# K870947: Dynatron 500

- Pathway: 510(k) (Traditional)
- Applicant: Dynatronics Corp.
- Decided: Aug 18, 1987 after 162 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.
67 later devices descend from it; 2 cite it directly.
0 of 68 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
- K952273: Handmaster NMS1 (1996), 55 descendants of its own
- K982482: Handmaster NMS1 (1998), 54 descendants of its own
- K031900: Handmaster (2003), 35 descendants of its own
- K080950: Stiwell MED4 (2009), 34 descendants of its own
- K110179: Incontrol (2012), 21 descendants of its own

Source page: https://510kreport.com/device/K870947
Methodology: https://510kreport.com/methodology