# K884937: Beehive-64 or Beehive-32, Digital Eeg Recording

- Pathway: 510(k) (Traditional)
- Applicant: Grass-Telefactor Product Group
- Decided: Apr 14, 1989 after 137 days
- Product code: EEG (Heat Source For Bleaching Teeth)
- Device class: 1
- Regulation: 21 CFR 872.6475
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
12 later devices descend from it; 1 cites it directly.
0 of 13 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
- K972202: Deeg-Lite (1997), 11 descendants of its own
- K974587: H2O (1998), 9 descendants of its own
- K992291: H20- Tethered Option (1999), 8 descendants of its own
- K033978: ADAM (2004), 6 descendants of its own
- K994142: Grass TS3201/6401 Eeg Amplifier System (2000), 6 descendants of its own

Source page: https://510kreport.com/device/K884937
Methodology: https://510kreport.com/methodology