# K001731: Avid-Nit Loss of Resistance Syringe

- Pathway: 510(k) (Traditional)
- Applicant: Avid Medical, Inc.
- Decided: Aug 29, 2000 after 83 days
- Product code: FMF (Syringe, Piston)
- Device class: 2
- Regulation: 21 CFR 880.5860
- 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.
8 later devices descend from it; 3 cite it directly.
0 of 9 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
- K093863: Epidrum (2010), 3 descendants of its own
- K081524: Spectra-Lor, 10 ML Plastic Loss of Resistance Syringe, L/S, Spectra-Lor, 10ML Plastic Loss of Resistance Syringe L/L (2008), 2 descendants of its own
- K170900: DASH 6 NRFit Lock Syringe + Accessories, DASH 6 NRFit Slip Syringe + Accessories, DASH 6 NRFit Plastic LOR Syringe + Accessories (2017), 1 descendant of its own
- K161883: CompuFlo Epidural Computer Controlled Anesthesia System (2017), 1 descendant of its own
- K221974: EpiFinder (2023), 0 descendants of its own

## Recalls of this device
- Apr 11, 2018 · Class II · Z-2016-2018: Product sterility may be compromised due to unsealed packaging.

Source page: https://510kreport.com/device/K001731
Methodology: https://510kreport.com/methodology