# K893851: Therastim

- Pathway: 510(k) (Traditional)
- Applicant: Physiodynamics, Inc.
- Decided: Nov 6, 1989 after 165 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
No predicates in its family tree.
3 later devices descend from it; 2 cite it directly.
0 of 4 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
- K093999: Arp Pov Sport (2010), 1 descendant of its own
- K191181: NXPRO Neuromuscular Electrical Stimulation Device (2019), 0 descendants of its own
- K093259: ARP RX100 (2009), 0 descendants of its own

Source page: https://510kreport.com/device/K893851
Methodology: https://510kreport.com/methodology