# K932407: Cadwell Easy Writer and Easy Reader

- Pathway: 510(k) (Traditional)
- Applicant: Cadwell Laboratories, Inc.
- Decided: Mar 22, 1994 after 308 days
- Product code: GWQ (Full-Montage Standard Electroencephalograph)
- Device class: 2
- Regulation: 21 CFR 882.1400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
2 later devices descend from it; 2 cite it directly.
0 of 3 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
- K062533: Bwii Eeg Digital, Model PV 1652; Bwii PSG Digital, Model PV 1524 (2006), 1 descendant of its own
- K112107: Bwiii Eeg, Bwiii Eeg Plus, Bwiii PSG, Bwiii PSG Plus (2011), 0 descendants of its own

Source page: https://510kreport.com/device/K932407
Methodology: https://510kreport.com/methodology