarm))
- Device class: 2
- Regulation: 21 CFR 870.2300
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
3 later devices descend from it; 2 cite it directly.
0 of 4 devices in its family (counting itself) have a Class I recall.

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

## Most influential descendants
- K062068: Intelwave Heart Rate Variability System, Version 1.0 (2006), 1 descendant of its own
- K142551: QANS (Quantitative Autonomic Nervous System) Monitoring System (2015), 0 descendants of its own
- K092809: HRV Acquire (2010), 0 descendants of its own

## Recalls of this device
- Jul 1, 2014 · Class II · Z-2268-2014: The blood pressure (BP) circuit occasionally fails to inflate the blood pressure cuff and the BP circuit fails to activate, resulting in no BP measured.

Source page: https://510kreport.com/device/K941252
Methodology: https://510kreport.com/methodology