# K023761: Plateletworks, Models PW-a, PW-C

- Pathway: 510(k) (Traditional)
- Applicant: Helena Laboratories
- Decided: Feb 14, 2003 after 98 days
- Product code: JOZ (System, Automated Platelet Aggregation)
- Device class: 2
- Regulation: 21 CFR 864.5700
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K771198 (1977). 6 ancestors in all.
No later device cites it as a predicate yet.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K990398: Plateletworks, Array Medical, Inc. (1999) Summary page 3.

## Indications for use
Plateletworks (K990398) is an in vitro diagnostic screening assay for the determination of % platelet aggregation in fresh whole blood samples taken during cardiac interventional procedures as measured by a change in platelet count due to activation of functional platelets. It may be used at the point-of-care on the Ichor or Coulter hematology analyzers as a screening tool for the detection of trends suggestive of platelet dysfunction. Any abnormal baseline or otherwise suspicious result would require repeating the Plateletworks test procedure and/or further additional investigation with more definitive test methods, including conventional platelet aggregometry.

Source page: https://510kreport.com/device/K023761
Methodology: https://510kreport.com/methodology