# K921377: P/Meter

- Pathway: 510(k) (Traditional)
- Applicant: Zertl Medical, Inc.
- Decided: Oct 12, 1993 after 567 days
- Product code: DPW (Flowmeter, Blood, Cardiovascular)
- Device class: 2
- Regulation: 21 CFR 870.2100
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
6 later devices descend from it; 1 cites it directly.
0 of 7 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
- K990642: Echoflow Doppler Blood Velocity Meter (1999), 5 descendants of its own
- K013803: Flowguard Device (2002), 4 descendants of its own
- K030357: Quantix/or Device (2003), 2 descendants of its own
- K041180: Quantix or Vessel Stabilizer Device (2004), 1 descendant of its own
- K050088: Quantix/or Blood Flow Monitor; Flexible Probe with Optional Vessel Stabilizer (2005), 0 descendants of its own

Source page: https://510kreport.com/device/K921377
Methodology: https://510kreport.com/methodology