# K955666: EGS4000

- Pathway: 510(k) (Traditional)
- Applicant: S&P Electrical Industries, Inc.
- Decided: Apr 15, 1997 after 489 days
- Product code: IPF (Stimulator, Muscle, Powered)
- Device class: 2
- Regulation: 21 CFR 890.5850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K790847 (1979). 1 ancestor in all.
No later device cites it as a predicate yet.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K790847: Egs Model 300, Alfred V. Greco (1979) Summary page 1.

## Indications for use
Relaxation of Muscle Spasm. Prevention or retardation of disuse atrophy. Increasing local blood circulation. Muscle re-education. Immediate postsurgical stimulation of calf muscles to prevent venous thrombosis. Maintaining or increasing range of motion. Symptomatic relief of chronic intractable pain.

Source page: https://510kreport.com/device/K955666
Methodology: https://510kreport.com/methodology