# K922488: Phasis Electromyograph

- Pathway: 510(k) (Traditional)
- Applicant: Biosound, Inc.
- Decided: Mar 2, 1993 after 279 days
- Product code: IKN (Electromyograph, Diagnostic)
- Device class: 2
- Regulation: 21 CFR 890.1375
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
42 later devices descend from it; 2 cite it directly.
0 of 43 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K073415: Nemus System; Nemus PC Peripheral (2008), 40 descendants of its own
- K102610: Focus Emg Device (2011), 34 descendants of its own
- K112052: Carefusion Nicolet Edx (2012), 30 descendants of its own
- K162383: Cadwell Sierra Summit, Cadwell Sierra Ascent (2017), 12 descendants of its own
- K120979: Carefusion Nicolet Edx (2012), 12 descendants of its own

Source page: https://510kreport.com/device/K922488
Methodology: https://510kreport.com/methodology