# K981800: Sentinel Cholinesterase Liquid Model Number 17.019A & 17.606

- Pathway: 510(k) (Traditional)
- Applicant: Equal Diagnostics, Inc.
- Decided: Jul 6, 1998 after 46 days
- Product code: HIH (Hysteroscope (And Accessories))
- Device class: 2
- Regulation: 21 CFR 884.1690
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1 later device descends from it; 1 cites it directly.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K051444: Sentinel Cholinesterase Liquid (2005), 0 descendants of its own

## Indications for use
For quantitative determination of cholinesterase in serum. For In Vitro diagnostic use only.

Source page: https://510kreport.com/device/K981800
Methodology: https://510kreport.com/methodology