# K850668: Electrosurgical Unit 774

- Pathway: 510(k) (Traditional)
- Applicant: Birtcher Corp.
- Decided: May 20, 1985 after 89 days
- Product code: GEI (Electrosurgical, Cutting & Coagulation & Accessories)
- Device class: 2
- Regulation: 21 CFR 878.4400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
1,030 later devices descend from it; 1 cites it directly.
0 of 1,031 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
- K971532: Arthrocare Electrosurgery System (1997), 1,029 descendants of its own
- K974521: Vnus Closure System (1998), 977 descendants of its own
- K982816: Vnus Closure System (1999), 973 descendants of its own
- K012398: Diomed 15 Diode Laser (2002), 714 descendants of its own
- K022266: Aurora SR (2002), 705 descendants of its own

Source page: https://510kreport.com/device/K850668
Methodology: https://510kreport.com/methodology